화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.38, No.5, 613-619, September, 2014
Export Citation
폴리프로필렌/폴리아미드 엘라스토머 블렌드: 모폴로지와 기계적 물성
Polypropylene/Polyamide Elastomer Blends: Morphology and Mechanical Property
Qingsheng Liu†, Yan Xu, Hongxia Zhang1, Yuhao Li2, and Bingyao Deng†
  • Key Laboratory of Eco-Textiles (Ministry of Education), Jiangnan University, Wuxi 214122, China
  • 1Wuxi Entry-Exit Inspection and Quarantine Bureau, Wuxi 214101, China
  • 2China Nonwovens & Industrial Textiles Association, Beijing 100742, China
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The polypropylene/polyamide elastomer (PP/PAE) blends were prepared by melt mixing. PP and PAE in PP/PAE were immiscible completely. The size of PAE domains was large and the clear gap in the interface between PP and PAE existed, which did not meet the conditions enhancing toughness of polymers by elastomer. Therefore, maleic anhydride grafted polypropylene (MP) was used to improve the miscibility between PP and PAE. The miscibility between PP and PAE was improved and the size of dispersed phase PAE decreased by introducing MP. The crystallization of PP became easier by introducing PAE as a nucleating agent. With the increase of PAE content, the melt-crystallization temperatures of PP components in PP/PAE/MP blends increased gradually. The melt-crystallization of the polytetramethylene oxide segment of PAE component in PP/PAE blends were hampered by PP component. In addition, PAE can enhance significantly the toughness of PP, and the tensile strength and modulus did not decrease.
Keywords:polypropylene;polyamide elastomer;morphology;crystallization;mechanical property.
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