Unlock instant, AI-driven research and patent intelligence for your innovation.

Starch/acrylic acid composite super absorbent resin preparation method

A technology of super absorbent resin and acrylic acid, applied in the field of preparation of super absorbent resin, can solve the problems of complexity, three wastes, unfavorable environment, etc., and achieve the effects of simple preparation method, excellent salt resistance and low price

Active Publication Date: 2015-05-20
江苏科德宝建筑节能科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in terms of production technology, the chemical grafting (branch copolymerization) process is still very complicated, and there are more three wastes generated during production, which is not good for the environment.

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare raw materials according to the following mass ratio: 100 parts of acrylic acid; 20 parts of soluble starch; 15 parts of sodium alginate; 30 parts of acrylamide; 0.1 part of potassium persulfate; 5 parts of kaolin; 10 parts of potassium hydroxide solution;

[0022] Stir acrylic acid, soluble starch, potassium hydroxide solution and sodium alginate evenly at room temperature, and react for 30 minutes to obtain a polymerization solution;

[0023] Add acrylamide, potassium persulfate, and kaolin to the polymerization solution, stir evenly, and then put it in an oven at 150°C for 5 hours. The obtained blocky product is pulverized and sieved to obtain a super absorbent resin.

Embodiment 2

[0025] Prepare raw materials according to the following mass ratio: 100 parts of acrylic acid; 25 parts of soluble starch; 10 parts of sodium alginate; 40 parts of acrylamide; 0.2 parts of potassium persulfate; 6 parts of kaolin; 12 parts of magnesium hydroxide solution;

[0026] Stir acrylic acid, soluble starch, magnesium hydroxide solution and sodium alginate evenly at room temperature, and react for 30 minutes to obtain a polymerization solution;

[0027] Add acrylamide, potassium persulfate, and kaolin to the polymerization solution, stir evenly, and then put it in an oven at 150°C for 5 hours. The obtained blocky product is pulverized and sieved to obtain a super absorbent resin.

Embodiment 3

[0029] Prepare raw materials according to the following mass ratio: 100 parts of acrylic acid; 24 parts of soluble starch; 12 parts of sodium alginate; 35 parts of acrylamide; 0.5 parts of potassium persulfate; 8 parts of kaolin; 15 parts of sodium hydroxide solution;

[0030] Stir acrylic acid, soluble starch, sodium hydroxide solution and sodium alginate evenly at room temperature, and react for 30 minutes to obtain a polymerization solution;

[0031] Add acrylamide, potassium persulfate, and kaolin to the polymerization solution, stir evenly, and then put it in an oven at 150°C for 5 hours. The obtained blocky product is pulverized and sieved to obtain a super absorbent resin.

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
Login to View More

PUM

PropertyMeasurementUnit
Water absorption rateaaaaaaaaaa
Login to View More

Abstract

The invention discloses a starch / acrylic acid composite super absorbent resin preparation method, and is characterized in that starch is added in a polymerization system of sodium alginate and acrylic acid, starch is taken as a cross-linking agent of sodium alginate and acrylic acid to prepare the super absorbent resin with excellent salt tolerance performance, wherein the water absorbent rate is 890-960g / g, the normal saline absorbent rate is 98-110g / g, and the water absorbent performance is excellent.

Description

technical field [0001] The invention relates to a preparation method of a superabsorbent resin, in particular to a preparation method of a superabsorbent resin prepared by compounding starch and acrylic acid. Background technique [0002] Super absorbent polymer (SAP) is a new type of functional polymer material. Due to a series of characteristics such as high water absorption performance, high water retention performance, repeated use, and safety, it has been widely used in agriculture, horticulture, desert transformation, medicine, industry, and building materials in the past 30 years. In the past ten years, many new achievements have been made in the research, production and application development of superabsorbent resins, and the application fields are also expanding. There are more and more types of superabsorbent resins, and there are many classification methods from different angles such as raw material sources, structural performance characteristics, and produc...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F251/00C08F2/44C08K3/34
Inventor 万宝林
Owner 江苏科德宝建筑节能科技有限公司