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Preparation method of antibacterial coating for inner walls of recycled water storage tanks

An antibacterial coating and water recycling technology, applied in coatings, antifouling/underwater coatings, devices for coating liquids on surfaces, etc. Bacteriostatic agent leakage and other problems, to achieve the effect of low cost, strong self-cleaning ability, and enhanced anti-fouling properties

Inactive Publication Date: 2019-03-15
佛山市南海区里水镇经济促进局 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some use antibacterial agents as additives to steel plates of storage tanks, which ensures the antibacterial properties of storage tanks, but antibacterial agents are not completely compatible with stainless steel materials. Lead to the leakage of antibacterial agents, so that the antibacterial effect will decrease with time
There are also some water storage tanks that use antibacterial coatings to improve the antibacterial properties of the storage tanks, but because of the special purpose of water storage, there are strict requirements on antibacterial agents and manufacturing processes, so it is not suitable for some special purpose water tanks water storage

Method used

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  • Preparation method of antibacterial coating for inner walls of recycled water storage tanks

Examples

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Embodiment 1

[0029] A method for preparing an antibacterial coating on the inner wall of a recovered water storage tank, the base material selected is a stainless steel substrate, specifically comprising the following steps:

[0030] 1. Pretreatment: The substrate is ultrasonicated for 5 minutes at room temperature with a surface eluent. The composition of the surface eluent is: triethanolamine (12%), alkylphenol polyoxyethylene ether (6%), sodium bicarbonate (1.5 %), ethanol (8.5%), pure water (72%). Then rinse the surface with ultra-pure water, and then soak it in strong alkaline electrolytic water for 1min. The components of the strong alkaline solution are: NaOH (0.5%), sodium bicarbonate (1%), sodium phosphate (2%), ethanol (6.5%), pure water (90%). Take it out and rinse the surface with ultrapure water, then soak it in 40°C ethanol solution for 5 minutes, finally rinse it with ultrapure water, put it in an oven at 70°C to dry for 4 hours, take it out and seal it for storage.

[003...

Embodiment 2

[0034] A method for preparing an antibacterial coating on the inner wall of a recovered water storage tank, the base material selected is a stainless steel substrate, specifically comprising the following steps:

[0035] 1. Pretreatment: The substrate is ultrasonicated for 5 minutes at room temperature with a surface eluent. The composition of the surface eluent is: triethanolamine (12%), alkylphenol polyoxyethylene ether (6%), sodium bicarbonate (1.5 %), ethanol (8.5%), pure water (72%). Then rinse the surface with ultra-pure water, and then soak it in strong alkaline electrolytic water for 1min. The components of the strong alkaline solution are: NaOH (0.5%), sodium bicarbonate (1%), sodium phosphate (2%), ethanol (6.5%) and pure water (90%) are taken out and rinsed with ultrapure water, then soaked in 40°C ethanol solution for 5 minutes, finally rinsed with ultrapure water, dried in an oven at 70°C for 4 hours, taken out and sealed for storage .

[0036] 2. Preparation of...

Embodiment 3

[0039] A method for preparing an antibacterial coating on the inner wall of a recovered water storage tank, the base material selected is a stainless steel substrate, specifically comprising the following steps:

[0040] 1. Pretreatment: The substrate is ultrasonicated for 5 minutes at room temperature with a surface eluent. The composition of the surface eluent is: triethanolamine (12%), alkylphenol polyoxyethylene ether (6%), sodium bicarbonate (1.5 %), ethanol (8.5%), pure water (72%). Then rinse the surface with ultra-pure water, and then soak it in strong alkaline electrolytic water for 1min. The components of the strong alkaline solution are: NaOH (0.5%), sodium bicarbonate (1%), sodium phosphate (2%), ethanol (6.5%) and pure water (90%) are taken out and rinsed with ultrapure water, then soaked in 40°C ethanol solution for 5 minutes, finally rinsed with ultrapure water, dried in an oven at 70°C for 4 hours, taken out and sealed for storage .

[0041]2. Preparation of ...

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Abstract

The invention discloses an antibacterial coating for inner walls of water storage tanks. The antibacterial coating comprises the following components: methyltriethoxysilane, dimethyldiethoxysilane, water and ethyl lauroyl arginate, wherein the methyltriethoxysilane, the dimethyldiethoxysilane and the water have a molar ratio of 1-2: 1-2: 5-10, and the ethyl lauroyl arginate accounts for 0.1-5% thecoating by weight. The antibacterial and antifouling coating prepared through a certain preprocessing and spraying process by adopting a stainless steel sheet is used as a substrate has the characteristics of being good in adhesion, wear-resistant and self-cleaning, is suitable for long-term immersion in the environment of recycled water, and exhibits a characteristic of being hydrophobic so as to effectively enhance the anti-fouling property.

Description

technical field [0001] The invention belongs to the technical field of material surface modification, and more specifically relates to a method for preparing an antibacterial coating on the inner wall of a recycled water storage tank. Background technique [0002] As a kind of stainless steel material, recycled water storage tank has good strength, strong weather resistance, durability, and impact resistance. In addition, stainless steel is stable, non-toxic and harmless, but as a water storage container, especially as recycled water There are obvious disadvantages in water storage. The water storage container made of stainless steel has poor anti-fouling performance. When storing recycled water, the stored water itself will soak the plate for a long time, resulting in the formation of a microbial adsorption layer on the inner wall of the plate. [0003] In the current existing technology, the antibacterial mode is also used. Some use antibacterial agents as additives to s...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D5/14B05D7/22B05D7/14B05D3/12
CPCB05D3/12B05D7/14B05D7/227B05D2202/15B05D2518/12C08G77/04C09D4/00C09D5/14C09D183/04C08K5/31
Inventor 曾晖李瑞李伟华杨涛李金辉林顺蛟
Owner 佛山市南海区里水镇经济促进局
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