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Effect of surface treatment and twisting on tensile and bending properties of aramid unidirectional composites

Demircan, Özgür and Kosui, Tatsuya and Ashibe, Shinsuke and Nakai, Asami (2014) Effect of surface treatment and twisting on tensile and bending properties of aramid unidirectional composites. Composite Interfaces (SI), 21 (4). pp. 287-299. ISSN 0927-6440 (Print) 1568-5543 (Online)

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Official URL: http://dx.doi.org/10.1080/15685543.2013.852014

Abstract

The present work concentrates on the effect of epoxy surface treatment and twisting on mechanical and interfacial properties of unidirectional (UD) fiber reinforced thermoplastic composites. The purpose of study is to find out whether the mechanical and interfacial properties of composites can be improved by surface treatment and twisting or not. In all specimens, PA 66 was commingled with aramid (AR) yarn. AR was used as reinforcement and PA 66 was used as resin yarn. The different weight percent of epoxy, such as 3, 6, and 9wt% and twisting such as 0, 20, 40, 60, 80, and 100tpm, were applied on the commingled yarns. After fabrication of UD composites with commingled yarns, the mechanical properties of laminates were investigated by conducting tensile and three-point bending test. Consequently, the optimum twisting number and wt% of epoxy surface treatment was found. By increasing twisting until an optimum level, the tensile strength of fiber bundle as well as tensile and bending strength of UD composite increased. The interfacial properties of composites with various twisting levels did not change.

Item Type:Article
Uncontrolled Keywords:unidirectional composites; surface treatment; twisting; tensile and bending properties; scanning electron microscopy
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
ID Code:24480
Deposited By:Özgür Demircan
Deposited On:23 Nov 2014 22:51
Last Modified:23 Nov 2014 22:51

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