纳米碳酸钙增强聚丙烯纤维的研究

编号：SLHY00048

篇名：纳米碳酸钙增强聚丙烯纤维的研究

作者：郑楠; 高绪珊; 童俨;

关键词：聚丙烯纤维; 碳酸钙; 纳米; 分散剂; 力学性能; 结构;

机构： 北京服装学院; 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。结果表明:当分散剂与纳米碳酸钙的质量比为1∶3,纳米碳酸钙质量分数为0．3%时,改性PP纤维的断裂强度和初始模量最大,分别为7．97,90．36 cN/dtex．纳米碳酸钙在改性PP纤维中分散均匀,且粒径为40～80 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于2%时,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∶3 and the content of nano-calcium carbonate was 0.3% by mass fraction.The nano-calcium car- bonate with particle size of 40-80μm...