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摘要本论文是通过在环氧树脂中添加粒径为80μm的Al2O3和ZrO2，Al2O3和SiO2颗粒来研究不同硬质颗粒与不同添加比例对复合涂层性能的影响，并与添加单一的Al2O3的颗粒涂层进行对比。实验中检测了涂层的粘结强度、冲蚀磨损、耐冲击等性能。结果表明：耐磨涂层的硬度，粘结强度和抗冲击性能，随着添加硬质颗粒比例的增加而增大。同时添加Al2O3和ZrO2的试样相比较同时添加Al2O3和SiO2的试样，有更好的抗冲击性能和更好的耐冲蚀磨损性能，当同时添加Al2O3和ZrO2 粒子的比例为40%且Al2O3:ZrO2=1:2时，耐磨涂层的硬度为932MPa，粘结强度为10.74MPa，冲蚀磨损失量为15.76mm3/min，耐冲击性能强，综合性能好。7336
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关键词： 复合耐磨涂层；胶粘；粘结强度；冲蚀磨损；冲击
Abstract
In this paper the wear resistance of composite coatings with aluminum oxide and silicon oxide, aluminum oxide and zirconium, of 80μm, respectively, in the epoxy resin bases were studied. The performance of composite coatings such as the cohesion strengths, erosive wear and impact resistance were tested. Experimental results showed that the Greater proportion of hard particles, the better hardness, bonding strength and the impact resistance of the coating, comparing with the alumina and silica coating, the alumina and zirconia coating has better impact resistance and better erosive wear performance. When 40% alumina and zirconia particles were added and alumina: zirconia = 1:2, the wear-resistant of the coating was 932MPa, bond strength was 10.74MPa, erosion wear loss was 15.76mm3/min, it has strong impact resistance and good comprehensive performance.
Keywords: Composite wear-resisting coating; Adhesive; Bond strength; Erosion wear; Impact resistance
目录
摘要： I
Abstract: I
1. 绪论 1
1.1 复合耐磨涂层的研究现状 1
1.2复合耐磨涂层简介 2
1.2.1复合耐磨涂层的定义 2
1.2.2复合耐磨涂层的组成 2
1.3复合耐磨涂层的作用机理 4
1.3.1 复合耐磨涂层的作用机理 4
1.3.2 复合耐磨涂层的形成原理 5
1.3.3 颗粒增强机理 5
1.3.4 涂层附着力的作用机理 6
1.4复合耐磨涂层的失效 6
1.4.1 磨损失效 6
1.4.2 粘接失效 6
1.5本课题的选题思路 6
2. 实验过程 8
2.1 原材料及仪器 8
2.2 实验内容及关键步骤 8
2.2.1基板的表面处理 9
2.2.2计算环氧树脂以及硬质颗粒的用量 10
2.2.3过筛硬质颗粒及配制涂料 10
2.2.4复合涂层的涂敷 11
2.2.5涂层的固化 12
2.3性能测试方法 12
2.3.1 硬质颗粒在胶粘剂中的分散情况 12
2.3.2 冲蚀磨损性能 13
2.3.3 粘结强度 13
2.3.4 耐冲击性能 14
2.3.5 硬度测试 14
3. 结果讨论 16
3. 1耐磨颗粒在涂层中的分散 16
3. 2硬度测试 18
3. 3涂层的耐冲击性能 19
3. 4涂层的粘结强度 21
3. 5涂层的耐冲蚀磨损性能 22
4. 结论 29
致谢 30
参考文献 31
1. 绪论