Preparation method of organic macromolecule polymer coating oil-water separating net

A technology of oil-water separation mesh and polymer coating, which is applied in the direction of separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of complicated process, labor-intensive, material and financial resources, and strict preparation requirements, and achieve simple operation , Low cost, stable oil-water separation ability

Active Publication Date: 2015-07-08
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 organic macromolecule polymer coating oil-water separating net
  • Preparation method of organic macromolecule polymer coating oil-water separating net
  • Preparation method of organic macromolecule polymer coating oil-water separating net

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Preparation of micro-nano composite polyhedron

[0047] Prepare a mixed solution of 20.0mL divinylbenzene (DVB) and initiator 0.2g azobisisobutyronitrile (AIBN), put 1.0g of 40nm silica nanospheres prepared according to method 1 into the reactor, negative Inject the above mixed solution into the reactor under pressure and immerse the template for 1 hour, then seal the reactor and put it in a constant temperature box, pre-polymerize at 60°C for 4 hours, polymerize at 80°C for 24 hours, and peel off the homopolymer on the surface of the template after the reaction is completed , placed in hydrofluoric acid (HF) to ultrasonically disperse, remove the template, then wash with water until neutral, and vacuum dry at 60°C to obtain a solid block micro-nano composite polyhedron, and fully grind the obtained block micro-nano composite polyhedron to powder, The particle size distribution range of the powder is 100nm-5000nm (tested by Nano-ZS90 nanometer particle size and pote...

Embodiment 2

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

[0055] Prepare a mixed solution of 20mL divinylbenzene (DVB) and initiator 0.2g azobisisobutyronitrile (AIBN), and put 1.0g of 300nm polyacrylamide (PAM) nanospheres prepared according to method 2 into the reactor , inject the above mixed solution into the reactor under negative pressure and immerse the template for 1 hour, then seal the reactor and put it in a constant temperature box, pre-polymerize at 60°C for 4 hours, and polymerize at 80°C for 24 hours. After the reaction is completed, the surface of the template is homopolymerized After stripping off the material, immerse in distilled water for 12 hours, remove the polyacrylamide (PAM) template, and obtain a solid block micro-nano composite polyhedron after vacuum drying at 60°C. The obtained block micro-nano composite polyhedron is fully ground to powder, and the microscopic For the micro-nano composite polyhedron, 0.22 g of it is added to 10.0 g of the ethanol...

Embodiment 3

[0060] (1) Preparation of micro-nano composite polyhedron

[0061] Prepare a mixed solution of 20mL divinylbenzene (DVB) and initiator 0.2g azobisisobutyronitrile (AIBN), and put 1.0g of 500nm polymethylmethacrylate (PMMA) nanospheres prepared according to method three into In the reactor, inject the above mixed solution into the reactor under negative pressure and immerse the template for 1 hour, then seal the reactor and put it in a constant temperature box, pre-polymerize at 60°C for 4 hours, and polymerize at 80°C for 24 hours. After the reaction is completed, the template The surface homopolymer was peeled off, soaked in ethyl acetate for 12 hours to remove the polymethyl methacrylate (PMMA) template, and after vacuum drying at 60°C, a solid block micro-nano composite polyhedron was obtained, and the obtained block micro-nano composite polyhedron was fully Grind to powder to obtain microscopic micro-nano composite polyhedron, add 0.16 g of it into 10.0 g of acetone of dis...

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Abstract

The invention relates to a preparation method of an organic macromolecule polymer coating oil-water separating net, which comprises the following steps: 1)mixing a polymerization monomer and an initiator in proportion and stirring, injecting a mixed liquor into a reactor equipped with a template under negative pressure condition, immersing the template for 1 hour, polymerizing for 24 hours at temperature of 80 DEG C, after a polymerization reaction is stopped, peeling a homopolymer on surface of the template, removing the template, fully grinding the blocked micro nano polyhedral compound to obtain the powder, adding into a dispersion liquid, wherein the solid masses concentration percentage is 0.5-20% of suspending liquid; 2)performing ultrasonic cleaning on the netted material and drying under air, immersing an adhesive solution and then taking out, after a part of the adhesive is solidified, and employing a spray process for coating the suspending liquid on the net so as to form the netted material capable of separating oil and water. The preparation method reduces usage restriction of the oil-water separating net membranes, and has rapid and stable oil-water separating effect.

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] Superhydrophobic performance means that the surface of the object has a water contact angle greater than 150°. The self-cleaning performance of lotus leaves without getting dirty from mud, the self-cleaning performance of moth wing surfaces, the legs of water striders walking freely on the water surface without sinking, the surface of fish bodies keeping themselves clean in oil-polluted water, etc. The phenomenon of superhydrophobicity has attracted great attention of many scholars. Barthlott et al confirmed [W.Barthlott, et al.Planta,1997,202:1.] that the superhydrophobicity of natural surfaces is a synergistic effect of their dual-scale structure (micro-nano structure) and the low surface free energy of related materials combined result. The "self-clean...

Claims

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Application Information

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