中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (3): 115-117.

• 研究论文 • 上一篇    

α－甲基苯乙烯对HIPS/SBS共混物流变行为及力学性能的影响

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:1993-03-24 修回日期:1993-08-17 出版日期:1994-06-10 发布日期:1994-06-10

Enects of α-methyl Styrene on Rheological and Mechanical Properties of HIPS/SBS Blends

Song Xiangyu, Zhang Xuhua, Yang Decai   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1993-03-24 Revised:1993-08-17 Published:1994-06-10 Online:1994-06-10

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摘要： 用锥板式流变仪研究了α-MS对HIPS/SBS共混物流动行为的影响,结果表明:不同α-MS用量的共混物|gτω|gγω和|gηN|gγω曲线相似。均随γω增加τω增大、ηN下降。流动指数,n均小于1为非牛顿假塑性流体。加入少量(约2.5%)α-MS使共混物熔融指数提高3倍,其总体力学性能变化不大。

关键词: 抗冲击聚苯乙烯, 苯乙烯－丁二烯嵌段共聚物, α－甲基苯乙烯, 共混物, 流变性能, 力学性能

Abstract: The effects of a-methyl styrene on the rheological and mechanical properties of HIPS/SBS blends have been examined,It is found that addition of a-methyl styrene in amount of 2.5 weight percent increased the melt index of the blend by 3 times as compared with samples without additive,and their mechanical property changed only slightly.

Key words: high impact polystyrene, styrene-butadiene block copolynier, a-methyl styrene, blend, rheological property, mechanical property

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