中国塑料 ›› 2011, Vol. 25 ›› Issue (03): 34-38 .DOI: 10.19491/j.issn.1001-9278.2011.03.008

• 材料与性能 • 上一篇    下一篇

CPVC热稳定性能研究

柯伟席 王澜 张萌 杜文硕 沈传熙   

  1. 北京工商大学 北京工商大学
  • 收稿日期:2010-11-01 修回日期:1900-01-01 出版日期:2011-03-26 发布日期:2011-03-26

Study on the Thermal Stability of CPVC

  

  • Received:2010-11-01 Revised:1900-01-01 Online:2011-03-26 Published:2011-03-26

摘要: 采用转矩流变仪、冲击试验机、力学试验机、维卡热变形仪研究了主热稳定剂、辅助热稳定剂、内润滑剂和外润滑剂对氯化聚氯乙烯(CPVC)体系的热稳定性能和流变性能以及最终制品的力学性能的影响。结果表明,主热稳定剂复合铅盐稳定剂为3. 0份,辅助热稳定剂Pb-St和Ba-St分别为0. 7~1. 1份、内润滑剂H-St为0. 5份、外润滑剂石蜡为0. 6份时,体系的加工性能和热稳定性能最好,最终制品的冲击强度、拉伸强度、维卡软化点分别为20. 19 kJ/m2、67. 36 MPa、122.3℃。

关键词: 氯化聚氯乙烯, 热稳定剂, 润滑剂, 流变性能, 加工性能

Abstract: The effect of primary heat stabilizer,auxiliary heat stabilizer, inner lubricant,and external lubricant on the processability,thermostability and mechanical properties of chlorinated Poly(vinyl chloride)(CPVC)was studied. It showed that the processability and the thermostability were best when the primary stabilizer was 3.0 phr,auxiliary heat stabilizers Pb-St and Ba-St were 0.7~1.1 phr each, inner lubricant H-St was 0.5 phr, external lubricant petrolin was 0. 6 phr. The impact strength,tensile strength,and Vicat softening point were 20. 19 kJ/m2, 67. 36 MPa,122. 3℃,respectively.

Key words: chlorinated poly(vinyl chloride), heat stabilizer, lubricant, rheology, processability