Fluorine-containing superhydrophobic porous material for oil-water separation and preparation method thereof

A technology for porous materials and oil-water separation, applied in the field of composite materials, can solve the problems of high temperature resistance, low acid and alkali resistance, low chemical inertness, and insufficient hydrophobic and lipophilic properties, achieve good hydrophobic and lipophilic properties, improve oil-water separation efficiency, and facilitate The effect of promotion

Active Publication Date: 2022-03-11
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] One object of the present invention is to provide a fluorine-containing superhydrophobic porous material for oil-water separation, aiming at the problems of insufficient hydrophobic and lipophilic properties of existing superhydrophobic adsorption materials, low chemical inertness such as high temperature resistance, acid and alkali resistance, etc.

Method used

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  • Fluorine-containing superhydrophobic porous material for oil-water separation and preparation method thereof
  • Fluorine-containing superhydrophobic porous material for oil-water separation and preparation method thereof
  • Fluorine-containing superhydrophobic porous material for oil-water separation and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] A preparation method of a fluorine-containing superhydrophobic porous material for oil-water separation, the steps are as follows:

[0043] (1) 80 parts by weight of hexachlorocyclotriphosphazene, 230 parts by weight of bisphenol S, and 20,000 parts by weight of acetonitrile were mixed uniformly, ultrasonicated at 40 Hz, reacted at 50°C for 30 minutes, added 8 parts by weight of triethylamine, and heated at 50°C Ultrasonic reaction for 4 hours. The obtained product was washed with acetone, ethanol and deionized water respectively, centrifuged three times, and dried at 50° C. for 5 hours to finally obtain polyphosphazene microspheres with a particle diameter of about 0.5 microns.figure 1 It is the bisphenol S polyphosphazene microsphere figure described in embodiment 1, and its diameter is about 0.5 micron. figure 2 It is the infrared image of bisphenol S polyphosphazene microspheres described in embodiment 1, 1292cm -1 It is the O=S=O absorption peak.

[0044] (2) 20...

Embodiment 2

[0048] A preparation method of a fluorine-containing superhydrophobic porous material for oil-water separation, the steps are as follows:

[0049] (1) 80 parts by weight of hexachlorocyclotriphosphazene, 230 parts by weight of bisphenol F, and 20,000 parts by weight of acetonitrile were uniformly mixed, ultrasonicated at 40 Hz, reacted at 50°C for 30 minutes, added 8 parts by weight of triethylamine, and heated at 50°C Ultrasonic reaction for 4 hours. The obtained product was washed with acetone, ethanol and deionized water respectively, centrifuged three times, and dried at 50° C. for 5 hours to finally obtain polyphosphazene microspheres with a particle diameter of about 1 micron. image 3 It is the bisphenol F polyphosphazene microsphere figure described in embodiment 2, and its diameter is about 1 micron. Figure 4 It is the infrared figure of bisphenol F polyphosphazene microspheres described in embodiment 2, 1516cm -1 It is the C-F absorption peak.

[0050] (2) 20 par...

Embodiment 3

[0054] A preparation method of a fluorine-containing superhydrophobic porous material for oil-water separation, the steps are as follows:

[0055] (1) Mix 100 parts by weight of hexachlorocyclotriphosphazene, 300 parts by weight of bisphenol A, and 25,000 parts by weight of toluene, ultrasonicate at 30 Hz, react at 60°C for 15 minutes, add 10 parts by weight of pyridine, and react ultrasonically at 65°C 2 hours. The obtained product was washed with acetone, ethanol and deionized water respectively, centrifuged three times, and dried at 80° C. for 3 hours to finally obtain polyphosphazene microspheres.

[0056] (2) 50 parts by weight of styrene, 20 parts by weight of perfluorohexyl ethyl methacrylate, 20 parts by weight of polyphosphazene microspheres, 50 parts by weight of pentaerythritol triacrylate, 10 parts by weight of cuprous naphthenate / peroxide Dibenzoyl and 30 parts by weight of Span40 were ultrasonically dispersed at 40 Hz for 5 minutes to obtain a mixed system.

[...

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Abstract

The invention discloses a fluorine-containing super-hydrophobic porous material for oil-water separation and a preparation method thereof. The porous material is made of raw material styrene, a fluorine-containing monomer, a crosslinking agent and polyphosphazene microspheres in an initiator, deionized water and Under the action of emulsifier, react at 50-80°C for 4-12h. The specific steps are as follows: mix styrene, fluorine-containing monomer, polyphosphazene microspheres, crosslinking agent, initiator and emulsifier, and disperse uniformly by ultrasonic to obtain a mixed system; add deionized water dropwise to the mixed system, and stir evenly , to obtain a paste emulsion, heat the paste emulsion to 50-80°C for 4-12h to obtain the initial product; extract the initial product with ethanol to remove the emulsifier, and then dry it at 50-70°C to obtain a fluorine-containing supernatant for oil-water separation. Hydrophobic porous material. The fluorine-containing superhydrophobic porous material for oil-water separation provided by the present invention reduces the surface energy of the material, improves the roughness of the material skeleton, and constructs a micro-nano structure by introducing fluorine-containing monomers and polyphosphazene microspheres, so that the material has better Hydrophobic and lipophilic properties.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a fluorine-containing super-hydrophobic porous material for oil-water separation and a preparation method thereof. Background technique [0002] With the development of industry, people's demand for oil is increasing day by day, but oil exploitation is often accompanied by oil pollution. Oil pollution refers to the pollution caused by leakage and discharge of oil during oil extraction, transportation, loading and unloading, processing and use, mainly in the ocean. Oil floats on the sea surface and rapidly spreads to form an oil film, which can be migrated and transformed through diffusion, evaporation, dissolution, emulsification, photodegradation, biodegradation and absorption. The oil can adhere to the gills of the fish, suffocate the fish, inhibit the spawning and hatching of waterfowl, destroy the impermeability of their feathers, and reduce the quality of aquati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/30B01J20/28B01J20/26C08F212/08C08F220/24C08F222/14C08F212/36C08F222/20C08F226/06C08G79/025B01D17/022C02F1/28C02F1/40C02F103/08C02F101/32
CPCB01J20/28011B01J20/28054B01J20/28021B01J20/264B01J20/262C08F212/08C08F226/06C08G79/025B01D17/0202C02F1/285C02F1/40C02F2103/08C02F2101/32C08F220/24C08F212/36
Inventor 赵春霞邓诗琴李云涛黄浩然向东李辉冯利萍
Owner SOUTHWEST PETROLEUM UNIV
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