纳米氢氧化铝填充高密度聚乙烯体系的微观形态与性能研究  

Investigation on Micromorphology and Properties of HDPE Filled with Nano Aluminum Trihydroxide

作　　者：段玉丰[1] 付朝霞[1] 肖继君[1] 马劲松[1] 马佳佳[1] 

机构地区：[1]河北科技大学材料学院,河北石家庄050018

出　　处：《化学建材》2006年第4期13-15,共3页Chemical Materials for Construction

摘　　要：研究了机械混熔法得到的纳米氢氧化铝填充高密度聚乙烯体系的微观形态、流变性能及力学、阻燃性能,并与当前普遍应用的微米尺度氢氧化铝填充体系进行比较。微观形态分析显示纳米氢氧化铝含量较低时(低于15%),氢氧化铝主要以纳米个体粒子或数个粒子的聚结形态存在;当纳米氢氧化铝含量较高时(高于15%)时,氢氧化铝容易形成大尺度的团聚,此时体系中氢氧化铝是纳米粒子、聚结粒子以及团聚粒子共存的混合体。因此,作者认为采用常规机械混熔法得到纳米氢氧化铝填充高密度聚乙烯并不是严格意义上的纳米复合材料。Micromorphology, theological property, mechinical property and flame retardance of HDPE filled with nano aluminum trihydroxide（ATH） obtained by way of mechanical mixed melting were studied and this filler was compared with micron dimension aluminum hydroxide currently in common use. The micromorphology analysis indicated that when content of nano ATH was less than 15% aluminum hydroxide existed mainly as individual nano particle or in gathered form of several particles whereas when content of nano ATH was more than 15% the aluminum hydroxide was apt to form large- sized conglomerations. At this moment the aluminum hydroxide in HDPE was a mixture of nano-particle, gathered particles and conglomerated particles co-existed. Therefore, the author argued that the HDPE filled with ATH obtained by way of conventional mechanical mixed melting, strictly soeaking, was by no means comoounded nano materials.

关 键 词：纳米氢氧化铝 高密度聚乙烯 微观形态 流变性能 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]