Preparation method of high-water solubility polyacrylamide
一种聚丙烯酰胺、丙烯酰胺的技术,应用在水溶性高分子材料合成领域,能够解决操作步骤繁琐、制备方法复杂、处理不当等问题,达到简化工艺流程、制备方法简单、反应完全的效果
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preparation example Construction
[0043] The preparation method of highly water-soluble polyacrylamide specifically comprises the following steps:
[0044] S101: preparing the same water-soluble raw material to form a composite initiator;
[0045] S102: Prepare acrylamide and benzoyl peroxide again for polymerization to form auxiliary materials;
[0046] S103: In the three-necked bottle, dissolve the auxiliary materials in distilled water, and continuously inject nitrogen gas into the three-necked bottle, and control it within a reasonable range of time, and then add benzoyl peroxide in a reasonable range in real time until propylene is formed Amide solution;
[0047] S104: Connect one of the ports of the three-necked bottle to a reflux condenser, install a stirrer on the middle port of the three-necked bottle, and carry out stirring and reflux. At the same time, the water bath is heated to a reasonable temperature range to start the reaction, and the reaction lasts for three Nitrogen gas is passed into the ...
specific Embodiment 1
[0061] 1. Dissolve 15 grams of ammonium persulfate in 200 ml of water;
[0062] 2. Dissolve 20 grams of acrylamide in 60 milliliters of water, add 0.3 grams of nano-silica and 15 milliliters of ammonium persulfate solution, and stir for 20 minutes with a stirring bar;
[0063] 3. Pour the mixture into a plastic bottle, place it in a vacuum drying oven at 80 degrees Celsius for 6 to 8 minutes, open the vacuum valve, pump the pressure in the oven to 0.21 MPa, and react for 5 hours;
[0064] 4. Put the product in an oven at 85 degrees Celsius for 4 to 5 hours, take it out, cut it into small pieces, put it in an oven at 85 degrees Celsius until it is dry, take it out and crush it.
specific Embodiment 2
[0066] 1. Dissolve 15 grams of ammonium persulfate in 200 ml of water;
[0067] 2. Dissolve 25 grams of acrylamide in 65 milliliters of water, add 0.4 grams of nano-silica and 20 milliliters of ammonium persulfate solution, and stir for 30 minutes with a stirring bar;
[0068] 3. Pour the mixture into a plastic bottle, place it in a vacuum drying oven at 80 degrees Celsius for 6 to 8 minutes, open the vacuum valve, pump the pressure in the oven to 0.21 MPa, and react for 5 hours;
[0069] 4. Put the product in an oven at 85 degrees Celsius for 4 to 5 hours, take it out, cut it into small pieces, put it in an oven at 85 degrees Celsius until it is dry, take it out and crush it.
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