复合材料树脂传递模塑注胶工艺调控方法与技术

doi:10.13475/j.fzxb.20190806607

纺织学报 ›› 2019, Vol. 40 ›› Issue (12): 178-184.doi: 10.13475/j.fzxb.20190806607

• 纺织科技新见解学术沙龙专栏:碳纤维及其复合材料制备技术及应用 • 上一篇

复合材料树脂传递模塑注胶工艺调控方法与技术

张国利¹^,²^,³(), 张策¹^,²^,³, 史晓平¹^,²^,³, 王志鹏¹^,²^,³, 姜茜¹^,²^,³

1.天津工业大学纺织科学与工程学院, 天津 300387
2.天津工业大学复合材料研究院, 天津 300387
3.天津工业大学先进纺织复合材料教育部重点实验室, 天津 300387

收稿日期:2019-08-26 修回日期:2019-10-12 出版日期:2019-12-15 发布日期:2019-12-18
作者简介:张国利(1964—),男,教授,博士。主要研究方向为复合材料成型理论与制备技术。E-mail:guolizhang@tjpu.edu.cn。
基金资助:
天津市自然科学基金项目(19JCYBJC18300)

Control method and technology of resin injection for resin transfer molding in manufacturing of composite materials

ZHANG Guoli¹^,²^,³(), ZHANG Ce¹^,²^,³, SHI Xiaoping¹^,²^,³, WANG Zhipeng¹^,²^,³, JIANG Qian¹^,²^,³

1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
2. Institute of Composite Materials, Tiangong University, Tianjin 300387, China
3. Key Laboratory of Advanced Textile Composites, Ministry of Education, Tiangong University, Tianjin 300387, China

Received:2019-08-26 Revised:2019-10-12 Online:2019-12-15 Published:2019-12-18

摘要/Abstract

摘要：

针对树脂传递模塑成型(RTM)注胶过程中,预型体内部存在局部空气无法完全排除或树脂不能完全浸润有效区域而产生气泡或干斑问题,系统分析了RTM成型过程中气泡缠裹和干斑的形成机制。介绍了注胶工艺过程中预型体渗透率区域分布差异性、预型体纱束空间交织规律差异性、预型体与模腔尺寸差异性和RTM模具进出料口位置数量与所需差异性等非确定性因素对RTM注胶流动质量的影响,并提出RTM树脂流动形态调控的新技术与方法。同时,对T型复合材料结构制件进行RTM树脂流动工艺仿真模拟,为复杂结构复合材料RTM注胶新技术的发展提供理论与方法参考。

关键词: 树脂传递模塑成型, 复合材料, 气泡, 干斑, 缺陷形成机制, 调控方法

Abstract:

Aiming at the problem of bubbles or dry spots caused by incapability of completely removing local air or completely impregnating the effective area by resin in the resin injection for resin transfer molding (RTM), the mechanism of bubble wrapping and dry spot formation in RTM forming process was systematically analyzed. The influence of non-deterministic factors in RTM molding process on the flow quality of RTM resin injection was summarized and introduced, such as the regional distribution difference of preform permeability, the difference in interleaving law of preform yarn bundle, the difference in size of preform and cavity, the difference in number of inlet and outlet positions of RTM mould and the difference in requirements, and the new technologies and methods for regulating the flow shape of resin were put forward. Finally, the simulation of RTM resin flow process for T-type composite structural products was carried out, which provides a theoretical and method reference for the development of new RTM injection technology for composite materials with complicated structures.

Key words: resin transfer molding, composite, bubble, dry spot, defect formation mechanism, control method

中图分类号:

TB332

张国利, 张策, 史晓平, 王志鹏, 姜茜. 复合材料树脂传递模塑注胶工艺调控方法与技术[J]. 纺织学报, 2019, 40(12): 178-184.

ZHANG Guoli, ZHANG Ce, SHI Xiaoping, WANG Zhipeng, JIANG Qian. Control method and technology of resin injection for resin transfer molding in manufacturing of composite materials[J]. Journal of Textile Research, 2019, 40(12): 178-184.

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复合材料树脂传递模塑注胶工艺调控方法与技术

Control method and technology of resin injection for resin transfer molding in manufacturing of composite materials

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