Water-retaining agent colloid and preparation method thereof
A technology of water-retaining agent and colloid, applied in the direction of chemical instruments and methods, applications, organic fertilizers, etc., to achieve the effect of simple production process, wide application range and good mechanical properties
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Embodiment 1
[0020] The water retaining agent colloid of the present invention is calculated in parts by weight, and its composition consists of: 100 parts of chitosan acetate solution, 100 parts of acrylamide solution, 200 parts of acrylic acid solution, 10 parts of N, N'-methylenebisacrylamide solution and 6 parts cerium ammonium nitrate.
[0021] Preparation method: in parts by weight, 100 parts of chitosan acetate solution, 100 parts of acrylamide solution, 200 parts of acrylic acid solution and 10 parts of N, N'-methylenebisacrylamide solution are directly mixed in a four-necked bottle, Stir evenly, blow nitrogen into the mixed solution at 4 liters / minute, and remove the air in the mixed solution. Then slowly increase the temperature of the mixed solution to 40°C at 5°C / 10 minutes, and keep it for 40 minutes, then add 6 parts of ammonium cerium nitrate, and slowly increase the temperature of the mixed solution to 80°C at 5°C / 10 minutes, stir evenly, and the solution Viscous rod climb...
Embodiment 2
[0026] The difference with Example 1 is: by weight, its composition consists of: 120 parts of chitosan acetate solution, 80 parts of acrylamide solution, 200 parts of acrylic acid solution, 10 parts of N, N'-methylene dipropylene dilute amide solution and 4 parts ceric ammonium nitrate.
[0027]Preparation method: in parts by weight, 120 parts of chitosan acetate solution, 80 parts of acrylamide solution, 200 parts of acrylic acid solution and 10 parts of N, N'-methylenebisacrylamide solution are directly mixed in a four-necked bottle, Stir evenly, blow nitrogen into the mixture at 2 liters per minute, and remove the air in the mixture. Then slowly raise the temperature of the mixed solution to 40 DEG C at 10 DEG C / 5 minutes, make it last for 30 minutes, then add 4 parts of cerium ammonium nitrate, stir evenly, and slowly raise the temperature of the mixed solution to 70 DEG C at 10 DEG C / 5 minutes again, the solution When sticky rod-climbing phenomenon occurs, transfer it to...
Embodiment 3
[0031] The difference with Example 1 is: by weight, its composition consists of: 150 parts of chitosan acetate solution, 50 parts of acrylamide solution, 300 parts of acrylic acid solution, 15 parts of N, N'-methylene dipropylene dilute amide solution and 5 parts ceric ammonium nitrate.
[0032] Preparation method: in parts by weight, 150 parts of chitosan acetate solution, 50 parts of acrylamide solution, 300 parts of acrylic acid solution and 15 parts of N, N'-methylenebisacrylamide solution are directly mixed in a four-necked bottle, Stir evenly, blow nitrogen into the mixed solution at 7 liters / minute, and remove the air in the mixed solution. Then slowly raise the temperature of the mixed solution to 40°C at 6°C / 8 minutes, and keep it for 60 minutes, then add 5 parts of ammonium cerium nitrate, stir evenly, and slowly raise the temperature of the mixed solution to 70°C at 6°C / 8 minutes, the solution When sticky rod-climbing phenomenon occurs, transfer it to a tray, dry a...
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