CAJ | 학술논문

综述了近年来摩擦材料用酚醛树脂增韧、增强以及耐热改性的研究进展。分析比较了橡胶、植物油、无机纳米材料、纤维以及聚苯并噁嗪树脂等改性体系对酚醛树脂基摩擦材料性能的影响。纳米粉末橡胶可同时提高酚醛树脂的耐热性和韧性，弥补了传统橡胶改性的不足；植物油可提高酚醛树脂的韧性，但也会使其的耐热性下降；无机纳米粒子的团聚问题影响其改性效果；纤维对酚醛树脂有增强增韧作用外，还可以明显改善其摩擦性能；而天然纤维可再生、价廉，而且强度高，但作为摩擦材料增强体，其耐热性有待改善；新型热固性酚醛树脂固化温度较高，要取代传统酚醛树脂还须进一步深入研究。
종술료근년래마찰재료용분철수지증인、증강이급내열개성적연구진전。분석비교료상효、식물유、무궤납미재료、섬유이급취분병오진수지등개성체계대분철수지기마찰재료성능적영향。납미분말상효가동시제고분철수지적내열성화인성，미보료전통상효개성적불족；식물유가제고분철수지적인성，단야회사기적내열성하강；무궤납미입자적단취문제영향기개성효과；섬유대분철수지유증강증인작용외，환가이명현개선기마찰성능；이천연섬유가재생、개렴，이차강도고，단작위마찰재료증강체，기내열성유대개선；신형열고성분철수지고화온도교고，요취대전통분철수지환수진일보심입연구。
Research progress in recent years on toughening,strengthening and enhancement of heat resistance of phenolic resin (PF)used for friction materials is summarized.A comparative analysis of the different types of modi-fiers including rubber,vegetable oil,inorganic nanoparticles and fibers is presented.Rubber nanopowder can simulta-neously improve the heat resistance and toughness of PF,and thereby offsetting the deficiency of traditional rubber modifier.Vegetable oil can enhance the toughness of PF,but it also reduces the heat resistance of PF.Inorganic nano-particles show an unsatisfactory modification effect because they are easy to aggregate in PF.Fiber can improve the friction performance obviously in addition to enhancing the toughness and strength of PF.Natural fiber is renewable, cheap and high-strength,but its heat resistance remains to be improved as a reinforcement of friction material.To re-place the traditional phenolic resin,the novel thermoset phenolic resin requires further study owning to its high curing temperature.