再生中强型涤纶工业长丝技术的开发  

The Development of Moderately Strong Industrial Fiber Base on Recycled Polyester

作　　者：温国奇 杨志超 赵少锐 乔莎莎 石教学 高亚辉 

机构地区：[1]浙江古纤道新材料股份有限公司,浙江绍兴312000

出　　处：《合成纤维》2017年第11期20-22,40,共4页Synthetic Fiber in China

摘　　要：采用化学醇解法制得的再生聚酯切片,经固相增黏后输送至纺丝系统,从而制备中强型涤纶工业长丝。针对再生基聚酯切片具有的熔点低、特性黏度不稳定、含有机杂质多等特性,对固相增黏工艺、熔体过滤系统、纺丝工艺等过程条件进行了探索和优化,最终制得断裂强度≥6.5 cN/dtex、断裂伸长率19.4%、干热收缩率6.49%的工业用中强型涤纶工业长丝。The moderately strong polyester industrial fibers are produced from recycled chips which were prepared with chemical alcoholysis method and its viscosity was increased by solid state poly-condensation.By optimizing the process of solid state poly-condensation,melt filtration and spinning based on the properties of the recycled chips as low melting point,instable viscosity,amount of organic impurities,etc,the moderately strong polyester industrial fiber with the breaking tenacity 6.5 cN/dtex,elongation at break 19.4%,hot air shrinkage 6.49 % were produced.

关 键 词：再生聚酯 涤纶工业长丝 中强型 

分 类 号：TQ342.2[化学工程—化纤工业]