Effect of Polyamide Binder on Mechanical Properties of Carbon Fiber Spread Tow/Epoxy Composite 


Vol. 23,  No. 7, pp. 1995-2002, Jul.  2022
10.1007/s12221-022-4134-z


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  Abstract

The evaluation of polyamide (PA) binder on a carbon fiber spread tow for improving the mechanical properties of carbon-fiber-reinforced epoxy (CF/epoxy) composites is presented herein. PA powder is applied to spread tow to maintain its shape at the end of the tow spreading process. Test specimens are prepared via vacuum-assisted resin transfer molding. A reference sample of a spread-tow-treated epoxy binder is fabricated to confirm the thermoplastic binder treatment effect and its conditions on CF/epoxy composites. The effect of PA binder treatment on the CF/epoxy composites is assessed via mechanical tests, i.e., tensile, flexural, and interlaminar shear strength (ILSS) tests. In addition, the fracture morphology of the composites is observed using FE-SEM to support the mechanical testing results. Experimental results confirm that compared with the epoxy binder (3.5 wt%)-treated spread tow/epoxy composite, the flexural properties and ILSS of the PA binder (3.5 wt%)-treated spread tow/epoxy composite improve significantly owing to the positive effect of the PA binder. In general, the PA-treated CF/epoxy composite can be used to improve the mechanical strength of carbon fiber composites for engineering applications.

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  Cite this article

[IEEE Style]

J. U. Roh, Y. Hwang, J. Roh, G. Nam, "Effect of Polyamide Binder on Mechanical Properties of Carbon Fiber Spread Tow/Epoxy Composite," Fibers and Polymers, vol. 23, no. 7, pp. 1995-2002, 2022. DOI: 10.1007/s12221-022-4134-z.

[ACM Style]

Jeong U Roh, Young-Min Hwang, Jae-Seung Roh, and Gibeop Nam. 2022. Effect of Polyamide Binder on Mechanical Properties of Carbon Fiber Spread Tow/Epoxy Composite. Fibers and Polymers, 23, 7, (2022), 1995-2002. DOI: 10.1007/s12221-022-4134-z.

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