Imparting Fire Retardancy and Smoke Suppression to Leather during Tanning Processes.

Autor:	Sanchez Olivares G; CIATEC A.C., Omega 201, Colonia Industrial Delta, Léon, Gto37545, Mexico., Battig A; Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205Berlin, Germany., Goller SM; Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205Berlin, Germany., Rockel D; Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205Berlin, Germany., González VR; CIATEC A.C., Omega 201, Colonia Industrial Delta, Léon, Gto37545, Mexico., Schartel B; Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205Berlin, Germany.
Jazyk:	angličtina
Zdroj:	ACS omega [ACS Omega] 2022 Nov 22; Vol. 7 (48), pp. 44156-44169. Date of Electronic Publication: 2022 Nov 22 (Print Publication: 2022).
DOI:	10.1021/acsomega.2c05633
Abstrakt:	Leather is considered a luxury good when used in seating and upholstery. To improve safety, flame retardancy in leather is usually achieved through various finishing processes such as spray or roller coating. These treatments require processing steps that cost time and are labor-intensive. One avenue to achieving flame retardancy in leather is to add flame retardants during the tanning process. However, the influence on flame retardancy exerted by specific intumescent additives specifically added during leather tanning has yet to be investigated. This work explores the roles played by intumescent additive compounds in flame retarding leather when they are added during tanning instead of applied as a coating. Via a systematic investigation of various compound mixtures, the flame retardant effects in the condensed and the gas phases are elucidated. The results show a strong impact of melamine in the gas phase and of polyphosphates in the condensed phase. Their impact was quantified in fire and smoke analysis, showing a 14% reduction in the peak of heat release rate, strongly reduced burning lengths, and a 20% reduction in total smoke release compared to nontreated leather. These results illuminate the key role played by specific compounds in the flame retardancy of leather, particularly when they are added specifically during the tanning process instead of being applied as a coating. This method has great potential to reduce processing steps, lower costs, and improve material safety. Competing Interests: The authors declare no competing financial interest. (© 2022 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu