Effect of sizing agents on tensile properties of carbon fiber filament wound structures

IF 2.2 4区工程技术 Q1 MATERIALS SCIENCE, TEXTILES

Journal of Engineered Fibers and Fabrics Pub Date : 2024-01-01 DOI:10.1177/15589250231183159

Shubin Zhang, Hongxing Gu, Ming Zhao, Huaiqin Xie, Yudong Huang

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Abstract

In order to evaluate the effects of sizing agents on the wettability, strength loss, and properties of final filament wound structures during filament winding of carbon fibers, three types of sizing agent based on epoxy, epoxy + polyester, and epoxy + polyurethane were used to treat carbon fibers, the surface properties of carbon fiber samples after treatment were evaluated using SEM, infrared spectroscopy, dynamic contact angle analysis, and interlaminar shear strength (ILSS) test, the strength loss caused by fiber damage during filament winding was quantitatively analyzed, and the strength properties of the filament wound structures were characterized by NOL ring test. The results showed that the sizing agent treatment only slightly improved the surface free energy and ILSS of carbon fibers, but it had obvious influence on the strength loss rate of carbon fiber bundles. Added polyester or polyurethane in epoxy-based sizing may improve its protective effect for carbon fiber, and thus decrease strength loss during winding process, result in better tensile properties of carbon fiber filament wound structures.

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上浆剂对碳纤维长丝缠绕结构拉伸性能的影响

为了评估碳纤维长丝缠绕过程中上浆剂对最终长丝缠绕结构的润湿性、强度损失和性能的影响，使用了基于环氧树脂、环氧树脂+聚酯和环氧树脂+聚氨酯的三种上浆剂来处理碳纤维、利用扫描电镜、红外光谱、动态接触角分析和层间剪切强度（ILSS）测试评估了处理后碳纤维样品的表面特性，定量分析了纤维在缠绕过程中受损所造成的强度损失，并利用 NOL 环测试表征了缠绕结构的强度特性。结果表明，上浆剂处理只能轻微改善碳纤维的表面自由能和 ILSS，但对碳纤维束的强度损失率有明显影响。在环氧基上浆剂中添加聚酯或聚氨酯可提高其对碳纤维的保护作用，从而减少缠绕过程中的强度损失，使碳纤维丝缠绕结构具有更好的拉伸性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Engineered Fibers and Fabrics 工程技术-材料科学：纺织

CiteScore

5.00

自引率

6.90%

发文量

审稿时长

4 months

期刊介绍： Journal of Engineered Fibers and Fabrics is a peer-reviewed, open access journal which aims to facilitate the rapid and wide dissemination of research in the engineering of textiles, clothing and fiber based structures.