title: Flame retardant finishing of cotton fabric based on synergistic compounds containing boron and nitrogen.
abstract: Boric acid and compound containing nitrogen, 2,4,6-tri[(2-hydroxy-3-trimethyl-ammonium)propyl]-1,3,5-triazine chloride (Tri-HTAC) were used to finish cotton fabric. The flame retardant properties of the finished cotton fabrics and the synergetic effects of boron and nitrogen elements were investigated and evaluated by limited oxygen index (LOI) method. The mechanism of cross-linking reaction among cotton fiber, Tri-HTAC, and boric acid was discussed by FTIR and element analysis. The thermal stability and surface morphology of the finished cotton fabrics were investigated by thermogravimetric analysis (TGA) and scanning electron microscope (SEM), respectively. The finishing system of the mixture containing boron and nitrogen showed excellent synergistic flame retardancy for cotton fabric. The cotton fabric finished with mixture system had excellent flame retardancy. The LOI value of the treated cotton fabric increased over 27.5. Tri-HTAC could form covalent bonds with cellulose fiber and boric acid. The flame retardant cotton fabric showed a slight decrease in tensile strength and whiteness. The surface morphology of flame retardant cotton fiber was smooth.
authors.affiliation: College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China. klxie@dhu.edu.cn
authors.forename: Kongliang
authors.initials: K
authors.lastname: Xie
authors.forename: Aiqin
authors.initials: A
authors.lastname: Gao
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D001888:Boric Acids / Q000737:chemistry*; D032561:Cotton Fiber; D005411:Flame Retardants; D055585:Physical Phenomena; D013499:Surface Properties; D013696:Temperature; D013818:Thermogravimetry; D014227:Triazines / Q000737:chemistry*
chemical_list: C587253:2,4,6-tris(2-hydroxy-3-trimethylaminopropyl)-1,3,5-triazine; D001888:Boric Acids; D005411:Flame Retardants; D014227:Triazines; C032688:boric acid
keywords: Compound containing boron; Cotton; Flame retardant; LOI; Synergistic property