碳纤维/酚醛树脂体系Z-pin加捻拉挤工艺及其性能

张向阳; 李勇; 褚奇奕; 李吻

doi:10.13224/j.cnki.jasp.2015.07.015

碳纤维/酚醛树脂体系Z-pin加捻拉挤工艺及其性能

doi: 10.13224/j.cnki.jasp.2015.07.015

南京航空航天大学材料科学与技术学院, 南京 210016

详细信息

作者简介:
张向阳(1987-),女,河北唐山人,博士生,主要从事复合材料三维增强技术研究.

中图分类号: V258;TB332
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出版历程
- 收稿日期: 2014-01-20
- 刊出日期: 2015-07-28

Pultrusion and properties of the twisted carbon fiber/phenolic resin Z-pin

College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 为了解决碳纤维/酚醛树脂体系Z-pin拉挤制品中的孔隙缺陷,实现耐烧蚀复合材料三维增强体的制备,在分析孔隙的形成与酚醛树脂的固化过程基础上,利用纤维加捻提高酚醛树脂固化压力进而改善Z-pin中的孔隙缺陷.研究表明:一定范围内,随着纤维捻度的增加,孔隙缺陷的尺寸与数量明显减少,Z-pin中树脂质量分数及可植入深度逐渐降低,而Z-pin抗压性能先提高后降低;碳纤维捻度为80捻/m时,Z-pin制品质量较好,树脂质量分数约为32%,可满足后续超声植入,常温下最大植入深度可达10mm.
- 碳纤维 /
- 酚醛树脂 /
- Z-pin拉挤 /
- 加捻 /
- 力学性能
Abstract: The main goal is to solve the pore defect of the pultruded carbon fiber/phenolic resin Z-pin and obtain the three-dimensional reinforcement of ablation resistant composite. On basis of the analysis of the pore formation and phenolic resin curing process, the twisted yarn was utilized to elevate the resin's inner pressure to eliminate the pore defects in Z-pin. The results showed that, along with the increase of the twist number within the specific range, the size and amount of pores declined obviously, and also the phenolic resin mass fraction and maximum insertion depth decreased, while the compressive property arose firstly and declined afterwards. When the twist number was 80twist/m, Z-pin of good quality was obtained with approximately 32% phenolic resin mass fraction, which can be used for ultrasonic insertion, with the maximum insertion depth up to 10mm in room temperature.
- carbon fiber /
- phenolic resin /
- Z-pin pultrusion /
- twist /
- mechnaical performance

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参考文献(17)

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