先通过甘油对淀粉进行塑化制备热塑性淀粉(TPS),然后以马来酸酐接枝聚丙烯(MA-g-PP)作为增容剂将聚丙烯(PP)与 TPS 共混,制成 TPS/PP 复合材料。通过电子拉力机、热重法、转矩流变仪、挤出毛细管流变仪以及熔融指数仪,研究了不同含量的MA-g-PP 对 TPS/PP 性能的影响。结果表明,MA-g-PP 的添加可有效提高材料的力学和加工性能,综合生产成本和增容效果考虑,当 MA-g-PP 的添加量为 PP/TPS 总量的4％(质量分数)时,材料具有较高的力学性能和较佳的加工性能。
In this paper,starch plasticized with glycerol to produce thermoplastic starch (TPS),then polypro-pylene (PP)blend with TPS enhanced,and maleic anhydride grafted polypropylene (MA-g-PP)as a compatibi-lizer,to produce TPS/PP composite materials.Through electronic tensile testing machine,thermogravimetric analyzer,torque rheometer,capillary rheometer and melt indexer to study the effect of different content of MA-g-PP on the properties of TPS/PP composite materials.The results show that,the addition of MA-g-PP can ef-fectively improve the mechanical properties and processing properties of TPS/PP materials,and considering the production cost and the compatibilization effect,TPS/PP material with higher mechanical properties and better processing performance when the addition content of MA-g-PP was 4wt% of the materials.
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