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将NPCC与PBAT熔融共混制备复合材料,并使用超临界CO_2间歇发泡法制备发泡材料。并对复合材料的结晶行为、流变性能、力学性能和发泡行为进行研究。结果表明:活性NPCC会提高PBAT的结晶温度和结晶度;PBAT复合体系的拉伸强度和断裂伸长率也在特定NPCC含量下出现上升趋势;同时,随着活性NPCC含量的增加,PBAT的熔体弹性和可发性线性提高。PBAT/NPCC复合材料泡沫的泡孔密度和发泡倍率也随着NPCC含量的增加而出现上升趋势,PBAT/NPCC泡沫的泡孔形态显著改善。
The NPCC and PBAT were melt-blended to prepare the composite material, and the foaming material was prepared by the supercritical CO 2 intermittent foaming method. The crystallization behavior, rheological properties, mechanical properties and foaming behavior of the composites were studied. The results showed that: the activity of NPCC increased the crystallization temperature and crystallinity of PBAT; the tensile strength and elongation at break of PBAT composite also increased at specific NPCC content; at the same time, with the increase of active NPCC, the melting of PBAT Body elasticity and hair can increase linearly. The cell density and expansion ratio of PBAT / NPCC foam also increased with the increase of NPCC content, and the cell morphology of PBAT / NPCC foam significantly improved.