Method for preparing novel quaternary ammonium salt copolymer/nanometer ZnO composite antimicrobial for fabric
A technology of quaternary ammonium salt copolymer and compound antibacterial agent, which can be used in textiles, papermaking, fiber processing, etc., and can solve the problems of easy hydrolysis, poor heat resistance, and low sterilization rate.
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Embodiment 1
[0034] The first step is to prepare quaternary ammonium salt copolymer by free radical polymerization in aqueous solution. The method is to dissolve 4.1 g of ammonium persulfate in 10 g of water to prepare an initiator solution, then heat a 250 ml three-necked flask to 75 ° C in a water bath, and start stirring with a stirrer. The speed is 300rpm, open the condensing device, while stirring, add 64g of dimethyl diallyl ammonium chloride aqueous solution with a mass fraction of 60%, 0.8g of methacrylic acid, 0.26g of allyl glycidyl ether, initiator persulfuric acid Ammonium aqueous solution 4.7g, 15g water, stirred for 9 minutes, then added methacrylic acid 0.7g, allyl glycidyl ether 0.3g, initiator ammonium persulfate aqueous solution 4.7g, 25g water, stirred for 13 minutes, then added methacrylic acid 0.8g, allyl glycidyl ether 0.3g, initiator ammonium persulfate aqueous solution 4.7g, 28.74g water, keep warm and stir for 3.5h, cool down to room temperature, stop stirring, clos...
Embodiment 2
[0038] The first step is to prepare quaternary ammonium salt copolymer by free radical polymerization in aqueous solution. The method is to dissolve 5.3 g of ammonium persulfate in 10 g of water to prepare an initiator solution, then heat a 250 ml three-necked flask to 80 ° C in a water bath, and start stirring with a stirrer. The speed is 350rpm, open the condensing device, while stirring, add 68g of dimethyl diallyl ammonium chloride aqueous solution with a mass fraction of 60%, 0.7g of methacrylic acid, 0.3g of allyl glycidyl ether, initiator persulfuric acid Ammonium aqueous solution 5.1g, 11g water, stirred for 10min, then added methacrylic acid 0.8g, allyl glycidyl ether 0.27g, initiator ammonium persulfate aqueous solution 5.1g, 25g water, stirred for 13min, then added methacrylic acid 0.75g, allyl glycidyl ether 0.35g, initiator ammonium persulfate aqueous solution 5.1g, 27.53g water, keep warm and stir for 4 hours, cool down to room temperature, stop stirring, and clos...
Embodiment 3
[0042]The first step is to prepare quaternary ammonium salt copolymer by free radical polymerization in aqueous solution. The method is to dissolve 4.4 g of potassium persulfate in 10 g of water to prepare an initiator solution, then heat a 250 ml three-necked flask to 85 ° C in a water bath, and start stirring with a stirrer. The speed is 350rpm, open the condensing device, and add 69g of dimethyl diallyl ammonium chloride aqueous solution with a mass fraction of 60% while stirring, 0.8g of methacrylic acid, 0.28g of allyl glycidyl ether, initiator persulfuric acid Potassium aqueous solution 4.8g, 15g water, stirring reaction for 10min, then add methacrylic acid 0.7g, allyl glycidyl ether 0.3g, initiator potassium persulfate aqueous solution 4.8g, 21g water, stirring reaction for 13min, then add methacrylic acid 0.75g, 0.35g allyl glycidyl ether, 4.8g aqueous solution of potassium persulfate initiator, 27.42g water, insulated and stirred for 4 hours, cooled to room temperature...
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