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Oil-water separation sponge with high elasticity and mechanical durability and preparation method thereof

An oil-water separation and durability technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of mechanical durability and elasticity that are difficult to coordinate and unify, and achieve the effect of low price, efficient separation and convenient operation

Inactive Publication Date: 2021-03-12
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantage that the mechanical durability and elasticity of existing sponge materials are difficult to coordinate and unify, and provides a sponge with high elasticity and mechanical durability and a preparation method thereof

Method used

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  • Oil-water separation sponge with high elasticity and mechanical durability and preparation method thereof
  • Oil-water separation sponge with high elasticity and mechanical durability and preparation method thereof
  • Oil-water separation sponge with high elasticity and mechanical durability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A kind of preparation method with high elasticity and mechanical durability oil-water separation sponge specifically comprises the steps:

[0023] 1) will La 2 o 3 Nanoparticles were dispersed into isopropanol solution to prepare a suspension with a mass fraction of 0.5 wt% (La 2 o 3 The mass fraction of nanoparticles relative to the epoxy resin is 0.16 wt%). After the ultrasonic dispersion is uniform, it is drip-coated on the six surfaces of the sugar cube, and placed at room temperature. After the solvent is completely evaporated, it is ready for use;

[0024] 2) Pouring the above precursor solution on the sugar cube, after the organic solvent is completely volatilized, pour the epoxy resin and polyetheramine precursor solution (epoxy resin: polyetheramine D400: polyetheramine D200=1:0.3:0.7) ;

[0025] 3) Vacuum with a 2 Pa vacuum pump to accelerate the precursor liquid to La 2 o 3 Wetting of nanoparticle-coated 3D porous framework templates to en...

Embodiment 2

[0036] Embodiment 2: a kind of preparation method with high elasticity and mechanical durability oil-water separation sponge specifically comprises the steps:

[0037] 1) TiO 2 Nanoparticles were dispersed in isopropanol solution to prepare a suspension with a mass fraction of 0.5 wt% (TiO 2 The mass fraction of nanoparticles relative to the epoxy resin is 0.32 wt%), after the ultrasonic dispersion is uniform, it is drip-coated on the surface of the sugar particles, placed at room temperature, and used after the solvent is completely evaporated;

[0038] 2) Pouring the above precursor solution onto the sugar particles, and pouring the epoxy resin and polyetheramine precursor solution (epoxy resin: polyetheramine D400: polyetheramine D200=1:0.3:0.7) after the organic solvent has evaporated completely ;

[0039] 3) Vacuum with a 2 Pa vacuum pump to accelerate the precursor liquid to TiO 2 Wetting of nanoparticle-coated 3D porous framework templates to enhance TiO 2 The embed...

Embodiment 3

[0041] Embodiment 3: a kind of preparation method with high elasticity and mechanical durability oil-water separation sponge specifically comprises the following steps:

[0042] 1) SiO 2 Nanoparticles were dispersed in isopropanol solution to prepare a suspension with a mass fraction of 0.5 wt% (SiO 2 The mass fraction of nanoparticles relative to the epoxy resin is 0.50 wt%), after ultrasonic dispersion is uniform, drop-coated on the surface of salt particles, placed at room temperature, and ready for use after the solvent is completely volatilized;

[0043] 2) Pouring the above precursor solution on the salt particles, after the organic solvent is completely volatilized, pour the epoxy resin and polyetheramine precursor solution (epoxy resin: polyetheramine D400: polyetheramine D200=1:0.3:0.7) ;

[0044] 3) Vacuum with a 2 Pa vacuum pump to accelerate the precursor solution to SiO 2 Wetting of nanoparticle-coated 3D porous framework templates to enhance TiO 2 The embeddi...

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Abstract

The invention belongs to the technical field of functional material preparation, and provides a sponge with high elasticity and mechanical durability and a preparation method thereof so as to solve the problem that the elasticity and mechanical durability of an existing polymer sponge material cannot be compatible. The method comprises the steps: ultrasonically dispersing the oxide nano-material into a volatile solvent, uniformly coating the oxide nano-particles onto a 3D skeleton template material, and completely volatilizing the solvent at room temperature; pouring an epoxy resin precursor solution onto the 3D skeleton template material, and vacuumizing to remove bubbles; and performing curing, demolding and drying to obtain the oil-water separation epoxy resin sponge with high elasticity and mechanical durability. The method is simple and easy to implement and remarkable in effect, the sponge can be circularly compressed for 100 times under 80% strain, the sponge can still keep thestructural integrity after being circularly compressed for 15 times under the maximum pressure of 15.8 MPa, the problem that improvement of elasticity and mechanical durability cannot be compatible issolved, and the prepared sponge can be used for continuously and efficiently separating an oil-water mixture.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a highly elastic and mechanically durable oil-water separation sponge and a preparation method thereof. Background technique [0002] Oil spills (such as crude oil spills in the Gulf of Mexico, direct leakage accidents of oil wells in the Bohai Bay) and discharge of oily wastewater have caused serious water pollution, causing great damage to the ecological environment and human beings. In order to realize oil-water separation and purification of water bodies, technologies such as membrane separation, adsorption, and gravity separation are widely used. However, these methods have disadvantages such as high cost and relatively low efficiency. To solve this problem, sponge materials with a three-dimensional pore structure are widely used in the separation of wastewater containing wastewater due to their high porosity, compression ratio, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K3/22C08J9/26B01D17/022
CPCB01D17/02C08J9/008C08J9/26C08J2201/0422C08J2201/0446C08J2363/00
Inventor 潘子鹤吴海滨关轶豪程芳琴
Owner SHANXI UNIV
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