ABS-g-MAH对PA6/ABS合金性能的影响研究

Effect of ABS-g-MAH on Properties of PA6/ABS Alloy

以马来酸酐(MAH)接枝丙烯腈-丁二烯-苯乙烯共聚物(ABS)作为相容剂,研究了相容剂ABS-g-MAH对PA6/ABS合金凝聚态结构和力学性能的影响。结果表明,当ABS-g-MAH质量分数为20%时,合金的冲击强度比未加相容剂的提高了41%。动态力学性能(DMA)和偏光显微镜也很好地说明了加入相容剂的合金,其相容性得到了很好的改善。ABS和ABS-g-MAH的加入明显改善了PA6的吸水性能,当ABS-g-MAH质量分数为10%时,合金吸水率较纯PA6降低了50%。

In this study, the PA6/ABS alloy was prepared using the aerylonitrile-butadiene-styrene terpolymer （ABS） grafted by the maleic anhydride （ABS-g-MAH） as the compatibilizer. The effect of compatibilizer ABS-g-MAH on the PA6/ABS alloy＇s condensed structure and mechanical properties were investigated. Results showed that the impact strength of the alloy with 20% compatibilizer was 41% higher than that of alloy without the compatibilizer. It was proved by the dynamic mechanical analysis and the polarization microscope that the alloy＇s compatibility was improved considerably by the addition of ABS and ABS-g-MAH. The water absorption performance was improved by the addition of ABS and ABS-g-MAH. When the content of ABS-g-MAH was 10 wt%, the alloy＇s water absorbency decreased by 50% , compared with the neat PA6.