JOURNAL OF TEXTILE RESEARCH ›› 2007, Vol. 28 ›› Issue (7): 58-61.

• 染整与化学品 • Previous Articles     Next Articles

Dyeability and rheological property of PP modified with hyperbranched polymer

HU Ming;XU Dezeng;GUO Jing   

  1. Dalian Institute of Light Industry;Dalian;Liaoning 116034;China
  • Received:2006-10-13 Revised:2007-01-11 Online:2007-07-15 Published:2007-07-15

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Abstract: 将超支化聚合物应用于聚丙烯纤维(PP)的共混改性,共混比例为2%~10%。实验结果表明:超支化聚合物的加入改善了PP的染色性,当超支化聚合物的质量分数为8%时,PP的上染率达到70%。共混体系为非牛顿假塑性流体,其表观黏度随剪切速率的增大而减小;随着超支化聚合物含量增大,共混物非牛顿流动指数上升,剪切速率上升,流变性能改善;共混物黏流活化能可达47.83 kJ/mol,黏温依赖性随着超支化聚合物含量的增加而增大。超支化聚合物含量为2%~4%时,拉伸强度上升约10%。

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