1
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Bashir A, Niu H, Maqbool M, Usman A, Lv R, Ashraf Z, Cheng M, Bai S. A Novel Thermal Interface Material Composed of Vertically Aligned Boron Nitride and Graphite Films for Ultrahigh Through-Plane Thermal Conductivity. SMALL METHODS 2024; 8:e2301788. [PMID: 38507731 DOI: 10.1002/smtd.202301788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/05/2024] [Indexed: 03/22/2024]
Abstract
The relentless drive toward miniaturization in microelectronic devices has sparked an urgent need for materials that offer both high thermal conductivity (TC) and excellent electrical insulation. Thermal interface materials (TIMs) possessing these dual attributes are highly sought after for modern electronics, but achieving such a combination has proven to be a formidable challenge. In this study, a cutting-edge solution is presented by developing boron nitride (BN) and graphite films layered silicone rubber composites with exceptional TC and electrical insulation properties. Through a carefully devised stacking-cutting method, the high orientation degree of both BN and graphite films is successfully preserved, resulting in an unprecedented through-plane TC of 23.7 Wm-1 K-1 and a remarkably low compressive modulus of 4.85 MPa. Furthermore, the exceptional properties of composites, including low thermal resistance and high resilience rate, make them a reliable and durable option for various applications. Practical tests demonstrate their outstanding heat dissipation performance, significantly reducing CPU temperatures in a computer cooling system. This research work unveils the possible upper limit of TC in BN-based TIMs and paves the way for their large-scale practical implementation, particularly in the thermal management of next-generation electronic devices.
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Affiliation(s)
- Akbar Bashir
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, P. R. China
| | - Hongyu Niu
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Muhammad Maqbool
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Ali Usman
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Material, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ruicong Lv
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Zubair Ashraf
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Material, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ming Cheng
- Peking University Nanchang Innovation Institute, 14#1-2 Floor, High-level Talent Industrial Park, High-tech District, Nanchang, Jiangxi Province, 330224, P. R. China
- College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Shulin Bai
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
- Peking University Nanchang Innovation Institute, 14#1-2 Floor, High-level Talent Industrial Park, High-tech District, Nanchang, Jiangxi Province, 330224, P. R. China
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2
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Zhang Y, Li X, Yan C, Wang Y, Zhu X, Jiang W. Electric field-induced orientation of silicon carbide whiskers for directional and localized thermal management. J Colloid Interface Sci 2023; 648:834-845. [PMID: 37327626 DOI: 10.1016/j.jcis.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/25/2023] [Accepted: 06/02/2023] [Indexed: 06/18/2023]
Abstract
Incorporating high thermal conductivity fillers into the matrix material and optimizing their distribution offers a targeted approach to controlling heat flow conduction. However, the design of composite microstructure, particularly the precise orientation of fillers in the micro-nano domain, remains a formidable challenge to date. Here, we report a novel method for constructing directional/localized thermal conduction pathways based on silicon carbide whiskers (SiCWs) in the polyacrylamide (PAM) gel matrix using micro-structured electrodes. SiCWs are one-dimensional nanomaterials with ultra-high thermal conductivity, strength, and hardness. The outstanding properties of SiCWs can be maximized through ordered orientation. Under the conditions of 18 V voltage and 5 MHz frequency, SiCWs can achieve complete orientation in only about 3 s. In addition, the prepared SiCWs/PAM composite exhibits interesting properties, including enhanced thermal conductivity and localized conduction of heat flow. When the SiCWs concentration is 0.5 g·L-1, the thermal conductivity of SiCWs/PAM composite is about 0.7 W·m-1·K-1, which is 0.3 W·m-1·K-1 higher than that of PAM gel. This work achieved structural modulation of the thermal conductivity by constructing a specific spatial distribution of SiCWs units in the micro-nanoscale domain. The resulting SiCWs/PAM composite has unique localized heat conduction properties and is expected to become a new generation of composites with better characteristics and functions in thermal transmission and thermal management.
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Affiliation(s)
- Yajun Zhang
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China.
| | - Xiangmeng Li
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China; State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, China
| | - Chao Yan
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Yu Wang
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Xijing Zhu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Weitao Jiang
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
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3
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Wu M, Li J, Zhang X, Liu S, Zhao J, Xie W. Design of Imide Oligomer-Mediated MOF Clusters for Solar Cell Encapsulation Systems by Interface Fusion Strategy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206748. [PMID: 36709491 PMCID: PMC10037975 DOI: 10.1002/advs.202206748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/30/2022] [Indexed: 06/18/2023]
Abstract
Dielectric encapsulation materials are promising for solar cell areas, but the unsatisfactory light-management capability and relatively poor dielectric properties restrict their further applications in photovoltaic and microelectronic devices. Herein, an interface fusion strategy to engineer the interface of MOF (UiO-66-NH2 ) with anhydride terminated imide oligomer (6FDA-TFMB) is designed and a novel MOF cluster (UFT) with enhanced forward scattering and robust porosity is prepared. UFT is applied as an optical and dielectric modifier for bisphenol A epoxy resin (DGEBA), and UFT epoxy composites with high transmittance (>80%), tunable haze (45-58%) and excellent dielectric properties can be prepared at low UFT contents (0.5-1 wt%), which delivers an optimal design for dielectric encapsulation systems with efficient light management in solar cells. Additionally, UFT epoxy composites also show excellent UV blocking, and hydrophobic, thermal and mechanical properties. This work provides a template for the synthesis of covalent bond-mediated nanofillers and for the modulation of haze and dielectric properties of dielectric encapsulation materials for energy systems, semiconductors, microelectronics, and more.
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Affiliation(s)
- Minghong Wu
- School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou510640P. R. China
| | - Jiaxin Li
- School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou510640P. R. China
| | - Xi Zhang
- School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou510640P. R. China
| | - Shumei Liu
- School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou510640P. R. China
| | - Jianqing Zhao
- School of Materials Science and EngineeringState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou510640P. R. China
| | - Weiqi Xie
- School of Minerals Processing and BioengineeringCentral South UniversityChangsha410083P. R. China
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4
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Ma Y, He Z, Han Y. A promising low‐dielectric‐constant material with good comprehensive performance upon heating. J Appl Polym Sci 2023. [DOI: 10.1002/app.53769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Yingyi Ma
- School of Material Science and Chemical Engineering Harbin University of Science and Technology Harbin China
| | - Zian He
- School of Material Science and Chemical Engineering Harbin University of Science and Technology Harbin China
| | - Yuhang Han
- School of Material Science and Chemical Engineering Harbin University of Science and Technology Harbin China
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5
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Han Y, Ma Y, Zhang J, Yao S, Xu K. Overall Improvement in Dielectric, Water Resistance and Mechanical Properties of Polyimide Film via Synergy between GO and Sandwich-type Porous Structure. Chem Asian J 2023; 18:e202201130. [PMID: 36504338 DOI: 10.1002/asia.202201130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/14/2022]
Abstract
Simultaneous improvement in dielectric, water resistance and mechanical properties of polyimide (PI) films is critical for their practical use, but difficult to achieve. Herein, a sandwich-type porous GO/PI film with excellent comprehensive properties was obtained through integrating a GO-containing complex, fluorine-containing porous structure and sandwich-type distribution of porous structure by a simple, low-cost and green breath figure method. With the addition of only a small amount of GO-containing complex, a low dielectric constant of 2.21, water absorption of 0.51%, increment in dielectric constant after moisture treatment of 1.60% and high tensile strength of 113.1 MPa, tensile modulus of 1.70 GPa, with 35.39%, 79.42%, 81.81% of reduction and 17.22%, 21.43% of increase compared to PI film were shown, respectively. Moreover, these properties could be adjusted through regulating the component and porous structure by changing the parameters of breath figure method. These outstanding properties make the film a promising candidate for high-performance low-dielectric materials.
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Affiliation(s)
- Yuhang Han
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China
| | - Yingyi Ma
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China
| | - Junming Zhang
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China
| | - Shun Yao
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China
| | - Kaizheng Xu
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China
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6
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Chen P, Ge X, Zhang Z, Yin S, Liang W, Ge J. Silicone-Based Thermally Conductive Gel Fabrication via Hybridization of Low-Melting-Point Alloy-Hexagonal Boron Nitride-Graphene Oxide. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:490. [PMID: 36770451 PMCID: PMC9920594 DOI: 10.3390/nano13030490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Thermal contact resistance between the microprocessor chip and the heat sink has long been a focus of thermal management research in electronics. Thermally conductive gel, as a thermal interface material for efficient heat transfer between high-power components and heat sinks, can effectively reduce heat accumulation in electronic components. To reduce the interface thermal resistance of thermally conductive gel, hexagonal boron nitride and graphene oxide were hybridized with a low-melting-point alloy in the presence of a surface modifier, humic acid, to obtain a hybrid filler. The results showed that at the nanoscale, the low-melting-point alloy was homogeneously composited and encapsulated in hexagonal boron nitride and graphene oxide, which reduced its melting range. When the temperature reached the melting point of the low-melting-point alloy, the hybrid powder exhibited surface wettability. The thermal conductivity of the thermally conductive gel prepared with the hybrid filler increased to 2.18 W/(m·K), while the corresponding thermal contact resistance could be as low as 0.024 °C/W. Furthermore, the thermal interface material maintained its excellent electric insulation performance, which is necessary for electronic device applications.
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Affiliation(s)
- Peijia Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Xin Ge
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhicong Zhang
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Shuang Yin
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Weijie Liang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jianfang Ge
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
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7
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Zuo S, Lan Y, Luo J, Zhou F, Xu L, Xie S, Wei X, Zhou L, Ma L, Li X, Yin C. Angular-Shaped Boron Nitride Nanosheets with a High Aspect Ratio to Improve the Out-of-Plane Thermal Conductivity of Polyimide Composite Films. ACS OMEGA 2022; 7:43273-43282. [PMID: 36467912 PMCID: PMC9713879 DOI: 10.1021/acsomega.2c06013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/03/2022] [Indexed: 06/17/2023]
Abstract
Polyimide/boron nitride nanosheet (PI/BNNS) composite films have potential applications in the field of electrical devices due to the superior thermal conductivity and outstanding insulating properties of the boron nitride nanosheet. In this study, the boron nitride nanosheet (BNNS-t) was prepared by the template method using sodium chloride as the template, and B2O3 and flowing ammonia as the boron and nitrogen sources, respectively. Then, the PI/BNNS-t composite films were investigated with different loading of BNNS-t as thermally conductive fillers. The results show that BNNS-t has a high aspect ratio and a uniform lateral dimension, with a large dimension and a thin thickness, and there are a few nanosheets with angular shapes in the as-obtained BNNS-t. The synergistic effect of the above characteristics for BNNS-t is beneficial to constructing the three-dimensional heat conduction network of the PI/BNNS-t composite films, which can significantly improve the out-of-plane thermal conduction properties. And then, the out-of-plane thermal conductivity of the PI/BNNS-t composite film achieves 0.67 W m-1 K-1 at 40% loading, which is nearly 3.5 times that of the PI film.
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Affiliation(s)
- Song Zuo
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Yu Lan
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Jinpeng Luo
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Fei Zhou
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Lexiang Xu
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Shaoxiong Xie
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Xiuqin Wei
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Lang Zhou
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Lei Ma
- Guangxi
Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin541004, China
| | - Xiaomin Li
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
| | - Chuanqiang Yin
- Institute
of Photovoltaics, Nanchang University, Nanchang330031, China
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8
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Owais M, Shiverskii A, Pal AK, Mahato B, Abaimov SG. Recent Studies on Thermally Conductive 3D Aerogels/Foams with the Segregated Nanofiller Framework. Polymers (Basel) 2022; 14:polym14224796. [PMID: 36432922 PMCID: PMC9695331 DOI: 10.3390/polym14224796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/07/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
As technology advances toward ongoing circuit miniaturization and device size reduction followed by improved power density, heat dissipation is becoming a key challenge for electronic equipment. Heat accumulation can be prevented if the heat from electrical equipment is efficiently exported, ensuring a device's lifespan and dependability and preventing otherwise possible mishaps or even explosions. Hence, thermal management applications, which include altering the role of aerogels from thermally insulative to thermally conductive, have recently been a hot topic for 3D-aerogel-based thermal interface materials. To completely comprehend three-dimensional (3D) networks, we categorized and comparatively analyzed aerogels based on carbon nanomaterials, namely fibers, nanotubes, graphene, and graphene oxide, which have capabilities that may be fused with boron nitride and impregnated for better thermal performance and mechanical stability by polymers, including epoxy, cellulose, and polydimethylsiloxane (PDMS). An alternative route is presented in the comparative analysis by carbonized cellulose. As a result, the development of structurally robust and stiff thermally conductive aerogels for electronic packaging has been predicted to increase polymer thermal management capabilities. The latest trends include the self-organization of an anisotropic structure on several hierarchical levels within a 3D framework. In this study, we highlight and analyze the recent advances in 3D-structured thermally conductive aerogels, their potential impact on the next generation of electronic components based on advanced nanocomposites, and their future prospects.
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Affiliation(s)
- Mohammad Owais
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Correspondence: (M.O.); (S.G.A.)
| | - Aleksei Shiverskii
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Amit Kumar Pal
- Center for Energy Science & Technology, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Biltu Mahato
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Sergey G. Abaimov
- Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
- Correspondence: (M.O.); (S.G.A.)
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9
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Cheng S, Tang Y, Gao Q, Wang X, Li A, Yuan Y, Guan S. Biocompatible graphene/chitosan hybrid aerogel reinforced polydimethylsiloxane nanocomposite with excellent dielectric properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.53261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shangru Cheng
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Yaokai Tang
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Qiangmin Gao
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Xincheng Wang
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Anqi Li
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Yingxin Yuan
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
| | - Shanshan Guan
- Key Laboratory of Rubber‐Plastics, Ministry of Education, School of Polymer Science and Engineering Qingdao University of Science & Technology Qingdao China
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10
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Flexible h-BN/fluorinated poly (arylene ether nitrile) fibrous composite film with low dielectric constant and high thermal conductivity fabricated via coaxial electrospinning hot-pressing technique. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Khoury JF, Vitale JC, Larson TL, Ao G. Boron nitride nanotubes enhance mechanical properties of fibers from nanotube/polyvinyl alcohol dispersions. NANOSCALE ADVANCES 2021; 4:77-86. [PMID: 36132953 PMCID: PMC9416948 DOI: 10.1039/d1na00677k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/28/2021] [Indexed: 05/26/2023]
Abstract
Effectively translating the promising properties of boron nitride nanotubes (BNNTs) into macroscopic assemblies has vast potential for applications, such as thermal management materials and protective fabrics against hazardous environment. We spun fibers from aqueous dispersions of BNNTs in polyvinyl alcohol (PVA) solutions by a wet spinning method. Our results demonstrate that BNNTs/PVA fibers exhibit enhanced mechanical properties, which are affected by the nanotube and PVA concentrations, and the coagulation solvent utilized. Compared to the neat PVA fibers, we obtained roughly 4.3-, 12.7-, and 1.5-fold increases in the tensile strength, Young's modulus, and toughness, respectively, for the highest performing BNNTs/PVA fibers produced from dispersions containing as low as 0.1 mass% of nanotube concentration. Among the coagulation solvents tested, we found that solvents with higher polarity such as methanol and ethanol generally produced fibers with improved mechanical properties, where the fiber toughness shows a strong correlation with solvent polarity. These findings provide insights into assembling BNNTs-based fibers with improved mechanical properties for developing unique applications.
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Affiliation(s)
- Joe F Khoury
- Department of Chemical and Biomedical Engineering, Washkewicz College of Engineering, Cleveland State University 2121 Euclid Avenue Cleveland OH 44115 USA
| | - Jacob C Vitale
- Department of Chemical and Biomedical Engineering, Washkewicz College of Engineering, Cleveland State University 2121 Euclid Avenue Cleveland OH 44115 USA
| | - Tanner L Larson
- Department of Chemical and Biomedical Engineering, Washkewicz College of Engineering, Cleveland State University 2121 Euclid Avenue Cleveland OH 44115 USA
| | - Geyou Ao
- Department of Chemical and Biomedical Engineering, Washkewicz College of Engineering, Cleveland State University 2121 Euclid Avenue Cleveland OH 44115 USA
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12
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An L, Gu R, Zhong B, Wang J, Zhang J, Yu Y. Quasi-Isotropically Thermal Conductive, Highly Transparent, Insulating and Super-Flexible Polymer Films Achieved by Cross Linked 2D Hexagonal Boron Nitride Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101409. [PMID: 34636142 DOI: 10.1002/smll.202101409] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Polymer-based thermal management materials (TIMs) show great potentials as TIMs due to their excellent properties, such as high insulation, easy processing, and good flexibility. However, the limited thermal conductivity seriously hinders their practical applications in high heat generation devices. Herein, highly transparent, insulating, and super-flexible cellulose reinforced polyvinyl alcohol/nylon12 modified hexagonal boron nitride nanosheet (PVA/(CNC/PA-BNNS)) films with quasi-isotropic thermal conductivity are successfully fabricated through a vacuum filtration and subsequent self-assembly process. A special structure composed of horizontal stacked hexagonal boron nitride nanosheets (h-BNNSs) connected by their warping edges in longitudinal direction, which is strengthened by cellulose nanocrystals, is formed in PVA matrix during self-assembly process. This special structure makes the PVA/(CNC/PA-BNNS) films show excellent thermal conductivity with an in-plane thermal conductivity of 14.21 W m-1 K-1 and a through-plane thermal conductivity of 7.29 W m-1 K-1 . Additionally, the thermal conductive anisotropic constants of the as-obtained PVA/(CNC/PA-BNNS) films are in the range of 1 to 4 when the h-BNNS contents change from 0 to 60 wt%, exhibiting quasi-isotropic thermal conductivity. More importantly, the PVA/(CNC/PA-BNNS) films exhibit excellent transparency, super flexibility, outstanding mechanical strength, and electric insulation, making them very promising as TIMs for highly efficient heat dissipation of diverse electronic devices.
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Affiliation(s)
- Lulu An
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Rong Gu
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bo Zhong
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, P. R. China
| | - Jilin Wang
- School of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China
| | - Junyan Zhang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuanlie Yu
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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13
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Robust Biomimetic Nacreous Aramid Nanofiber Composite Films with Ultrahigh Thermal Conductivity by Introducing Graphene Oxide and Edge-Hydroxylated Boron Nitride Nanosheet. NANOMATERIALS 2021; 11:nano11102544. [PMID: 34684986 PMCID: PMC8539025 DOI: 10.3390/nano11102544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/07/2021] [Accepted: 09/15/2021] [Indexed: 11/26/2022]
Abstract
Dielectric materials with excellent thermally conductive and mechanical properties can enable disruptive performance enhancement in the areas of advanced electronics and high-power devices. However, simultaneously achieving high thermal conductivity and mechanical strength for a single material remains a challenge. Herein, we report a new strategy for preparing mechanically strong and thermally conductive composite films by combining aramid nanofibers (ANFs) with graphene oxide (GO) and edge-hydroxylated boron nitride nanosheet (BNNS-OH) via a vacuum-assisted filtration and hot-pressing technique. The obtained ANF/GO/BNNS film exhibits an ultrahigh in-plane thermal conductivity of 33.4 Wm−1 K−1 at the loading of 10 wt.% GO and 50 wt.% BNNS-OH, which is 2080% higher than that of pure ANF film. The exceptional thermal conductivity results from the biomimetic nacreous “brick-and-mortar” layered structure of the composite film, in which favorable contacting and overlapping between the BNNS-OH and GO is generated, resulting in tightly packed thermal conduction networks. In addition, an outstanding tensile strength of 93.3 MPa is achieved for the composite film, owing to the special biomimetic nacreous structure as well as the strong π−π interactions and extensive hydrogen bonding between the GO and ANFs framework. Meanwhile, the obtained composite film displays excellent thermostability (Td = 555 °C, Tg > 400 °C) and electrical insulation (4.2 × 1014 Ω·cm). We believe that these findings shed some light on the design and fabrication of multifunctional materials for thermal management applications.
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Lin Y, Kang Q, Wei H, Bao H, Jiang P, Mai YW, Huang X. Spider Web-Inspired Graphene Skeleton-Based High Thermal Conductivity Phase Change Nanocomposites for Battery Thermal Management. NANO-MICRO LETTERS 2021; 13:180. [PMID: 34406526 PMCID: PMC8374024 DOI: 10.1007/s40820-021-00702-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/12/2021] [Indexed: 05/23/2023]
Abstract
Phase change materials (PCMs) can be used for efficient thermal energy harvesting, which has great potential for cost-effective thermal management and energy storage. However, the low intrinsic thermal conductivity of polymeric PCMs is a bottleneck for fast and efficient heat harvesting. Simultaneously, it is also a challenge to achieve a high thermal conductivity for phase change nanocomposites at low filler loading. Although constructing a three-dimensional (3D) thermally conductive network within PCMs can address these problems, the anisotropy of the 3D framework usually leads to poor thermal conductivity in the direction perpendicular to the alignment of fillers. Inspired by the interlaced structure of spider webs in nature, this study reports a new strategy for fabricating highly thermally conductive phase change composites (sw-GS/PW) with a 3D spider web (sw)-like structured graphene skeleton (GS) by hydrothermal reaction, radial freeze-casting and vacuum impregnation in paraffin wax (PW). The results show that the sw-GS hardly affected the phase transformation behavior of PW at low loading. Especially, sw-GS/PW exhibits both high cross-plane and in-plane thermal conductivity enhancements of ~ 1260% and ~ 840%, respectively, at an ultra-low filler loading of 2.25 vol.%. The thermal infrared results also demonstrate that sw-GS/PW possessed promising applications in battery thermal management.
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Affiliation(s)
- Ying Lin
- Shanghai Key Lab of Electrical Insulation and Thermal Ageing, The State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Qi Kang
- Shanghai Key Lab of Electrical Insulation and Thermal Ageing, The State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Han Wei
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Hua Bao
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Pingkai Jiang
- Shanghai Key Lab of Electrical Insulation and Thermal Ageing, The State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yiu-Wing Mai
- Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering J07, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Xingyi Huang
- Shanghai Key Lab of Electrical Insulation and Thermal Ageing, The State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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Yang G, Zhang X, Pan D, Zhang W, Shang Y, Su F, Ji Y, Liu C, Shen C. Highly Thermal Conductive Poly(vinyl alcohol) Composites with Oriented Hybrid Networks: Silver Nanowire Bridged Boron Nitride Nanoplatelets. ACS APPLIED MATERIALS & INTERFACES 2021; 13:32286-32294. [PMID: 34185492 DOI: 10.1021/acsami.1c08408] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
With the increasing demand for thermal management materials in the highly integrated electronics area, building efficient heat-transfer networks to obtain advanced thermally conductive composites is of great significance. In the present work, highly thermally conductive poly(vinyl alcohol) (PVA)/boron nitride nanoplatelets@silver nanowires (BNNS@AgNW) composites were fabricated via the combination of the electrospinning and the spraying technique, followed by a hot-pressing method. BNNS are oriented along the in-plane direction, while AgNWs with a high aspect ratio can help to construct a thermal conductive network effectively by bridging BNNS in the composites. The PVA/BNNS@AgNW composites showed high in-plane thermal conductivity (TC) of 10.9 W/(m·K) at 33 wt % total fillers addition. Meanwhile, the composite shows excellent thermal dispassion capability when it is taken as a thermal interface material of a working light-emitting diode (LED) chip, which is certified by capturing the surface temperature of the LED chip. In addition, the out-of-plane electrical conductivity of the composites is below 10-12 S/cm. The composites with outstanding thermal conductive and electrical insulating properties hold promise for application in electrical packaging and thermal management.
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Affiliation(s)
- Gui Yang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Xiaodong Zhang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Duo Pan
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Wei Zhang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Ying Shang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Fengmei Su
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Youxin Ji
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
| | - Changyu Shen
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, P. R. China
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Wei X, Yin G, Zhou X, Li L, Li M, Qin Y, Hou X, Song G, Ali Z, Dai W, Zhao S, Fang X, Lin CT, Jiang N, Yu J. Carbon nano-onions as a nanofiller for enhancing thermal conductivity of epoxy composites. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01799-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Zhang C, Huang R, Wang P, Wang Y, Zhou Z, Zhang H, Wu Z, Li L. Highly Compressible, Thermally Conductive, yet Electrically Insulating Fluorinated Graphene Aerogel. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58170-58178. [PMID: 33337132 DOI: 10.1021/acsami.0c19628] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Carbon-based aerogels have drawn substantial attention for a wide scope of applications. However, the high intrinsic electrical conductivity limits their potential thermal management application in electronic packaging materials. Herein, a highly compressible, thermally conductive, yet electrically insulating fluorinated graphene aerogel (FGA) is developed through a hydrofluoric acid-assisted hydrothermal process. The macroscopic-assembled FGA constituting of tailored interconnected graphene networks with tunable fluorine coverage shows excellent elasticity and fatigue resistance for compression, despite a low density of 10.6 mg cm-3. Moreover, the aerogel is proved to be highly insulating, with the observed lowest electrical conductivity reaching 4 × 10-7 S cm-1. Meanwhile, the aerogel exhibits prominent heat dissipation performance in a typical cooling procedure, which can be used to fabricate thermoconductive polymer composites for electronic packaging.
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Affiliation(s)
- Chi Zhang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rongjin Huang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Wang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongguang Wang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhengrong Zhou
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hengcheng Zhang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhixiong Wu
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Laifeng Li
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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