氟橡胶摩擦性能的研究进展

Research Progress on Friction Properties of Fluoro Rubber

氟橡胶具有优异的耐化学腐蚀和耐高温性能,在航空航天、机械、石油、汽车和军工等领域广泛应用,减小氟橡胶摩擦因数和磨耗量不但能够延长其密封制品使用寿命,还能够提高生产效率。氟橡胶分子链柔顺性、玻璃化温度、相对分子质量及其分布等均影响氟橡胶摩擦性能;采用橡塑共混、橡胶并用、填充减磨填料和对氟橡胶基材进行表面化学处理等方法可以改善氟橡胶摩擦性能;深入研究氟橡胶减磨和降摩作用机理、研究氟橡胶与对偶间摩擦物理和化学效应以及两种效应之间的关系、发展绿色环保减磨填料和自润滑减磨填料等是今后氟橡胶摩擦性能的研究重点和方向。

Fluoro rubber has excellent chemical resistance and high temperature resistance.It is widely used in aerospace,machinery,petroleum,automotive and military industries.Reducing the friction factor and abrasion of fluoro rubber can not only extend the service life of its sealing products,but also improve production efficiency.The molecular chain flexibility,glass transition temperature,relative molecular mass and its distribution of fluoro rubber all affect the friction performance.The friction performance of fluoro rubber can be improved by adopting methods such as rubber/plastic blending,rubber blending,filling with wear-resistant filler and surface chemical treatment of fluoro rubber substrate.In-depth study of reducing wear and friction mechanism of fluoro rubber,research on the physical and chemical effects of friction between fluororubber and its counterpart and the relationship between the two effects,and the development of green and environmentally friendly anti-friction fillers and self-lubricating anti-friction fillers are the focus and direction of future research on the friction performance of fluoro rubber.