TPU无纺布对玻纤预制体渗透率和FRP层合板层间韧性的影响

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (3): 5-10.

• 基础研究 • 下一篇

TPU无纺布对玻纤预制体渗透率和FRP层合板层间韧性的影响

张娜¹, 吕广超¹, 刘春太¹, 谈昆伦²

1.郑州大学国家橡塑模具工程研究中心,郑州450002;
2.常州市宏发纵横新材料科技股份有限公司,常州213135

收稿日期:2018-07-02 出版日期:2019-03-28 发布日期:2019-03-28
通讯作者: 徐平(1969-),男,博士,高级工程师,主要从事复合材料制造方面的研究,xuping@saicmotor.com。
作者简介:张娜(1981-),女,博士,副教授,主要从事复合材料性能方面的研究。
基金资助:
国家重点研发计划(2016YFB0101602);中国博士后(2016M592305郑州大学力学与工程科学学院博士后);河南省项目(16A430010)

EFFECT OF TPU NONWOVEN FABRIC ON PERMEABILITY FOR GLASS FIBER PREFORM AND TOUGHNESS PROPERTIES OF GF/EP COMPOSITES

ZHANG Na¹, LV Guang-chao¹, LIU Chun-tai¹, TAN Kun-lun²

1.National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University,Zhengzhou 450002, China;
2. PGTEX China Co., Ltd., Changzhou 213135, China

Received:2018-07-02 Online:2019-03-28 Published:2019-03-28

摘要/Abstract

摘要： 将熔喷成型的热塑性聚氨酯(TPU)无纺布(TNF)作为复合材料结构化的增韧层,采用真空树脂传递模塑(VARTM)工艺制备无纺布/玻璃纤维/环氧(TNF/GF/EP)复合材料,研究了其层间断裂韧性以及增韧机制,并对无纺布引入前后的玻璃纤维织物预浸体的渗透率进行了测量。结果表明:TNF增韧后的复合材料层间断裂韧性得到提高,Ⅰ型能量释放率G_ⅠC由790 J/m²增加到1411 J/m²,提高了78%,Ⅱ型能量释放率G_ⅡC由569.9 J/m²增加到1223.8 J/m²,提高了115%,均表现出明显的增韧效果;同时,TNF的引入使得复合材料预制体体系的渗透率下降了56.5%。

关键词: RTM, 复合材料, 层间韧性, 渗透率, TPU, 无纺布

Abstract: In this study, the thermoplastic polyurethane nonwoven fabric (TNF) was chosen as structural toughening layer to improve the composite toughening, and the composites were fabricated by vacuum-assisted resin transfer molding (VARTM) technique. The toughening properties of the composites were investigated as well as permeability. Toughening of GF/EP composites was achieved by interleaving TNF. It provided the best all-round performance with fracture toughness improvements of 78% and 115% for mode-Ⅰ and mode-Ⅱ, respectively. At the same time, the permeability of TNF/GF/EP composites was decreased by 56.5%.

Key words: RTM, composites, interlaminar toughen, permeability, TPU, nonwoven fabric

中图分类号:

TB332

张娜, 吕广超, 刘春太, 谈昆伦. TPU无纺布对玻纤预制体渗透率和FRP层合板层间韧性的影响[J]. 玻璃钢/复合材料, 2019, 0(3): 5-10.

ZHANG Na, LV Guang-chao, LIU Chun-tai, TAN Kun-lun. EFFECT OF TPU NONWOVEN FABRIC ON PERMEABILITY FOR GLASS FIBER PREFORM AND TOUGHNESS PROPERTIES OF GF/EP COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(3): 5-10.

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TPU无纺布对玻纤预制体渗透率和FRP层合板层间韧性的影响

EFFECT OF TPU NONWOVEN FABRIC ON PERMEABILITY FOR GLASS FIBER PREFORM AND TOUGHNESS PROPERTIES OF GF/EP COMPOSITES

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