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Glass reinforced plastic (GRP) constitutes the commonest component of small sea going craft of all descriptions. This study provides a baseline molecular and elemental account of GRP's recovered from the marine environment. Fourteen samples of GRP sourced from scrapyards and one sample sourced from a GRP boat manufacturer were examined. Samples were analysed by x-ray fluorescence and mid infrared (MIR). The latter technique confirmed that all samples contained the same polyester resin, poly diallyl phthalate (PDP). The two techniques in combination indicate the presence of aluminium calcium borosilicate E-glass fibres (E denotes electrical) of variable origins. MIR results are consistent with hydrolysis of polyester, weakening of the glass fibre resin interface facilitating exposure of e-type fibres to water which accelerates fibre breakage. The implication being that aging of GRP in the marine environment represent sources for micro (<5 mm) and macro plastic release, plus fragmented asbestiform-like silicate fibres.
|Journal||Marine Pollution Bulletin|
|Issue number||Pt B|
|Publication status||Published - 26 Oct 2021|
- fibre glass reinforced plastic
- Marine environment
- Poly diallyl phthalate
- Mid infrared
- Fibre glass reinforced plastic
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- 1 Invited talk
Uni of Brighton partnership with Chichester Harbour, research funded by UKRI and Interreg Channel
Corina Ciocan (Presenter)9 Jul 2020
Activity: External talk or presentation › Invited talk