Improving interfacial strength of epoxy composites by constructing “palm‐tree”‐like structure on carbon fiber

Zhaohui Lu; Muxuan Li; Mei Liang; Yang Chen; Huawei Zou; Xiancheng Ren

doi:10.1002/pc.26173

journal article·2021-09

Improving interfacial strength of epoxy composites by constructing “palm‐tree”‐like structure on carbon fiber

Zhaohui Lu, Muxuan Li, Mei Liang, Yang Chen, Huawei Zou, Xiancheng Ren

Polymer Composites· Volume 42· Issue 9

Publisher page

Source abstract

Abstract

Abstract Modified graphene oxide (GO)/carbon fiber (CF)/epoxy (EP) composites are prepared by combining grafting and sizing methods. The effects of different molecular chain lengths of poly(oxypropylene)amines on the surface grafting of GO, as well as the interfacial structure and properties of CF and EP resin after sizing, were investigated. The “palm‐tree”‐like structure interfacial enhancement theory was innovatively proposed. The characterization results showed that the short‐chain poly(oxypropylene)amines modified GO (D400‐GO) had a good effect on the interfacial properties of CF and EP resin. When the content of D400‐GO was 0.20 wt%, the interfacial shear strength was as high as 70.56 MPa, which was 37% higher than the virgin CF. In this article, a new theoretical model is proposed for multiscale interfacial enhancement.

Source: crossref · Quality: baseline

Research context

Nanomaterials Composites

OpenAlex topics: Fiber-reinforced polymer composites · Graphene research and applications · Mechanical Behavior of Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China

College of Polymer Science and Engineering Sichuan University Chengdu Sichuan China

Funding

National Natural Science Foundation of China · State Key Laboratory of Polymer Materials Engineering

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