PP/纳米ZnO的紫外光老化性能  

Ultraviolet light aging resistance of PP/nano-ZnO composite

作　　者：卢秀萍[1] 邵金璐[1] 

机构地区：[1]天津科技大学材料科学与化工学院,天津300457

出　　处：《合成树脂及塑料》2007年第4期71-74,共4页China Synthetic Resin and Plastics

基　　金：天津市自然科学基金(033602311)

摘　　要：将纳米ZnO(nano-ZnO)用钛酸酯偶联剂表面处理后制备聚丙烯(PP)/nano-ZnO复合材料。研究了nano-ZnO含量对复合材料耐老化性能的影响。nano-ZnO可明显改善PP树脂的紫外光老化性能。当w(nano-ZnO)为3%时,复合材料老化前后的性能差和纯PP树脂老化前后的性能差分别为:拉伸强度1.9 MPa和3.1 MPa、断裂伸长率为29.0%和66.7%、缺口冲击强度为1.1 kJ/m^2和2.9 kJ/m^2、无缺口冲击强度为1.5 kJ/m^2和3.2 kJ/m^2、球压痕硬度为4.8 MPa和5.8 MPa、维卡软化温度为3.3℃和7.0℃。Polypropylene/nano-zinc oxide （PP/nano-ZnO） composites were p ject to surface modification with titanate coupling agent. The effect of repared with nano-ZnO that was subnano-ZnO content on aging resistance of the composites was studied. The results show that nano-ZnO can remarkably improve ultraviolet light aging resistance of the composites. When adding 3% nano-ZnO, the difference in physical and mechanical properties of the composite and pure PP before and after aging under UV light is 1.9 MPa and 3.1 MPa for tensile strength, 29.0% and 66.7% for elongation at break, 1.1 kJ/m^2 and 2.9 kJ/m^2 for notched impact strength, 0.6 kJ/m^2 and 3.29 kJ/m^2 for non-notched impact strength, 4.8 MPa and 5.8 MPa for ball hardness, 3.3 ℃ and 7.0 ℃ for Vicat softening temperature, respectively.

关 键 词：聚丙烯 纳米氧化锌 复合材料 紫外光老化 

分 类 号：TB332[一般工业技术—材料科学与工程]