氧化锌纳米晶的制备及其对聚乙烯流变性、拉伸强度的影响

Preparation of ZnO Nanocrystallines and Its Influence to the Fluidity and Tensile Strength for Polyethylene

通过沉淀反应合成了氧化锌前驱体,将该前驱体于700℃煅烧4个小时,得到氧化锌纳米晶。将氧化锌纳米晶与低密度聚乙烯在密炼机里熔融共混,得到氧化锌/低密度聚乙烯(Zn O/LDPE)复合材料。其流变特性及拉伸强度研究表明,随着氧化锌含量的增加,聚乙烯的流动性及拉伸强度都有所提高。

ZnO nanocrystallines were prepared by calcining the precursor obtained by precipitation reaction at 700 ℃ for 4 h. The ZnO/LDPE nanocomposite was obtained by melt-blending process. The result shows that the tensile strength and the fluidity of polymer increased with the adding of ZnO nanoparticles.