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采用含有-NH2和-COO-双功能团的甘氨酸作为改性剂制备出甘氨酸复合球文石碳酸钙(CaCO3),并利用XRD及FTIR对其结构进行了表征。熔融共混制备了聚丙烯/甘氨酸改性碳酸钙(PP/CaCO3-Gly)和PP/CaCO3两种复合材料,并对其拉伸性能及流动性能进行了研究。结果表明,PP/CaCO3-Gly复合材料在流动性能、拉伸强度、弯曲强度等性能方面均高于PP/CaCO3复合材料。
The glycine-loaded aragonite calcium carbonate (CaCO3) was prepared by using glycine containing bifunctional groups -NH2 and -COO- as modifier. Its structure was characterized by XRD and FTIR. The PP / CaCO3-Gly and PP / CaCO3 composites were prepared by melt blending, and their tensile properties and flowability were studied. The results show that PP / CaCO3-Gly composites are superior to PP / CaCO3 composites in terms of flowability, tensile strength and flexural strength.