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利用复合引发剂(过氧化二异丙苯/过氧化苯甲酰)自制马来酸酐接枝聚丙烯(PP-g-MAH)作为相容剂,制备了聚丙烯/聚酰胺6/马来酸酐接枝聚丙烯/纳米有机黏土(PP/PA6/PP-g-MAH/OMMT)复合材料,研究了相容剂和纳米OMMT含量对复合体系力学性能的影响,并利用自制超临界CO2塑料动态发泡实验装置,研究了发泡温度、转子转速、振动力场对复合材料发泡性能的影响。结果表明,在复合材料配比为PP/PA6/PP-g-MAH/OMMT=100/30/15/3时,与纯PP相比,复合材料的熔体强度提高了163%,冲击强度提高了41%,拉伸强度提高了8.4%;在剪切力场上叠加振动力场,有助于改善泡孔形状,均化泡孔分布,提高泡孔密度。
Polypropylene / polyamide 6 / maleic anhydride (PPA) was prepared by self-made maleic anhydride grafted polypropylene (PP-g-MAH) as compatibilizer with a complex initiator (dicumyl peroxide / The effects of compatibilizer and nano-OMMT content on mechanical properties of PP / PA6 / PP-g-MAH / OMMT composites were studied. The effects of self-made supercritical carbon dioxide Bubble experimental device to study the foaming temperature, rotor speed, vibration force field on the foam properties of the composite material. The results showed that the melt strength of the composites increased by 163% and the impact strength increased when the compounding ratio of PP / PA6 / PP-g-MAH / OMMT = 100/30/15 / 41%, tensile strength increased by 8.4%; superposition of shear force field vibration field, help to improve cell shape, cell distribution uniformity and improve cell density.