Method for preparing superabsorbent resin by graft copolymerization of carboxymethyl potato residue

A technology of superabsorbent resin and potato residue, which is applied in the field of preparation of superabsorbent resin, can solve problems such as environmental pollution and waste of resources, and achieve the effects of simple preparation method, cost saving, and reduced equipment requirements
CN104072669BActive Publication Date: 2018-04-06INNER MONGOLIA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INNER MONGOLIA UNIVERSITY
Publication Date
2018-04-06

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Abstract

The invention discloses a method for preparing super absorbent resin by grafting and copolymerizing carboxymethyl potato pulp. The main process is as follows: under ice-water bath cooling, carrying out neutralization reaction by using sodium hydroxide liquor and polymerization inhibitor-removed acrylic acid, adding neutralized liquor into a reaction container which contains carboxymethyl potato pulp, acrylamide, potassium persulfate, sodium hydrogen sulfite, N, N'- methylene bisacrylamide and deionized water for sufficiently mixing uniformly, stirring under nitrogen gas protection, heating in water bath, stopping stirring while heating to 25-45 DEG C, preserving heat for 2 hours in boiling water bath, then stopping ventilating nitrogen gas, taking out a product and shearing the product into small blocks, drying in an oven of 40 DEG C-60 DEG C until weight is constant, crushing to obtain a product. Compared with water-absorbent resin on the market, the super absorbent resin prepared by the method disclosed by the invention has water absorption capacity which is greatly improved, and low preparation cost, and therefore, the method has a very good application prospect in water retention of arid area soil, desert prevention and treatment, gardening of agriculture and forestry, and the like.
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Description

technical field

[0001] The invention relates to a preparation method of a superabsorbent resin used in the fields of agriculture, forestry, horticulture and the like. The super absorbent resin has been widely used in the above-mentioned fields. The product of the present invention greatly reduces the cost due to the rational use of discarded potato residues, and the application of redox initiators greatly reduces the polymerization temperature, so that the cost of the prepared super absorbent resin is low, and the product The excellent performance makes it have broad application prospects in the above-mentioned fields. Background technique

[0002] Super absorbent resin is a kind of functional polymer material that has developed rapidly in recent years. It not only has high water absorption, but also is not easy to lose water even under pressure after absorbing water, so it is widely used in agriculture, gardening and desert management and other fields.

[0003] Starch-bas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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