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Anti-microbial agent as well as preparation method and application thereof

An antibacterial agent and water solvent technology, applied in the field of antibacterial agent and its preparation, can solve problems such as poor water resistance, and achieve the effects of strong water resistance, improved water resistance, and enhanced water resistance

Inactive Publication Date: 2018-01-05
WUHU BLUE SKY ENG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the invention is to overcome the poor water resistance defect of polyguanidine antibacterial agent of prior art, provide a kind of good polyguanidine antibacterial agent of water resistance

Method used

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  • Anti-microbial agent as well as preparation method and application thereof
  • Anti-microbial agent as well as preparation method and application thereof
  • Anti-microbial agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0033] Sodium pyrithione (Hangzhou Wanjing, NPT) 77.6g (0.52mol) was joined in 530g acetone aqueous solution (acetone 20% by weight, water 80% by weight), then added polyhexamethylene guanidine propionate (Shanghai Gao Poly, F3000) 21.0g (0.098mol), polyhexamethylene biguanide hydrochloride (Shanghai Shan's Industrial Co., Ltd., PHMB) 32g (0.146mol) carry out the first mixed contact, and the temperature of contact is 30 ℃, and the time is 10 minutes; then carry out the second mixing contact, the contact temperature is 5°C, and the contact time is 30 minutes; then the solid obtained after the contact is dried and pulverized to obtain the antibacterial agent A1.

preparation Embodiment 2

[0035]Sodium pyrithione (Hangzhou Wanjing, NPT) 64.2g (0.43mol) is joined in 540g acetone aqueous solution (acetone 25% by weight, water 75% by weight), then adds polyhexamethylene guanidine propionate (Shanghai Gao Poly, F3000) 11.1g (0.052mol), polyhexamethylene biguanide hydrochloride (Shanghai Shan's Industrial Co., Ltd., PHMB) 32g (0.146mol) carry out the first mixed contact, and the temperature of contact is 20 ℃, and the time is 15 minutes; then carry out the second mixing contact, the contact temperature is 10°C, and the contact time is 40 minutes; then the solid obtained after the contact is dried and pulverized to obtain the antibacterial agent A2.

preparation Embodiment 3

[0037] Sodium pyrithione (Hangzhou Wanjing, NPT) 64.2g (0.43mol) was joined in 670g acetone aqueous solution (acetone 30% by weight, water 70% by weight), then added polyhexamethylene guanidine propionate (Shanghai Gao Poly, F3000) 15.6g (0.073mol), polyhexamethylene biguanide hydrochloride (Shanghai Shan's Industrial Co., Ltd., PHMB) 32g (0.146mol) carry out the first mixed contact, and the temperature of contact is 40 ℃, and the time is 5 minutes; then carry out the second mixing contact, the contact temperature is 0°C, and the contact time is 60 minutes; then the solid obtained after the contact is dried and pulverized to obtain the antibacterial agent A3.

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Abstract

The invention relates to the anti-microbial field of plastics, and concretely provides an anti-microbial agent as well as a preparation method and an application thereof. The method comprises the following steps: under the existence of an aqueous solvent, polymeric guanidine salts and sodium 2-pyridinethiol-1-oxide are mixed and contacted in order to obtain a solid, and the solid is dried; the polymeric guanidine salts comprise polyhexamethylene guanidine salt and polyhexamethylene biguanidine salt. The preparation method is simple and easy to operate, and the anti-microbial agent has anti-microbial and mildew-resistant effects of polymeric guanidine and sodium 2-pyridinethiol-1-oxide, and has good water resistance and bright application prospects.

Description

technical field [0001] The invention relates to an antibacterial agent and its preparation method and application. Background technique [0002] Guanidine-based polymer (polyguanidine) is a cationic bactericidal polymer. It is a broad-spectrum, high-efficiency, non-toxic, non-irritating, stable, and high thermal decomposition temperature. The field of sterilization has become a research hotspot. The bactericidal mechanism of polyguanidine can be explained as: due to the high activity of the guanidine group, the polymer is positively charged, and is easily adsorbed by various bacteria and viruses that are usually negatively charged, thus resisting the splitting function of bacteria and viruses, making the polymer Bacteria and viruses lose their ability to reproduce, and the film formed by polyguanidine hinders the respiratory passage of microorganisms, suffocates them to death, and thus plays a very good bactericidal effect. [0003] Since the guanidine group is a hydrophil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/00C08K5/378C08L23/12
Inventor 钱万水
Owner WUHU BLUE SKY ENG PLASTIC CO LTD
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