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Temperature-responsive oil-water separation filter paper and preparation method thereof

A temperature-responsive, oil-water separation technology, applied in separation methods, filter paper, filtration separation, etc., to achieve the effects of good stability, easy experimental conditions, and low cost

Active Publication Date: 2016-09-07
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no report on the preparation of environmentally responsive oil-water separation materials using paper as the base material

Method used

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  • Temperature-responsive oil-water separation filter paper and preparation method thereof
  • Temperature-responsive oil-water separation filter paper and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) Preparation of temperature-responsive polymer PNIPAM-co-PTMOSPMA

[0029] In molar ratio, N-isopropylacrylamide (NIPAM), trimethoxysilylpropyl methacrylate (TMOSPMA), and initiator azobisisobutyronitrile (AIBN) are mixed in a molar ratio of 200:100:1 Mixed and dissolved in a certain volume of anisole, and the reaction container was subjected to liquid nitrogen freezing-vacuumizing-nitrogen filling treatment, and the cycle was repeated three times. Under nitrogen protection, the reaction vessel was placed in a constant temperature oil bath at 80° 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 dissolution-precipitation again, vacuum-dry at room temperature for 24 h to obtain temperature-responsive polymer P1.

[0030] (2) In terms of weight ratio, mix 0.5g of nano-silica particles, 1.0g of temperature-responsive p...

Embodiment 2

[0034] (1) Preparation of temperature-responsive polymer PNIPAM-co-PTMOSPMA

[0035] The preparation method is the same as in Example 1.

[0036] (2) In terms of weight ratio, mix 0.5g of nano-silica particles, 1.5g of temperature-responsive polymer P1, 0.5g of triethylamine, and 10mL of tetrahydrofuran, and sonicate for 75 minutes until uniformly dispersed;

[0037] (3) The medium-speed qualitative filter paper (average pore size 30-50nm) was completely immersed in the mixed solution, dispersed by ultrasonic for 7 minutes, then taken out to dry naturally for 30 hours, and then vacuum-dried at room temperature for 18 hours.

[0038] (4) Use a common filter device for oil-water separation, and fold the temperature-responsive oil-water separation filter paper into a funnel shape and put it into the filter funnel. Mix petroleum ether (boiling point 60-90°C) and deionized water at a ratio of 1:1 by volume, ultrasonically disperse it into an oil-water mixture, cool to 10°C), quick...

Embodiment 3

[0040] (1) Preparation of temperature-responsive polymer PNIPAM-co-PTMOSPMA

[0041] The preparation method is the same as in Example 1.

[0042] (2) In terms of weight ratio, mix 0.5g of nano-silica particles, 2.0g of temperature-responsive polymer P1, 0.5g of triethylamine, 10mL of N, N-dimethylformamide, and sonicate for 90 minutes until uniformly dispersed;

[0043] (3) Completely immerse medium-speed qualitative filter paper (average pore size 30-50nm) in the mixture, ultrasonically disperse it for 10 minutes, take it out and dry it naturally for 24 hours, and then vacuum-dry it at room temperature for 12 hours.

[0044] (4) Use a common filter device for oil-water separation, and fold the temperature-responsive oil-water separation filter paper into a funnel shape and put it into the filter funnel. Mix petroleum ether (boiling point 60-90°C) and deionized water at a volume ratio of 1:1, ultrasonically disperse it into an oil-water mixture in a constant temperature water...

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Abstract

The invention discloses temperature-responsive oil-water separation filter paper and a preparation method thereof. By means of a dip-coating method, the filter paper is dipped in a solution formed by evenly mixing nano silica particles, a temperature-responsive polymer, a catalyst and organic solvent, ultrasonic dispersion is conducted, the filter paper is taken out and subjected to natural drying, vacuum drying is conducted, and temperature-responsive oil-water separation filter paper is obtained. The preparation method is simple, low in cost and good in stability, the prepared filter paper has a temperature-responsive property, oil-water separation can be conducted selectively, a good separating effect is achieved for different oil-water mixtures, and the industrial application prospect is wide.

Description

technical field [0001] The invention relates to a temperature-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 trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H17/68D21H17/38D21H17/07B01D17/02
CPCB01D17/02D21H17/07D21H17/38D21H17/68D21H17/74D21H27/08
Inventor 唐新德胡秀颖韩念凤庞来学潘义川周德杰
Owner SHANDONG JIAOTONG UNIV
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