摘要
为探讨离子液体的加入对环氧树脂固化过程及摩擦学性能的影响,制备离子液体(1-丁基-3-甲基咪唑六氟磷酸盐)改性环氧树脂复合材料,并通过红外光谱、核磁共振氢谱、扫描电镜元素分析等考察离子液体在环氧树脂中的存在及分散状态,分析离子液体含量对复合材料动态热力学性能及减摩抗磨性能的影响。结果表明:离子液体与环氧树脂本体及固化剂均未发生化学反应,离子液体在环氧树脂内部均匀分布并与环氧树脂形成了均一的体系;离子液体起到了塑化剂的作用进而改变了环氧树脂理化和摩擦性能;随着离子液体含量的增加,环氧树脂复合材料硬度、弯曲强度和模量呈现先增大而后降低的趋势;离子液体的加入明显降低了环氧树脂的摩擦因数,但抗磨性能略有下降。当离子液体质量分数为10%时,复合材料的减摩抗磨性能较好。
In order to investigate the effect of ionic liquid(IL)on the curing process and tribological properties of epoxy resin,epoxy resins refined with IL(1-butyl-3-methylimidazolium hexafluorophosphate)were prepared.The dispersion of IL in epoxy resins was investigated with the methods of FT-IR,H-NMR and SEM-EDS.The influence of IL content on the dynamic mechanical properties and tribological properties of the composites was discussed.The results demonstrate that there is no chemical reaction occurred between IL and epoxy resin or curing agent.Ionic liquids are evenly distributed in epoxy resin and from a homogeneous system with epoxy resin.Acting as plasticizers,IL has important impact on mechanical and tribological properties of epoxy resin.With the the increase of IL content,the hardness,bending strength and modulus of the composites increase first and then decrease.The friction coefficient of the epoxy resin is significantly reduced by the addition of IL,but the anti-wear performance decreases slightly.Composites with mass fraction of 10%IL display better properties of friction reduction and wear resistance.
作者
武志成
高晓红
王彦明
李萍
李宗起
张晓亮
车红卫
WU Zhicheng;GAO Xiaohong;WANG Yanming;LI Ping;LI Zongqi;ZHANG Xiaoliang;CHE Hongwei(Hebei Modified Plastics Technology Innovation Center,Hebei Engineering University,Handan Hebei 056038,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2022年第3期56-62,共7页
Lubrication Engineering
基金
国家自然科学基金项目(51805140)
河北省自然科学基金项目(E2018402121)
邯郸市科技技术研究与发展计划项目(19422111008-22)
中央支持地方发展项目(206Z1201G)。
关键词
离子液体
环氧树脂
摩擦学性能
复合材料
力学性能
ionic liquid
epoxy resin
tribological properties
composite
mechanical properties
