LDPE/T-ZnOw吹塑薄膜性能  

Performance of LDPE/T-ZnOw Films

作　　者：刘哲[1] 温变英[1] 

机构地区：[1]北京工商大学材料科学与工程系,北京100048

出　　处：《塑料》2011年第1期66-68,13,共4页Plastics

基　　金：北京市教委科技发展计划资助项目(KM200710011002)

摘　　要：以LDPE为基体,采用四针状氧化锌晶须(T-ZnOw)作为填料,以聚乙烯接枝马来酸酐(LDPE-g-MAH)作为增容剂,通过熔融共混法分别制备LDPE/T-ZnOw和LDPE/LDPE-g-MAH/T-ZnOw复合材料,用吹塑薄膜方法对其加工成型,并对所制备薄膜的力学性能、雾度、透光率以及材料的流动性能等进行研究。结果表明:单独添加T-ZnOw对LDPE的力学性能提高不明显,使薄膜的透光率下降,雾度升高。加入LDPE-g-MAH使薄膜的力学性能明显提高,但材料的流动性能有所下降,而对薄膜的透光率和雾度影响不大。Tetrapod-shaped zinc oxide whisker （T-ZnOw） as functional filler was used to prepare LDPE/T-ZnOw composites via the melting blending approach. LDPE-g-MAH as a compatibilizer was added in LDPE/T-ZnOw system. Film blowing was employed to prepare the film samples. The effects of T-ZnOw content and the compatibization of LDPE-g-MAH on LDPE films were investigated,respectively. Result indicated that filled T-ZnOw in LDPE could improve the flow properties of LDPE,makes the transmittance of the film declined and the haze raised,but improve the mechanical performance little. LDPE- g-MAH had good eompatibization on LDPE/T-ZnOw, which could obviously enhance the tensile strength and elongation at break of the composite film while the inch flow rate decreased. LDPE-g-MAH showed little effect on the transmittance and haze of the LDPE/T-ZnOw film.

关 键 词：低密度聚乙烯 四针状氧化锌晶须 聚乙烯接枝马来酸酐 吹塑薄膜 力学性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]