| AlB2对高硅氧纤维/可瓷化酚醛树脂复合材料及其裂解产物力学性能的影响 |
| |
| 引用本文： | 徐博,丁杰,王兵,杨威,黄志雄,王雁冰.AlB2对高硅氧纤维/可瓷化酚醛树脂复合材料及其裂解产物力学性能的影响[J].复合材料学报,2021,38(1):129-136. |
| |
| 作者姓名： | 徐博 丁杰 王兵 杨威 黄志雄 王雁冰 |
| |
| 作者单位： | 武汉理工大学 材料科学与工程学院，武汉 430070 |
| |
| 基金项目： | 中央高校基本科研业务费专项资金(WUT:2019Ⅲ066JL,2020Ⅲ001XZ)。 |
| |
| 摘 要： | 以AlB2和SiC颗粒填充酚醛树脂作为基体，高硅氧纤维作为增强体，制备了高硅氧纤维/可瓷化酚醛树脂复合材料。研究了不同添加量的AlB2颗粒对高硅氧纤维/可瓷化酚醛树脂复合材料常温和1200℃裂解产物性能的影响，并分析了AlB2颗粒对其裂解产物的增强机制。结果表明:随着AlB2颗粒的添加，高硅氧纤维/可瓷化酚醛树脂复合材料常温下的弯曲强度逐渐减小，但其1200℃裂解产物的弯曲强度先增大后减小。当AlB2颗粒与酚醛树脂的质量比为12%时，裂解产物的弯曲强度提高最为显著，相比未添加AlB2颗粒的复合材料，其裂解产物的弯曲强度提高了16.4%。AlB2颗粒在1200℃有氧环境中反应生成由B2O3 、Al2O3和Al20B4O36组成的共熔体，填充了树脂基体裂解产生的孔隙，明显减少复合材料裂解产物的结构缺陷，阻止内部材料进一步氧化，提高了裂解产物的力学性能。
|
| 关 键 词： | AlB2 SiC 酚醛树脂 可瓷化 裂解产物 力学性能 复合材料 |
| 收稿时间： | 2020-03-11 |
Effects of AlB2on mechanical properties of high silica fiber/ceramicizable phenolic resin composites and their pyrolysis products |
| |
| XU Bo,DING Jie,WANG Bing,YANG Wei,HUANG Zhixiong,WANG Yanbing.Effects of AlB2on mechanical properties of high silica fiber/ceramicizable phenolic resin composites and their pyrolysis products[J].Acta Materiae Compositae Sinica,2021,38(1):129-136. |
| |
| Authors: | XU Bo DING Jie WANG Bing YANG Wei HUANG Zhixiong WANG Yanbing |
| |
| Affiliation: | School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China |
| |
| Abstract: | The high silica fiber/ceramicizable phenolic resin composites were prepared by using AlB2and SiC particles filled phenolic resin as matrix and high silica fiber as reinforcement.The effects of different amounts of AlB2particles on the performance of high silica fiber/ceramicizable phenolic resin composites were studied at room temperature and after 1200℃pyrolysis,respectively.The enhancement mechanism of AlB2particles on pyrolysis products of the high silica fiber/ceramicizable phenolic resin composites was analyzed.The results reveal that as the amount of AlB2particles increasing,the flexural strength of the high silica fiber/ceramicizable phenolic resin composites gradually decreases at room temperature,while the flexural strength of the 1200℃pyrolytic composites displays a tendency to increase first and then decrease at high content of AlB2.When the mass ratio of AlB2particles to phenolic resin is 12%,the flexural strength of the pyrolysis products is improved most significantly,16.4%higher than that of the composites without AlB2particles.AlB2particles react in an aerobic environment at1200℃to form a co-melt composed of B2O3,Al2O3and Al20B4O36,which fills the pores of the pyrolysis products of the phenolic resin,significantly reducing structural defects of the pyrolysis products,preventing further oxidation of the internal materials.Therefore,the mechanical properties of the pyrolysis products are improved. |
| |
| Keywords: | AlB2 SiC phenolic resin ceramicizable pyrolysis product mechanical properties composite |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
