Environment-friendly flame-retardant textile fabric

[0047] Antibacterial fiber is prepared by the following method:

[0048] (1) Add cellulose acetate into N,N-dimethylacetamide according to the solid-to-liquid ratio of 1g:20mL, stir at 150r / min at a constant temperature of 65°C to dissolve completely, add pyridine dropwise (the addition of pyridine The amount is 0.05% of the cellulose acetate mass);

[0049] (2) Transfer the above mixture to an ice-water bath, and when the temperature of the system drops to 0° C., slowly add sorbyl chloride dropwise under ice-water bath conditions (the amount of sorbyl chloride added is 40% of the cellulose acetate mass), and the dropwise After the last 15 minutes, the system was moved into a 65°C oil bath and stirred for 24 hours. After the reaction, the product was washed with deionized water and absolute ethanol until neutral to obtain modified acetate fiber;

[0050] (3) Dissolve modified cellulose acetate in N,N-dimethylacetamide, prepare a spinning solution with a mass fraction of 6%, an

[0052] (1) Add cellulose acetate into N,N-dimethylacetamide according to the solid-to-liquid ratio of 1g:20mL, stir at 150r / min at a constant temperature of 65°C to dissolve completely, add pyridine dropwise (the addition of pyridine The amount is 0.05% of the cellulose acetate mass);

[0053] (2) Transfer the above mixture to an ice-water bath, and when the temperature of the system drops to 0° C., slowly add sorbyl chloride dropwise under ice-water bath conditions (the amount of sorbyl chloride added is 40% of the cellulose acetate mass), and the dropwise After the last 15 minutes, the system was moved into a 65°C oil bath and stirred for 24 hours. After the reaction, the product was washed with deionized water and absolute ethanol until neutral to obtain modified acetate fiber;

[0054] (3) Dissolve modified cellulose acetate in N,N-dimethylacetamide, prepare a spinning solution with a mass fraction of 6%, and add cellulose acetate (the amount of cellulose acetate added is t

[0063] Flame retardant fibers are prepared by the following methods:

[0064] (1) Add terminal hydrogen-containing silicone oil and allylamine into a four-necked flask equipped with a thermometer, condenser, and magnetic stirrer according to the ratio of the amount of substances of 1:2.2, heat and stir slowly and raise the temperature to 50°C, Add catalyst chloroplatinic acid solution (the mass fraction of chloroplatinic acid solution is 6%, the mass of the added chloroplatinic acid solution is 0.1% of the total mass of terminal hydrogen-containing silicone oil and allylamine), then slowly heat up to 85°C, React for 4 hours, then obtain the flame retardant modifier through suction filtration and rotary evaporation;

[0065] (2) immerse the viscose fiber in an aqueous sulfuric acid solution with a mass fraction of 5%, soak it for 30 min at 40° C., then rinse the viscose fiber with distilled water until the lotion is neutral, and dry the viscose fiber to constant weight;

[0066]