Preparation method of oil-water separation net membrane with super-hydrophilic lipophobicity

An oil-water separation mesh and super-hydrophilic technology, which is applied in the chemical industry and functional materials, and chemical fields, can solve the problems of oil-water separation membranes that are difficult to recycle, affect oil penetration, and high water density, and achieve short time consumption and reusability Good and stable performance

Inactive Publication Date: 2014-02-12
TIANJIN UNIVERSITY OF TECHNOLOGY
View PDF5 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these oil-water separation membranes are difficult to recycle, and since water is denser than oil, wate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of oil-water separation net membrane with super-hydrophilic lipophobicity
  • Preparation method of oil-water separation net membrane with super-hydrophilic lipophobicity
  • Preparation method of oil-water separation net membrane with super-hydrophilic lipophobicity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing an oil-water separation mesh with superhydrophilic and oleophobic properties. The copper mesh is used as the base, and the micro-nano structure is constructed by a simple solution immersion method, and polydimethyldiallylammonium chloride-sodium perfluorooctanoate is used to / Silicon dioxide (PDDA-PFO / SiO 2 ) complex for surface modification, the steps are as follows:

[0021] 1) Cut out 5×5 cm 2 The 300-mesh copper mesh was used as the substrate, and ultrasonically cleaned with detergent, ethanol solution with a concentration of 50 w%, absolute ethanol, and deionized water in sequence. The ultrasonic cleaning time was 10 min each time, and the cleaned copper mesh was placed in the drum Dry in the air drying oven for 2 hours for subsequent use;

[0022] 2) Prepare 0.2M NaOH aqueous solution and 0.1M K respectively 2 S 2 o 8 Aqueous solution, NaOH aqueous solution and K 2 S 2 o 8 The aqueous solution is ultrasonically mixed according to the...

Embodiment 2

[0031] A method for preparing an oil-water separation mesh with superhydrophilic and oleophobic properties. The copper mesh is used as the base, and the micro-nano structure is constructed by a simple solution immersion method, and polydimethyldiallylammonium chloride-sodium perfluorooctanoate is used to / Silicon dioxide (PDDA-PFO / SiO 2 ) complex for surface modification, the steps are as follows:

[0032] 1) Cut out 5×5 cm 2 The 300-mesh copper mesh was used as the substrate, and ultrasonically cleaned with detergent, ethanol solution with a concentration of 50 w%, absolute ethanol, and deionized water in sequence. The ultrasonic cleaning time was 10 min each time, and the cleaned copper mesh was placed in the drum Dry in the air drying oven for 2 hours for subsequent use;

[0033] 2) Weigh 8g NaOH and 2.7g K with a precision electronic balance 2 S 2 o 8 , take two parts of 100ml deionized water with a measuring cylinder, pour it into a 250ml beaker, and mix the weighed ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of an oil-water separation net membrane with super-hydrophilic lipophobicity. The method comprises the steps that a red copper net serves as a substrate; a micro-nano needle structure is constructed by a simple solution soaking method; surface modification is performed by a poly dimethyl diallyl ammonium chloride-sodium perfluorooctanoate/ silica compound. The prepared oil-water separation net membrane with the super-hydrophilic lipophobicity is used for oil-water separation. The method has the advantages that the preparation method of the oil-water separation net membrane with the super-hydrophilic lipophobicity is simple, short in time consuming and stable in performance, and requires no large instrument; the prepared oil-water separation net membrane is easy to clean and good in recycling; water permeation instead of oil permeation can be achieved when the net membrane provided by the method is applied to the oil-water separation; the net membrane can effectively perform the oil-water separation on vegetable oil and gasoline, and has a wide application prospect in the oil-water separation.

Description

technical field [0001] The invention belongs to the technical fields of chemistry, chemical engineering and functional materials, in particular to a preparation method of an oil-water separation omentum with superhydrophilic and oleophobic properties. Background technique [0002] At present, water pollution, especially oil pollution, occurs frequently. These polluted water sources seriously threaten the environment on which human beings live. How to achieve effective oil-water separation has become an urgent problem to be solved. Based on the controllable wettability of materials, many superhydrophobic and superoleophilic materials have been prepared for oil-water separation. However, these oil-water separation membranes are difficult to recycle, and since water is denser than oil, water tends to form a barrier between the oil and the superhydrophobic surface layer, thereby affecting oil penetration. Oil-repellent and hydrophilic materials are an effective solution. Con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01D17/022
Inventor 袁志好姬悄悄杜学丽
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap