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

Preparation method of coal ash/sodium polyacrylate absorbent material

A technology of sodium polyacrylate and water-absorbing materials, which is applied in the field of water-absorbing materials preparation, can solve the problems of superabsorbent resin application fields and application scale limitations, poor environmental compatibility, and high cost of superabsorbent resins, and achieve resource utilization and low cost Effect

Inactive Publication Date: 2015-05-27
余世浩
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Superabsorbent resin is a new type of functional polymer material with a three-dimensional cross-network structure. It can quickly absorb a large amount of water through hydration to form a gel, and has good water retention, so it is used in sanitary products, agriculture and gardening, and deserts. Prevention and greening and other fields, but the super absorbent resin made of pure acrylic acid has high cost and poor environmental compatibility, which limits the application field and application scale of super absorbent resin

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

specific Embodiment

[0008] Specific embodiments: the preparation process of the present invention includes two steps of fly ash pretreatment and composite material preparation, the pretreatment process of the fly ash is to use 800 ° C calcination of fly ash for 4 hours to remove carbon, and after calcination, vibratory grinding Fine to an average particle size of 12.12 μm; the composite material preparation process, weigh acrylic acid, according to the degree of neutralization of 90% (relative to the molar percentage of acrylic acid monomer), slowly drop the alkali solution into the acrylic acid, dissolve and stir to make it fully mixed Dissolve, add 0.2% (relative to the mass percentage of acrylic acid monomer) of crosslinking agent N, N,-methylenebisacrylamide, add 75% (relative to the mass percentage of acrylic acid monomer) of fly ash after dissolving, fully After stirring, perform ultrasonic dispersion until the solution has a certain viscosity, weigh 0.625% (relative to the mass percentage o...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method of a coal ash / sodium polyacrylate absorbent material, belongs to the field of preparation of absorbent materials, and provides a low-cost method for preparing an absorbent material employing coal ashes and sodium polyacrylate to solve the problem of high cost due to the fact that the absorbent material is prepared from simple polyacrylic acid as a raw material. According to the preparation method, the coal ash / sodium polyacrylate absorbent material is prepared by two steps, namely coal ash pretreatment and composite material preparation. According to the coal ash / sodium polyacrylate absorbent material prepared by the method, the water absorbent rate can reach over 80; meanwhile, resource utilization of the coal ashes is realized; the amount of acrylic acid is reduced; the cost is reduced; and the method has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of water-absorbing materials. Background technique [0002] Superabsorbent resin is a new type of functional polymer material with a three-dimensional cross-network structure. It can quickly absorb a large amount of water through hydration to form a gel, and has good water retention, so it is used in sanitary products, agriculture and gardening, and deserts. Prevention and greening and other fields, but the high water-absorbent resin made of pure acrylic acid has high cost and poor environmental compatibility, which limits the application field and application scale of the super-absorbent resin. Contents of the invention [0003] The purpose of the present invention is to provide a low-cost method for preparing water-absorbing materials using fly ash and polyacrylic acid. [0004] The present invention is realized through the following technical solutions: a preparation method of fly ash / sodium polya...

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): C08F220/06C08F222/38C08F2/44C08K11/00
Inventor 余世浩
Owner 余世浩