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Title: High performance paints from a sustainable resource
Authors: Ahmad, Sharif
Ashraf, S M
Kumar, S
Alam, Manawwer
Hasnat, Abul
Keywords: Paint
linseed oil epoxy
poly(methyl methacrylate)
Issue Date: Mar-2005
Publisher: CSIR
IPC CodeC09D 163/00
Abstract: Epoxy based paints are widely formulated from diglycedyl ether of bisphenol-A (DGEBA). They are foremost anticorrosive industrial paints but show poor outdoor weatherability, low resistance to acids and are susceptible to chalking. In view of the fast depleting stocks of petroleum, DGEBA, one of the petroleum-derived chemicals in paints can be partially or fully replaced by a vegetable oil epoxy, which is a sustainable based resource material. Attempts to obtain usable paints from pure vegetable oil epoxy like epoxidised linseed oil (LOE), by authors have been unsuccessful as it does not form rigid film. To overcome this problem, the oil epoxy was blended with hard polymers like polymethyl methacrylate (PMMA) and polystyrene (PS), with a low weight percentage to obtain LOE based compatible blend paints. Such a low quantity of PMMA and PS were found to yield fast setting paint films of good physico-mechanical and anticorrosive characteristics. It was observed that LOE-PMMA-MF paint showed improved performance than DGEBA-Polyamide (PA) paint except against alkali.
Page(s): 193-197
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(2) [March 2005]

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