中国塑料 ›› 2009, Vol. 23 ›› Issue (12): 31-34 .DOI: 10.19491/j.issn.1001-9278.2009.12.007

• 材料与性能 • 上一篇    下一篇

MBS/纳米BaSO4协同增韧聚酰胺6复合材料的研究

郭婷;丁筠;王三昭;吴立峰;乔辉   

  1. 北京化工大学
  • 收稿日期:2009-07-14 修回日期:1900-01-01 出版日期:2009-12-26 发布日期:2009-12-26

Study on Synergistically Toughening Effect of Nano-BaSO4/MBS Composites

christina.guo   

  • Received:2009-07-14 Revised:1900-01-01 Online:2009-12-26 Published:2009-12-26
  • Contact: christina.guo

摘要: 依据弹性体与刚性粒子增韧理论,以聚酰胺6(PA6)为基体,用甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)及纳米BaSO4对体系进行协同增韧,研究了复合材料的冲击强度、拉伸强度、熔体流动速率及瞬时能量吸收曲线,并结合微观形态探讨了增韧机理。结果表明,用MBS/纳米BaSO4对PA6进行协同增韧,可以制得冲击强度高达85.9 kJ/m2的超韧PA复合材料;与 PA6/MBS预增韧体系相比,PA6/MBS/纳米BaSO4复合材料的冲击强度提高了48 %,且拉伸强度基本保持不变,熔体的流动性有所提高。

关键词: 纳米BaSO4, 协同增韧, 相容性, 尼龙6

Abstract: The synergistic toughening of PA6 with MBS and nano-BaSO4 were studied. The impact strength, tensile strength, melt flow index, and instantaneous energy absorption curves of the PA6/MBS/BaSO4 composites were determined and the micro-structure of the impact fractured surface was studied. The polyamide composites toughened with MBS and nano-BaSO4 may achieved an impact strength of 85.9 kJ/m2, which was 48 % higher than that of PA6/MBS pre-toughened system. The melt flow rate was also improved, and the tensile strength changed unconspicuously.

Key words: Nano-BaSO4, Synergistic Toughening, Compatibility, PA6

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