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A long-acting antibacterial agent, an instant-acting long-acting antibacterial agent and a preparation method thereof

An antibacterial agent and long-acting technology, applied in the field of long-acting antibacterial agent and its preparation, can solve the problems of organic antibacterial agent's harmful environmental protection, limited application scope, poor long-term effect, etc., and achieves reduced yellowing degree and wide applicability. , strong antibacterial effect

Active Publication Date: 2021-08-27
天津西敦粉漆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of long-acting antibacterial agent, to solve the problems of the existing antibacterial agent not being washable, long-acting poor, application range limitation, antibacterial active component Ag ion easy yellowing and using organic antibacterial agent Harmful to the human body and environmental protection

Method used

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  • A long-acting antibacterial agent, an instant-acting long-acting antibacterial agent and a preparation method thereof
  • A long-acting antibacterial agent, an instant-acting long-acting antibacterial agent and a preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The composition of a kind of long-acting antibacterial agent is as follows: nano-silver powder 15wt%, silicon micropowder 70wt%, polyvinyl alcohol (PVA) 10wt%, polyethylene oxide (PEO) 2wt%, polyacrylamide (PAM) 1wt%, orthosilicic acid Ethyl ester (TEOS) 2wt%.

[0044] The above materials: nano silver powder TF-41023 (30-50 nanometers): Suzhou Tanfeng Technology Co., Ltd.; silicon micropowder: Jinghang Mineral Products Co., Ltd.; polyvinyl alcohol (PVA), polyethylene oxide (PEO), polyacrylamide (PAM) tetraethyl orthosilicate was obtained from Tianjin Yuanli Chemical Co., Ltd.

[0045] The preparation method of this long-acting antibacterial agent is as follows:

[0046] A1. Weigh the above-mentioned corresponding amount of each raw material in proportion, stir polyvinyl alcohol (PVA), polyethylene oxide (PEO), polyacrylamide (PAM) in deionized water at 1000rpm and heat to 80°C until fully dissolved and An aqueous solution is formed, and the total concentration of the ...

Embodiment 2

[0053] The composition of long-acting antibacterial agent is as follows: nano-silver powder 15wt%, porous silica gel 70wt%, polyvinyl alcohol (PVA) 10wt%, gum arabic (AG) 2wt%, calcium chloride (PAM) 2wt%, epichlorohydrin 1wt% .

[0054] The above materials: Porous silica gel: Qingdao Bangkai; Calcium chloride: Guangzhou Suixin Chemical; Polyvinyl alcohol (PVA), polyethylene oxide (PEO), epichlorohydrin: Tianjin Yuanli Chemical Co., Ltd.; Gum Arabic (AG ): Norevo (Suzhou) Food Co., Ltd.

[0055] The preparation method of this long-acting antibacterial agent is as follows:

[0056] A1. Weigh the above-mentioned corresponding amounts of each raw material in proportion, stir polyvinyl alcohol (PVA), gum arabic, and calcium chloride in deionized water at 400rpm and heat to 100°C until fully dissolved and form an aqueous solution, hydrophilic polymer The total concentration in the aqueous solution or water-soluble-dispersion is between 0.1% and 20%, and the total concentration of...

Embodiment 3

[0061] The composition of long-acting antibacterial agent is as follows: nanometer silver powder 15wt%, 4A molecular sieve 70wt%, hydroxypropyl methylcellulose (HPMC) 12wt%, rutile type nano titanium dioxide (TTO-55) 2wt% and ethylene glycol glycidyl ether 1wt% %.

[0062] The above materials: 4A molecular sieve: PQ Techn Company of the United States; hydroxypropyl methylcellulose (HPMC): Ashland Company of the United States; rutile nano-titanium dioxide: Ishihara Taibaike Company of Japan; ethylene glycol glycidyl ether: Shanghai Rufa Chemical Technology Co., Ltd.; other materials are the same as in Example 1.

[0063] The preparation method of this long-acting antibacterial agent is as follows:

[0064] A1. Weigh the above-mentioned corresponding amounts of each raw material in proportion, stir hydroxypropyl methylcellulose (HPMC) and rutile nano-titanium dioxide (TTO-55) in deionized water at 2000rpm and heat to 50°C until fully dissolved and An aqueous solution is formed...

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Abstract

The invention discloses a long-acting antibacterial agent, an immediate-acting long-acting antibacterial agent and a preparation method thereof, and relates to the technical field of paint antibacterial agents. The long-acting antibacterial agent of the present invention mainly includes nano-silver, carrier particles, hydrophilic polymer / a mixture of hydrophilic polymer and hydrophilic inorganic substances, and the long-acting antibacterial agent with immediate effect includes nano-silver, silver salt, other metal Salts, carrier particles, hydrophilic polymers / mixtures of hydrophilic polymers and hydrophilic inorganics, and crosslinkers. The invention solves the problems that the coating film prepared by the current antibacterial agent is not washable, has poor long-term effect, the antibacterial active component Ag ions are easy to yellow, and the use of organic antibacterial agents is harmful to the human body and environmental protection. Water-based polymers or a mixture of hydrophilic polymers and hydrophilic oligomers or inorganic substances coat the surface of the antibacterial agent to control the release rate of silver ions, and at the same time promote the ionization of silver simple substances to release silver ions for antibacterial.

Description

technical field [0001] The invention relates to the technical field of coating antibacterial additives, in particular to a long-acting antibacterial agent, an instant-acting long-acting antibacterial agent and a preparation method thereof. Background technique [0002] With the development of society, people are more and more concerned about their own health, looking forward to a cleaner living and working environment. Public places, office and production environments, and the surfaces of facilities, tools, and utensils that people often touch in the living room can easily become a breeding ground for pathogens, and become a way for pathogens to enter the human body and cause diseases. For example, public transport vehicles, building interior walls, hospital equipment and hospital beds, office and living furniture, electrical equipment, children's toys, etc. are typical routes of pathogen transmission. Therefore, the surface with antibacterial coating can greatly reduce the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/14C09D5/03C09D167/00C09D7/61C09D7/65C09D7/63
Inventor 祝京旭张辉伊思敏·瑞兹万娜
Owner 天津西敦粉漆科技有限公司
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