聚氨酯微粉在环氧复合材料中的应用  

Application of Epoxy/PU Powder Composites Materials

作　　者：杜翠鸣[1] 

机构地区：[1]广东生益科技股份有限公司国家电子电路基材工程技术研究中心,广东东莞523808

出　　处：《广州化学》2015年第2期41-45,共5页Guangzhou Chemistry

摘　　要：将聚氨酯(PU)微粉MP750与环氧树脂(Epon 828)混合、固化,制备得到不同PU添加量的环氧树脂/PU复合材料。研究表明,随着PU微粉的加入,显著提升了环氧树脂复合材料的冲击强度、韧性、剥离强度及粘合力。当PU添加量为15%时,环氧树脂复合材料的剥离强度由原来的1.09N/mm提高到1.8N/mm,层间粘合力从原来的0.71N/mm提高到1.38N/mm,提升率均达60%以上。Epoxy composites with different polyurethane （PU） powder loadings were prepared. It was found that the addition of PU powder not only greatly promoted the impact strength and toughness of the epoxy composites but also enhanced the peel strength and adhesive force of the composites. When PU content was 15%, the peel strength was up to 1.8 N/ram from 1.09 N/mm, and the adhesive force was up to 1.38 N/mm from 0.71 N/ram, both had improved more than 60%.

关 键 词：聚氨酯微粉 环氧树脂 韧性 粘合力 耐热性 

分 类 号：TM215[一般工业技术—材料科学与工程]