Thermal Stability of Polyurethane Coating Prepared by Using Diphenylolpropane

Indira N. Bakirova; Svetlana E. Mitrofanova

doi:10.4028/www.scientific.net/KEM.899.739

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 899Thermal Stability of Polyurethane Coating Prepared...

Thermal Stability of Polyurethane Coating Prepared by Using Diphenylolpropane

Abstract:

Thermal stability on air of polyurethane varnish coating prepared from diphenylolpropane, polyetherpolyol and polyisocyanate was assessed. The presence of urethane groups, formed by phenolic hydroxyl of diphenylolpropane, in the polymer structure was shown to decrease its thermooxidative degradation onset temperature. At the same time, deceleration of thermooxidative processes due to stabilizing effect of diphenylolpropane released at the beginning of thermal decay of polyurethane is observed in the higher temperature region.

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Periodical:

Key Engineering Materials (Volume 899)

Pages:

739-744

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.899.739

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Online since:

September 2021

Authors:

Indira N. Bakirova*, Svetlana E. Mitrofanova

Keywords:

Diphenylolpropane, Polyurethane Varnish, Thermooxidative Degradation

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