The effects of sulphuric acid concentration and the sequential layup of glass fibre reinforcements on the diffusion behaviour of glass epoxy composite laminates were studied. In all, composites of six different resin systems viz., general purpose polyester, bis phenol-A polyester, vinyl ester, LY 556 epoxy, and MY 750 epoxy resins, reinforced with different layup sequencing consisting of chopped strand mat (CSM) and woven roving mat (WR) were exposed to sulphuric acid environments of different concentrations. The results of the study indicated that isophthalic polyester resin exhibited maximum resistance to sulphuric acid while general purpose polyester resin performed relatively inferior. The diffusion phenomenon became anamalous as the concentration of the sulphuric acid increased. Among the layup sequences considered, composite specimens with CSM as the skin layers exhibited higher weight gain than those with WR as the skin layers.

dc.contributor.authorPai, R.
dc.contributor.authorKamath, M.S.
dc.contributor.authorRao, R.M.V.G.K.
dc.date.accessioned2026-02-05T11:00:34Z
dc.date.issuedAcid resistance of glass fibre composites with different layup sequencing: Part I-diffusion studies
dc.description.abstract1997
dc.identifier.citationJournal of Reinforced Plastics and Composites, 1997, 16, 11, pp. 1002-1012
dc.identifier.issn7316844
dc.identifier.urihttps://doi.org/10.1177/073168449701601102
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/28052
dc.publisherSAGE Publications Ltd
dc.subjectAcid resistance
dc.subjectComposition effects
dc.subjectDiffusion in solids
dc.subjectEpoxy resins
dc.subjectLaminated composites
dc.subjectPolyesters
dc.subjectSulfuric acid
dc.subjectChopped strand mats
dc.subjectWoven roving mats
dc.subjectGlass fiber reinforced plastics
dc.titleThe effects of sulphuric acid concentration and the sequential layup of glass fibre reinforcements on the diffusion behaviour of glass epoxy composite laminates were studied. In all, composites of six different resin systems viz., general purpose polyester, bis phenol-A polyester, vinyl ester, LY 556 epoxy, and MY 750 epoxy resins, reinforced with different layup sequencing consisting of chopped strand mat (CSM) and woven roving mat (WR) were exposed to sulphuric acid environments of different concentrations. The results of the study indicated that isophthalic polyester resin exhibited maximum resistance to sulphuric acid while general purpose polyester resin performed relatively inferior. The diffusion phenomenon became anamalous as the concentration of the sulphuric acid increased. Among the layup sequences considered, composite specimens with CSM as the skin layers exhibited higher weight gain than those with WR as the skin layers.

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