酚醛树脂耐热改性的研究进展

Research progress in heat-resistant modification of phenolic resin

酚醛树脂具有优异的耐热抗烧蚀性能、良好的力学性能、突出的阻燃性能,在航空航天、摩擦材料、防火阻燃等领域得到了广泛地应用。提高酚醛树脂的耐热性一直是业内研究的热点,本文对近年来酚醛树脂的耐热改性方法进行了综述,包括结构改性、纳米掺杂、捕捉挥发分、可陶瓷化,其中,重点总结了结构改性方法。最后,对该领域所存在的问题进行了概述,并展望了其发展前景。

With excellent heat resistance and ablative property,good mechanical properties and outstanding flame retardant properties,phenolic resin is widely used in aerospace,friction materials,fire retardant and other fields.Improving the heat resistance of phenolic resin has always been a hotspot in the industry.This article reviews the heat resistance modification methods of phenolic resin in recent years,including structural modification,nano-doping,volatile capture,and ceramicization.The structural modification method is highlighted.Finally,the problems existing in this field are summarized and their development prospects are prospected.