摘要
以过氧化二异丙苯为引发剂 ,以马来酸酐为单体 ,在单螺杆挤出机上进行了聚乙烯熔融接枝 .用正交试验确定了引发剂、单体、阻交联剂对熔融指数的影响次序和合适的用量 ,用红外光谱和测试接枝率的方法证明了马来酸酐确已接枝到聚乙烯的大分子链上 .不同密度聚乙烯接枝马来酸酐后 ,其与铝箔的粘接性研究表明 :LLDPE g MAH具有最高的剥离强度 ,且当它与增流树脂共混后 ,即可作为铝塑复合管专用热熔胶 .
By using dicumyl peroxide as the initiator and maleic anhydride as the monor, polyethylene was melt to graft maleic anhydride in single screw extruder. The influence order of melt index and adaptable quantity for initiator, monor and crosslinking inhibitor was decided. It was testified by infrared spectrum and graft ratio measurement that maleic anhydride has been grafted to polyethylene large molecular chain. By studying the adhesiveness of aluminum with different density polyethylene grafted maleic anhydride, we conclude that LLDPE g MAH has the higest peel strength. LLDPE g MAH blending with the flow promotor resin can be used as the hot melt adhesive in aluminum plastics compound pipe.
出处
《建筑材料学报》
EI
CAS
CSCD
2000年第3期246-251,共6页
Journal of Building Materials
关键词
铝塑复合管
聚乙烯
热熔胶
aluminum plastics compound pipe
polyethylene
maleic anhydride
graft
hot melt adhesive
