表面改性对LDPE/nano-ATH复合材料性能的影响  

Effect of Surface Modification on Property of LDPE/Nano-ATH Composites

作　　者：崔文广[1] 高岩磊[1] 时伟[2] 郧海丽[1] 

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]石家庄学院科研处,河北石家庄050035

出　　处：《塑料科技》2012年第5期57-60,共4页Plastics Science and Technology

基　　金：河北省教育厅科学研究项目(Z2011204)

摘　　要：采用熔融共混法制备了低密度聚乙烯(LDPE)/纳米氢氧化铝(nano-ATH)复合材料,研究了nano-ATH表面改性前后对复合材料力学性能和阻燃性能的影响;利用扫描电镜(SEM)分析了nano-ATH表面改性前后在LDPE基体中的分散性。结果表明:表面改性nano-ATH使复合材料具有较高的拉伸强度和断裂伸长率;nano-ATH用量较少时,其表面改性与否对复合材料的阻燃性能基本没有影响;加入量较大时,表面改性nano-ATH使复合材料具有较好的阻燃性能,其在LDPE基体中的分散性也得到改善。LDPE/nano-ATH composite was prepared by means of melt blending method.The effect of the nano-ATH before and after modification on mechanical and flame retardant properties of the LDPE/nano-ATH composite was studied.The dispersion of the nano-ATH before and after modification in LDPE matrix was analyzed by SEM.The results show that： the tensile strength and elongation at break of the LDPE/nano-ATH composite with modified nano-ATH become better than those of the LDPE/nano-ATH composite with unmodified nano-ATH.The flame retardant property of the LDPE/nano-ATH composite with the modified or unmodified nano-ATH and the dispersion of the modified or unmodified nano-ATH in LDPE matrix exhibited slight difference at low loads;at high loads,the flame retardant property of the LDPE/nano-ATH composite with the modified nano-ATH becomes better than that of the LDPE/nano-ATH composite with the unmodified nano-ATH;the dispersion of the modified nano-ATH in LDPE matrix also becomes better than that of the unmodified nano-ATH in LDPE matrix.

关 键 词：低密度聚乙烯 纳米氢氧化铝 表面改性 复合材料 性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]