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Method for preparing super-hydrophobic porous material based on double-emulsion template

A technology of porous material and emulsion template, applied in separation methods, chemical instruments and methods, liquid separation, etc., to achieve the effect of simple process and low cost

Active Publication Date: 2022-04-19
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new method for preparing superhydrophobic porous materials for the existing problems in the preparation of porous materials for oil-water emulsion separation, that is, based on double emulsion Preparation of Superhydrophobic Porous Materials by Template Method

Method used

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  • Method for preparing super-hydrophobic porous material based on double-emulsion template
  • Method for preparing super-hydrophobic porous material based on double-emulsion template
  • Method for preparing super-hydrophobic porous material based on double-emulsion template

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Experimental program
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Effect test

Embodiment 1

[0029] A method for preparing superhydrophobic porous materials based on double emulsion templates: (1) 2 parts by weight of γ-aminopropyltriethoxysilane, 0.4 parts by weight of sodium dodecylsulfonate and 2 parts by weight of initiator persulfuric acid Sodium was dispersed in 2000 parts by weight of deionized water to obtain emulsion template A containing siloxane coupling agent, hydrophilic emulsifier and initiator. (2) Add 2004.4 parts by weight of emulsion template A to 30 parts by weight of styrene, 15 parts by weight of crosslinking agent A divinylbenzene, 5 parts by weight of crosslinking agent B ethylene glycol dimethacrylate and 10 parts by weight of hydrophilic In the high internal phase emulsion template B composed of oily emulsifier Span80, emulsify with mechanical stirring at 200r / min for 10min to obtain a double emulsion template prepolymerization system composed of emulsion template A and high internal phase emulsion template B. (3) The double-emulsion template ...

Embodiment 2

[0031] A method for preparing superhydrophobic porous materials based on double emulsion templates: (1) 10 parts by weight of γ-aminopropyltriethoxysilane, 1 part by weight of cetyltrimethylammonium bromide and 2 parts by weight of initiator Agent ammonium persulfate was dispersed in 1000 parts by weight of deionized water to obtain emulsion template A containing siloxane coupling agent, hydrophilic emulsifier and initiator. (2) Add 1013 parts by weight of emulsion template A to 30 parts by weight of styrene, 10 parts by weight of crosslinking agent AN, N-methylenebisacrylamide, 10 parts by weight of crosslinking agent B trimethylolpropane triacrylate In the high internal phase emulsion template B composed of 15 parts by weight lipophilic emulsifier MOA-3, at 800r / min mechanical stirring and emulsification for 20min, a double emulsion template prepolymerization system consisting of emulsion template A and high internal phase emulsion template B was obtained . (3) The double-e...

Embodiment 3

[0033] A method for preparing superhydrophobic porous materials based on double emulsion templates: (1) 1 weight part of γ-glycidyl etheroxypropyltrimethoxysilane, 0.2 weight part of alkyl glucoside and 1 weight part of initiator cumene Hydrogen peroxide was dispersed in 2000 parts by weight of deionized water to obtain emulsion template A containing siloxane coupling agent, hydrophilic emulsifier and initiator. (2) Add 2002.2 parts by weight of emulsion template A to 20 parts by weight of styrene, 20 parts by weight of crosslinking agent A ethylene glycol dimethacrylate, 10 parts by weight of crosslinking agent B dipentaerythritol pentaacrylate and 20 parts by weight of In the high internal phase emulsion template B composed of lipophilic emulsifier oleic acid ester, at 100r / min mechanical stirring emulsification 60min, obtain the double emulsion template prepolymerization system that is made up of emulsion template A and high internal phase emulsion template B; (3) The doubl...

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Abstract

The invention discloses a method for preparing a super-hydrophobic porous material based on double emulsion templates, which comprises the following steps: (1) dispersing a siloxane coupling agent, a hydrophilic emulsifier and an initiator in deionized water to obtain an emulsion template A; (2) adding the emulsion template A into a high internal phase emulsion template B consisting of styrene, a cross-linking agent A, a cross-linking agent B and a lipophilic emulsifier, and stirring and emulsifying for 5-60 minutes to obtain a double-emulsion template prepolymerization system; and (3) reacting the double-emulsion template prepolymerization system at 40-80 DEG C for 4-16 hours to obtain the super-hydrophobic porous material. The cross-linking agent A and the cross-linking agent B are respectively selected from one of divinyl benzene, triallyl isocyanurate, N, N-methylene bisacrylamide, trimethylolpropane triacrylate, ethylene glycol dimethacrylate and dipentaerythritol pentaacrylate. The porous material prepared by the invention can be used for continuously separating an oil-water immiscible mixture and continuously separating an oil-water emulsion with a stable surfactant in a suction filtration manner.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a method for preparing a superhydrophobic porous material based on a double emulsion template. Background technique [0002] The worldwide oil spill incidents and the discharge of a large amount of industrial oily wastewater continue to increase, coupled with the leakage of chemicals transported in tanks, which has posed a major threat to marine ecosystems and water quality safety. Therefore, the removal of organic pollutants from water has become an important and timely issue to limit environmental pollution. Traditional treatment methods, such as oil skimmer collection, adding chemical dispersants, using filter media and various adsorption materials, etc., are usually time-consuming and energy-consuming, and have problems such as low separation efficiency and secondary pollution. The superhydrophobic / superoleophilic three-dimensional porous materials developed bas...

Claims

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Application Information

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IPC IPC(8): C08J9/00C08L43/04C08L51/08C08F230/08C08F212/08C08F212/36C08F222/14C08F222/20C08F222/38C08F226/06C08F2/22C02F1/40B01D17/022
CPCC08J9/00C08F230/085C08F283/008C08F2/22C02F1/40B01D17/02C08J2343/04C08J2351/08C08F212/08C08F212/36C08F222/102C08F222/385C08F222/103C08F222/105C08F226/06Y02A20/204
Inventor 赵春霞黄浩然黄世杰李云涛李辉向东武元鹏王斌王硕秦明旺
Owner SOUTHWEST PETROLEUM UNIV
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