【摘要】 利用转矩流变仪及适当的实验方法对U—PVC干粉料在不同热—机械作用下的塑化行为进行研究,同时讨论了通过分析转矩流变曲线来表征U—PVC熔体流动性和塑化程度的方法．结果表明,提高剪切力和温度有助于促进U—PVC熔体的流动和塑化．更多还原

【Abstract】 With the use of a torque rheometer and proper procedures,the fusion behavior of U-PVC dry blends during the various themo-mechanical process is studied in this paper.A method,which is based on analy- zing the torque rheologieal curve to characterize the property of flow and degree of gelation of the U-PVC melt,is also discussed.It is shown that the increase in temperature and shear stress favor raising the flow and plastic melt- ing of U-PVC compounds.更多还原