Purpose

The purpose of this paper is to investigate the influence of binder effect on tribological behavior of brake friction composite materials: a case study of phenolic resin modified by N-Methylaniline.

Design/methodology/approach

Four different friction materials have been fabricated by varying modified phenolic resin content. The samples were prepared by the conventional powder metallurgy methods following ball milling, mixing, pre-forming, hot pressing and post-curing processes. Thermogravimetric analysis was used to determination of the degradation mechanism of organic components and study of thermal stability of the samples. A friction test was carried out in dry conditions using a vertical tribometer. Analysis of worn surfaces was performed using a scanning electron microscope.

Findings

The experimental results revealed that the sample containing 25 Wt.% phenolic resin has good mechanical and thermal properties with stable friction characteristics.

Originality/value

This paper presents the effect of N-methylaniline modified phenolic resin on friction composites to improve tribological performance by its thermal properties.

中文翻译：

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制动用改性酚醛树脂复合材料的摩擦学行为

目的

本文的目的是研究粘合剂作用对制动摩擦复合材料摩擦学行为的影响——以N-甲基苯胺改性酚醛树脂为例。

设计/方法/方法

通过改变改性酚醛树脂含量制造了四种不同的摩擦材料。样品通过球磨、混合、预成型、热压和后固化工艺后的常规粉末冶金方法制备。热重分析用于确定有机组分的降解机理和研究样品的热稳定性。使用垂直摩擦计在干燥条件下进行摩擦试验。使用扫描电子显微镜对磨损表面进行分析。

发现

实验结果表明，含有 25 Wt.% 酚醛树脂的样品具有良好的机械和热性能，摩擦特性稳定。

原创性/价值

本文介绍了 N-甲基苯胺改性酚醛树脂对摩擦复合材料的影响，通过其热性能改善摩擦学性能。