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Preparation method of ultrahigh-porosity polyacrylate porous oil absorption material

A technology of polyacrylate and oil-absorbing materials, which is applied in chemical instruments and methods, other chemical processes, alkali metal compounds, etc., and can solve problems such as low oil absorption efficiency, poor reuse, and low oil absorption ratio

Inactive Publication Date: 2020-04-24
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional oil-absorbing materials have many shortcomings, such as fiber oil-absorbing materials and ordinary porous oil-absorbing materials have poor oil retention and poor reuse, and polymer oil-absorbing materials have good oil retention, but there are problems such as low oil absorption ratio and low oil absorption efficiency.
Therefore, due to the low liquid absorption ratio / poor liquid absorption efficiency / poor liquid retention capacity of polymer foam materials, it has become an urgent problem to be solved in the technical field.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] To weigh 0.67 grams of Span80, add 0.885 grams of 2-ethylhexyl acrylate and 1.77 grams of 2-ethylhexyl methacrylate and 0.20 g of ethylene glycol dimethacrylate mixture, the resulting organic solution is an oil phase . Weigh 0.5 g of calcium chloride and 0.08 g of potassium persulfate and add them to 108 g of distilled water, and the resulting solution is the water phase. Add the water phase to the stirring oil phase, and mix well to form a high internal phase emulsion. Transfer the resulting high internal phase emulsion to a mold, put it in a 70°C water bath, initiate polymerization of the monomers in the high internal phase emulsion, and react to obtain a white solid, wash the solid product with rinse solvent water, ethanol or a mixture thereof, and dry to remove The internal phase can be a porous material with uniform pore size.

[0031] Scanning electron microscopy (SEM, S-3400N, JEOL) was used to observe the morphology of the porous material, and the pore size of...

Embodiment 2

[0036] Weigh 0.62 g of Span60, add 0.885 g of 2-ethylhexyl acrylate, 1.77 g of laurate methacrylate and 0.28 g of ethylene glycol dimethacrylate mixture, the resulting organic solution is an oil phase. 1.0 g of calcium chloride and 0.08 g of potassium persulfate were weighed and added to 93 g of distilled water, and the resulting solution was an aqueous phase. Add the water phase to the stirring oil phase, and mix well to form a high internal phase emulsion. Transfer the resulting high internal phase emulsion to a mold, put it in a water bath at 80°C, initiate polymerization of the monomers in the high internal phase emulsion, and react to obtain a white solid, wash the solid product with rinse solvent water, ethanol or a mixture thereof, and dry it to remove The internal phase can be a porous material with uniform pore size.

[0037] A scanning electron microscope (SEM, S-3400N, JEOL) was used to observe the morphology of the porous material, and the obtained porous material...

Embodiment 3

[0042]To weigh 0.38 grams of polyglycerol alkenyl succinate, add 0.885 grams of myristyl methacrylate and 1.77 grams of 2-ethylhexyl methacrylate and 0.18 g of ethylene glycol dimethacrylate mixture , the resulting organic solution is an oil phase. Weigh 0.15 g of calcium chloride and 0.06 g of potassium persulfate and add them to 50 g of distilled water, and the resulting solution is the water phase. Add the water phase to the stirring oil phase, and mix well to form a high internal phase emulsion. Transfer the resulting high internal phase emulsion to a mold, put it in a 90°C water bath, initiate polymerization of the monomers in the high internal phase emulsion, and react to obtain a white solid, wash the solid product with rinse solvent water, ethanol or a mixture thereof, and dry to remove The internal phase can be a porous material with uniform pore size.

[0043] A scanning electron microscope (SEM, S-3400N, JEOL) was used to observe the morphology of the porous mater...

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Abstract

The invention discloses a preparation method of an ultrahigh-porosity polyacrylate porous oil absorption material. Acrylate is used as a monomer, and a solution obtained by dissolving an emulsifier inthe monomer is used as an oil phase; an aqueous solution containing an electrolyte and an initiator is used as a water phase; and the water phase is added into the oil phase during stirring to obtaina high internal phase emulsion, the obtained emulsion is transferred into a mold, the mold is put into a constant-temperature water tank for polymerization, and an obtained material is dried to obtain the polyacrylate porous material with an open pore structure, high water-oil separation efficiency and porosity of 97.5%. The material has an adjustable pore structure, and compared with the material obtained in the prior art, the material has higher oil absorption rate and speed.

Description

technical field [0001] The invention belongs to the technical field of emulsion preparation and porous material preparation, and in particular relates to a high-efficiency and high oil-absorbing water-in-oil type high internal phase emulsion and a method for polymer porous materials. Background technique [0002] It is estimated that approximately 800 million gallons of crude oil or its derivatives are discharged into the environment each year, usually as a result of land drainage, improper waste disposal, offshore drilling, accidents involving cruise ships, or industrial wastewater; these have become major sources of pollution reason. The existing main means of dealing with oil spills mainly include physical, chemical and biological methods. Among these treatment methods, physical adsorption is one of the most effective and convenient methods for dealing with marine oil spills. Therefore, how to manufacture high-efficiency and low-cost oil-absorbing materials is one of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C08F220/18C08F222/14C08F2/30C09K3/32
CPCB01J20/264B01J20/28054C08F220/18C08F2/30C09K3/32
Inventor 章圣苗杨小藏王彦华朱芸孙艳张卡林睿哲
Owner EAST CHINA UNIV OF SCI & TECH
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