Posted on 02/03/2021 in Furniture & Textiles 2021
Silanes-based P & N FRs for textiles

New wash-resistant Si – N – P flame retardants developed by DTNW in German government innovation project. The AiF-IGF project No. 19617 N has developed new silane-based PIN FRs, containing silicon, phosphorus and nitrogen, using industrially available amino silanes. The FRs were synthesised according to different strategies with either one or two reaction steps. Lab-scale production was then scaled up to 250g. Depending on the FR chemistry, fire tests including DIN EN 15025 protective clothes, FMVSS 302 automotive, DIN 4102-B2 fire performance are passed for cotton, wool, cotton/polyester and cotton/polyamid fabrics with loadings of 3-10 % (w/w) for textile finishing. Fire resistance is maintained after six home laundry wash cycles at 60 °C. Industrial production is now planned with abcr GmbH.

“Neue stickstoff- und phosphormodifizierte Verbindungen für den permanenten Flammschutz von Textilien via Sol-Gel-abcr GmbH GmbHtion”, W. Ali et al., DTNW (Deutsches Textilforschungszentrum Nord-West), 2020

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