Effects of Concentrations of Methyl Ethyl Ketone Peroxide on Gelation Characteristics and Shrinkage of Solventless Polyester Varnish

Autor:	A. K. Shukla, Reena Singhal, P.K. Singh, A. K. Nagpal, Bilson Shukla
Rok vydání:	2006
Předmět:	Methyl ethyl ketone peroxide General Chemical Engineering Varnish General Medicine General Chemistry Activation energy Catalysis Polyester chemistry.chemical_compound Kinetic rate chemistry visual_art Polymer chemistry visual_art.visual_art_medium Shrinkage
Zdroj:	Journal of Oleo Science. 55:299-303
ISSN:	1347-3352 1345-8957
DOI:	10.5650/jos.55.299
Popis:	The effects of concentrations of methyl ethyl ketone peroxide (MEKP) on the gelation characteristics and the shrinkage properties of solventless polyester varnishes were studied. Activation energies for gelation at different concentrations (0.75, 1.0, 1.5, 2.0, 2.5, 3.0 and 5.0 phr) of MEKP were 56.2, 54.3, 53.9, 51.5, 49.4, 44.0, and 41.6 kJ/mole, respectively. The mechanism of gelation and the kinetic rate equation are proposed to define the possible reasons for the variation of the above-mentioned varnish properties in the presence of the catalyst.
Databáze:	OpenAIRE
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