应用化学 ›› 1994, Vol. 0 ›› Issue (1): 111-113.

• 研究论文 • 上一篇    下一篇

γ-射线辐照对HIPS/SBS共混物结构与性能的影响

宋襄玉, 张秀华, 杨德才   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1992-11-10 修回日期:1993-06-19 出版日期:1994-02-10 发布日期:1994-02-10

Effccts of γ-Irradiation on Mechanical Properties of HIPS /SBS BIends

Song Xiangyu, Zhang Xiuhua, Yang Decai   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciemces, Changchun 130022
  • Received:1992-11-10 Revised:1993-06-19 Published:1994-02-10 Online:1994-02-10

摘要: 采用60Coγ-射线对HIPS/SBS共混物以不同剂量和时间进行辐照,适当条件下,可改善共混物的性能,其中的丁二烯橡胶相可产生不同程度的交联,使抗张强度、弹性模量增加,热变形温度及硬度明显提高。并观察了交联后形态结构的变化。

关键词: 聚苯乙烯, 苯乙烯-丁二烯嵌段共聚物, 共混物, γ-时线辐照, 力学性能

Abstract: The effects of yray irradiation on the mechanical properties of HIPS/SBS blends have been investigated. The resuIts indicate that suitable irradiation resuIts in an increase of hardness and thermal deformation temperature of the blends with tensile strength and impact strength being remained ui1changed. When the dose of irradiation was too large the tensile strength and impact strength decreased markedly,the hardness and thermal deformation temperature increased too.

Key words: polystyrene, styrene-butadiene block copolymer, blend, γ-ray irradiation, mechan-ical property