新型高摩合成材料组分对摩擦性能的影响规律研究

发布时间：2018-09-01 15:24

【摘要】：采用正交试验设计的方法制备得到不同配比的新型高摩合成材料,通过极差分析方法探索了组分对合成材料摩擦系数、弹性模量的影响规律。在MMS-2A摩擦磨损试验机上测试了材料的摩擦系数,用OLS4100型-3D激光共聚焦显微镜观察了摩擦试样的磨损形貌,探索分析了组分影响合成材料摩擦磨损性能的内在机理,并用TG/DTA7300型号热分析仪和SANS试验机对合成材料的热性能及力学性能进行测试,获得组分对各种性能的影响规律。结果表明:高性能填料与丁腈橡胶对材料的摩擦系数影响最大,纤维影响最小;纤维对弹性模量的影响最明显,影响最小的是高性能填料。建立了模型摩擦系数与弹性模量的回归模型,其R2值分别为0.94与0.955。合成材料开始分解的温度在300℃左右,材料的耐热性能随着橡胶含量的增加而降低。通过对表面形貌进行分析,发现不同的组分对合成材料磨损机制的影响规律。
[Abstract]:A new type of high friction synthetic material with different ratio was prepared by orthogonal experiment design. The effect of components on friction coefficient and elastic modulus of the composite was studied by range analysis. The friction coefficient of the material was measured on the MMS-2A friction and wear tester, and the friction was observed by OLS 4100-3D laser confocal microscope. The wear morphology of the samples was studied. The internal mechanism of the compositions affecting the friction and wear properties of the composites was explored and analyzed. The thermal and mechanical properties of the composites were tested by TG/DTA7300 thermal analyzer and SANS tester. The effects of the compositions on the properties of the composites were obtained. The influence of fiber on elastic modulus is the most obvious, and the influence of fiber on elastic modulus is the smallest. A regression model of friction coefficient and elastic modulus is established. The R2 values are 0.94 and 0.955, respectively. The decomposition temperature of synthetic material is about 300, and the heat resistance of the material increases with the rubber content. By analyzing the surface morphology, the influence of different components on the wear mechanism of the composites was found.
【作者单位】：贵州大学材料与冶金学院;贵州省材料结构与强度重点实验室;高性能金属结构材料与制造技术国家地方联合工程实验室;
【基金】：贵州省工业攻关项目(黔科合GY字(2013)3037)
【分类号】：TB332

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