Boric acid monoglyceride monoacrylate superabsorbent resin and preparation method thereof

Abstract

The invention discloses superabsorbent resin. The superabsorbent resin comprises hydroxypropyl methyl cellulose, acrylic acid, sodium hydroxide, ammonium persulfate, sodium hydrogen sulfite, polyethylene glycol diacrylate and boric monoglyceride monoacrylate, wherein the mass ratio of the acrylic acid to the hydroxypropyl methyl cellulose is (4-9):1, the mass ratio of the acrylic acid to the sodium hydroxide is (0.6-1.4):1; the mass ratio of the acrylic acid to the ammonium persulfate is (16.7-500):1, the mass ratio of the acrylic acid to the sodium hydrogen sulfite is (16.7-500):1; the mass ratio of the acrylic acid to the polyethylene glycol diacrylate is (200-1000):1; the mass ratio of the acrylic acid to the boric monoglyceride monoacrylate is (1-100):1. The superabsorbent resin can bedirectly mixed with a cultivation substrate or soil, slowly releases water, has a long-lasting effect, and can increase the moisture content of the soil; the superabsorbent resin can slowly release boron element to increase the boron content of the substrate or the soil, has a good effect of promoting growth and development of crops, and achieves the purposes of improving the soil structure and retaining water and a fertilizer.

Description

technical field [0001] The invention belongs to the technical field of agricultural superabsorbent resins, and in particular relates to a preparation material and a preparation method of agricultural monoglyceride monoacrylate superabsorbent resins. Background technique [0002] my country is one of the countries with extreme water shortage in the world. my country is also a large agricultural country, and agricultural water accounts for 70% of the country's water consumption. In addition, in the current agricultural production process in our country, the use of water resources is still dominated by extensive methods, which not only has a low utilization rate, but also causes a large amount of water resources. waste. In recent years, the contradiction between supply and demand of water resources in my country has become more prominent, and drought and water shortage have become the main limiting factors restricting the sustainable development of agriculture. The main way to...

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Problems solved by technology

[0004] The object of the present invention is to solve the problems of boron shortage in soil, poor water retention capacity of soil, and poor salt tolerance and stability of starch-type superabsorbent resin, and propose a method that can improve soil structure, has good salt tolerance and is not easy to degrade Agricultural safe superabsorbent resin that provides trace boron element for soil, has excellent water absorption and water retention performance, and promotes crop growth and development, and preparation method thereof

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