纳米颗粒改性聚乙烯与钢铁的附着机理  

Adhesion Mechanisms between Steel and Polyethylene Modified by Nanoparticles

作　　者：翟兰兰[1] 凌国平[1] 郦剑[1] 

机构地区：[1]浙江大学材化学院材料系,浙江杭州310027

出　　处：《材料科学与工程学报》2007年第5期676-679,670,共5页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(50371077)

摘　　要：通过拉拔法测定了纳米改性低密度聚乙烯和钢铁之间的附着强度,并结合聚乙烯的表面能参数测定、XPS的能谱和聚乙烯涂敷过程中的体积变化,对纳米颗粒提高聚乙烯和钢铁附着力的机理进行了研究。表面能参数的结果表明,随纳米颗粒的加入,聚乙烯的极性有提高的趋势。XPS分析和体积变化测量发现,聚乙烯极性变化是由于纳米颗粒作用下,聚乙烯产生的极性基团C-O和C=O所致,它和聚乙烯涂覆过程中的体积变化共同作用,使聚乙烯和钢铁附着力提高。The adhesion mechanisms between steel and low density polyethylene modified by nanoparticles were investigated by pull-off adhesion strength,surface energy parameter measurement,XPS analysis and volume variation resulted from coating LDPE on steel.The surface energy parameter results indicate that the polarity of polyethylene tends to be increased.The XPS analysis and the volume variation calculated show that the produced polar groups C-O and C=O as a result of the nanoparticles addition enhance the polarity.Moreover,both the polar groups and volume variation result in the adhesion improvement between steel and polyethylene.

关 键 词：低密度聚乙烯 纳米颗粒 钢铁 附着力 机理 

分 类 号：TQ050.4[化学工程]