自修复EMAA纤维束缝合复合材料抗冲击层间性能研究

doi:10.19936/j.cnki.2096-8000.20231028.004

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (10): 23-31.DOI: 10.19936/j.cnki.2096-8000.20231028.004

自修复EMAA纤维束缝合复合材料抗冲击层间性能研究

葛超坤, 铁瑛^*, 张臻臻, 杨威亚

郑州大学机械与动力工程学院,郑州450001

收稿日期:2022-08-24 出版日期:2023-10-28 发布日期:2023-12-13
通讯作者: 铁瑛(1978—),女,博士后,教授,主要从事自修复复合材料方面的研究,tieying@zzu.edu.cn。
作者简介:葛超坤(1998—),男,硕士研究生,主要从事自修复复合材料方面的研究。
基金资助:
国家自然科学基金面上项目(52175153)

Research on interlaminar impact resistance of self-healing EMAA fiber bundle suture composites

GE Chaokun, TIE Ying^*, ZHANG Zhenzhen, YANG Weiya

School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China

Received:2022-08-24 Online:2023-10-28 Published:2023-12-13

摘要/Abstract

摘要： 针对碳纤维增强树脂基复合材料层间断裂韧性不足、抗冲击损伤容限低以及冲击损伤后修复困难等问题,利用缝合和分阶段共固化工艺,制备热塑性树脂纤维EMAA缝合复合材料试件,并进行自修复前后冲击性能研究。将铺层好的预浸料沿厚度方向进行热塑性树脂纤维EMAA的缝合,在内部建立起三维自修复网络,经过分阶段加热加压固化,加工成冲击试件。采用不同能量对缝合EMAA复合材料层合板进行一次冲击及自修复后冲击试验,对冲击后损伤的缝合EMAA复合材料层合板试件进行愈合试验,对不同冲击能量下未修复层合板和自修复复合材料层合板的损伤及其自修复前后的抗冲击性能开展了研究。试验结果表明:在相同能量冲击作用下,缝合EMAA较未缝合EMAA复合材料层合板损伤损耗能量最大降低17.66%,损伤更小,具有更好的抗冲击性能;自修复后层合板修复效率最低为97.96%,较好地实现了材料的自修复功能。

关键词: 自修复, 缝合, EMAA, 抗冲击性能, 复合材料

Abstract: In order to overcome the disadvantage of insufficient interlaminar fracture toughness of carbon fiber reinforced resin matrix composites, low impact damage tolerance and difficult repair after impact damage, thermoplastic resin fiber EMAA suture composite specimens were prepared by suture and phased co-curing process, and the impact properties before and after self-healing were studied. The layered prepreg was sutured with thermoplastic resin fiber EMAA along the thickness direction, a three-dimensional self-healing network was established internally, and the impact specimens were processed through phased heating and pressure curing. The primary impact test and the impact test after self-healing of the suture EMAA composite laminate were carried out with different energies and the healing test of the suture EMAA composite laminate specimen damaged after impact was carried out. The damage of unrepaired laminates and self-healing composite laminates under different impact energy and the impact resistance of self-healing composite laminates before and after repair were studied. The results show that under the same impact energy, the damage loss energy of sutured EMAA composite laminate is 17.66% lower than that of unsutured EMAA composite laminate, and the damage is smaller and the laminate has better impact resistance. The lowest repair efficiency of laminates after self-healing is 97.96%, which better realizes the self-healing function of materials.

Key words: self-healing, suture, EMAA, impact resistance, composites

中图分类号:

TB332

葛超坤, 铁瑛, 张臻臻, 杨威亚. 自修复EMAA纤维束缝合复合材料抗冲击层间性能研究[J]. 复合材料科学与工程, 2023, 0(10): 23-31.

GE Chaokun, TIE Ying, ZHANG Zhenzhen, YANG Weiya. Research on interlaminar impact resistance of self-healing EMAA fiber bundle suture composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(10): 23-31.

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自修复EMAA纤维束缝合复合材料抗冲击层间性能研究

Research on interlaminar impact resistance of self-healing EMAA fiber bundle suture composites

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