PA6/ABS合金的增韧改性研究

摘要

With ABS-g-MAH, POE-g-MAH and SMA as compatibilizers, the influence of the compatibilizers'species, content of compatibilizers, content of toughening agents and screw speed of extruder on the mechanical properties of PA6/ABS alloy were investigated. The experiment result indicated that ABS-g-MAH was the most effective compatibilizer for PA6/ABS alloy and the notched impact strength of the alloy with 20% ABS-g-MAH was the highest. PA6/ABS alloy with excellent mechanical properties was obtained by using ABS-g-MAH and POE-g-MAH as compatibilizers and toughening agent separately. The notched impact strength of PA6/ABS alloy would be increased when the screw speed of extruder reduced.%采用马来酸酐接枝丙烯腈-丁二烯-苯乙烯共聚物(ABS-g-MAH)、马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)和苯乙烯-马来酸酐共聚物(SMA)为相容剂,研究了相容剂种类、相容剂含量、增韧剂含量及挤出机螺杆转速对尼龙6/丙烯腈-丁二烯-苯乙烯共聚物(PA6/ABS)合金力学性能的影响.研究表明,ABS-g-MAH为PA6/ABS合金的最佳相容剂,且质量分数为20％时合金的缺口冲击强度最高；采用ABS-g-MAH和POE-g-MAH复合增容增韧可得到力学性能优越的PA6/ABS合金；降低挤出机螺杆转速可使PA6/ABS合金的缺口冲击强度提高.