| 引用本文: | 代礼葵,孙耀宁,王国建.紫外辐照对玻纤增强树脂基复合材料冲蚀性能的影响[J].材料科学与工艺,2019,27(5):52-58.DOI:10.11951/j.issn.1005-0299.20180162. |
| DAI Likui,SUN Yaoning,WANG Guojian.Effects of UV irradiation on the erosion performance of glass fiber reinforced resin-based composites[J].Materials Science and Technology,2019,27(5):52-58.DOI:10.11951/j.issn.1005-0299.20180162. |
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| 摘要: |
| 为了探讨紫外老化对玻璃纤维增强环氧乙烯基酯树脂基复合材料冲蚀性能的影响，对玻璃纤维增强环氧乙烯基酯树脂基复合材料进行人工紫外加速老化试验，并对不同老化时间下试样进行冲蚀；采用扫描电镜、红外光谱仪及差式扫描仪研究了老化前后材料表面形貌、化学结构以及玻璃化转变温度的变化，并分析了不同老化时间对试样巴氏硬度、质量损失率及冲蚀失重率的影响.结果表明：随着老化时间的增加试样表面发黄现象逐渐加剧，并出现树脂基体的开裂、剥离及纤维暴露；紫外老化7 d后试样的抗冲蚀性能提升了5.3%、巴氏硬度上升3%，但老化56 d后试样抗冲蚀性能下降了15.1%、巴氏硬度下降14.6%；老化56 d后试样玻璃化转变温度上升9.3 ℃.紫外老化是一个由表及里的过程，首先造成表层树脂性能的下降；紫外老化引起树脂基体的分解、玻璃纤维与树脂基体界面的脱黏、树脂基体的脆化，进而导致材料抗冲蚀性能的下降. |
| 关键词: 紫外老化 冲蚀 复合材料 玻璃纤维 界面 |
| DOI：10.11951/j.issn.1005-0299.20180162 |
| 分类号:TB332 |
| 文献标识码:A |
| 基金项目:国家自然科学基金资助项目(51465055). |
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| Effects of UV irradiation on the erosion performance of glass fiber reinforced resin-based composites |
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DAI Likui , SUN Yaoning , WANG Guojian
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(School of Mechanical Engineering,Xinjiang University,Wulumuqi 830047,China) [HJ1.35mm]
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| Abstract: |
| To investigate the effect of UV aging on the erosion properties of glass fiber reinforced epoxy vinyl ester resin matrix composites, the UV accelerated aging test of glass fiber reinforced epoxy vinyl ester resin composites was carried out, and the erosion test was also performed at the different aging time. Scanning electron microscopy, infrared spectroscopy and differential scanning were used to study the changes of morphology, chemical structure and glass transition temperature before and after aging. The effect of different aging time on the pasteurization hardness, mass loss rate and erosion loss rate are analyzed. The results showed that as the aging time increases, the yellow color on the surface of the sample gradually deepens, and cracking, peeling, and fiber exposure of the resin matrix occur, After 7 days of UV aging, the erosion resistance of the sample was increased by 5.3% and the hardness of the paste was increased by 3%. However, after 56 days of aging, the erosion resistance of the sample was decreased by 15.1% and the hardness of the paste was decreased by 14.6%. After 56 d, the glass transition temperature of the sample was increased by 9.3 ℃. UV aging is a process from the surface to the inside, which first results in the degradation of the surface resin properties. The decomposition of resin matrix、debonding of glass fiber and resin matrix interface and embrittlement of resin matrix also led to the decrease of erosion performance after UV aging. |
| Key words: UV aging erosion performance composite material glass fiber interface |
