POE基热熔胶的制备及其对铝黏结性能的影响

Preparation of POE-based Hot Melt Adhesive and It's Effect on Adhesiveness of Aluminum

以乙烯与辛烯共聚的弹性体(POE)为主体树脂,过氧化二异丙苯(DCP)为引发剂,马来酸酐(MAH)为主要单体进行熔融接枝反应制备了POE-g-MAH接枝物;然后将该接枝物、增黏剂及其他助剂等进行熔融共混,制备出黏接强度高的热熔胶。采用FTIR表征了接枝物的结构,并探讨了POE-g-MAH和增黏树脂用量对该热熔胶性能的影响。结果表明:MAH成功接枝到POE上;当POE-g-MAH用量为30%时,热熔胶的黏结强度最大;加入适量的增黏树脂和LLDPE能提高热熔胶的剥离强度。

POE grafted by MAH （POE-g-MAH） was prepared by melting grafting reaction by double-roll mill with POE as matrix resin,DCP as initiator, and MAH as primary monomer. A hot melt adhesive with high peel strength was made by blending POE-g-MAH,tackifing resin and other additives in the double-roll mill. The POE-g-MAH structure was characterized by FTIR,and the mass fraction of POE-g-MAH and tackifing resin and LLDPE on the performances of hot melt adhesive were investigated. It was found that MAH was grafted on POE successfully. When the mass fraction of POE-g-MAH was 30 % ,the peeling structure of hot melt strength reached the highest value, and the strength was obviously enhanced by introduction tackifing resin and LLDPE into systems.