Extraction of Collagen from Cattle Skin and Synthesis of Collagen Based Flame Retardant Composition and Introduction into Cellulosic Textile Material by Graft Copolymerization

The composition for flame retardant treatment of cellulosic textile materials is proposed. The composition comprises an acrylic emulsion as a film former and a binder, collagen as a binder and flame retardant component, boric acid and potassium persulfate for chemically binding the components to a textile material. A technological scheme for applying the composition to the material has been developed. The processes that occur when the temperature was applied to the treated material were studied and graft copolymerization of acrylic monomers with collagen and cellulose was carried out. Based on the results of IR and PMR spectroscopic studies of collagen, cellulose, initiator, monomers and graft copolymer, a mechanism for interaction of the components was proposed. In the interaction of potassium persulfate with collagen and cellulose, radical active centers are formed, through which the grafted polymer chains are initiated and grown. Active polymerization centers are formed in the nitrogen atom of the peptide group of collagen and in the oxygen atom of the hydroxyl group of cellulose. The obtained material was tested for fire resistance: the material was not ignited when exposed to combustion for 10 s; the mass loss was 4-8 %.

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