一种RTM 用苯并噁嗪树脂的工艺性及其复合材料性能

冉起超, 高念, 李培源, 朱蓉琪, 盛兆碧, 顾宜

冉起超, 高念, 李培源, 等. 一种RTM 用苯并噁嗪树脂的工艺性及其复合材料性能[J]. 复合材料学报, 2011, 28(1): 15-20.
引用本文: 冉起超, 高念, 李培源, 等. 一种RTM 用苯并噁嗪树脂的工艺性及其复合材料性能[J]. 复合材料学报, 2011, 28(1): 15-20.
RAN Qichao, GAO Nian, LI Peiyuan, et al. Processing property of a RTM benzoxazine resin and properties of composites[J]. Acta Materiae Compositae Sinica, 2011, 28(1): 15-20.
Citation: RAN Qichao, GAO Nian, LI Peiyuan, et al. Processing property of a RTM benzoxazine resin and properties of composites[J]. Acta Materiae Compositae Sinica, 2011, 28(1): 15-20.

一种RTM 用苯并噁嗪树脂的工艺性及其复合材料性能

基金项目: 国家自然科学基金(50873062)
详细信息
  • 中图分类号: TB332

Processing property of a RTM benzoxazine resin and properties of composites

  • 摘要: 制备了一种可用于树脂传递模塑( RTM) 工艺的高性能苯并噁嗪共混树脂体系( BA21) 。研究了BA21 的注射工艺性, 确定了其固化程序, 并考察了采用RTM 工艺制备的BA21 基复合材料的基本力学性能。升温及恒温黏度测试结果表明, BA21 树脂体系能够用于RTM 工艺。依据修正的双阿累尼乌斯方程建立了与实验数据较为吻合的化学流变模型, 利用该模型可以选择合适的注射温度。通过不同温度下的恒温DSC 测试及修正的Kamal 动力学模型计算得到BA21 树脂体系的固化反应级数, 并确定后固化温度为200 ℃。采用RTM 工艺制得的玻璃纤维/ BA21 复合材料表现出优异的力学性能, 弯曲强度达600 MPa , 弯曲模量达30 GPa , 冲击强度达210 kJ/ m2
    Abstract: A new high performance benzoxazine resin (BA21) for RTM technique was prepared. The processing property and cure schedule of BA21 resin, and mechanical properties of BA21 matrix composites using RTM were studied. The viscosity tests show that BA21 can meet to the require ments of RTM process. A chemorheology model based on the modified dual-Arrhenius equation was proposed . The model that agrees well with the experimental data can provide a theoretic support for t he mold-filling stage in the RTM process. The overall reaction orders of BA21 were estimated from the isothermal DSC tests based on a modified Kamal kinetics model, and 200 ℃ was chosen as the postcure temperature of the composites. The composites with high fiber contents were prepared by the RTM technique. The fl exure strength and modulus of these composites are up to 600 MPa and 30 GPa, respectively, and the impact strength is up to 200 kJ/ m2.
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出版历程
  • 收稿日期:  2009-12-17
  • 修回日期:  2010-03-18
  • 刊出日期:  2011-02-14

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