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Photoresponse oil-water separation filter paper and preparation method thereof

A light-responsive, oil-water separation technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problem that polymers do not have environmental responsiveness, and achieve the effect of easy control of experimental conditions and improved adhesion.

Inactive Publication Date: 2017-08-11
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the preparation of the above paper-based oil-water separation materials all involve polymers, the polymers are not environmentally responsive

Method used

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  • Photoresponse oil-water separation filter paper and preparation method thereof
  • Photoresponse oil-water separation filter paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoxy]hexyl acrylate copolymer

[0025] In terms of molar ratio, glycidyl methacrylate, 6-[4-(4-ethoxyphenylazo)phenoxy]hexylacrylate, initiator azobisisobutyronitrile (AIBN) were mixed with 10 : The molar ratio of 90:1 is mixed and dissolved in a certain volume of anisole, and the reaction container is subjected to liquid nitrogen freezing-vacuumizing-nitrogen gas treatment, and the cycle is three times. Under nitrogen protection, the reaction vessel was placed in a constant temperature oil bath at 65° C., and reacted for 10 h under electromagnetic stirring. After the system was cooled, an appropriate amount of tetrahydrofuran was added to dilute the product and precipitated in petroleum ether. After re-dissolving and precipitating, vacuum-dry at room temperature for 24 hours to obtain glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoxy]hexylacrylate copolymer.

[0026] (2) In terms of weight ratio,...

Embodiment 2

[0030] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoxy]hexyl acrylate copolymer

[0031] The preparation method is the same as in Example 1.

[0032] (2) In terms of weight ratio, 1.5g of nano-silica particles (with a particle size of 20 to 60 nanometers), 1.0g of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo ) phenoxy]hexyl acrylate copolymer, 0.2g of ethylenediamine, and 50mL of tetrahydrofuran were mixed, and ultrasonicated for 30min until uniformly dispersed;

[0033](3) Completely immerse medium-speed qualitative filter paper (average pore size 30-50 microns) in the mixture, ultrasonically disperse it for 30 seconds, take it out and dry it naturally for 24 hours.

[0034] (4) The oil-water separation experiment is the same as in Example 1.

Embodiment 3

[0036] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoxy]hexyl acrylate copolymer

[0037] The preparation method is the same as in Example 1.

[0038] (2) In terms of weight ratio, 2g of nano-silica particles (with a particle size of 50 to 100 nanometers), 1.0g of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo) Phenoxy]hexyl acrylate copolymer, 0.2g of ethylenediamine, 50mL of tetrahydrofuran were mixed, ultrasonicated for 30min until uniformly dispersed;

[0039] (3) Completely immerse medium-speed qualitative filter paper (average pore size 30-50 microns) in the mixture, ultrasonically disperse it for 30 seconds, take it out and dry it naturally for 24 hours.

[0040] (4) The oil-water separation experiment is the same as in Example 1.

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Abstract

The invention discloses photoresponse oil-water separation filter paper and a preparation method thereof. The preparation method comprises the following steps: using a dip-coating method, dipping filter paper in solution uniformly mixed with nano silicon dioxide particles, a photoresponse polymer, a curing agent and an organic solvent, dispersing by ultrasonic wave, taking and naturally airing or drying in vacuum, preparing the photoresponse oil-water separation filter paper. The provided preparation method is simple, the cost is low, and the stability is good. The prepared filter paper has the photoresponse performance, is capable of selectively performing the oil-water separation, and has good separation effect to different oil-water mixtures, and extensive application prospect.

Description

technical field [0001] The invention relates to a light-responsive oil-water separation filter paper and a preparation method thereof, belonging to the technical field of organic-inorganic composite functional materials. Background technique [0002] Oily wastewater mainly comes from oil exploration, crude oil spills, ship ballast water, and chemical, steel, food, textile, mechanical processing and other industries. Oily wastewater destroys ecological balance and endangers human health. The treatment of oily sewage is beneficial to the improvement of the water environment; the water and other impurities in the refined oil can be removed through the oil-water separation, and the quality of the oil product can be improved. It has become an important breakthrough to promote the development of oil-water separation technology by using the special wettability of materials on the different interface effects of oil and water to realize oil-water separation. Compared with traditiona...

Claims

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Application Information

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IPC IPC(8): B01D17/022D21H19/40D21H19/58C08F220/36C08F220/32
CPCB01D17/02C08F220/36D21H19/40D21H19/58C08F220/325
Inventor 唐新德沈春丽徐大举祝文静杨月青张帅许有福董福营庞来学
Owner SHANDONG JIAOTONG UNIV
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