摘要
本文研究了预制体内部结构对石英纤维准三维针刺预制体力学性能的影响,力学性能包括:X-Y向拉伸强度、Z向连接强度、T型剥离强度。研究表明:全网毡针刺结构、单层织物/网毡针刺结构、双层织物/网毡针刺结构预制体X-Y向拉伸强度递增;含织物预制体Z向连接强度和T型剥离强度递减。针刺成型工艺过程中短纤维迁移是Z向性能提高的关键。合理设计针刺预制体内部结构,可优化石英纤维针刺预制体X-Y向和Z向的各项性能。
The effect of the internal structure of the preform on the mechanical properties of the quasi-three-dimensional needle-punched quartz fiber preform was studied.The mechanical properties include X-Y tensile strength,Z-joint strength and T-peeling strength.The results show that:the X-Y tensile strength of the whol felt needle-punched preform,the single layer fabric/felt needle-punched preform and the double-layer fabric/felt needle-punched preform increases progressively;Z-joint strength and T-peeling strength of the preform containing fabric decreases progressively.Migration of the short fiber is the key to enhance the interlayer properties during the needle-punching process.Reasonably designing the internal structure of the needle-punched preform can optimize the X-Y direction and Z-direction properties of the quartz fiber needle-punched preform.
作者
胡健明
缪云良
钱淑云
张诚
李媛琪
HU Jianming;MIAO Yunliang;QIAN Shuyun;ZHANG Cheng;LI Yuanqi(Tianniao High Technology Co.Ltd.,Yixing 214205,Jiangsu,China)
出处
《高科技纤维与应用》
CAS
2021年第6期52-56,共5页
Hi-Tech Fiber and Application
关键词
准三维结构
针刺预制体
石英纤维
quasi three-dimensional structure
needling-punched preform
quartz fiber
