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Preparation method of inorganic substance coating oil-water separation mesh

An oil-water separation net, inorganic technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of strict preparation requirements, complex processes, labor, material and financial resources, etc., and achieves low cost and operation. Simple, wide-ranging effects

Active Publication Date: 2015-06-10
天津超疏水纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, although CN103961905A and CN1721030A have the effect of oil-water separation, expensive low-surface-energy substances are used to modify metal meshes and fabrics, and the process is complicated, and the preparation requirements are strict, consuming manpower, material resources, and financial resources.

Method used

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  • Preparation method of inorganic substance coating oil-water separation mesh
  • Preparation method of inorganic substance coating oil-water separation mesh
  • Preparation method of inorganic substance coating oil-water separation mesh

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of micro-nano composite polyhedron

[0046] Silica sol was injected into a reactor equipped with 80nm polystyrene (PS) nanospheres prepared according to Method 3 under negative pressure, and the template was immersed for 2h, and then the reactor was sealed and placed in a thermostat for 12h at 60°C. Remove the template by temperature program at 570℃ to obtain the solid block micro-nano composite polyhedron. The obtained block micro-nano composite polyhedron is fully ground to a powder. The particle size distribution range of the powder is 100nm-5000nm (Malvern Corporation, UK). Nano-ZS90 test, the following steps and implementation cases are the same), take 0.1g of the micro-nano composite polyhedron powder into the reactor, then add 10.0mL (7.88g) dispersion acetone, when the system temperature reaches 50 ℃, add 20.6μL (0.30 g) Perfluorooctyltrimethoxysilane, the modification reaction is carried out for 12 hours, and after the reaction is completed, a susp...

Embodiment 2

[0054] (1) Preparation of micro-nano composite polyhedron

[0055] Silica sol was injected into a reactor equipped with 200nm polystyrene (PS) nanospheres prepared according to Method 3 under negative pressure, the template was immersed for 2h, and then the reactor was sealed and placed in a thermostat for 12h at 60℃. The template was removed by temperature program at 570℃ to obtain a solid block micro-nano composite polyhedron. The obtained block micro-nano composite polyhedron was fully ground to powder, and 0.1g of the micro-nano composite polyhedron powder was added to the reactor, and then 10.0mL (7.88g) ) Dispersion acetone, add 36.9μL (0.57g) perfluorodecyltrimethoxysilane when the system temperature reaches 25℃, and the modification reaction is carried out for 12h. After the reaction, the mass fraction of the micro-nano composite polyhedron is controlled to 2.7% by volatilization. Suspension

[0056] The preparation of silica sol is the same as in Example 1;

[0057] (2) Co...

Embodiment 3

[0061] (1) Preparation of micro-nano composite polyhedron

[0062] Silica sol was injected into a reactor equipped with 300nm polyacrylamide (PAM) nanospheres prepared according to method one under negative pressure, and the template was immersed for 2h, then the reactor was sealed and placed in a thermostat, and reacted at 60℃ for 12h. Soak in water to remove the template to obtain a solid block micro-nano composite polyhedron. The obtained block micro-nano composite polyhedron is fully ground to powder, and 0.1g of the micro-nano composite polyhedron powder is added to the reactor, and then 10.0mL (7.88g) is added for dispersion Liquid acetone, add 19.1μL (0.22g) trifluoropropane trimethoxysilane when the system temperature reaches 25℃, and the modification reaction is carried out for 12 hours. After the reaction is completed, the mass fraction of the micro-nano composite polyhedron is controlled to a 5.0% suspension ;

[0063] The preparation of silica sol is the same as in Exa...

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Abstract

The invention provides a preparation method of an inorganic substance coating oil-water separation mesh; the method comprises the steps: injecting a silica sol into a reactor with a mould plate under a negative pressure condition and soaking the mould plate for 2h; then sealing the reactor, placing the reactor into a thermostat, reacting for 12h at 60 DEG C and removing the mould plate to obtain a solid block-shaped micro-nano composite polyhedron; drying the block-shaped micro-nano composite polyhedron, sufficiently grinding the polyhedron into powder, pouring the powder into the reactor with dispersing acetone solution, adding a low-surface-energy silane coupling agent for modification, reacting for 12h and then obtaining modified micro-nano composite polyhedron turbid liquid; enabling the mass concentration percentage of the solid in the turbid liquid to be 0.5-20% by volatilizing acetone or adding acetone again. Not only crude oil, diesel oil, gasoline oil and water-insoluble oily liquid can be separated, but ester type organic oily solvents having certain solubility with water can be separated.

Description

Technical field [0001] The invention relates to the technical field of oil-water separation, in particular to a method for preparing an oil-water separation net without surface modification. Background technique [0002] Super-hydrophobic performance means that the contact angle of the surface of the object to water is greater than 150°. The self-cleaning performance of the lotus leaf leaving silt and not staining, the self-cleaning performance of the surface of the moth's wings, the legs of the water strider walk freely on the water surface without sinking, and the surface of the fish body keeps itself clean in the oil-contaminated water. The phenomenon has aroused great concern of many scholars. Barthlott et al. confirmed [W.Barthlott,et al.Planta,1997,202:1.] that the superhydrophobicity of natural surfaces is the synergistic effect of their two-scale structure (micro-nano structure) and the low surface free energy of related materials The result of the combination. The sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022D06M11/79
CPCB01D17/02D06M11/79
Inventor 张旭杨碧微王小梅刘盘阁
Owner 天津超疏水纳米科技有限公司
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