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.
出处
《中国塑料》
CAS
CSCD
北大核心
2009年第12期31-34,共4页
China Plastics
