MBS/纳米BaSO_4协同增韧聚酰胺6复合材料的研究  

Study on the Synergistic Toughening Effect of MBS and Nano-BaSO_4 in the PA6/MBS/Nano-BaSO4 Composite

作　　者：郭婷[1] 丁筠[1] 王三昭[1] 吴立峰[1] 乔辉[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《中国塑料》2009年第12期31-34,共4页China Plastics

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,熔体的流动性与添加了增容剂的预增韧体系相比有所提高。The synergistic toughening of PA6 with MBS and nano-BaSO4 was studied. The impact strength, tensile strength, melt flow rate, 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 achieve an impact strength of 85.9 kJ/m^2, which was 48 % higher than that of PA6/MBS pre-toughened system. The melt flow rate was also improved compared to the pre-toughened system containing the compatibilizer, and the tensile strength changed unconspicuously.

关 键 词：聚酰胺6 甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物 纳米硫酸钡 增韧 复合材料 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]