盐类对腈纶干湿纺丝原液及成品纤维性能的影响 Ⅱ.氯化锂对聚丙烯腈溶液粘度的影响

EFFECT OF SALT CONCENTRATION ON D0PE VISCOSITY AND THE PROPERTY OF ACRYLIC FIBER (Ⅱ)——EFFECT OF LiCI ON VISCOSITY OF PAN SOLUTION

研究了在不同的聚丙烯腈共聚物浓度、分子量、温度、溶剂等条件下LiCl对聚丙烯腈溶液粘度的影响。结果表明:聚丙烯腈浓度>2%时,LiCl对溶液粘度下降趋势的影响较大;LiCl可使以DMF,DMA,DMSO作溶剂的聚丙烯腈溶液的粘度下降。

Under the different conditions such as concentration, molecular weight, temperatureor solvent, the effects of LiCl on the viscosity of PAN solution are studied. Theexperiment show that when the concentration of the solution is more than 2%,LiCl cause the viscosity of solution to decrease obviously, and when using DMF,DMA or DMSO as solvents, the effects are the same as that mentioned-above.