摘要
系统地研究了氯化聚丙烯甲苯溶液流变性能。用旋转粘度计测定了不同浓度甲苯溶液的粘度。剪切应力与剪切速率之间的关系表明,w≤10%的氯化聚丙烯甲苯溶液为牛顿流体,这一结果与文献数据相符。根据粘度随温度的变化关系,计算了不同浓度氯化聚丙烯甲苯溶液的流动活化能,浓度越高,流动活化能越大。考察了超声波作用下,氯化聚丙烯甲苯溶液的粘度变化并测定了相应条件的分子量:超声波作用下,由于氯化聚丙烯分子发生了降解,导致氯化聚丙烯甲苯溶液的粘度下降。
Rheological behavior of CPP toluene solution is studied.Viscosities of chlorinated polypropylene toluene solutions are determined by a rotary viscometer.The relation between shear stress and shear rate indicates that chlorinated polypropylene toluene solution,whose concentration is below or equal to 10%（mass fraction）,shows Newtonian behaviour.This result can be validated by literature data.Flow activation energy is calculated in terms of viscosity dependence on temperature.The higher the concentration,the bigger the flow activation energy.Viscosities of chlorinated polypropylene toluene solutions and relevant molecular weights of chlorinated polypropylene are determined under ultrasonic irradiation.The viscosity of chlorinated polypropylene toluene solution decreass under ultrasonic irradiation,due to degradation of chlorinated polypropylene during ultrasonic treatment.
出处
《桂林理工大学学报》
CAS
北大核心
2010年第3期404-407,共4页
Journal of Guilin University of Technology
基金
河南省教育厅科研项目(2008A530002)
关键词
氯化聚丙烯
粘度
流变性
流动活化能
超声辐照
chlorinated polypropylene
viscosity
rheology
flow activation energy
ultrasonic irradiation
