摘要
利用一种含多环氧官能团的扩链剂(ADR)对SMA(苯乙烯-马来酸酐共聚物)/MA-PE(马来酸酐接枝聚乙烯)热熔胶(HMA)进行了反应增容,并采用熔融共混法制备了MA-PE/SMA/ADR共混材料。研究结果表明:随着ADR掺量的增加,共混物的断裂伸长率和拉伸强度呈先升后降态势,而分散相(SMA)粒子尺寸呈先小后大态势;当w(ADR)=0.2%(相对于共混物总质量而言)时,增容效果相对最好(断裂伸长率为785%,拉伸强度为18.4 MPa,共混改性后PE-HMA的维卡软化点略有提升)。
The reactive compatibilization of SMA （styrene-maleic anhydride copolymer）/MA-PE （maleic anhydride graft polyethylene） hot melt adhesive （HMA） was implemented by a multi epoxy functional chain extender （ADR） as reactive compatibilizer, and the MA-PE/SMA/ADR polyblend was prepared by melt blending. The research results showed that the elongation at break and tensile strength of polyblend had the trend of rise-fall with increasing ADR content, but the particle size of dispersed phase （SMA） had the trend of small- big. The compatibilization effect was relatively best when mass fraction of ADR was 0.2% in polyblend because the elongation at break and tensile strength were 785% and 18.4 MPa respectively, and the Vicat softening temperature of blend modified PE-HMA was slightly increased.
出处
《中国胶粘剂》
CAS
北大核心
2017年第3期20-24,共5页
China Adhesives
关键词
聚乙烯
热熔胶
苯乙烯-马来酸酐共聚物
共混
反应增容
polyethylene （PE）
hot melt adhesive （HMA）
styrene- maleic anhydride copolymer （SMA）
polyblend
reactive compatibilization
