Preparation and interfacial properties of functionalised graphene oxide modified carbon fibre/epoxy resin matrix composites

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2023-05-09 DOI:10.1080/14658011.2023.2207059

Longchun Liu, Sen Liang, Changsheng Zheng, Depan Wang, Yuesong Zhou

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引用次数: 0

Abstract

ABSTRACT The interfacial properties of carbon fibre (CF) reinforced epoxy resin composites are the key factors affecting the mechanical properties of the materials. To improve the interfacial adhesion between CF and epoxy resin, an effective CF surface modification method is proposed in this paper. The surface of graphene oxide (GO) was functionalised with 3-aminopropyltriethoxysilane (APTES), and then the functionalised graphene oxide (FGO) was grafted on the surface of CF. The surface roughness of modified CF was significantly improved by the SEM experiment. The effectiveness of grafting was verified by FTIR and XPS, and the chemical functional groups on the surface of modified CF were increased. The microstructure of the failure interface of the composites was observed, the modification did not reduce the tensile strength of CF, and the interlaminar shear strength (ILSS) of modified CF/ epoxy resin composite was increased by 39.91%. It was found that the CF modified by FGO was beneficial to the improvement of the interface properties of CF/epoxy resin composite. This has positive academic significance for improving the interfacial and mechanical properties of CF composites.

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功能化氧化石墨烯改性碳纤维/环氧树脂基复合材料的制备及其界面性能

碳纤维增强环氧树脂复合材料的界面性能是影响材料力学性能的关键因素。为了提高CF与环氧树脂的界面附着力，本文提出了一种有效的CF表面改性方法。用3-氨基丙基三乙氧基硅烷(APTES)对氧化石墨烯(GO)表面进行功能化处理，然后将功能化后的氧化石墨烯(FGO)接枝到CF表面，SEM实验结果表明，改性后的CF表面粗糙度明显提高。FTIR和XPS验证了接枝的有效性，改性后的CF表面的化学官能团有所增加。对复合材料破坏界面的微观结构进行了观察，改性并未降低CF的抗拉强度，改性后CF/环氧树脂复合材料的层间剪切强度(ILSS)提高了39.91%。结果表明，FGO改性的CF有利于CF/环氧树脂复合材料界面性能的改善。这对改善CF复合材料的界面性能和力学性能具有积极的学术意义。

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

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.