Antimicrobial ceramic cutting tool and its manufacturing method

A technology for antibacterial ceramics and ceramic knives, applied in the field of fine ceramics, can solve the problems of precious metal silver, affecting safety, heavy metal ions entering food, etc., and achieve excellent antibacterial effect.

Inactive Publication Date: 2008-09-24
淄博博纳科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main shortcomings are: 1) antibacterial agents are generally used on the surface or glaze of ceramics, which limits its application field; 2) metal ions are exposed to the air for a long time, and are easy to change color due to oxidation; 3) there are heavy metal ions entering food The possibility of affecting its safety; 4) Poor anti-fungal properties; 5) Metal silver is more expensive and the cost is high
The deficiencies of this class of antibacterial agents mainly lie in: 1) the light absorption and photocatalytic efficiency of the nano antibacterial layer are low, especially in the dark will greatly reduce or even lose the antibacterial and bactericidal effect; 2) the heat resistance of the antibacterial layer, Durable antibacterial and poor safety

Method used

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  • Antimicrobial ceramic cutting tool and its manufacturing method

Examples

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Effect test

Embodiment 1

[0042] 1) Raw materials: ultra-fine zirconia powder (specific surface area less than 8 square meters, particle size 5-10 μm. Provided by Zibo Chenyuan Powder Co., Ltd.) 95Kg, multifunctional healthy ceramic material (self-prepared) 5Kg. Wherein the multifunctional healthy ceramic material is prepared according to the content disclosed in the CN1190390C patent.

[0043] 2) preparation method, comprises the steps:

[0044] Evenly mix ultra-fine zirconia powder with multi-functional healthy ceramic materials, add appropriate amount of water, wet finely grind for 1-2 hours, spray granulation; form by isostatic pressing at 150-200MPa, and fire at a high temperature of 1600°C 5-12 hours, and then grind and process to make ceramic fruit knives.

Embodiment 2

[0046] 1) Raw materials: Sialon ceramic powder (with a particle size of 1-10um, provided by Lucas AyMon, UK.) 97Kg, multifunctional healthy ceramic powder (self-provided) 3Kg.

[0047] 2) The preparation method is basically the same as in Example 1, except that the firing temperature is 1450-1500° C., and ceramic kitchen knives are obtained through different molding processes.

Embodiment 3

[0049] 1) Raw materials: 99Kg of titanium carbide-based cermet material (prepared according to the technical scheme disclosed in Chinese patents CN1271706A and CN1477222A), 1Kg of antibacterial material (self-prepared).

[0050]2) The preparation method is basically the same as in the examples, except that the firing temperature is 1600-1850° C., and the ceramic western-style knife is obtained through different molding processes.

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Abstract

The present invention provides an antibacterial ceramic cutting tool and belongs to the technological field of fine ceramics. The present invention comprises ingredients and is characterized in that the ceramic cutting tool is essentially made of fine ceramic material that is used as the main raw material, and 1.5 to 5 weight percent of antibacterial material. The fine ceramic material can be selected from ultra-fine zirconia powder, ceylon ceramic materials, alumina or silicon nitride that is used for plasticizing the ceramic materials, and metal ceramic materials such as titanium carbide or titanium nitride. The application of antibacterial ingredients in the fine ceramic material has resulted in the antibacterial and bacteriostatic properties of fine ceramic products. Further the ceramic cutting tool of the antibacterial function can be prepared.

Description

technical field [0001] The invention belongs to the technical field of fine ceramics, and in particular relates to an antibacterial ceramic cutter and a preparation method thereof. Background technique [0002] With the development of science and technology and the improvement of people's living standards, people's awareness of environmental protection has been continuously strengthened. At the same time, due to the deterioration of the environment and global warming, bacteria breed, and the infection and incidence of infectious diseases are gradually increasing. In particular, the raging SARS virus and bird flu have made people realize the importance of purifying the home environment. In the prior art, the daily-use knives at home are mainly made of metal or alloy. If they are not cleaned in time or thoroughly after use, bacteria will easily breed. [0003] At present, industrially developed countries have begun to promote antibacterial sanitary ceramic products in some p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/486C04B35/599C04B35/111C04B35/81C04B35/622
Inventor 梁金生梁广川陈国英魏成章奚鸿馨
Owner 淄博博纳科技发展有限公司
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