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Wang L, Tian XY, Liu ZH, He QY, Li JS, Liu SC, Jian J, Xu S. Fabrication of highly hydrophobic layered double hydroxide decorated with tannic acid cross-linked phosphazene as a novel flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Wang L, Wu K, Ding CJ, Min JJ, Chen HP, Liu ZH, Xi DN, Zeng HY, Jian J, Xu S. Novel hierarchical carbon microspheres@layered double hydroxides@copper lignosulfonate architecture for polypropylene with enhanced flame retardant and mechanical performances. Int J Biol Macromol 2023; 235:123726. [PMID: 36801299 DOI: 10.1016/j.ijbiomac.2023.123726] [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: 12/02/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Due to the inherent defect of flammability of polypropylene (PP), a novel and highly efficient carbon microspheres@layered double hydroxides@copper lignosulfonate (CMSs@LDHs@CLS) flame retardant was designed and prepared, which was attributed to the strong electrostatic interaction between carbon microspheres (CMSs), layered double hydroxides (LDHs) and lignosulfonate as well as the chelation effect of lignosulfonate on copper ions, and then it was incorporated into the PP matrix. Significantly, CMSs@LDHs@CLS not only observably improved its dispersibility in PP matrix, but also simultaneously achieved excellent flame retardant properties for composites. With the addition of 20.0 % CMSs@LDHs@CLS, the limit oxygen index of CMSs@LDHs@CLS and PP composites (PP/CMSs@LDHs@CLS) reached 29.3 % and achieved the UL-94 V-0 rating. Cone calorimeter tests indicated that the peak heat release rate, total heat release and total smoke production of PP/CMSs@LDHs@CLS composites exhibited declines of 28.8 %, 29.2 % and 11.5 %, respectively, compared with those of PP/CMSs@LDHs composites. These advancements were attributed to the better dispersibility of CMSs@LDHs@CLS in PP matrix and illustrated that CMSs@LDHs@CLS observably reduced fire hazards of PP. The flame retardant property of CMSs@LDHs@CLS might relate to condensed phase flame retardant effect of char layer and catalytic charring of copper oxides.
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Affiliation(s)
- Lei Wang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Kun Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Chi-Jie Ding
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jun-Jie Min
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hao-Ping Chen
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Zhi-Hao Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Dan-Ni Xi
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hong-Yan Zeng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
| | - Sheng Xu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
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Yan WJ, Xu S, Tian XY, Min JJ, Liu SC, Ding CJ, Wang NL, Hu Y, Fan QX, Li JS, Zeng HY. Novel bio-based lignosulfonate and Ni(OH)2 nanosheets dual modified layered double hydroxide as an eco-friendly flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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