摘要
基于正交优化试验设计复合材料的思想,综合竹纤维、硫酸钙晶须和镁盐晶须在增强树脂基汽车制动摩阻材料的特性,研制出一种新型环保、质优价廉的制动摩阻材料。试验结果表明：所研制的摩阻材料在100~200℃,摩擦因数均在0.40~0.41间波动,磨损率均低于0.20×10-7 cm3/（N·m）;在250~350℃,摩擦因数均在0.36~0.38间波动,磨损率均低于0.40×10-7cm3/（N·m）,具有优良的摩擦因数及稳定性,且磨损率均处较低水平;采用优化配方后的摩擦因数级别可以达到GF级别,其摩擦学性能远比市场上普通半金属的刹车片好得多,且具有良好的抗热衰退性能及正常的摩擦因数恢复性能。
Eco-friendly and cost-effective brake friction materials have been developed based on orthogonal test design,which makes use of good characteristics of bamboo fiber,calcium sulfate whiskers and magnesium hydroxide sulfate whiskers for resin-based automotive brake friction materials.The results show that the friction coefficient of samples fluctuated in the range of 0.40-0.41 at 100-200 ℃ and 0.36-0.38 at 250-350 ℃ respectively.The wear rate is lower than 0.20＆#215;10-7 cm3/（N＆#183;m）at 100-200℃ and 0.40＆#215;10-7 cm3/（N＆#183;m）at 250-350 ℃.The optimized formulations have desirable tribological performances.The fric-tion coefficients can be classified as GF level,which is much better than that of semi-metallic brake pads in the general market. They also have good heat resistance and normal recovery performance.
出处
《中国科技论文》
CAS
北大核心
2015年第16期1935-1938,共4页
China Sciencepaper
基金
国家自然科学基金资助项目(51075074)
高等学校博士学科点专项科研基金资助项目(20113514110006)
关键词
摩阻材料
竹纤维
硫酸钙晶须
镁盐晶须
摩擦学性能
tribological performance
bamboo fibers
calcium sulfate whiskers
magnesium hydroxide sulfate whiskers
friction materials
