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UV curable flame retardant coating: a novel synthetic approach of trispiperazido phosphate based reactive diluent

Pundalik Pandharinath Mali (Department of Chemistry, Pratap College Amalner, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India)
Nilesh S. Pawar (Department of Chemistry, Pratap College Amalner, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India)
Narendra S. Sonawane (Department of Chemistry, B.S.S.P. Mandal’s Arts, Commerce and Science College, Dhule, India Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India)
Vikas Patil (University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India)
Rahul Patil (University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, India)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 13 November 2020

Issue publication date: 11 May 2021

127

Abstract

Purpose

The purpose of this work was to develop a new trispiperazido phosphate-based reactive diluent (diphosphate-piperazine hydroxyl acrylate [DPHA]) and used as a flame retardant with an epoxy acrylate (EA) in ultraviolet (UV)-curable wood coating.

Design/methodology/approach

The concentration of reactive diluent was varied from 0% to 20% in the UV-curable formulation with constant photoinitiator concentration. The effect of DPHA concentration on film properties was studied by differential scanning calorimetry and thermogravimetric analysis, gel content, water absorption and limiting oxygen index.

Findings

The results showed that the viscosity of the prepared formulation decreased by increasing reactive diluent (DPHA) concentration which leads to improving the coating efficiency. A high concentration of reactive diluent (DPHA) of the cured films shows good resistance against stain, mechanical and thermal properties, which results in an increased glass transition temperature (Tg) and cross-linking density of the films.

Originality/value

The new trispiperazido phosphate-based reactive diluent was used in wood coating formulation, which resulted in excellent flame-retardant properties with higher cross-linked density with good stain resistance. This material can provide a wide range of application for coating industries to produce a glossy finish.

Keywords

Acknowledgements

The authors wish to thank the Department of Chemistry Pratap College Amalner, for providing them the laboratory for research work, and Mr Mustapha Kapdia (Director, Color Tech PVT. Ltd., Mahape Navi Mumbai) for providing the UV-curing facility. The authors also wish to thank the principal of B.S.S.P. Mandal’s Arts, Commerce & Science College Songir, Dhule for general support of their research work.

Citation

Mali, P.P., Pawar, N.S., Sonawane, N.S., Patil, V. and Patil, R. (2021), "UV curable flame retardant coating: a novel synthetic approach of trispiperazido phosphate based reactive diluent", Pigment & Resin Technology, Vol. 50 No. 3, pp. 271-283. https://doi.org/10.1108/PRT-06-2020-0058

Publisher

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Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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