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Lin, Lin
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- 2024Operando Investigation on the Role of Densification and Chemo‐Mechanics on Solid‐State Cathodescitations
- 2022A Smartphone-Based Platform Assisted by Artificial Intelligence for Reading and Reporting Rapid Diagnostic Tests: Evaluation Study in SARS-CoV-2 Lateral Flow Immunoassayscitations
- 2010Improved fracture toughness of carbon fibre/epoxy composite laminates using dissolvable thermoplastic fibrescitations
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article
Improved fracture toughness of carbon fibre/epoxy composite laminates using dissolvable thermoplastic fibres
Abstract
This paper reports on a novel toughening concept based on dissolvable phenoxy fibres, which are added at the interlaminar region in a carbon fibre/epoxy composite. The composites were prepared by resin infusion of carbon fibre fabric with the phenoxy introduced as a chopped fibre interleaf between the carbon fibre plies. The thermoplastic phenoxy fibre dissolved in the epoxy during curing at elevated temperatures and a phase separated morphology with phenoxy-rich secondary phase was formed upon curing. It was found that the average Mode-I fracture toughness value, G 1c increased tenfold with only 10 wt.% (with regard to the total matrix content) phenoxy fibre added. Other properties such as Young's modulus, tensile strength and thermal stability were not adversely affected. The mechanical and thermal properties of the neat epoxy-phenoxy blends were also studied for comparison. © 2010 Elsevier Ltd. All rights reserved.