摘要
采用真空反压液相浸渗工艺 ,以碳纤维M4 0J增强 5A0 6为研究对象 ,研究了预制件制备工艺中热去胶过程和超声混杂过程对纤维束丝的物理损伤和化学损伤的程度 ,纤维束丝分散技术对槽形构件成型及性能的影响。结果表明 ,热去胶温度和超声分散距离对纤维强度保留率均有显著影响 ,SiC颗粒可以起分散作用 ,有利于减少浸渗阻力。与未经颗粒分散的复合材料相比 ,经过 5wt%SiC +3wt%淀粉溶液的分散后 ,复合材料的体积分数由 6 3.2 %降低到 5 1.6 % ,而复合材料的拉伸强度提高了约 5 9MPa ,达到 6 5 1MPa ,密度为 2 .15 g/cm3 。
The manufacturing process of continuous M40J/5A06 composites by vacuum pressure infiltration method is introduced and studied. The degree of the chemical and physical damnification to carbon fiber during the preform process is investigated as well as the effects of particle scattering on the composite properties. The research results show that SiC particle can decrease resistance during infiltration process and is beneficial to the infiltration. Adding 5wt% SiC and 3wt% amylum , the volume fraction of composites decreases to 51.6% from 63.2% if not using scattering particle and tensile strength increases by 59MPa to 626MPa, higher than that when not using scattering particle. The prepared composites with a well-proportioned microstructure has a low density.
出处
《玻璃钢／复合材料》
CAS
CSCD
2004年第6期22-26,共5页
Fiber Reinforced Plastics/Composites
基金
新材料领域资助项目 (863 70 2 )
关键词
真空液相浸渗
槽形复合材料
预制件
颗粒分散
力学性能
vacuum pressure infiltration
slotware
preform
particle scattering
mechanical properties
