Filter paper having function of oil-water separation, and simple preparation method and application of filter paper

A technology of oil-water separation and filter paper, which is applied in the direction of separation method, filter paper, filtration separation, etc., can solve the problems of repeated use of separation materials, environmental pollution, complicated process, cumbersome steps, etc., and is suitable for large-scale production and application, simple process, The effect of simple preparation method

Inactive Publication Date: 2017-06-20
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing preparation methods of oil-water separation filter paper generally have problems such as complex process, cumbersome steps, and long time consumption, and at

Method used

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  • Filter paper having function of oil-water separation, and simple preparation method and application of filter paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) In terms of weight ratio, mix nano-silica, hexadecyltrimethoxysilane, triethylamine, ethanol and water in a ratio of 3:5:5:90:10, and ultrasonically disperse for 10 minutes.

[0023] (2) Immerse the filter paper in the solution obtained in the above step (1), ultrasonically disperse it for 10 seconds, take it out and let it dry naturally at room temperature.

[0024] The contact angle of the filter paper with water and petroleum ether (boiling point 60-90°C) is good for oil-water mixtures (by volume ratio, the ratio of deionized water to petroleum ether is 2:1) and oil-water emulsions (by volume ratio, The ratio of deionized water, petroleum ether and sodium lauryl sulfate is 2:1:0.01), the separation effect and the stability of filter paper are shown in Table 1.

Embodiment 2

[0026] (1) In terms of weight ratio, mix nano-silica, hexadecyltrimethoxysilane, triethylamine, ethanol and water in a ratio of 3:5:5:90:10, and ultrasonically disperse for 20 minutes.

[0027] (2) Immerse the filter paper in the solution obtained in the above step (1), ultrasonically disperse it for 10 seconds, take it out and let it dry naturally at room temperature.

[0028] The contact angle of the filter paper with water and petroleum ether (boiling point 60-90°C) is good for oil-water mixtures (by volume ratio, the ratio of deionized water to petroleum ether is 2:1) and oil-water emulsions (by volume ratio, The ratio of deionized water, petroleum ether and sodium lauryl sulfate is 2:1:0.01), the separation effect and the stability of filter paper are shown in Table 1.

Embodiment 3

[0030] (1) In terms of weight ratio, mix nano-silica, hexadecyltrimethoxysilane, triethylamine, ethanol and water in a ratio of 4:5:5:90:10, and ultrasonically disperse for 10 minutes.

[0031] (2) Immerse the filter paper in the solution obtained in the above step (1), ultrasonically disperse it for 10 seconds, take it out and let it dry naturally at room temperature.

[0032] The contact angle of the filter paper with water and petroleum ether (boiling point 60-90°C) is good for oil-water mixtures (by volume ratio, the ratio of deionized water to petroleum ether is 2:1) and oil-water emulsions (by volume ratio, The ratio of deionized water, petroleum ether and sodium lauryl sulfate is 2:1:0.01), the separation effect and the stability of filter paper are shown in Table 1.

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Abstract

The invention discloses filter paper having a function of oil-water separation, and a simple preparation method and application of the filter paper. The filter paper takes common experimental filter paper as substrate, and an organic/inorganic compound hydrophobic layer is loaded on the substrate, wherein the organic/inorganic compound hydrophobic layer is prepared from the following components: nano-silica, a silane coupling agent, a catalyst, ethanol and water, and the weight ratio of the nano-silica to the silane coupling agent to the catalyst to the ethanol to the water is equal to (2-5):(2-10):(2-10):(80-100):(5-20). The filter paper is prepared by adopting a dip-coating method; the preparation method of the filter paper comprises the steps of evenly dispersing the nano-silica, the silane coupling agent and the catalyst in mixed liquid of the ethanol and the water, dipping the filter paper into the dispersed liquid, taking out the dipped filter paper, and then naturally drying the filter paper in the air to obtain the filter paper having the function of oil-water separation. The filter paper is simple in preparation method, good in stability, reusable and convenient to dispose, and has a good application prospect in the fields such as oil-water separation and oily sewage treatment.

Description

technical field [0001] The invention relates to a filter paper with an oil-water separation function and a simple preparation method and application thereof, belonging to the technical field of organic-inorganic composite functional materials. Background technique [0002] Oily sewage comes from a wide range of sources, such as oil exploration, crude oil spills, ship ballast water, and industries such as chemical, steel, food, textile, and mechanical processing, which discharge a large amount of oily sewage into the environment. Oily sewage pollutes the environment and destroys ecological balance. It is harmful to human health. Therefore, the oil-water separation of oily sewage is beneficial to the purification of water. At the same time, it is of great significance to improve the quality of oil products by removing impurities such as water in the refined oil through oil-water separation. [0003] Utilizing the special wettability of materials on the different interface effe...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H17/68D21H17/13D21H17/06D21H17/07B01D17/02C02F1/40
CPCD21H27/08B01D17/02C02F1/40D21H17/06D21H17/07D21H17/13D21H17/68
Inventor 唐新德沈春丽祝文静张帅许有福杨月青董福营庞来学
Owner SHANDONG JIAOTONG UNIV
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