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Hydrophilic polymer crosslinked membrane modified textile for oil-water separation and preparation method of textile

A hydrophilic polymer and oil-water separation technology, applied in the field of oily wastewater treatment, can solve the problems of large energy loss, complicated separation methods, secondary pollution and energy consumption, etc., achieve good hydrophilicity and oleophobic properties, and improve emulsion Separation effect, efficient separation effect of emulsified oil

Active Publication Date: 2019-03-01
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the separation method of this patent is too complicated, the energy loss is too large, and a demulsifier needs to be added during the demulsification process, resulting in secondary pollution of the water body
[0004] The present invention mainly aims at the problems of complex process, secondary pollution and high energy consumption in the separation of emulsified oil in the prior art, and aims to prepare a separation membrane capable of effectively separating emulsified oil to achieve the effect of efficiently separating emulsified oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of hydrophilic polymer crosslinked membrane modified textile for oil-water separation, including the following steps:

[0041] a. Hydrophilic treatment of microfiber mesh

[0042] Firstly, make chitosan into an acidic aqueous solution with a mass concentration of 0.6g / L, ready for use; secondly, crosslink the polyphenylene sulfide melt-blown ultra-fine fiber mesh with the chitosan acidic aqueous solution at room temperature for coupling Treating agent to form a super-hydrophilic fiber network of melt-blown polyphenylene sulfide superfine fiber surface cross-linked chitosan.

[0043] b. Preparation of hydrophilic polymer cross-linked membrane modified textile used for oil-water separation. The grammage prepared by step a will be 1860g / m 2 The hydrophilic melt-blown polyphenylene sulfide ultra-fine fiber mesh is hot-rolled to obtain a 4.58mm thick ultra-hydrophilic melt-blown polyphenylene sulfide ultra-fine fiber emulsion separation membrane, which is a hyd...

Embodiment 2

[0046] A preparation method of hydrophilic polymer crosslinked membrane modified textile for oil-water separation, including the following steps:

[0047] a. Hydrophilic treatment of microfiber mesh

[0048] First, the polyvinyl alcohol is made into an aqueous solution with a mass concentration of 0.4g / L, ready for use; secondly, the polyphenylene sulfide melt-blown ultrafine fiber mesh is cross-linked with the polyvinyl alcohol aqueous solution at room temperature to couple the treatment agent , Forming a hydrophilic fiber network of melt-blown polyphenylene sulfide ultrafine fiber surface cross-linked polyvinyl alcohol.

[0049] b. Preparation of modified textiles with hydrophilic polymer cross-linked membrane for oil-water separation

[0050] The gram weight prepared by step a is 846g / m 2 The hydrophilic melt-blown polyphenylene sulfide ultra-fine fiber mesh is hot-rolled to obtain a hydrophilic melt-blown polyphenylene sulfide ultra-fine fiber emulsion separation membrane with a t...

Embodiment 3

[0053] A preparation method of hydrophilic polymer cross-linked membrane modified textile for oil-water separation, including the following steps:

[0054] a. Hydrophilic treatment of microfiber mesh

[0055] First, the polyvinyl alcohol is made into an aqueous solution with a mass concentration of 0.7g / L, ready for use; secondly, the polyphenylene sulfide melt-blown ultrafine fiber mesh is cross-linked with the polyvinyl alcohol aqueous solution at room temperature to couple the treatment agent , Forming a hydrophilic fiber network of melt-blown polyphenylene sulfide ultrafine fiber surface cross-linked polyvinyl alcohol.

[0056] c. Preparation of modified textiles with hydrophilic polymer cross-linked membrane for oil-water separation

[0057] The gram weight prepared by step a is 1090g / m 2 The hydrophilic melt-blown polyphenylene sulfide ultrafine fiber mesh is hot-rolled to obtain a hydrophilic melt-blown polyphenylene sulfide ultrafine fiber emulsion separation membrane with a t...

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Abstract

The invention discloses a hydrophilic polymer crosslinked membrane modified textile for oil-water separation and a preparation method of the textile. A melt-blown superfine fiber emulsion separation membrane is prepared by hot rolling of a melt-blown superfine fiber mesh subjected to hydrophilic treatment. The preparation method has the characteristics of simple preparation process, low productioncost and the like, and the prepared melt-blown superfine fiber emulsion separation membrane, namely, the hydrophilic polymer crosslinked membrane modified textile for oil-water separation, has high water reflux under gravity and high emulsion separation efficiency and can be recycled. The prepared melt-blown superfine fiber emulsion separation membrane can be widely applied to the fields of oilywastewater treatment and the like.

Description

Technical field [0001] The invention belongs to the fields of oily wastewater treatment and the like, and specifically relates to a hydrophilic polymer crosslinked membrane modified textile used for oil-water separation and a preparation method thereof. Background technique [0002] With the acceleration of the process of industrialization, environmental pollution has become more and more serious, and environmental protection has become a global concern. Oil is a non-renewable resource, and its recovery can improve the comprehensive value of oil substances. The state of oil in water can be divided into: slick oil, dispersed oil, and emulsified oil. Compared with slick oil and dispersed oil, emulsified oil is not a single oil. The average diameter of oil particles is between 0.1-10um. The main reason for the formation of emulsified oil is that it is affected by other chemicals in the water body, such as some surfactants. Existing in the original water body, due to the combined a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022D06M15/333D06M15/03D06M101/30D06M101/32D06M101/20
CPCB01D17/0202D06M15/03D06M15/333D06M2101/20D06M2101/30D06M2101/32
Inventor 王罗新余严黄浩林盼龙刘曼许静王桦
Owner WUHAN TEXTILE UNIV
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