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Preparation method of compound water gel material

A technology of composite hydrogels and compounds, applied in chemical instruments and methods, other chemical processes, etc., to achieve the effects of high adsorption efficiency, good water absorption performance, and high application value

Active Publication Date: 2015-10-07
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, composite gels prepared from cellulose chitosan, starch and other polymer compounds have been studied more, while composite smart gels prepared from other sugar compounds still need to be further studied.

Method used

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  • Preparation method of compound water gel material

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Experimental program
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Effect test

Embodiment 1

[0018] Dissolve 0.2 g of glucose in 1 mL of DMSO, add 0.04 g of pyridine and 0.1 g of glycidyl methacrylate in sequence, after complete dissolution, stir and react in an oil bath at 40 °C for 18 h to obtain a methacrylated glucose solution. Dissolve 0.2g of xylose in 1mL of DMSO, add 0.04g of pyridine and 0.2g of glycidyl methacrylate in sequence, after complete dissolution, stir and react in an oil bath at 40°C for 18 h to obtain a methacrylated xylose solution . After cooling the two reaction solutions, mix them, add 0.8g of acrylic acid, 0.8g of acrylamide, 0.02g of N,N-methylenebisacrylamide, 0.02g of tetramethylethylenediamine, and add 5 mL of deionized water. Heat in a water bath at 70°C to completely dissolve each component. Then add 0.02g ammonium persulfate, after reacting for 2 h, take out the gel, first wash it with deionized water and cut it into small pieces, then soak it in deionized water for 7 days, replace the deionized water every 6 h, and finally put The p...

Embodiment 2

[0021] Dissolve 0.4 g of glucose in 1 mL of DMSO, add 0.08 g of pyridine and 0.4 g of glycidyl methacrylate in sequence, and after complete dissolution, stir and react in an oil bath at 40 °C for 18 h to obtain a methacrylated glucose solution. Dissolve 0.2g of xylose in 1mL of DMSO, add 0.04g of pyridine and 0.3g of glycidyl methacrylate in sequence, after complete dissolution, stir and react in an oil bath at 40°C for 18 h to obtain a methacrylated xylose solution . After cooling the two reaction solutions, mix them, add 0.8g of acrylic acid, 0.8g of acrylamide, 0.024g of N,N-methylenebisacrylamide, 0.024g of tetramethylethylenediamine, and add 5 mL of deionized water, Heat in a 70°C water bath to dissolve the components completely. Then add 0.024g ammonium persulfate, after reacting for 2 h, take out the gel, first wash with deionized water and cut into small pieces, then soak in deionized water for 7 days, replace the deionized water every 6 h, and finally put The produc...

Embodiment 3

[0024]Dissolve 0.6 g of glucose in 1 mL of DMSO, add 0.12 g of pyridine and 1.2 g of glycidyl methacrylate in sequence, after complete dissolution, stir and react in an oil bath at 40 °C for 18 h to obtain a methacrylated glucose solution. Dissolve 0.2 g of xylose in 1 mL of DMSO, add 0.04 g of pyridine and 0.45 g of glycidyl methacrylate in sequence, after complete dissolution, stir and react in an oil bath at 40 °C for 18 h to obtain a methacrylated xylose solution . After cooling the two reaction solutions, mix them, add 0.8 g of acrylic acid, 0.8 g of acrylamide, 0.026 g of N,N-methylenebisacrylamide, 0.026 g of tetramethylethylenediamine, and add 5 mL of deionized water, Heat in a 70°C water bath to dissolve the components completely. Thereafter, 0.026 g of ammonium persulfate was added, and after 2 h of reaction, the gel was taken out, washed with deionized water and cut into small pieces, then soaked in deionized water for 7 days, and the deionized water was replaced e...

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Abstract

A preparation method of a compound water gel material comprises the following steps of respectively dissolving two kinds of monosaccharide or oligosaccharide compounds in organic solvent; adding catalyst and glycidyl methacrylate in the organic solvent; performing reaction for 20-30 hours at the temperature of 40-60 DEG C to obtain carbohydrate reaction liquors acylated by methacrylonitrile respectively; mixing the carbohydrate reaction liquors after the carbohydrate reaction liquors are cooled down to room temperature; adding crylic acid, acrylamide and cross-linking agents in the carbohydrate reaction liquors; adding water in the mixture so that the crylic acid, the acrylamide and the cross-linking agents can be dissolved completely; heating the mixture in water bath until the temperature is 50 DEG C; keeping warm for half hour; adding initiating agents in the mixture; performing stirring reaction in a thermostat water bath for 0.5-5 hours at the temperature of 50-80 DEG C to obtain gel; taking out the gel after reaction is finished; cleaning the gel by using deionized water; cutting off the gel into small pieces; soaking the small pieces of the gel in the deionized water for 7 days; changing water at intervals of 6 hours; and performing freeze drying on products to obtain the ccompound water gel material. The gel has high application value on the aspect of wastewater treatment of a textile industry, a chemical industry and the like.

Description

technical field [0001] The invention relates to the field of intelligent polymer materials, in particular to a method for preparing a composite hydrogel material with good adsorption function for organic dyes such as methylene blue and methyl orange. Background technique [0002] Dyes such as methylene blue are widely used in colored paper, temporary hair dye, dyed cotton, wool and other fields. Although these dyes are not strongly dangerous, they can still produce some harmful effects such as increased heartbeat, vomiting, shock, quadriplegia, etc. Due to the great difficulty in treating dye wastewater with traditional methods, it is currently a challenge to remove these dyes from wastewater. Utilizing cheap and biodegradable gel-adsorbent materials is considered to be an effective way to treat textile wastewater and industrial wastewater. [0003] Polymer smart hydrogel is a cross-linked polymer with a three-dimensional network structure that contains hydrophilic groups ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/56C08F222/38C08F220/32C08J3/075B01J20/30B01J20/26
Inventor 林艳房桂干邓拥军沈葵忠韩善明李红斌焦健
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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