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Article Dans Une Revue Polymer Degradation and Stability Année : 2018

Grafting of phosphorus flame retardants on flax fabrics: Comparison between two routes

Résumé

Flax fabrics were modified through two grafting methods in order to improve their flame retardancy. Vinyl phosphonic acid was used to treat flax fabrics via a condensation reaction between phosphonic acid function and flax hydroxyl groups. It was also grafted under radiation conditions taking advantage of its carbon-carbon double bond. Grafting efficiency of each method was assessed by X-ray fluorescence and scanning electron microscopy. The effect of the phosphorus grafting on fire behavior was studied using thermogravimetric analysis, pyrolysis combustion flow calorimetry and a preliminary fire test. In all cases, the diffusion of the phosphorus molecules into the elementary fibers bulk was observed. Phosphorus content reached 1.4 wt% using radiation grafting, leading to self-extinguishing fabrics.
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hal-02874840 , version 1 (26-05-2021)

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Raymond Hajj, Roland El Hage, Rodolphe Sonnier, Belkacem Otazaghine, Benjamin Gallard, et al.. Grafting of phosphorus flame retardants on flax fabrics: Comparison between two routes. Polymer Degradation and Stability, 2018, 147, pp.25-34. ⟨10.1016/j.polymdegradstab.2017.11.006⟩. ⟨hal-02874840⟩
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