HBP／PVC的流变行为Study on Rheologic Behavior of Unsatured Hyperbranched Poly(amide-ester)/Poly(vinyl chloride)Blends
刁建志;杨惠芳;张建民;宋晓红;
摘要(Abstract)：
研究了不饱和超支化聚(酰胺－酯)(HBP)／聚氯乙烯(PVC)的流变行为和玻璃化温度的变化。讨论了剪切应力和剪切速度对HBP／PVC熔体表观粘度的影响。结果表明,在研究的HBP添加量范围内,HBP／PVC的熔体表观粘度大于PVC的。当PVC中加入HBP小于7份时,HBP／PVC的熔体表观粘度逐渐增加;当PVC中加入HBP等于7份时,HBP／PVC的熔体表观粘度出现最大值;当PVC中加入HBP大于7份时,HBP／PVC的熔体表观粘度减小。差示扫描量热仪(DSC)研究结果证明了HBP和PVC相容性较好,且与测得的流变行为结果相一致。从化学反应和形成氢键的机理解释了HBP／PVC的相容性。
关键词(KeyWords)： 不饱和超支化聚(酰胺-酯);聚氯乙烯;共混物;流变行为
基金项目(Foundation): 河北省自然科学基金(B200400413);; 河北省科技攻关(06213507D-2)资助项目。
作者(Authors): 刁建志;杨惠芳;张建民;宋晓红;
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