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Preparation method of hydrophobic antibacterial ceramic membrane

A technology of antibacterial ceramics and ceramic membranes, applied in the field of ceramic membranes, can solve the problems of reducing the water flux and water treatment effect of ceramic membranes, shortening the service life, and endangering the health of consumers.

Inactive Publication Date: 2021-04-20
蚌埠泰鑫材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the water treatment process of the ceramic membrane, the accumulation of organic suspended solids, colloids, microorganisms, etc. Or the organic matter accumulated on the surface of the membrane provides nutrients for the growth and reproduction of microorganisms, causing them to multiply in large numbers. Secondary pollution, endangering the health of consumers

Method used

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  • Preparation method of hydrophobic antibacterial ceramic membrane

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Effect test

Embodiment 1

[0030] A method for preparing a hydrophobic antibacterial ceramic film, comprising the following steps:

[0031] S1: Clean the ceramic membrane:

[0032] Immerse a ceramic membrane with a porosity of 40% and a pore size of 0.1 μm in a 0.1mol / L KOH solution, ultrasonically treat it for 10 minutes, and add a 0.2mol / L HCl solution dropwise to adjust the pH to 7.0;

[0033] Then immerse in a solution with a mass concentration of 0.1% sodium cocoyl glycinate, ultrasonically treat for 0.5h, and rinse with clean water;

[0034] S2: Preparation of cuprous oxide / fluorine silicon modified hydrophobic and antibacterial modification solution:

[0035] a. Material preparation: Weigh 30 parts of epoxy resin, 6 parts of perfluorooctyl ethyl acrylate, 4 parts of 3-vinylaniline, N-β-(aminoethyl)-γ-aminopropyl 3 parts of trimethoxysilane, 3 parts of nano-cuprous oxide with an average particle size of 2nm, 0.3 part of benzoyl peroxide, 1 part of antimicrobial peptide, 0.5 part of lysozyme, 0.5...

Embodiment 2

[0043] A method for preparing a hydrophobic antibacterial ceramic film, comprising the following steps:

[0044] S1: Clean the ceramic membrane:

[0045] Immerse a ceramic membrane with a porosity of 45% and a pore diameter of 0.5 μm in a 0.1mol / L KOH solution, ultrasonically treat it for 10 minutes, and add 0.4mol / L HCl solution dropwise to adjust the pH to 7.0;

[0046]Then immerse in a solution of sodium cocoyl glutamate with a mass concentration of 0.1%, ultrasonically treat for 0.5 to 1 hour, and rinse with water, then it is ready;

[0047] S2: Preparation of cuprous oxide / fluorine silicon modified hydrophobic and antibacterial modification solution:

[0048] a. Material preparation: Weigh 35 parts of epoxy resin, 9 parts of perfluorooctyl ethyl acrylate, 6 parts of 3-vinylaniline, N-β-(aminoethyl)-γ-aminopropyl 4 parts of trimethoxysilane, 4 parts of nano cuprous oxide with an average particle size of 4nm, 0.4 parts of lauroyl peroxide, 1.5 parts of antimicrobial pepti...

Embodiment 3

[0056] A method for preparing a hydrophobic antibacterial ceramic film, comprising the following steps:

[0057] S1: Clean the ceramic membrane:

[0058] Immerse a ceramic membrane with a porosity of 50% and a pore diameter of 0.5 μm in a 0.3mol / L KOH solution, ultrasonically treat it for 15 minutes, and add a 0.5mol / L HCl solution dropwise to adjust the pH to 7.0;

[0059] Then immerse in a solution with a mass concentration of 0.2% sodium lauroyl aspartate, ultrasonically treat for 1 hour, and rinse with water;

[0060] S2: Preparation of cuprous oxide / fluorine silicon modified hydrophobic and antibacterial modification solution:

[0061] a. Material preparation: Weigh 40 parts of epoxy resin, 12 parts of perfluorooctyl ethyl acrylate, 8 parts of 3-vinyl aniline, N-β-(aminoethyl)-γ-aminopropyl 5 parts of trimethoxysilane, 5 parts of nano-cuprous oxide with an average particle size of 6nm, 0.5 parts of azobisisobutyronitrile, 3 parts of antimicrobial peptides, 2 parts of ly...

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Abstract

The invention discloses a preparation method of a hydrophobic antibacterial ceramic membrane. The preparation method comprises the following steps: S1, cleaning a ceramic membrane; S2, preparing a cuprous oxide / fluorosilicone modified hydrophobic antibacterial modification solution; S3, putting the ceramic membrane obtained in the step S1 into the modified hydrophobic antibacterial modification solution obtained in the step S2, dipping and adsorbing for 3-5 minutes, and lifting upwards at the speed of 750-1000 [mu]m / s, so as to enable the hydrophobic antibacterial modification solution to flow out from one end of the ceramic membrane; and S4, drying and curing the ceramic membrane obtained in the S3 at the temperature of 40-50 DEG C to obtain the hydrophobic antibacterial ceramic membrane. The cuprous oxide / fluorosilicone modified hydrophobic antibacterial modification solution is used for surface treatment of the ceramic membrane for the first time, so that the ceramic membrane is endowed with excellent hydrophobic, oleophobic, antifouling and antibacterial properties; the aggregation amount of organic suspended matters, colloids, microorganisms and the like on membrane pore passages or the surface of the membrane is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of ceramic membranes, and in particular relates to a method for preparing a hydrophobic and antibacterial ceramic membrane. Background technique [0002] Ceramic membrane, also known as inorganic ceramic membrane, is an asymmetric membrane formed by inorganic ceramic materials through special process. It belongs to solid membrane material in membrane separation technology. It has high separation efficiency, stable effect, good chemical stability, acid and alkali resistance. , organic solvent resistance, high temperature resistance, high mechanical strength and other advantages, it has important applications in the fields of seawater desalination, oil-water separation, and water purification. During the water treatment process of the ceramic membrane, the accumulation of organic suspended solids, colloids, microorganisms, etc. Or the organic matter accumulated on the surface of the membrane provides nutrient...

Claims

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Application Information

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IPC IPC(8): C04B41/85C04B41/70C09D4/06C09D4/02C09D5/14C09D5/16
Inventor 王文爽陈超
Owner 蚌埠泰鑫材料技术有限公司
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