高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 981.

• 论文 • 上一篇    下一篇

热致液晶共聚酯酰胺/PET共混物的流变性能和原位增强特性

解孝林1, 吴大诚2   

  1. 1. 浙江大学高分子科学与工程研究所聚合反应工程国家重点实验室, 杭州, 310027;
    2. 四川联合大学轻纺学院, 成都, 610065
  • 收稿日期:1995-06-17 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 解孝林, 男, 32岁, 博士后.
  • 作者简介:解孝林, 男, 32岁, 博士后.

Rheological Properties and In-situ Reinforcement of Liquid Crystalline Copolyesteramide/Poly(ethylene terephthalate) Blends

XIE Xiao-Lin1, WU Da-Cheng2   

  1. 1. State Key Lab of Polym. Reaction Eng., Institute of Polym. Sci. and Eng., Zhejiang University, Hangzhou, 310027;
    2. Light Textile College, Sichuan Union University, Chengdu, 610065
  • Received:1995-06-17 Online:1997-06-24 Published:1997-06-24

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被引次数

12

摘要： 采用Instron3211型毛细管流变仪研究PEA/PET共混物的流变性能,据此探讨共混物熔体的可纺性,讨论了共混物配比与复合纤维力学性能的关系,并用偏光显微镜、扫描电镜研究纤维的结构.结果表明,共混物的表观粘度低于PET的粘度,当PEA为10％时,共混物的表现粘度达到最小值;且PEA含量低于10％时,共混物的可纺性好,复合纤维在流动方向形成明显的取向微纤;当PEA含量为5％时,复合纤维中微纤分布均匀,表现出良好的原位增强效果.

关键词: 液晶共聚酯酰胺, 聚对苯二甲酸乙二酯, 共混物, 流变性能, 原位增强

Abstract: The binary blends of liquid crystalline copolyesteramide(PEA) and poly(ethyleneterephthalate, PET) were studied by Instron3211 type capillary rheometer, The spinnability of the blend melts was inverstigated based on their rheological properties- The relationship between the mechanical properties and structure was discussed. The results show that the viscosity of blends is lower than that of PETand there is a minimum of viscosity at 10%PEAcontent. When the content of PEAis less than 10%, the blends are well-spinnable,and the composite fibers have a well-developed highly oriented fibrillar structure along the fiber axis. As the PEAis 5%, good in-situ reinforcement can be obtained.

Key words: Liquid crystalline copolyesteramide, Poly(ethylene terephthalate), Blends, Rheology, In-sltu reinforcement

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