中国塑料2018，Vol.32Issue(1)：114-119,6.DOI:10.19491/j.issn.1001-9278.2018.01.019
聚乙烯蜡和硬脂酸钙对聚氯乙烯的润滑作用:树脂润滑特性与机理
Lubrication Characteristics and Mechanism of Polyethylene Waw and Calcium Stearate for Poly(vinyl chloride)
吴茂英 1胡朔 1汪立君1
作者信息
- 1. 广东工业大学轻工化工学院,广州510006
- 折叠
摘要
Abstract
Lubrication characteristics of polyethylene wax and calcium stearate (CaSt2) for poly (vinyl chloride) (PVC) were investigated by measuring plasticizing time with a torque rheometer.The results indicated that polyethylene wax acted an effective primary resin external lubricant for PVC,and CaSt2 acted as an effective secondary resin external lubricant.There was a significant synergistic effect when these two lubricants were combined.The external lubricating performance of polyethylene wax and its combination with CaSt2 was enhanced with an increase of total amount of two lubricants,in which the fraction of polyethylene wax was fixed as 1 phr.The lubrication mechanisms can be deduced as follows.when the lubricant is used alone,polyethylene wax can spread over and wet the PVC particles to prevent them from contacting directly and friction with each other,but CaSt2 cannot wet PVC particles due to the formation of agglomerations and reverse micelles.On the other hand,the combination of these two lubricants can make CaSt2 dissolved slightly in polyethylene wax and then absorbed on the interface between PVC particles and polyethylene wax.As a result,the direct contact and friction between the PVC particles can be prevented effectively.关键词
聚氯乙烯/润滑剂/聚乙烯蜡/硬脂酸钙/树脂润滑作用/机理Key words
poly(vinyl chloride)/lubricant/polyethylene wax/calcium steatate/resin lubrication/mechanism分类
化学化工引用本文复制引用
吴茂英,胡朔,汪立君..聚乙烯蜡和硬脂酸钙对聚氯乙烯的润滑作用:树脂润滑特性与机理[J].中国塑料,2018,32(1):114-119,6.
