Self‐healable and reprocessible liquid crystalline elastomer and its highly thermal conductive composites by incorporating graphene via in‐situ polymerization. Issue 4 (8th August 2020)

• Record Type: Journal Article
• Authors: Zhang, Qian; Chen, Guokang; Wu, Kun; Shi, Jun; Liang, Liyan; Lu, Mangeng
• Is Part Of: Journal of applied polymer science. Volume 138:Issue 4(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-08-08
• Subjects: elastomers -- mechanical properties -- photopolymerization -- thermal properties; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.49748
• Languages: English
• ISSNs: 0021-8995

Abstract

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. Abstract : A high thermal conductive and disulfide‐based reprocessible liquid crystalline elastomer/graphene composite has been fabricated successfully. The obtained composites exhibited acceptable reprocessing efficiency and desired thermal conductivity (5.08 Wm −1 K −1 ).