中国塑料 ›› 2010, Vol. 24 ›› Issue (12): 25-29 .DOI: 10.19491/j.issn.1001-9278.2010.12.004

• 材料与性能 • 上一篇    下一篇

CPVC增韧改性的研究

柯伟席 王澜 韩微微 张萌 沈传熙   

  1. 北京工商大学 北京工商大学
  • 收稿日期:2010-07-26 修回日期:1900-01-01 出版日期:2010-12-26 发布日期:2010-12-26

Research on the Toughening Modification of CPVC

Weixi KE Lan WANG Weiwei HAN Meng ZHANG Chuanxi SHEN   

  • Received:2010-07-26 Revised:1900-01-01 Online:2010-12-26 Published:2010-12-26
  • Contact: Lan WANG

摘要: 研究了苯乙烯-丁二烯-丙烯腈共聚物(ABS)、甲基丙烯酸甲酯-丁二烯-丙烯腈共聚物(MBS)、氯化聚乙烯(CPE)、聚氯乙烯和邻苯二甲酸二辛酯增韧氯化聚氯乙烯(CPVC)的冲击性能。结果表明,MBS、CPE和ABS能有效提高CPVC的冲击强度,其中MBS对CPVC体系增韧效果最为明显,添加10份(质量份数)MBS的CPVC的冲击强度较未添加增韧剂的提高了48.8%。增韧剂的加入使体系的拉伸强度、维卡软化点均有不同程度的下降,其中MBS维卡软化点降低得最少,为118.7 ℃,较未添加增韧剂的CPVC体系只降低了1.9 ℃。增韧剂的加入对CPVC体系的加工性能有影响。添加MBS后加工性能较好,优于其他增韧剂。当加入10份MBS的时候,材料的综合性能较好。

关键词: 氯化聚氯乙烯, 弹性体, 增韧, 加工性能, 增韧, 冲击性能

Abstract: The toughening effect of acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-butadiene-methyl methacrylate copolymer (MBS), chlorinated polyethylene (CPE), poly(vinyl chloride), and dioctyl phthalate for chlorinated poly(vinyl chloride)(CPVC)was studied. While MBS, CPE, and ABS could improve the impact strength, MBS provided the best toughening modification. When the contents of MBS was 10 phr, the impact strength was increased by 48.8%. However, the addition of these modifiers caused reductions in tensile strength and Vicat softening point. The smallest reduction was observed in MBS based system, only 1.9 ℃ lower than that of neat CPVC(118.7 ℃). These tougheners also improved the processability of CPVC and which MBS behaved best. When MBS dosage was 10 phr, an optimal comprehensive properties of the modified system was observed.

Key words: chlorinated poly(vinyl chloride), elastomer, toughening, processability, toughening effect, impact property