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选定国产改性酚醛树脂作为汽车摩擦材料树脂粘结剂基体，研究了不同树脂含量对材料机械性能和摩擦磨损性能的影响，并通过ＳＥＭ 和ＥＤＡＸ表观分析来确定摩擦材料中树脂粘结剂的最佳含量．研究结果表明：在所选定的６ ％ ～１４％ 树脂含量（质量分数）范围内，材料的冲击强度都能满足使用要求．树脂含量在１４％ 及其以上时，材料高温热衰退严重，导致摩擦因数下降，高温磨损加剧，磨损量上升；在树脂含量过高或过低时，材料将因粘结剂量过少或树脂高温分解导致粘结力下降，使增强纤维存在拔出现象，导致摩擦因数不稳定，材料磨损加剧．综合各项性能，得出：摩擦材料中基体树脂用量不宜太多，其含量以８％ ～１２ ％ 为佳，其中以８％ 为最佳．该结论在桑塔纳轿车无石棉盘式刹车片的研制中得到验证
The domestic modified phenolic resin was selected as the matrix of resin binder for automotive friction materials. The effects of different resin contents on the mechanical properties and friction and wear properties of the materials were studied. SEM and EDAX were used to determine the resin binder The best content. The results show that the impact strength of the material can meet the requirements of the application within the range of 6% ~ 14% resin content (mass fraction). When the resin content is above 14%, the high temperature heat decay seriously, which leads to the decrease of friction coefficient, high temperature abrasion and abrasion increase. When the resin content is too high or too low, Decomposition leads to decreased adhesion, the presence of enhanced fiber pulling phenomenon, leading to unstable friction factor, material wear and tear worse. Based on the performance, it is concluded that the amount of matrix resin used in the friction material should not be too much. The content of the matrix resin is preferably 8% to 12%, of which 8% is the best. This conclusion has been verified in the development of Santana car asbestos-free disc brake pads