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Antibacterial composite material and preparation method and application thereof

A technology of composite materials and antibacterial agents, applied in the field of polymer composite materials, can solve problems such as harm to health, three-proof shells are easily contaminated with various bacteria, etc., and achieve the effects of excellent antibacterial properties, protection of human health, and good mechanical properties.

Inactive Publication Date: 2020-11-20
GUANGZHOU WENYI COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the three-proof shells of these electronic products are easy to be contaminated with various bacteria during use, which is very easy to endanger people's health

Method used

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  • Antibacterial composite material and preparation method and application thereof
  • Antibacterial composite material and preparation method and application thereof

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preparation example Construction

[0052] One embodiment of the present invention also provides a preparation method of antibacterial composite material, please refer to the attached figure 1 , including the following steps S100-S200.

[0053] Step S100, providing raw materials.

[0054] The above-mentioned raw materials include 95% to 99% polymer resin by weight percentage, 0.5% to 1.5% inorganic silver antibacterial agent and 0.1% to 3% dyeing agent; and the polymer resin is selected from at least one of polyurethane resin and polycarbonate resin kind.

[0055] Step S200, mixing the above-mentioned raw materials and injecting to obtain an antibacterial composite material.

[0056] In some of these embodiments, in step S200, injection molding includes a heating and melting stage and an injection molding stage; further, the raw material is heated to a molten state through the heating stage, and then injected into the mold through the nozzle of the injection molding machine, and the time of the injection moldi...

Embodiment 1

[0075] 1) By weight percentage, weigh 98.9% polycarbonate resin, 0.6% inorganic silver antibacterial agent, 0.5% toner, mix and stir the raw materials for 5 minutes, then dry at 90° C. for 3 hours in a dryer to obtain a mixture.

[0076] 2) Put the mixed material into the injection molding machine, adjust the nozzle and screw temperature of the injection molding machine to 300°C, use the mobile phone shell mold for 50 seconds to mold, cool to room temperature, and obtain an antibacterial composite material cover, and then contact the obtained cover Paste the polyethylene terephthalate protective film with self-adhesive 3M adhesive on one side of the electronic product to the inside of the PC cover to obtain the finished antibacterial cover.

Embodiment 2

[0078] 1) By weight percentage, weigh 97.5% polycarbonate resin, 1% inorganic silver antibacterial agent, 1.5% toner, mix and stir the raw materials for 5 minutes, then dry at 90° C. for 3 hours in a dryer to obtain a mixture.

[0079] 2) Put the mixed material into the injection molding machine, adjust the nozzle and screw temperature of the injection molding machine to 300°C, use the mobile phone shell mold for 50 seconds to mold, cool to room temperature, and obtain an antibacterial composite material cover, and then contact the obtained cover Paste the polyethylene terephthalate protective film with self-adhesive 3M adhesive on one side of the electronic product to the inside of the PC cover to obtain the finished antibacterial cover.

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Abstract

The invention provides an antibacterial composite material. The antibacterial composite material comprises the following components in percentage by weight: 95%-99% of polymer resin, 0.6%-2% of an inorganic silver antibacterial agent and 0.1%-3% of a coloring agent, wherein the polymer resin is selected from at least one of polyurethane resin and polycarbonate resin. The inorganic silver antibacterial agent is stable in physical and chemical properties, can maintain excellent antibacterial properties in the processing process and the use process, and can achieve a very good antibacterial effect at a low concentration, and the inorganic silver antibacterial agent with a specific weight is added, so that the prepared antibacterial composite material has excellent antibacterial properties while maintaining good mechanical properties. When the antibacterial composite material is used for preparing a protective shell, breeding of bacteria on the surface of an electronic product can be relieved, and therefore human health can be protected.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to an antibacterial composite material and its preparation method and application. Background technique [0002] The mobile phone is a kind of communication electronic device with a high penetration rate, and "the mobile phone cannot be separated from the hand" has also become a very common social phenomenon. As the "skin" of the mobile phone, the mobile phone shell is the part that users directly contact. Waterproof and shockproof capabilities, enhance the life of the phone. [0003] With the popularization of various electronic products such as mobile phones, mobile phones and portable electronic products have become one of the daily necessities that consumers are most likely to be exposed to bacteria. Technologists have found that the mobile phone shell carries various bacteria, and the amount of bacteria carried is 18 times that of the toilet handle. Mobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L75/04C08K9/12C08K3/08
CPCC08K9/12C08K3/08C08K2003/0806
Inventor 冯有如
Owner GUANGZHOU WENYI COMM EQUIP
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