ビス(2-クロロエチル)ビニルホスホナートのグラフト共重合による綿繊維の難燃加工

抄録

Graft copolymerization of bis (2-chloroethyl) vinylphosphonate (CEVP) with various vinyl monomers initiated with cerium (IV) ammonium nitrate onto cotton fabrics was studied. CEVP alone didn't polymerize in the presence of cellulose and Ce^IVion. Graft copolymers of CEVP-acrylamide (AAm)-vinylidene chloride (VDC), CEVP-AAm-vinyl chloride and CEVP-AAm-vinyl bromide onto cotton fabrics were prepared; AAm and vinyl halides were employed as nitrogen and halogen containing monomers. The cotton satin modified by grafting with these monomers was found to be satisfactory flame-retardant. Charred area and limited oxygen index of the grafted cotton satin consisted of 57.9% CEVP-AAm-VDC copolymeric branch were 30cm² and 32.9, respectively. The grafted cotton satin still conserved the flame-retardant property after 5 times laundry and 5 times drycleaning. Tear strength of the 48.0% CEVP-AAm-VDC grafted cotton satin retained 48% in warp and 56% in weft of those of the untreated fabric. Tensile strength of the grafted cotton satin enhanced to 118% in warp and 109% in weft.