氯化聚乙烯/聚氯乙烯共混发泡性能的研究

采用模压法进行发泡，研究氯化聚乙烯橡胶（CM）与聚氯乙烯（PVC）的共混比和发泡剂AC用量对发泡体的性能和泡孔结构的影响。结果表明：随着CM用量的增大，CM/PVC发泡材料的发泡密度逐渐减小，泡孔体积和发泡倍率逐渐增大，当CM/PVC共混比为50/50时，发泡材料具有较好的综合性能；随着发泡剂AC用量的增大，发泡材料的发泡密度减小，拉伸强度和撕裂强度逐渐减小。;The microcellular foam of CM/PVC blend was prepared by molding method.The effect of blending ratio and addition level of foaming agent on the properties and microcellular structure of CM/PVC microcellular foam was investigated.The results showed that，as the addition level of CM increased，the density of CM/PVC microcellular foam decreased，and the volume of cell and foaming ratio increased.When the blending ratio of CM/PVC was 50/50，the foam material possessed better properties.As the addition level of foaming agent AC increased，the foam density，tensile strength and tear strength of the foam material decreased