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Large-outer-surface magnetic porous resin beads and preparation method thereof

A technology of porous resin and outer surface, which is applied in the field of high outer surface magnetic porous resin spheres and its preparation, can solve the problems such as surface wrinkled magnetic porous resin microspheres, etc., which is easy to industrialize and enlarge, increase the adsorption capacity, and improve the adsorption capacity. effect of speed

Active Publication Date: 2019-03-12
NORTHWESTERN POLYTECHNICAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the preparation of surface wrinkled magnetic porous resin microspheres by suspension polymerization

Method used

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  • Large-outer-surface magnetic porous resin beads and preparation method thereof
  • Large-outer-surface magnetic porous resin beads and preparation method thereof
  • Large-outer-surface magnetic porous resin beads and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Preparation of High External Surface Magnetic Porous Resin Balls

[0025] Weigh 400 g of an aqueous solution containing 1.5% gelatin, 0.5% polyvinyl alcohol (alcoholysis degree 80%, polymerization degree 1000) and 1.5% sodium chloride with a mass concentration of 1.5%, and add it to a three-necked flask equipped with stirring and condensation; Weigh 0.80g of benzoyl peroxide, 8.20g of glycidyl methacrylate, 29.20g of styrene, 20.80g of ethylene glycol diacrylate, 33.25g of toluene, and 5.80g of silicone oil (25°C, 100cps, methyl silicone oil) , Hydrophobic Fe 3 o 4 1.69g of nanoparticles, fully dissolved and mixed, added to the three-necked flask, stood still for 5 minutes, started stirring, the stirring speed was 450rpm, after stirring for 30 minutes, the system was heated up to 85°C, and the temperature was reacted for 7 hours; after the reaction, centrifuged in turn , hot water washing, cold water washing, acetone Soxhlet extraction, and vacuum drying to...

Embodiment 2

[0026] Example 2: Preparation of High External Surface Magnetic Porous Resin Balls

[0027] Weigh 400 g of an aqueous solution containing 1.6% gelatin, 0.5% polyvinyl alcohol (alcoholysis degree 88%, polymerization degree 1200) and 1.7% sodium chloride solution with a mass concentration of 1.6%, and add it to a three-necked flask equipped with stirring and condensation; Weigh 0.83g of benzoyl peroxide, 9.17g of glycidyl methacrylate, 25.83g of styrene, 17.50g of ethylene glycol diacrylate, 29.17g of toluene, and 5.83g of silicone oil (25°C, 100cps, ethyl silicone oil) , Hydrophobic Co 3 o 4 1.67g of nanoparticles, fully dissolved and mixed, added to the three-necked flask, stood still for 5 minutes, started stirring, the stirring speed was 480rpm, after stirring for 30 minutes, the system was heated to 90°C, and the temperature was reacted for 8 hours; after the reaction was completed, centrifuged in turn , hot water washing, cold water washing, acetone Soxhlet extraction, a...

Embodiment 3

[0028] Example 3: Preparation of High External Surface Magnetic Porous Resin Balls

[0029] Weigh 400 g of an aqueous solution containing 1.7% gelatin, 0.6% polyvinyl alcohol (alcoholysis degree 85%, polymerization degree 2000) and 1.8% sodium chloride solution with a mass concentration of 1.7%, and add it to a three-necked flask equipped with stirring and condensation; Weigh 0.70g of benzoyl peroxide, 7.94g of glycidyl methacrylate, 24.50g of styrene, 16.33g of ethylene glycol diacrylate, 29.72g of toluene, and 5.30g of silicone oil (25°C, 50cps, ethyl silicone oil) 1.41g of hydrophobic Fe nanoparticles, fully dissolved and mixed, then added to the three-necked flask, rested for 5 minutes, started to stir, the stirring speed was 500rpm, after stirring for 30min, the system was heated to 85°C, and the temperature was reacted for 10h; after the reaction, After centrifugation, hot water washing, cold water washing, acetone Soxhlet extraction, and vacuum drying in sequence, the h...

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Abstract

The invention relates to large-outer-surface magnetic porous resin beads and a preparation method thereof. hydrophobic magnetic particles are dispersed and reasonably matched in an oil phase to obtaina disperse phase; the disperse phase is added to high-stability water phase; stirring is performed to obtain disperse phase drops; magnetic particles are wrapped in the disperse phase drops through thermal induced polymerization so that magnetic porous resin beads with wrinkles are attained; the surface wrinkles are mainly caused by the reasonable matching of a polymer component and a pore-forming agent component; the polymer component is P(GMA-St-DVB). The outer surface of the porous resin beads have wrinkle form, the porous resin beads contain rich pores inside, massive epoxy functional groups are carried on the surface, the porous resin beads can be quickly separated and enriched under a magnetic field; contact adsorption and separated regeneration are benefited. The method herein is based on a suspension polymerization system; therefore, industrial amplification is easy, and the enlarged outer surface helps increase adsorbing capacity and adsorbing speed. The composite beads herein are expected to gain potential application value in the fields, such as open water treatment and fermented matter separation.

Description

technical field [0001] The invention belongs to the field of porous adsorption and separation materials, and relates to a high outer surface magnetic porous resin ball and a preparation method thereof. Background technique [0002] As a very important class of adsorption and separation materials, magnetic resin microspheres have been applied in industry. The typical industrial product is MIEX magnetic ion exchange resin developed by ORICA company in Australia, which is mainly used to remove organic pollutants that are difficult to degrade in water. Domestic There are also many magnetic porous resin materials imitating MIEX resin. It can be found that the magnetic porous resin that can truly realize industrial application must have several characteristics: (1) The raw material is easy to obtain, the production process is simple, and it is easy to industrialize; (2) The pores are rich, and the large pores and small pores coexist, which is conducive to mass transfer. , fast pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08F212/08C08F222/14C08F220/32C08F2/44C08K3/22C08K3/08B01J20/26B01J20/28C08L35/06
CPCB01J20/261B01J20/28009B01J20/28019C08F2/44C08F212/08C08J9/28C08J2335/06C08K3/08C08K3/22C08K2003/0856C08K2003/0862C08K2003/2275C08K2003/2289C08K2003/2293C08K2201/01C08K2201/011C08F222/102C08F220/325
Inventor 张宝亮王继启寇晓康张秋禹刘琼
Owner NORTHWESTERN POLYTECHNICAL UNIV
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