摘要
尼龙6具有良好的耐磨性,由于自身的吸水性而限制了其应用。本工作采用多单体接枝增容聚合物共混新技术,利用烯烃类聚合物自身的润滑性、以及耐吸水性,通过与尼龙6复合来改善尼龙6的吸水性和摩擦磨损性能。将自制的PP-g-(MAH-co-St),PP-g-(GMA-co-St)和PP-g-(MMA-co-St)三种相容剂添加到PA6/PP共混物中,熔融挤出造粒,注塑成型,制得PA6/PP为80/20的不同相容剂增容的聚合物共混物。研究了不同相容剂对PA6/PP共混合金吸水性和摩擦磨损性能的影响。结果表明:自制的三种相容剂都能够在不同程度上改善PA6/PP共混材料的吸水性。其中,PP-g-(GMA-co-St))对PA6/PP共混体系增容、耐水性及耐磨性改善效果最好。
Nylon6(PA-6) is used as wearable material for its excellent anti-wear capability,but its water-absorption destroys or limits its' wide application.The paper describe the preparation of PA-6/ PP(80/20) blends by using of compatibilizers and it's water-absorption and friction properties.Three types of compatibilizers are PP-g-(MAH-co-St),PP-g-(GMA-co-St) and PP-g-(MMA-co-St),they are prepared by melt-grafting of the multi-monomers onto polypropylene(PP) and the blends are prepared by a twin-screw extruder,test samples are prepared by injection molding.The results shows that the effects of above compatibilizers on the water-absorption and tribological properties of PA6/PP blends are obviously and valuable,PA6/ PP-g-(GMA-co-St)/PP blends exhibits the optimum water-absorption and tribological properties.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2006年第z1期95-97,101,共4页
Journal of Materials Engineering
基金
浙江省重大科技攻关项目(011101619)
浙江省高校中青年学科带头人基金资助
关键词
尼龙6
聚丙烯
共混
吸水性
摩擦磨损
nylon-6
polypropylene
blends
water-absorption
friction and wear
