介孔材料原位增强酚醛树脂基摩擦材料的制备与摩擦机理研究

项目名称： 介孔材料原位增强酚醛树脂基摩擦材料的制备与摩擦机理研究

项目编号： No.51203029

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 有机高分子材料学科

项目作者： 余传柏

作者单位： 桂林理工大学

项目金额： 25万元

中文摘要： 以解决目前聚合物基摩擦材料制备过程中基体树脂耐热性不足、增强组分分散困难和摩擦性能不稳定等普遍问题为研究出发点。利用介孔材料具有高度有序孔道、高比表面积、较大孔径和孔容的结构特征，采用有效的表面修饰和新颖的分散技术，并通过原位聚合法将酚醛树脂分子链引入介孔材料孔道，制得酚醛树脂基介孔复合材料，以其为基体树脂制备高温摩擦性能优异的摩擦材料。系统研究介孔材料的结构、孔径、表面特性、添加量及其与单体苯酚、甲醛的作用方式对酚醛树脂基介孔复合材料流变性、界面相容性、热性能的影响，进一步研究上述因素对所得酚醛树脂基摩擦材料热性能、摩擦性能的影响，探究介孔材料与酚醛树脂基摩擦材料的作用机制，在此基础上构筑介孔材料结构特性-酚醛树脂基介孔复合材料性能-酚醛树脂基摩擦材料性能之间的关系，为新型聚合物介孔复合材料和聚合物基摩擦材料的设计、制造提供理论依据。也为相关高性能复合材料的研究提供借鉴。

中文关键词： 介孔材料；酚醛树脂；原位增强；摩擦材料；摩擦机理

英文摘要： The starting point of this project to solve the problems in the preparation process of polymeric friction materials such as the lack of heat resistance of matrix resin, dispersion difficulty of reinforcement component, poor compatibility between components, instability in friction properties, etc. The remarkable structural characteristics of mesoporous material such as highly ordered pores, large specific surface area and pore size make it a valuable candidate for the preparation of reinforced phenolic resin composite materials. Adopting effective surface modification and original dispersion process, the proposed method employs in-situ polymerization to introduce phenolic resin molecular chains into channels of mesoporous material for the preparation of mesoporous material reinforced phenolic resin composite materials. The obtained composite materials are then used as the matrix resin to prepare high performance polymeric friction materials. In this project, the potential impact of the structure, pore size, surface characteristics, loading amount of the mesoporous material and its interaction mode with monomer phenol, formaldehyde on the rheological properties, interface compatibility, and thermal properties of phenolic resin will be systematically investigated. The impact of the above factors on the thermal pro

英文关键词： mesoporous material；phenolic resin；in-situ reinforcement；friction material；friction mechanism