多层复合家电膜中PVC基材的改性研究  

Study on modification of PVC substrate for multi-layer composite home appliance membrane

作　　者：吴昊[1] 曹有名[1] 孙兴好[1] 

机构地区：[1]广东工业大学,广东广州510006

出　　处：《材料研究与应用》2010年第4期631-634,共4页Materials Research and Application

摘　　要：用NBR对家电膜中PVC基材进行共混改性,对PVC基材的力学性能进行了测试并对微观结构进行了观察,结果表明:随着NBR加入量的增加,PVC与CaCO3的界面结合状况明显改善,材料的断裂伸长率大幅增加,NBR加入量为15份时断裂伸长率达到559.91%,较没有加入NBR时增大50%;拉伸强度变化不大,约为24MPa;撕裂强度和拉伸屈服应力略有下降.综合考虑,NBR加入10～15份时,PVC基材的综合性能最佳.The PVC substrate was modificated by blending NBR for multi-layer composite home appliance membrane. The mechanical properties of PVC substrate were measured and microstructure was analyzed. The results showed that the interface bonding between PVC and CaCO3 are greatly improved,and elongation at break of the material was obviously increased with the increasing addition of NBR. When NBR was added in 15 phr（mass fraction）,elongation at break of the material reached at 559.91%,which increased fifty percent compared to PVC with no modification. Tensile strength was almost no change and approximated to 24 MPa.Tearing strength and tensile yield stress declined slightly. When addition of NBR was at 10~15 phr,the best comprehensive properties of PVC substrate was emerged.

关 键 词：聚氯乙烯 丁腈橡胶 断裂伸长率 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] TQ336.4