화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.13, No.1, 19-29, February, 2005
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Deformation Behavior and Nucleation Activity of a Thermotropic Liquid-Crystalline Polymer in Poly(butylene terephthalate)-Based Composites
Jun Young Kim, Seong Wook Kang, Seong Hun Kim†, Byoung Chul Kim, Kwang Bo Shim1, and Jung Gyu Lee2
  • Department of Fiber and Polymer Engineering, College of Engineering, Hanyang University, 17 Haengdang, Seongdong, Seoul 133-791, Korea
  • 1Department of Ceramic Engineering, CPRC, College of Engineering, Hanyang University, 17 Haengdang, Seongdong, Seoul 133-791, Korea
  • 2SKC Film R&D Center, 911 Chongja-1, Changan, Suwon, Gyeonggi 440-301, Korea
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Polymer composites based on a thermotropic liquid-crystalline polymer (TLCP) and poly(butyleneterephthalate) (PBT) were prepared using a melt blending process. Polymer composites consisting of bulk cheap polyester with a small quantity of expensive TLCP are of interest from a commercial perspective. The interactions between the PBT chains and the flexible poly(ethylene terephthalate) (PET) units in the TLCP phase resulted in an improvement in the compatibility of PBT/TLCP composites. TLCP droplets deformed and fragmented into smaller droplets in the PBT/TLCP composites, which resulted in TLCP fibrillation through the effective deformation of the TLCP droplets. The nucleation activities of the PBT/TLCP composites increased by adding even a small amount of the TLCP component.
Keywords:composites;deformation;liquid-crystalline polymers (LCP);miscibility;nucleation;poly(butylene terephthalate) (PBT).
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