中国塑料 ›› 2015, Vol. 29 ›› Issue (12): 14-17 .DOI: 10.19491/j.issn.1001-9278.2015.12.003

• 材料与性能 • 上一篇    下一篇

TPP和MBS对PC/ABS合金性能的影响

邵佳丽,郭正虹   

  1. 浙江大学宁波理工学院高分子材料与工程研究所
  • 收稿日期:2015-06-26 修回日期:2015-09-22 出版日期:2015-12-26 发布日期:2015-12-26

Influence of TPP and MBS on Properties of PC/ABS Blends

  • Received:2015-06-26 Revised:2015-09-22 Online:2015-12-26 Published:2015-12-26

摘要: 研究了磷系阻燃剂磷酸三苯酯(TPP)、增容剂甲基丙烯酸甲酯丁二烯苯乙烯(MBS)对聚碳酸酯(PC)/丙烯腈丁二烯苯乙烯共聚物(ABS)合金热稳定性、阻燃性能和力学性能的影响。结果表明,当加入16.7 % TPP(质量分数,下同)时,合金的UL 94测试可以达到 V-0级,极限氧指数也有了极大的提高;经MBS增容后,合金阻燃等级降低,极限氧指数较未增容合金提高0.5 %左右;加入TPP能减缓PC/ABS合金的降解,提高合金热稳定性,增加最终残炭率,但MBS的加入在一定程度上降低了合金的热稳定性。

关键词: 无卤阻燃, 聚碳酸酯, 丙烯腈丁二烯苯乙烯共聚物, 甲基丙烯酸甲酯丁二烯苯乙烯, 热稳定性

Abstract: The effect of triphenyl phosphate (TPP) and methyl methacrylatebutadienestyrene (MBS) on the properties of polycarbonate/acrylonitrilebutadienestyrene (PC/ABS) blend was investigated. It showed that when 16.7 wt % TPP was introduced, PC/ABS blend could achieve a V-0 rating in UL 94 tests, limiting oxygen index was also improved remarkably. When MBS was introduced as a compatibilizer, the limiting oxygen index was further increased. TPP retarded the degradation of alloys, improved the thermal stability, and increased the char residue in nitrogen atmosphere, while MBS promoted the degradation of alloys.

Key words: halogen-free flame retardant, polycarbonate, acrylonitrile-butadiene-styrene copolymer, methyl methacrylate-butadiene-styrene, thermal stability