Investigating the Interlaminar Fracture Toughness of Glass Fiber/Epoxy Composites Modified by Polypropylene Spunbond Nonwoven Fabric Interlayers 


Vol. 25,  No. 3, pp. 1061-1073, Mar.  2024
10.1007/s12221-023-00466-4


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  Abstract

Nonwoven webs can be used as interleaves to improve the delamination resistance of fiber-reinforced composites. This paper addresses the flexural and interlaminar fracture behavior of glass fiber/epoxy composites with Spunbond polypropylene nonwoven interlayers. For this purpose, 7-layer hybrid composites were fabricated in intraply configuration using four layers of glass fabric and three interlayers of polypropylene spunbond nonwoven fabric. The effect of nonwoven fabric parameters, including areal weight densities [40, 50, 60, 70, and 90 GSM (g/m2)], and fabric orientation (longitudinal and cross direction) was investigated. The results of the three-point bending test showed that the nonwoven interlayer had a positive effect on the maximum flexural load and work of fracture. It caused an increase of approximately 163% in the maximum load of the sample, which had a nonwoven interlayer weight of 70 GSM compared with the non-hybrid glass sample. The glass fiber/epoxy composite was delaminated at lower strains than composites with polypropylene interlayer. The results showed that in hybrid samples, the presence of nonwoven interlayer led to increased Mode-II fracture toughness of composite (GIIC) by 44% and 56% in the samples which has the nonwoven interlayer weight of 90 and 50 GSM, respectively, compared to the non-hybrid glass fabric sample.

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  Cite this article

[IEEE Style]

H. Nosraty, M. Bahmani, H. Nosraty, S. A. Mirdehghan, S. M. H. Varkiani, "Investigating the Interlaminar Fracture Toughness of Glass Fiber/Epoxy Composites Modified by Polypropylene Spunbond Nonwoven Fabric Interlayers," Fibers and Polymers, vol. 25, no. 3, pp. 1061-1073, 2024. DOI: 10.1007/s12221-023-00466-4.

[ACM Style]

Hooshang Nosraty, Mehran Bahmani, Hooshang Nosraty, Seyed Abolfazl Mirdehghan, and Seyed Mohammad Hosseini Varkiani. 2024. Investigating the Interlaminar Fracture Toughness of Glass Fiber/Epoxy Composites Modified by Polypropylene Spunbond Nonwoven Fabric Interlayers. Fibers and Polymers, 25, 3, (2024), 1061-1073. DOI: 10.1007/s12221-023-00466-4.

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pISSN : 1229 - 9197
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