编号：SLHY00048
篇名� 纳米碳酸钙增强聚丙烯纤维的研�
作者： 郑楠; 高绪珉� 童俨;
关键词：聚丙烯纤绳� 碳酸钘� 纳米; 分散剁� 力学性能; 结构;
机构：北京服装学陡� 北京服装学院 北京;
摘要� 将分散剂、纳米碳酸钙和聚丙烯(PP)切片按一定比例混合纺丝制得改性PP纤维。并研究了改性PP纤维的结构与性能。结果表昍�当分散剂与纳米碳酸钙的质量比�?�?,纳米碳酸钙质量分数为0�?%�?改性PP纤维的断裂强度和初始模量最�?分别�?�?7,90�?6 cN/dtex．纳米碳酸钙在改性PP纤维中分散均匀,且粒径为40�?0 nm。与PP纤维相比,改性PP纤维的取向度变化不大,结晶度有所提高,但当纳米碳酸钙质量分数大于等�?%�?其结晶度下降明显� The modified PP fiber was prepared by blending a dispersant,nano-calcium carbonate and polypropylene(PP) chips at a specific ratio.The structure and properties of modified PP fiber were studied.The results showed that the breaking strength and initial modulus were maximized as 7.79 and 90.36 cN/dtex respectively when the mass ratio of the dispersant to nano-calcium carbonate was 1�? and the content of nano-calcium carbonate was 0.3% by mass fraction.The nano-calcium car- bonate with particle size of 40-80μm...