화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터)
권호 43권 2호
발표분야 고분자가공/복합재료
제목 Effect of non-covalent functionalized graphites nanoplatelets on the thermal conductivity of epoxy composites
초록 The PDMAEMA-b-PMMA ionic block copolymer (PIB) compatibilizers was synthesized by the reversible addition fragmentation chain transfer (RAFT) polymerization. Non-covalent functionalization was used to functionalize graphites nanoplatelets (GNPs) through π–π stacking of pyrene molecules with a functional segmented polymer chain. The biphenyl molecules of ionic block copolymer compatibilizers were used to improve crystallinity of GNPs/epoxy composites. The BP_PIB functionalized GNPs/epoxy composites showed about 7.75% higher degree of crystallinity than epoxy resin. Furthermore, The BP_PIB functionalized GNPs/epoxy composites exhibited in a remarkable improvement in the thermal conductivity. The thermal conductivity of 30 wt.% BP_PIB-GNPs/epoxy has about 23.4% higher than that of pristine GNPs/epoxy composites. The BP_PIB on the GNPs surface not only plays an important role to facilitate a homogeneous dispersion in the polymer matrix but also improves the GNPs–polymer interaction.
저자 염용식, 윤호규, 서흔영, 남채윤, 고동원
소속 고려대
키워드 Graphites nanoplatelets; Nano composites; Polymer-matrix composites; B. Thermal properties; Compatibilizer; Crystallinity
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