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Article Dans Une Revue Progress in Organic Coatings Année : 2022

Synergistic effect of DOPO and VMDMS for flame retardancy of alkyd resins

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Résumé

New polysiloxane oligomers containing phosphorus, 6-(2-(dihydroxy(methyl)silyl)ethyl)dibenzo[c,e][1,2]oxaphosphinine 6-oxide (DOPO-VMDMS), have been synthetized and grafted to the remaining hydroxyl groups of alkyd resins in order to obtain hybrid alkyd resins with flame retardant properties. These silicone alkyd resins have demonstrated better drying time, gloss and chemical resistance than reference alkyd resins without DOPO-VMDMS. Moreover, the thermal and flame retardancy properties have been investigated using differential scanning calorimeter, thermogravimetric analysis and pyrolysis-combustion flow calorimeter. The alkyd resins were applied as a coating on wood and fire behavior was tested by cone calorimeter analysis. The most effective coating contains 30 wt% DOPO-VMDMS and exhibited a 55 % reduction in pHRR compare to the resins without DOPO-VMDMS.

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Chimie Polymères
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Dates et versions

hal-03750097 , version 1 (11-08-2022)

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Maxinne Denis, Damien Le Borgne, Rodolphe Sonnier, Sylvain Caillol, Claire Negrell. Synergistic effect of DOPO and VMDMS for flame retardancy of alkyd resins. Progress in Organic Coatings, 2022, 172, pp.107086. ⟨10.1016/j.porgcoat.2022.107086⟩. ⟨hal-03750097⟩
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