摘要
RTM工艺可实现扩张段构件近净尺寸成型,纤维体积含量可达53. 1%～59. 9%。本文对法向增强预制体/酚醛扩张段RTM制备技术涉及的树脂基体、法向增强预制体、注射设备与模具进行了讨论。采用RTM工艺制备以酚醛树脂为基体,以2. 5 D编织预制体或针刺预制体为增强材料的扩张段材料并分析其性能,研究结果表明,扩张段构件的层间剪切强度高达59. 2 MPa以上,抗烧蚀冲刷性能显著提高。
RTM technology can realize the near-net size forming of expansion section,and volume content of fiber can reach 53. 1% to 59. 9%. In this paper,the resin matrix,normal reinforced preform,inject equipment and mold involved in the preparation of normal reinforced preform/phenolic RTM expansion section were discussed. Phenolic resin as matrix,2. 5 D braided preform or needle punched preform as reinforcement to prepare composites through RTM process,and the related performance were analyzed. The results show that the interlaminar shear strength of expansion section is as high as 59. 2 MPa,and the ablative erosion performance is improved significantly.
作者
赵文斌
田谋锋
姚亚琳
王静
ZHAO Wen-bin;TIAN Mou-feng;YAO Ya-lin;WANG Jing(Xi'an Aerospace Composites Research Institute,Xi'an 710025,China;Beijing Composite Material Co.,Ltd.,Beijing 102101,China)
出处
《玻璃钢／复合材料》
CAS
北大核心
2019年第3期65-69,共5页
Fiber Reinforced Plastics/Composites
关键词
RTM
扩张段
制备技术
RTM
expansion section
preparation technology
