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Anti-bacterial polypropylene plastic and preparation method thereof

An antibacterial polypropylene and plastic technology, applied in the field of antibacterial polypropylene plastic and its preparation, can solve problems such as poor water resistance of antibacterial plastics, and achieve the effects of good antibacterial and antifungal effect, simple and easy preparation method, and strong water resistance.

Inactive Publication Date: 2017-12-22
WUHU BLUE SKY ENG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the poor water resistance of antibacterial plastics containing polyguanidine antibacterial agents in the prior art, and provide a kind of antibacterial polypropylene plastics with good water resistance and its preparation method

Method used

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  • Anti-bacterial polypropylene plastic and preparation method thereof
  • Anti-bacterial polypropylene plastic and preparation method thereof
  • Anti-bacterial polypropylene plastic and preparation method thereof

Examples

Experimental program
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Effect test

preparation Embodiment 1

[0044] 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

[0046] 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 Mountain's Industrial Co., Ltd., PHMB) 32g (0.146mol) carry out the first mixed contact, the temperature of contact is 20 ℃, 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

[0048] 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 field of plastic anti-bacteria and particularly provides anti-bacterial polypropylene plastic and a preparation method thereof. The method comprises steps as follows: (1), in the presence of an aqueous solvent, poly guanidine salts and sodium 2-mercaptopyridine N-oxide are mixed and contacted, solid substances are obtained, dried and smashed, and an anti-bacterial agent is obtained, wherein the poly guanidine salts comprise polyhexamethylene guanidine salt and polyhexamethylene biguanidine salt; (2), polypropylene, the anti-bacterial agent, an optional antioxidant, an optional dispersing agent and an optional compatilizer are subjected to melt blending, extrusion pelletizing, drying and injection molding. The preparation method is simple and easy, and the anti-bacterial plastic has good anti-bacterial and anti-mold effects, is high in water resistance and has bright application prospect.

Description

technical field [0001] The invention relates to an antibacterial polypropylene plastic and a preparation method thereof. Background technique [0002] In recent years, with the improvement of people's living standards and the enhancement of hygiene awareness, the demand for various antibacterial material products has been increasing, of which antibacterial plastic products account for a large proportion, including various daily products, such as refrigerators, air conditioners, various A variety of food containers, packaging bags, washing machines, toy products, vacuum cleaners, etc., all use a variety of thermoplastic antibacterial plastics, these thermoplastic antibacterial plastics include antibacterial polypropylene (PP), antibacterial polyethylene (PE), antibacterial polystyrene Polyethylene (PS), antibacterial polyvinyl chloride (PVC), antibacterial polyacrylonitrile-butadiene-styrene (ABS), antibacterial nylon (PA), antibacterial polyethylene terephthalate (PET), anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L79/00C08K5/134C08K5/526C08G73/00
CPCC08L23/12C08G73/00C08L2205/025C08L2205/03C08L79/00C08K5/1345C08K5/526
Inventor 钱万水
Owner WUHU BLUE SKY ENG PLASTIC CO LTD
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