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Antibacterial polycarbonate plastic

A polycarbonate plastic and polycarbonate technology, applied in the field of antibacterial plastics, can solve the problems that there is no polycarbonate plastic, and achieve strong antibacterial and broad-spectrum antibacterial effects

Active Publication Date: 2013-04-24
HUIZHOU HUANMEISHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is currently no polycarbonate plastic that is effective against bacteria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weighing: 4 kg of cypress oil, 6 kg of chitosan, 15 kg of nano-titanium dioxide, 20 kg of nano-silver oxide, 40 kg of polyhexamethylene guanidine phosphate, N-(trichloromethylthio)phthaloyl Imine 3 kg. Stir and mix evenly to obtain a compound antibacterial agent.

Embodiment 2

[0034] Each raw material was weighed according to the data corresponding to Example 2 in Table 1. Mix the components uniformly in a mixer at a speed of 300-400r.p.m, mix for 5-10 minutes, then melt and knead in a twin-screw extruder, extrude and granulate, and extrude the extruded pellets at 90°C Dry it in a constant temperature oven for 9 hours, then inject it into a 50mm×50mm plastic sample at an injection molding temperature of 200-220°C, and conduct an antibacterial test. The test data are shown in Table 2. Antibacterial test standard: QB / T2591-2003A "antibacterial plastic antibacterial performance test method and antibacterial effect". Detection bacteria: Escherichia coli (Escherichia coli) ATCC25922, Staphylococcus aureus (Staphy lococcus aureus) ATCC6538.

Embodiment 3

[0036] Each raw material was weighed according to the data corresponding to Example 3 in Table 1. Plastic samples were prepared according to the method of Example 2, and then antibacterial tests were carried out.

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PUM

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Abstract

The invention discloses antibacterial polycarbonate plastic comprising the components of, by weight, 100 parts of polycarbonate and 0.3-0.5 parts of a composite antibacterial agent. The composite antibacterial agent is composed of the components of, by weight: 2-6 parts of cedar oil, 4-8 parts of chitosan, 10-20 parts of nano-grade titanium dioxide, 15-25 parts of nano-grade silver oxide, 30-50 parts of polyhexamethylene guanidine phosphate, and 2-4 parts of N-(trichloromethylthio)phthalimide. The antibacterial polycarbonate plastic provided by the invention has a broad-spectrum antimicrobial effect, and high bacterium inhibition, bacterium killing, and anti-mildew effects. The plastic is mainly used as engineering plastic and is widely applied in transparent materials, electrical parts, medical equipment, machinery casings, and the like.

Description

technical field [0001] The invention relates to an antibacterial plastic, in particular to an antibacterial polycarbonate plastic. Background technique [0002] There are various kinds of microorganisms in nature. In daily life, microorganisms are closely related to people. However, some bacteria, fungi, viruses, etc., as pathogenic bacteria, seriously endanger human health and even life. According to statistical data, the number of deaths due to bacterial infection in the world is close to 20 million every year, accounting for about 30% of the total number of deaths; in 1996, the statistics of the "WHO" magazine in the United States showed that in 1995, about 52 million people died in the world, of which About 17 million died due to bacterial infection. These diseases mainly include cholera, pneumonia, malaria, tuberculosis and hepatitis. As we all know, the "mad cow disease" that broke out in the United Kingdom in the past ten years, the "foot-and-mouth disease" that app...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L5/08C08L79/00C08K13/02C08K3/22C08K5/378
Inventor 黄美蓉
Owner HUIZHOU HUANMEISHENG NEW MATERIAL CO LTD
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