Preparation method of anti-fouling and sun-resistant composite functional fabric, fabric prepared through preparation method and clothes containing fabric
A composite function and fabric technology, applied in the field of materials, to achieve the effect of good anti-fouling and anti-sun function, good soaping fastness
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[0048] Specifically, the preparation method of the present invention comprises the following steps:
[0049] (1) Prepare microcrystal-doped polydopamine solution: dissolve dopamine (preferably use water as a solvent, reduce the use of organic solvents, and be more environmentally friendly); then, under stirring conditions, add polysaccharide microcrystals to obtain polydopamine solution doped with polysaccharide microcrystals;
[0050] Preferably, the polydopamine doped with polysaccharide microcrystals has a concentration of 1-5 g / L;
[0051] In this step, the raw material polysaccharide microcrystals are obtained by oxidation of polysaccharides such as cellulose fibers, chitosan, chitin, or starch;
[0052] Preferably, the polysaccharide microcrystals are obtained by oxidizing polysaccharides such as cellulose fibers, chitosan, chitin, or starch through periodic acid and / or periodate (more preferably with periodic acid obtained by oxidation of salt), and the obtained polys...
Embodiment 1
[0077] 0.1 g of dopamine is dissolved in 100 ml of aqueous solution, and 0.1 polysaccharide microcrystals are added under stirring conditions to obtain a polydopamine solution doped with microcrystals.
[0078] Soak the silk fabric in the dopamine solution doped with microcrystals at a bath ratio of 1:25. At 30°C, the color of the solution gradually changes from colorless to wine red and finally black, then shake and stir at a constant temperature for 0.5-2 hours. , take out and wash the fabric with distilled water and ethanol to obtain a polydopamine-modified silk fabric with microcrystalline doping on the surface.
[0079] The obtained modified silk fabric is placed in a mixed solution containing butyl titanate, isopropanol, nitric acid and deionized water with a bath ratio of 1:50;
[0080] Wherein, the molar ratio of butyl titanate to isopropanol is 1:1.4, the volume ratio of isopropanol to deionized water is 7:3, the volume ratio of nitric acid to deionized water is 1:75,...
Embodiment 2
[0083] 0.1 g of dopamine is dissolved in 100 ml of aqueous solution, and 0.2 polysaccharide microcrystals are added under stirring conditions to obtain a polydopamine solution doped with microcrystals.
[0084] Soak the woolen fabric in the dopamine solution doped with microcrystals at a bath ratio of 1:25. At 40°C, the color of the solution gradually changes from colorless to wine red and finally black, then shake and stir at a constant temperature for 0.5-2 hours. , Take out and wash the fabric with distilled water and ethanol to obtain a polydopamine-modified wool fabric with microcrystalline doping on the surface.
[0085] The modified wool fabric is placed in a mixed solution containing butyl titanate, isopropanol, nitric acid and deionized water with a bath ratio of 1:50;
[0086] Wherein the mol ratio of butyl titanate to isopropanol is 1:1.4, the volume ratio of isopropanol to deionized water is 5:5, the volume ratio of nitric acid to deionized water is 1:75, and the p...
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