摘要
采用熔融共混法制备了聚氯乙烯(PVC)/甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)/埃洛石纳米管(HNTs)三元复合材料,研究了HNTs对PVC/MBS共混体系力学性能、热性能和微观结构的影响。结果表明:HNTs与MBS可协同增韧PVC,使复合材料的强度和刚性得到改善,当HNTs的填充量为3 phr时,PVC/MBS(100/3)共混体系的冲击强度、拉伸强度、弯曲强度和弯曲模量分别提高了57.7%、12.1%、7.6%和45.9%;其冲击断面呈现韧性断裂特征;TEM观察结果发现,HNTs在PVC/MBS共混体系中具有良好的分散状态;热失重分析显示,HNTs对PVC/MBS共混体系热稳定性的提高能起到一定作用。
PVC/MBS/halloysite nanotubes （HNTs） composites were prepared by melt blending method. The effects of HNTs on mechanical properties, thermal performance and microstructure of PVCIMBS blends were investigated. The results show that： PVC toughens synergistically with HNTs and MBS, and the strength and modulus of composites enhance; when the HNTs content is 3 phr, the impact strength, tensile strength, fiexural strength and flexural modulus of PVC/MBS（100/3） increase by 57.7%, 12.1%, 7.6% and 45.9% respectively. TEM examination reveals： the nanotubes disperse evenly in the composites and the impact fracture is typical ductile fracture. TGA test shows that： the thermal stability of PVC/MBS improves with the addition of HNTs.
出处
《塑料科技》
CAS
北大核心
2012年第8期59-63,共5页
Plastics Science and Technology
基金
广东省高性能与功能高分子材料重点实验室开放基金资助(20100007)
