Production method of superabsorbent resin
A technology of superabsorbent resin and preparation method, which is applied in the direction of plant preservation, botany equipment and methods, application, etc. It can solve the problems of easy decomposition, no colloidal strength, and inability to promote plant growth, so as to promote root growth, The effect of promoting the development of technology
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Embodiment 1
[0026] The preparation method of the superabsorbent resin of embodiment 1 comprises the following steps:
[0027] (1) Under ice bath, slowly add 20.8g of 48wt% sodium hydroxide aqueous solution into a solution containing 30g of acrylic acid (sourced from Taiwan Plastic Industry Co., Ltd.), 3g of acrylamide (purchased from Taiwan Jingming Chemical Company) and 32.4g of 100mL Erlenmeyer flask of ionized water for neutralization to obtain a reaction monomer solution; wherein 60mol% of acrylic acid was neutralized into acrylate.
[0028] (2) Add 0.046 g of ethoxylated trimethylolpropane triacrylate (ethoxylated TMPTA) to the above reaction monomer solution and stir to obtain a reaction solution, which is kept at 20° C.
[0029] (3) Add 0.016g of L-ascorbic acid, 0.2g of sodium persulfate and 0.2g of 2,2'-azobis(2-amidinopropane) dihydrochloride to the above reaction solution to initiate the reaction, and after 1 hour of reaction, crude Super absorbent resin.
[0030] (4) Cut the...
Embodiment 2
[0033] The preparation method of Example 2 was the same as that of Example 1 except that the adenine in step (6) was changed to pyridoxine (purchased from ACROS).
Embodiment 3
[0035] Except that the consumption of the aqueous sodium hydroxide solution of this step (1) is changed to 12.2g (wherein the acrylic acid of 35mol% is neutralized as acrylate) and the consumption of the pyridoxine of this step (6) is changed to 0.1g, The preparation method of embodiment 3 is identical with embodiment 2.
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