| 引用本文: | 尹昌平,肖加余,李建伟,等.石英纤维增强苯并噁嗪树脂复合材料研究.[J].国防科技大学学报,2008,30(5):25-28,33.[点击复制] |
| YIN Changping,XIAO Jiayu,LI Jianwei,et al.A Study on Quartz Fiber Reinforced Benzoxazine Resin Composites[J].Journal of National University of Defense Technology,2008,30(5):25-28,33[点击复制] |
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| 石英纤维增强苯并噁嗪树脂复合材料研究 |
| 尹昌平, 肖加余, 李建伟, 刘钧, 曾竟成, 江大志 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 对苯并噁嗪树脂应用于RTM工艺制备石英纤维增强复合材料进行了研究。系统考察了该树脂的工艺性能及力学性能，制备并测试了石英/苯并噁嗪复合材料的力学性能及耐烧蚀性能，并将相关性能与钡酚醛与石英/钡酚醛进行了比较。结果表明，在85℃～145℃温度区间内苯并噁嗪树脂粘度保持在800mPa·s以下，树脂具有较宽的低粘度温度平台和较长的低粘度保持时间。力学性能及耐烧蚀性能研究表明，石英/苯并噁嗪复合材料的层间剪切强达到了61.5MPa，拉伸强度和弯曲强度显著优于石英/钡酚醛复合材料，质量烧蚀率和线烧蚀率分别为0.0510g·s-1和0.032mm·s-1。石英/苯并噁嗪复合材料是一种可采用RTM工艺制备的耐烧蚀材料。 |
| 关键词: 树脂传递模塑 石英纤维 苯并噁嗪树脂 钡酚醛 |
| DOI： |
| 投稿日期：2008-03-17 |
| 基金项目:国家部委基金资助项目 |
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| A Study on Quartz Fiber Reinforced Benzoxazine Resin Composites |
| YIN Changping, XIAO Jiayu, LI Jianwei, LIU Jun, ZENG Jingcheng, JIANG Dazhi |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Benzoxazine resin is used to fabricate quartz fiber reinforced composites by RTM process in the paper. The processing properties and mechanical performances of benzoxazine resin are studied systematically, and quartz/benzoxazine resin composites are manufactured by RTM to test their mechanical performances and ablation properties. Some properties are compared with those of barium-phenolic resin and its quartz fiber composites. The results show that benzoxazine resin maintains low-viscosity less than 800mPa.s in the range from 85℃ to 145℃, and has a wide low-viscosity temperature window and a long low-viscosity keeping time. The interlaminar shear strength(ILSS) of quartz/benzoxazine resin composites reaches 61.5MPa, the tensile strength and the flexural strength are more excellent than those of quartz/barium-phenolic resin composites. The mass ablation rate and line ablation rate of quartz/benzoxazine composites reach 0.0510g(s-1and 0.032mm(s-1 , respectively. Quartz/benzoxazine resin composites can be used as ablative materials and fabricated by RTM process. |
| Keywords: resin transfer molding quartz fiber benzoxazine resin barium phenolic resin |
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