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Xie X, Yang D. Achieving High Thermal Conductivity and Satisfactory Insulating Properties of Elastomer Composites by Self-Assembling BN@GO Hybrids. Polymers (Basel) 2023; 15:polym15030523. [PMID: 36771823 PMCID: PMC9921282 DOI: 10.3390/polym15030523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 01/20/2023] Open
Abstract
With increasing heat accumulation in advanced modern electronic devices, dielectric materials with high thermal conductivity (λ) and excellent electrical insulation have attracted extensive attention in recent years. Inspired by mussel, hexagonal boron nitride (hBN) and graphene oxide (GO) are assembled to construct mhBN@GO hybrids with the assistance of poly(catechol-polyamine). Then, mhBN@GO hybrids are dispersed in carboxy nitrile rubber (XNBR) latex via emulsion coprecipitation to form elastomer composites with a high λ and satisfactory insulating properties. Thanks to the uniform dispersion of mhBN@GO hybrids, the continuous heat conduction pathways exert a significant effect on enhancing the λ and decreasing the interface thermal resistance of XNBR composites. In particular, the λ value of 30 vol% mhBN@GO/XNBR composite reaches 0.4348 W/(m·K), which is 2.7 times that of the neat XNBR (0.1623 W/(m·K)). Meanwhile, the insulating hBN platelets hinder the electron transfer between adjacent GO sheets, leading to satisfactory electrical insulation in XNBR composites, whose AC conductivity is as low as 10-10 S/cm below 100 Hz. This strategy opens up new prospects in the assembly of ceramic and carbonaceous fillers to prepare dielectric elastomer composites with high λ and satisfactory electrical insulation, making them promising for modern electrical systems.
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Affiliation(s)
- Xing Xie
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Dan Yang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Correspondence:
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Xia J, Qin Y, Wei X, Li L, Li M, Kong X, Xiong S, Cai T, Dai W, Lin CT, Jiang N, Fang S, Yi J, Yu J. Enhanced Thermal Conductivity of Polymer Composite by Adding Fishbone-like Silicon Carbide. Nanomaterials (Basel) 2021; 11:2891. [PMID: 34835656 PMCID: PMC8620080 DOI: 10.3390/nano11112891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 11/16/2022]
Abstract
The rapid development of chip technology has all put forward higher requirements for highly thermally conductive materials. In this work, a new type of material of Fishbone-like silicon carbide (SiC) material was used as the filler in a polyvinylidene fluoride (PVDF) matrix. The silicon carbide/polyvinylidene fluoride (SiC/PVDF) composites were successfully prepared with different loading by a simple mixing method. The thermal conductivity of SiC/PVDF composite reached 0.92 W m-1 K-1, which is 470% higher than that of pure polymer. The results show that using the filler with a new structure to construct thermal conductivity networks is an effective way to improve the thermal conductivity of PVDF. This work provides a new idea for the further application in the field of electronic packaging.
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Affiliation(s)
- Juncheng Xia
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225009, China;
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Yue Qin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Xianzhe Wei
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Linhong Li
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maohua Li
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Xiangdong Kong
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Shaoyang Xiong
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
| | - Tao Cai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen Dai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cheng-Te Lin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nan Jiang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuangquan Fang
- School of Mechanical Engineering, Yangzhou University, Yangzhou 225009, China;
| | - Jian Yi
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinhong Yu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; (Y.Q.); (X.W.); (L.L.); (M.L.); (X.K.); (S.X.); (T.C.); (W.D.); (C.-T.L.); (N.J.)
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Cao X, Chi X, Deng X, Sun Q, Gong X, Yu B, Yuen ACY, Wu W, Li RKY. Facile Synthesis of Phosphorus and Cobalt Co-Doped Graphitic Carbon Nitride for Fire and Smoke Suppressions of Polylactide Composite. Polymers (Basel) 2020; 12:polym12051106. [PMID: 32408685 PMCID: PMC7285335 DOI: 10.3390/polym12051106] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/25/2020] [Accepted: 05/06/2020] [Indexed: 11/16/2022] Open
Abstract
Due to the unique two-dimensional structure and features of graphitic carbon nitride (g-C3N4), such as high thermal stability and superior catalytic property, it is considered to be a promising flame retardant nano-additive for polymers. Here, we reported a facile strategy to prepare cobalt/phosphorus co-doped graphitic carbon nitride (Co/P-C3N4) by a simple and scalable thermal decomposition method. The structure of Co/P-C3N4 was confirmed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The carbon atoms in g-C3N4 were most likely substituted by phosphorous atoms. The thermal stability of polylactide (PLA) composites was increased continuously with increasing the content of Co/P-C3N4. In contrast to the g-C3N4, the Polylactide (PLA) composites containing Co/P-C3N4 exhibited better flame retardant efficiency and smoke suppression. With the addition of 10 wt % Co/P-C3N4, the peak heat release rate (PHRR), carbon dioxide (CO2) production (PCO2P) and carbon oxide (CO) production (PCOP) values of PLA composites decreased by 22.4%, 16.2%, and 38.5%, respectively, compared to those of pure PLA, although the tensile strength of PLA composites had a slightly decrease. The char residues of Co/P-C3N4 composites had a more compact and continuous structure with few cracks. These improvements are ascribed to the physical barrier effect, as well as catalytic effects of Co/P-C3N4, which inhibit the rapid release of combustible gaseous products and suppression of toxic gases, i.e., CO.
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Affiliation(s)
- Xianwu Cao
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Xiaoning Chi
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Xueqin Deng
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
| | - Qijun Sun
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
| | - Xianjing Gong
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
| | - Bin Yu
- Centre for Future Materials, University of Southern Queensland, Toowoomba 4350, Australia
- Correspondence: (B.Y.); (W.W.)
| | - Anthony Chun Yin Yuen
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney 2052, Australia;
| | - Wei Wu
- National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Guangzhou 510640, China; (X.C.); (X.C.); (X.D.)
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
- Correspondence: (B.Y.); (W.W.)
| | - Robert Kwow Yiu Li
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, China; (Q.S.); (X.G.); (R.K.Y.L.)
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