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Self-healable and reprocessible liquid crystalline elastomer and its highly thermal conductive composites by incorporating graphene via in-situ polymerization |
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| Authors: | Qian Zhang Guokang Chen Kun Wu Jun Shi Liyan Liang Mangeng Lu |
| Affiliation: | 1. Guangzhou institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China
Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou, China CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou, China University of Chinese Academy of Sciences, Beijing, China;2. College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, China;3. Guangzhou institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou, China CAS Engineering Laboratory for Special Fine Chemicals, Guangzhou, China;4. Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics, Guangzhou, China;5. Guangzhou institute of Chemistry, Chinese Academy of Sciences, Guangzhou, China |
| Abstract: | The booming of modern electronic devices featuring increasing power and multi-functionalization demands novel high thermal conductive materials with various functions, such as self-healing property and high deformability, while traditional polymer-based or metallic-based materials could hardly provide. Therefore, we report a high thermal conductive and disulfide-based self-healable and reprocessible liquid crystalline elastomer (SHLCE) composite by incorporating graphene nanoplates (GNPs) fillers. The obtained GNPs/SHLCE composites exhibited desired thermal conductivity (5.08 Wm?1 K?1) when the content of GNPs was 20 wt% to the composites. Moreover, the GNPs/SHLCE composites showed intriguing recycled performance (Tensile strength after recycle could maintain over 93% compared with that of original composites). Furthermore, we concluded that the improved thermal conductivity of GNPs/SHLCE composites was beneficial to the thermal induced reprocessible and shelf-healable systems. |
| Keywords: | elastomers mechanical properties photopolymerization thermal properties |