Preparation method of cotton-based antibacterial composite fabric
A composite fabric, cotton-based technology, applied in the direction of repelling fibers to liquids, biochemical fiber treatment, textiles and paper making, etc. The effect of water absorption and high sterilization performance
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[0021] Example 1:
[0022] The specific preparation process of the hydrophobic antibacterial coating agent is as follows:
[0023] ①Add 10g of diphenyl silicon diol to 170mL of acetone solution, heat up to 100-110°C and stir and mix for 20-30 minutes, then add 2.1g of p-toluenesulfonic acid and 7.2g of cis-aconitic anhydride, and heat up to 250- Reflux at 260°C for 20-22 hours to obtain a polymer solution;
[0024] ②Then the temperature in the reaction vessel was lowered to 90-95°C, and 7.6g azobisisobutyronitrile and 15.7g allyl mercaptan were added to the reaction vessel at the same time, stirred and refluxed for 1-2h and then heated to 120-130°C Reflux for 4-5h to obtain a hydrophobic antibacterial coating.
Example Embodiment
[0025] Example 2:
[0026] The specific preparation process of the antibacterial finishing agent is as follows:
[0027] Step 1: Add 11g of resorcinol to 150mL of water, while adding hydrochloric acid to it to adjust the pH=1, then add 8.1g of 37% formaldehyde solution and 16.7g of acetylhydrazine trimethyl chloride to the reaction vessel The temperature is raised to 60-70°C and the reaction is stirred for 10-12 hours, and then the solvent is evaporated and washed to neutrality to obtain phenolic hydroxyammonium chloride;
[0028] Step 2: Add 10g of the phenolic hydroxyammonium chloride prepared in step 1 to 80mL of water and stir to dissolve, then adjust the pH of the solution to 13, then add 3.5g of a 37% formaldehyde solution to it, and heat to 50-60℃ Stir the reaction for 2-3h, then add 6.2g of 37% formaldehyde solution to the reaction vessel, heat to 100-110℃ and reflux for 5-6h, then perform vacuum distillation to remove the solvent and unreacted completely Formaldehyde to ob...
Example Embodiment
[0030] Example 3:
[0031] The specific preparation process of the antibacterial finishing agent is as follows:
[0032] Step 1: Add 11g of resorcinol to 150mL of water, while adding hydrochloric acid to it to adjust the pH=1, then add 8.1g of 37% formaldehyde solution and 16.7g of acetylhydrazine trimethyl chloride to the reaction vessel The temperature is raised to 60-70°C and the reaction is stirred for 10-12 hours, and then the solvent is evaporated and washed to neutrality to obtain phenolic hydroxyammonium chloride;
[0033] Step 2: Add 10g of the phenolic hydroxyammonium chloride prepared in step 1 to 80mL of water and stir to dissolve, then adjust the pH of the solution to 13, then add 3.5g of a 37% formaldehyde solution to it, and heat to 50-60℃ Stir the reaction for 2-3h, then add 6.2g of 37% formaldehyde solution to the reaction vessel, heat to 100-110℃ and reflux for 5-6h, then perform vacuum distillation to remove the solvent and unreacted completely Formaldehyde to ob...
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