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Process formula for synthesizing super absorbent resin with high kalium content by using potato starch phosphate as raw material

A technology of starch phosphate ester and superabsorbent resin, which is applied in the field of process formulation for synthesizing high potassium content superabsorbent resin, can solve the problems such as mildewing of gel, loss of water retention capacity, gel dissolution phenomenon, etc., and achieves good coagulation. The effect of gel state, increased income, high gel strength

Inactive Publication Date: 2011-03-16
INNER MONGOLIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gel strength after water absorption is low, especially under the condition of light or heating, it is prone to gel dissolution, and the gel after water absorption is prone to mildew due to the existence of starch skeleton, thus losing its water retention capacity, etc.

Method used

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  • Process formula for synthesizing super absorbent resin with high kalium content by using potato starch phosphate as raw material
  • Process formula for synthesizing super absorbent resin with high kalium content by using potato starch phosphate as raw material
  • Process formula for synthesizing super absorbent resin with high kalium content by using potato starch phosphate as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Weigh 9.3g of potassium hydroxide, measure 42.0mL of deionized water, and prepare a potassium hydroxide solution, and neutralize 30.0g of acrylic acid from which the polymerization inhibitor has been removed under the conditions of cooling and stirring in an ice-water bath. Weigh 3.0g of potato starch phosphate, 60mg of potassium persulfate and 8mg of N,N'-methylenebisacrylamide, measure 15.0mL of deionized water, and mix the above raw materials with neutralized acrylic acid and its potassium salt solution Mix and stir at room temperature for one hour until well mixed. Introduce nitrogen and heat with stirring, control the heating rate, increase the temperature of the water bath slowly, and allow the reaction to fully proceed, and stop stirring when the temperature reaches 60°C. Thereafter, the temperature was gradually raised. When the temperature of the water bath was 90°C-97°C, the reaction was continued for 1-2 hours in this temperature range, the nitroge...

Embodiment 2

[0018] Embodiment 2: take by weighing 2.7g potato starch phosphate, other experimental conditions are identical with embodiment 1, and product absorption deionized water rate is 1420g / g.

Embodiment 3

[0019] Embodiment 3: take by weighing 2.5g potato starch phosphate, other experimental conditions are identical with embodiment 1, and product absorption deionized water rate is 1450g / g.

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Abstract

The invention discloses a process formula for synthesizing and super absorbent resin with high kalium content by using potato starch phosphate as a raw material. Compared with the similar products, the super absorbent resin prepared by the formula has high water absorption capacity and good gel strength, has high content of kalium element, and plays an important role in combating drought and protecting seedling, increasing both production and income, growing plants and other aspects for soils in drought areas.

Description

technical field [0001] The invention relates to a technological formula for synthesizing high-potassium superabsorbent resin with potato starch phosphate, acrylic acid and potassium hydroxide as main raw materials. This kind of superabsorbent resin with a large amount of absorbed or bound water has a wide range of uses in agriculture, physiological hygiene, etc., especially in the field of agriculture, such as drought resistance and seedling protection, increased production and income, soil improvement, seedling transplanting, etc. Prospect, the product of the present invention is rich in potassium element necessary for plant growth, so the application prospect is broader. Background technique [0002] Water resources play a very important role in the development of various fields of industry, agriculture and national economy. In recent years, the issue of water resources has become a global issue of common concern. my country is seriously deficient in water resources, and...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/06C08F222/38C08B31/06
Inventor 温国华吴波张伟杜青慧张玉辉黄海波刘晓辉张思思
Owner INNER MONGOLIA UNIVERSITY
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