Preparation method of flame-retardant and antibacterial precursor fibers
A technology of antibacterial fiber and precursor, applied in the field of textile fiber manufacturing, to achieve good flame retardant and antibacterial functions, simple preparation method and low difficulty
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[0025] Example 1
[0026] A preparation method of flame-retardant antibacterial fiber precursor includes the following steps:
[0027] a) Weigh the raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 1.5 parts of flame retardant, 0.25 parts of antibacterial agent, 350 parts of organic solvent; flame retardant is 8wt% ammonium bicarbonate, 10wt% sodium bicarbonate, hydrogen carbonate Potassium 5wt%, diatomaceous earth 77wt%; antibacterial agent is aluminum phosphate 20wt%, calcium phosphate 10wt%, aluminum tripolyphosphate 70wt%; organic solvent is dimethyl sulfoxide;
[0028] The diatomaceous earth undergoes the following pretreatments before adding: the diatomaceous earth is pulverized to 1 micron, then sonicated in absolute ethanol solution for 10 seconds, then sonicated in saturated sodium bicarbonate solution for 1 minute, and finally washed with water 4 Times; control the temperature at 50℃ during ultrasonic treatment;
[0029] b) Mix and dis...
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[0033] Example 2
[0034] A preparation method of flame-retardant antibacterial fiber precursor includes the following steps:
[0035] a) Weigh the raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 2 parts of flame retardant, 0.3 part of antibacterial agent, 400 parts of organic solvent; flame retardant is 9wt% ammonium bicarbonate, 11wt% sodium bicarbonate, bicarbonate Potassium 6wt%, diatomaceous earth 74wt%; antibacterial agent is aluminum phosphate 25wt%, calcium phosphate 15wt%, aluminum tripolyphosphate 60wt%; organic solvent is N,N-dimethylformamide;
[0036] The diatomaceous earth undergoes the following pretreatments before adding: firstly crush the diatomaceous earth to 1.5 microns, then ultrasonically treat it in anhydrous ethanol solution for 200 seconds, then ultrasonically treat it in a saturated sodium bicarbonate solution for 20 minutes, and finally wash it with water 5 Times; the temperature is controlled to 60℃ during ultrason...
Example Embodiment
[0041] Example 3
[0042] A preparation method of flame-retardant antibacterial fiber precursor includes the following steps:
[0043] a) Weigh the raw materials according to the following parts by weight: 90 parts of polyacrylonitrile, 3 parts of flame retardant, 0.4 part of antibacterial agent, 450 parts of organic solvent; flame retardant is ammonium bicarbonate 10wt%, sodium bicarbonate 12wt%, hydrogen carbonate Potassium 8wt%, diatomaceous earth 70wt%; antibacterial agent is aluminum phosphate 28wt%, calcium phosphate 18wt%, aluminum tripolyphosphate 54wt%; organic solvent is dimethyl sulfoxide, N,N-dimethylformamide, N, A mixture of N-dimethylacetamide with a volume ratio of 1:1:1;
[0044] The diatomaceous earth undergoes the following pretreatments before adding: firstly crush the diatomaceous earth to 1.5 microns, then ultrasonically treat it in anhydrous ethanol solution for 400 seconds, then ultrasonically treat it in a saturated sodium bicarbonate solution for 40 minutes...
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