摘要
针对目前对于摩擦膜物理特征与材料摩擦性能之间关系的研究较少的情况,选用大尺寸石英颗粒与酚醛树脂基体进行复合,利用销–盘式摩擦试验机对其摩擦磨损性能进行测试。摩擦结束后,采用纳米/微米压痕法表征颗粒表面摩擦膜的力学特性,并通过扫描电子显微镜观察摩擦膜微观形貌。测试结果显示,酚醛树脂粘结剂在21.9%~29.4%时,摩擦系数随树脂基体粘结剂含量增加而减小,这是由于摩擦膜强度逐渐降低,导致粘着摩擦力减小。另外,酚醛树脂基摩擦材料抗热衰退性与摩擦膜厚度成反比,这是由于有机粘结剂在高温下热降解对摩擦膜稳定性不利。陶瓷颗粒具有较高硬度,使得材料具有良好耐磨性。
In response to the situation that studying the relationship between friction film physical properties and friction performance has been rarely reported,bigger quartz particles were designedly employed to reinforce phenolic resin matrix.A pad-ondisc friction machine was used to test the friction performance.After test,the nano/micro indentation method was used to characterize the mechanical features of friction film formed on particles surface,and scanning electron microscope was used to observe the micro-topography.Results show that friction coefficient decreases with the increasing binders in the range of 21.9%–29.4%.It was ascribed to the gradual decrease of friction film strength which reduced the resistance during adhesive friction.The fade resistance is inversely proportional to the friction film thickness.It was attributed to the degradation of organic binders at high temperatures which adversely affected the friction film stability.The materials wear is greatly improved due to the ceramic particles having excellent wear resistance.
作者
孙胃涛
王彬
周文龙
Sun Weitao;Wang Bin;Zhou Wenlong(College of Mechatronics Engineering,Binzhou University,Binzhou 256600,China;Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province),Dalian University of Technology,Dalian 116085,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2021年第9期7-12,共6页
Engineering Plastics Application
基金
国家高技术研究发展计划(863计划)项目(SS2015AA042502)。
关键词
陶瓷增强酚醛树脂基摩擦材料
摩擦膜
力学性能
厚度
摩擦性能
ceramic enhanced phenolic resin matrix friction material
friction film
mechanical property
thickness
friction performance
