Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network

Present investigation deals with development of glass fiber reinforced polymer (GFRP) composite with a matrix composed of a polymer blend of epoxy and vinyl ester. The evolved Interpenetrating polymer network (IPN) formed due to blending of the polymers resulted in improved tensile, flexural and int...

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Autores principales:	B.N.V.S. Ganesh Gupta K, Mritunjay Maharudrayya Hiremath, Bankim Chandra Ray, Rajesh Kumar Prusty
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Mechanical testing Thermomechanical testing Fourier transform infrared spectroscopy analysis Interpenetrating polymer network (IPN) Fractography Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/1565763e05ec47deaa702af92f9f6daf
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spelling	oai:doaj.org-article:1565763e05ec47deaa702af92f9f6daf2021-11-24T04:26:11ZImproved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network0142-941810.1016/j.polymertesting.2020.107008https://doaj.org/article/1565763e05ec47deaa702af92f9f6daf2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820322376https://doaj.org/toc/0142-9418Present investigation deals with development of glass fiber reinforced polymer (GFRP) composite with a matrix composed of a polymer blend of epoxy and vinyl ester. The evolved Interpenetrating polymer network (IPN) formed due to blending of the polymers resulted in improved tensile, flexural and interlaminar shear properties of the hybrid composite than that of both glass fiber/epoxy (GE) and glass fiber/vinyl ester (GVE) composites. Resin burn-off test revealed that the glass fiber volume fraction to be almost identical in all three composite laminates, which was ~45%. The role of curing temperatures (140, 170, 200 and 230 °C) on the cure kinetics of the composites was examined based on the flexural properties of the composites, which is also supported with the dynamic mechanical thermal analysis (DMTA) results. The glass fiber reinforced epoxy-vinyl ester interpenetrating polymer network (GEVIPN) composite led to 21.83%, 22.54% and 13.43% improvement in interlaminar shear strength (ILSS), tensile and flexural strength respectively, over GE composite at optimal post cure temperature. Further, chemical restructuring of GEVIPN composite was analysed by Fourier transform infrared spectroscopy (FTIR). From scanning electron microscopy (SEM), it was comprehended that strong interfacial bonding between the matrix and fiber made GEVIPN composite exhibit better mechanical properties.B.N.V.S. Ganesh Gupta KMritunjay Maharudrayya HiremathBankim Chandra RayRajesh Kumar PrustyElsevierarticleMechanical testingThermomechanical testingFourier transform infrared spectroscopy analysisInterpenetrating polymer network (IPN)FractographyPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 107008- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mechanical testing Thermomechanical testing Fourier transform infrared spectroscopy analysis Interpenetrating polymer network (IPN) Fractography Polymers and polymer manufacture TP1080-1185
spellingShingle	Mechanical testing Thermomechanical testing Fourier transform infrared spectroscopy analysis Interpenetrating polymer network (IPN) Fractography Polymers and polymer manufacture TP1080-1185 B.N.V.S. Ganesh Gupta K Mritunjay Maharudrayya Hiremath Bankim Chandra Ray Rajesh Kumar Prusty Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
description	Present investigation deals with development of glass fiber reinforced polymer (GFRP) composite with a matrix composed of a polymer blend of epoxy and vinyl ester. The evolved Interpenetrating polymer network (IPN) formed due to blending of the polymers resulted in improved tensile, flexural and interlaminar shear properties of the hybrid composite than that of both glass fiber/epoxy (GE) and glass fiber/vinyl ester (GVE) composites. Resin burn-off test revealed that the glass fiber volume fraction to be almost identical in all three composite laminates, which was ~45%. The role of curing temperatures (140, 170, 200 and 230 °C) on the cure kinetics of the composites was examined based on the flexural properties of the composites, which is also supported with the dynamic mechanical thermal analysis (DMTA) results. The glass fiber reinforced epoxy-vinyl ester interpenetrating polymer network (GEVIPN) composite led to 21.83%, 22.54% and 13.43% improvement in interlaminar shear strength (ILSS), tensile and flexural strength respectively, over GE composite at optimal post cure temperature. Further, chemical restructuring of GEVIPN composite was analysed by Fourier transform infrared spectroscopy (FTIR). From scanning electron microscopy (SEM), it was comprehended that strong interfacial bonding between the matrix and fiber made GEVIPN composite exhibit better mechanical properties.
format	article
author	B.N.V.S. Ganesh Gupta K Mritunjay Maharudrayya Hiremath Bankim Chandra Ray Rajesh Kumar Prusty
author_facet	B.N.V.S. Ganesh Gupta K Mritunjay Maharudrayya Hiremath Bankim Chandra Ray Rajesh Kumar Prusty
author_sort	B.N.V.S. Ganesh Gupta K
title	Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
title_short	Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
title_full	Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
title_fullStr	Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
title_full_unstemmed	Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network
title_sort	improved mechanical responses of gfrp composites with epoxy-vinyl ester interpenetrating polymer network
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/1565763e05ec47deaa702af92f9f6daf
work_keys_str_mv	AT bnvsganeshguptak improvedmechanicalresponsesofgfrpcompositeswithepoxyvinylesterinterpenetratingpolymernetwork AT mritunjaymaharudrayyahiremath improvedmechanicalresponsesofgfrpcompositeswithepoxyvinylesterinterpenetratingpolymernetwork AT bankimchandraray improvedmechanicalresponsesofgfrpcompositeswithepoxyvinylesterinterpenetratingpolymernetwork AT rajeshkumarprusty improvedmechanicalresponsesofgfrpcompositeswithepoxyvinylesterinterpenetratingpolymernetwork
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Improved mechanical responses of GFRP composites with epoxy-vinyl ester interpenetrating polymer network

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