APPLICATION OF DYNAMIC MECHANICAL ANALYSIS FOR UV-CURED COATINGS

Shakeeba Jalali

doi:10.51594/cmsrj.v2i2.138

APPLICATION OF DYNAMIC MECHANICAL ANALYSIS FOR UV-CURED COATINGS

Authors

Shakeeba Jalali University of Kabul,

DOI:

https://doi.org/10.51594/cmsrj.v2i2.138

Keywords:

UV Coatings, Soya Epoxy Ester, Dynamic Mechanical Analysis

Abstract

The present study is about soya epoxy ester which was made by epoxy resin and fatty acid. Oleochemical polyols were prepared after the soya epoxy ester reacted with various hydroxyl and cellulose based derivatives. These oleochemical polyols were changed to urethanes prepolymers by reacting NCO groups of TDI and IPDI. By utilizing the reaction of NCO end group of urethane with HEMA, these urethanes were transformed in to urethane acrylate oligomer. By mixing the oligomers with various reactive diluents, UV curable coating compositions were derived. The methodology was based on dynamic mechanical analysis. The UV cured samples from cellulose based oleochemical polyols exhibit good mechanical and thermal properties. Their mechanical properties are more dependent on double bonds from unsaturated contribute to curing with extra cross-linking by an oxidative mechanism.

Published

2020-02-27 — Updated on 2020-06-23

Issue

Vol. 2 No. 2 (2020)

Section

Articles

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