功能化纳米SiO2改性环氧树脂复合材料及其摩擦磨损行为与机制
TB332; 运用共价官能化技术,实现纳米SiO2表面接枝3氨丙基三乙氧基硅烷(APTES)改性(T-SiO2),并制备功能化纳米SiO2改性环氧树脂复合材料(T-SiO2/EP),分析改性后纳米SiO2表面官能团和化学元素的变化规律,测试T-SiO2/EP的主要力学性能,研究其在干摩擦条件下的摩擦磨损行为与机制.结果 表明:功能化纳米SiO2的引入,有效改善了环氧树脂的力学与摩擦学性能,且当功能化纳米SiO2含量为2％时(质量分数,下同),环氧复合材料(2％T-SiO2/EP)的显微硬度和断裂韧度均达到最大值(70.2HD和1.02MPa·m1/2),并具有优异的减摩耐磨性能.干摩擦条件下,...
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| Published in | 材料工程 Vol. 47; no. 11; pp. 92 - 99 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
陆军工程大学野战工程学院,南京,210007%陆军南京军代局,南京,210024
20.11.2019
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4381 |
| DOI | 10.11868/j.issn.1001-4381.2018.001293 |
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| Abstract | TB332; 运用共价官能化技术,实现纳米SiO2表面接枝3氨丙基三乙氧基硅烷(APTES)改性(T-SiO2),并制备功能化纳米SiO2改性环氧树脂复合材料(T-SiO2/EP),分析改性后纳米SiO2表面官能团和化学元素的变化规律,测试T-SiO2/EP的主要力学性能,研究其在干摩擦条件下的摩擦磨损行为与机制.结果 表明:功能化纳米SiO2的引入,有效改善了环氧树脂的力学与摩擦学性能,且当功能化纳米SiO2含量为2％时(质量分数,下同),环氧复合材料(2％T-SiO2/EP)的显微硬度和断裂韧度均达到最大值(70.2HD和1.02MPa·m1/2),并具有优异的减摩耐磨性能.干摩擦条件下,2％ T-SiO2/EP复合材料的摩擦因数和磨损失重分别为0.49和1.7mg,较纯环氧树脂分别降低了31.9％和34.6％,较未改性纳米SiO2增强的环氧树脂复合材料(U-SiO2/EP)分别降低了14％和10.5％,并对相应的磨损机理进行了分析. |
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| AbstractList | TB332; 运用共价官能化技术,实现纳米SiO2表面接枝3氨丙基三乙氧基硅烷(APTES)改性(T-SiO2),并制备功能化纳米SiO2改性环氧树脂复合材料(T-SiO2/EP),分析改性后纳米SiO2表面官能团和化学元素的变化规律,测试T-SiO2/EP的主要力学性能,研究其在干摩擦条件下的摩擦磨损行为与机制.结果 表明:功能化纳米SiO2的引入,有效改善了环氧树脂的力学与摩擦学性能,且当功能化纳米SiO2含量为2％时(质量分数,下同),环氧复合材料(2％T-SiO2/EP)的显微硬度和断裂韧度均达到最大值(70.2HD和1.02MPa·m1/2),并具有优异的减摩耐磨性能.干摩擦条件下,2％ T-SiO2/EP复合材料的摩擦因数和磨损失重分别为0.49和1.7mg,较纯环氧树脂分别降低了31.9％和34.6％,较未改性纳米SiO2增强的环氧树脂复合材料(U-SiO2/EP)分别降低了14％和10.5％,并对相应的磨损机理进行了分析. |
| Author | 高立 谭业发 田晋 齐泽昊 蔡滨 |
| AuthorAffiliation | 陆军工程大学野战工程学院,南京,210007%陆军南京军代局,南京,210024 |
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| Author_FL | GAO Li QI Ze-hao CAI Bin TAN Ye-fa TIAN Jin |
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| DocumentTitle_FL | Tribological behavior and wear mechanism of modified nano-SiO2 reinforced epoxy composites |
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| Keywords | 纳米SiO2 摩擦磨损 环氧树脂(EP) 表面改性 复合材料 |
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| Title | 功能化纳米SiO2改性环氧树脂复合材料及其摩擦磨损行为与机制 |
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