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A kind of method for preparing porous polymer material by high internal phase emulsion method

A technology of high internal phase emulsion and polymer materials, which is applied in the field of preparation of porous polymer materials by high internal phase emulsion method, to achieve the effect of increasing specific surface area, low density and improving efficiency

Active Publication Date: 2022-05-10
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the current problem of oily wastewater treatment, the present invention provides a method for preparing porous polymer materials by high internal phase emulsion method

Method used

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  • A kind of method for preparing porous polymer material by high internal phase emulsion method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dissolve 0.15mL lauryl methacrylate, 0.008g sulfonated poly(styrene-co-butadiene) block copolymer and 0.0017g azobisisobutyronitrile in 0.4mL toluene, mix well; add 50μL to dissolve Hexamethylenediamine in benzene, stirring vigorously; adding 2.5mL deionized water, mixing for 5 minutes to form a gel; placing the formed gel in a 70°C water bath for 4 hours, taking it out, and freeze-drying to obtain a porous polymer material.

[0029] figure 1 This is the scanning electron microscope photo of the prepared porous polymer material. It can be seen from the microstructure that the material is a multi-level porous structure, which is conducive to efficient adsorption of various oil molecules. The specific surface area of ​​the porous material is 5.61m 2 / g, the oil-water separation efficiency reaches 99.2%.

Embodiment 2

[0031] Dissolve 0.15mL methyl methacrylate, 0.008g sulfonated poly(styrene-co-butadiene) block copolymer and 0.0017g azobisisobutyronitrile in 0.4mL toluene, mix well; add 50μL to dissolve Hexamethylenediamine in benzene was stirred vigorously; 3.0 mL of deionized water was added and mixed for 5 minutes to form a gel; the formed gel was placed in a 60°C water bath for 4 hours and then taken out, and freeze-dried to obtain a porous polymer material.

Embodiment 3

[0033] Take 0.15mL butyl methacrylate, 0.008g sulfonated poly(styrene-co-butadiene) block copolymer and 0.0017g azobisisobutyronitrile dissolved in 0.4mL toluene, mix well; add 50μL to dissolve Hexamethylenediamine in benzene was stirred vigorously; 3.0 mL of deionized water was added and mixed for 5 minutes to form a gel; the formed gel was placed in a 65°C water bath for 5 hours and then taken out, and freeze-dried to obtain a porous polymer material.

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Abstract

The invention discloses a method for preparing a porous polymer material by a high internal phase emulsion method, which comprises the following steps: preparing a sulfonated poly(styrene-co-butadiene) block copolymer, an initiator, and methacrylate Dissolving the monomer in the first organic solvent to obtain a first solution; dissolving the polyamine in a second organic solvent to obtain a second solution; mixing the first solution and the second solution to form a gel under vigorous stirring; Add water to the gel and continue to stir vigorously to form a volume-expanded gel; react the volume-expanded gel at 60-75°C for 4-6 hours, and freeze-dry after the reaction to obtain Porous polymer materials. This method uses block polymers and polyamines as stabilizers, and methacrylates as monomers to prepare a high internal phase emulsion. By initiating continuous phase polymerization and removing the internal phase, a porous polymer material is obtained; the obtained polymer material is suitable for for the separation of oil-water emulsions.

Description

technical field [0001] The invention relates to the field of material preparation, and more specifically, to a method for preparing porous polymer materials by a high internal phase emulsion method. Background technique [0002] In recent years, with the rapid development of society and economy, the human demand for energy has been continuously expanding. In order to increase the oil recovery rate, most of the development wells in various oilfields in my country have adopted the water injection development method. The water content in crude oil is very high. The water content of the effluent has reached 90%, and the oil phase and the water phase will be violently mixed during mining and transportation, usually in the form of emulsion, making it difficult to separate the oil-water mixed system. Due to its small size and high stability, oil-water emulsion has become a difficult point in oil-water separation. The annual discharge of oily wastewater in my country is as high as h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F287/00C08F220/18C08F220/14C08J9/30
CPCC08F287/00C08J9/30C08F220/14
Inventor 武元鹏张芮张海燕薛诗山
Owner BC P INC CHINA NAT PETROLEUM CORP