화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전))
권호 33권 1호
발표분야 고분자 가공/복합재료
제목 Multiwalled Carbon Nanotube Reinforced Thermotropic Liquid Crystal Copolyester Nanocomposites by Simple Melt Compounding
초록 Thermotropic liquid crystal polymer nanocomposites (TLCP) reinforced with a small quantity of multi-walled carbon nanotube (MWCNT) were prepared by melt compounding in a twin-screw extruder. The enhancement of thermal stability of TLCP/MWCNT nanocomposites resulted from the physical barrier effect of the dispersed MWCNT in the polymer nanocomposites. There was significant dependence of the rheological and mechanical properties of TLCP/MWCNT nanocomposites on the MWCNT content. The TLCP/MWCNT nanocomposites exhibited more distinct shear thinning behavior relative to pure TLCP over the whole frequency measured, and the non-terminal behavior observed in the TLCP/MWCNT nanocomposites was attributed to the nanotube-nanotube or nanotube-polymer interaction. The improvement in the mechanical properties of TLCP/MWCNT nanocomposites may be explained by the reinforcement effect of MWCNT with high aspect ratio as well as the uniform dispersion of MWCNT in the TLCP matrix.
저자 최희준1, 김성훈1, 김준영2
소속 1한양대, 2삼성 SDI 중앙(연)
키워드 Carbon nanotube (CNT); Liquid-crystalline polymer (LCP); Melt compounding; Polymer nanocomposites
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