中国塑料2017，Vol.31Issue(7)：48-52,5.DOI:10.19491/j.issn.1001-9278.2017.07.008
氧化铝对耐热聚乙烯复合材料性能的影响
Effect of Alumina on Properties of Heat Resistant Polyethylene Composites
摘要
Abstract
In the work,a surface modification was performed toward alumina (Al2O3) powders by silane coupling agent,and then the modified Al2O3 powders were incorporated into polyethylene (PE) as a conductive filler to fabricate heat-resistant p.olyethylene (RTPE) composites through melt blending.The effect of Al2O3 powders on properties of the composites was investigated extensively.The results indicated that thermal conductivity of the composites increased with an increase of Al2O3 content,and it was improved by a factor of 2 compared with pure PE when 50 wt％ of Al2O3 powders with a size of 38 μm was loaded.However,its mechanical properties decreased gradually and its melt fluidity also became worse,resulting in a poor processability.This study also indicated that Y Agari model could well.simulated the thermal conductivity of the composites as a function of Al2O3 content,and the theoretical value was most close to the actual one when Al2O3 content exceeded 30 wt％.关键词
耐热聚乙烯/硅烷偶联剂/氧化铝/热导率/力学性能Key words
heat-resistant polyethylene/silane coupling agent/alumina/thermal conductivity/mechanical property分类
化学化工引用本文复制引用
谷亚新,刘根华,王洪梅,王晴,桂建锋..氧化铝对耐热聚乙烯复合材料性能的影响[J].中国塑料,2017,31(7):48-52,5.基金项目
辽宁省住建厅项目(SZJT2015011) （SZJT2015011）
