摘要
以环氧树脂(EP)和短切碳纤维(SCF)为改性剂对聚氨酯(PU)进行改性,制备了PU/EP/SCF复合材料,研究了复合材料的物理机械性能和摩擦学性能。结果表明,当SCF质量分数为7.5%时,PU/EP/SCF复合材料具有最佳的物理机械性能和摩擦学性能,拉伸强度和扯断伸长率分别为16.5 MPa、157.5%,干摩擦条件下摩擦系数和磨损率分别为0.48和1.44×10^(-4)mm^3/(N·m)。
Polyurethane （PU） was modified by epoxy resin （EP） and short carbon fiber （SCF）, PU/EP/SCF compo- sites were prepared, and the mechanical and tribological properties of PU/EP/SCF composites were studied. The resuits showed that when mass fraction of SCF was 7.5% , the PU/EP/SCF composites exhibited the best mechanical and tribological properties, and the tensile strength, elongation at break, friction coefficient and wear rate of PU/EP/SCF com- posites under dry sliding was 16.5 MPa, 157.5% , 0. 48 and 1.44 × 10 -4 ram3/（ N · m） respectively.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
2017年第3期207-211,共5页
China Synthetic Rubber Industry
基金
国家自然科学基金青年基金资助项目(51605109)
广西自然科学基金青年基金资助项目(2016 GXNSFBA380004)
博士科研启动基金资助项目(002401003501)
