Super hydrophilic oil-water separation filter paper and preparation method thereof

An oil-water separation and super-hydrophilic technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of reuse of separation materials and disposal of environmental pollution, cumbersome steps, complicated processes, etc., and achieve the distribution of raw materials. Relatively easy to control, environmentally friendly, and the effect of inhibiting adhesion

Active Publication Date: 2016-07-20
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation methods of the above-mentioned oil-water separation membranes generally have problems such as complex process and cumbersome steps, and at the same time cause certain environmental pollution in terms of reuse and disposal of separation materials. significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) In terms of weight ratio, mix 0.5g of nano-silica particles, 0.5mL of silane coupling agent 4140, 0.25mL of triethylamine, 10mL of absolute ethanol, and 0.5mL of deionized water, and sonicate for 30 minutes until uniformly dispersed;

[0027] (2) Completely immerse medium-speed qualitative filter paper (average pore size 30-50nm) in the mixture, and disperse it by ultrasonic for 3 minutes. Take out the filter paper and let it dry naturally to obtain a super-hydrophilic oil-water separation filter paper.

[0028] After measurement: the contact angle between the filter paper and water is less than 5°, and the contact angle between the filter paper and petroleum ether (boiling point 60-90°C) under water is 152°.

[0029] (3) Use a common filter device for oil-water separation, and fold the super-hydrophilic 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 volum...

Embodiment 2

[0031] (1) In terms of weight ratio, mix 0.5g of nano-silica particles, 0.5mL of silane coupling agent 4140, 0.25mL of triethylamine, 10mL of absolute ethanol, and 0.5mL of deionized water, and sonicate for 30 minutes until uniformly dispersed;

[0032] (2) Completely immerse medium-speed qualitative filter paper (average pore size 8-11nm) in the mixture, and disperse it by ultrasonic for 5 minutes. Take out the filter paper and let it dry naturally to obtain a super-hydrophilic oil-water separation filter paper.

[0033] After measurement: the contact angle between the filter paper and water is less than 5°, and the contact angle between the filter paper and petroleum ether (boiling point 60-90° C.) under water is 155°.

[0034] (3) Use a common filter device for oil-water separation, and fold the super-hydrophilic 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 volu...

Embodiment 3

[0036] (1) In terms of weight ratio, mix 0.5g of nano-silica particles, 0.25mL of silane coupling agent 4140, 0.5mL of triethylamine, 10mL of absolute ethanol, and 0.5mL of deionized water, and sonicate for 30 minutes until uniformly dispersed;

[0037] (2) Completely immerse medium-speed qualitative filter paper (average pore size 30-50nm) in the mixture, and disperse it by ultrasonic for 3 minutes. Take out the filter paper and let it dry naturally to obtain a super-hydrophilic oil-water separation filter paper.

[0038] After measurement: the contact angle between the filter paper and water is less than 5°, and the contact angle between the filter paper and petroleum ether (boiling point 60-90° C.) under water is 150°.

[0039](3) Use a common filter device for oil-water separation, and fold the super-hydrophilic 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 volu...

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PUM

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Abstract

The invention discloses a preparation method of super hydrophilic oil-water separation filter paper. The method comprises the following steps: by a dip coating method, immersing filter paper into a solution which is formed by evenly mixing nano silicon dioxide particles, a silane coupling agent, a catalyst, absolute ethyl alcohol and deionized water; and carrying out ultrasonic dispersion, taking out and naturally drying the filter paper to obtain the super hydrophilic oil-water separation filter paper. The filter paper disclosed by the invention is simple in preparation method; the raw materials are universal and available; the stability is good; the prepared super hydrophilic oil-water separation filter paper is high in pore permeability, and can be applied to the fields of oil-water mixture separation, oily sewage treatment and the like; the separation efficiency can reach 99.5% and higher; and the industrial production and application prospect is wide.

Description

technical field [0001] The invention relates to a superhydrophilic oil-water separation filter paper and a preparation method thereof, belonging to the technical field of organic-inorganic composite functional materials. Background technique [0002] The massive discharge of oily sewage in production and life and the occurrence of oil spill accidents at sea have put forward higher requirements for oil-water separation technology and materials. Oily wastewater mainly comes from oil exploration, crude oil spills, ship ballast water, and industries such as chemical, steel, food, textile, and mechanical processing. The oily sewage discharged into the environment destroys the ecological balance and endangers human health. Therefore, oil-water separation of oily sewage is beneficial to water purification. Oil-water separation can also remove impurities such as water in refined oil and improve the quality of oil products. [0003] Utilizing the different interface effects of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022
CPCB01D17/02B01D2239/0421
Inventor 唐新德潘义川庞来学韩念凤胡秀颖周德杰
Owner SHANDONG JIAOTONG UNIV
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