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Method for mfg. sterilizing nano plates

A manufacturing method and plate technology, applied in the field of plate manufacturing, can solve the problems of poor temperature resistance of organic antibacterial agents, easy to decompose toxic substances, low effectiveness and safety, etc., and achieve good anti-corrosion effect

Inactive Publication Date: 2006-06-28
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many products use inorganic composite silver ions embedded in nano-carriers, which not only easily bring side effects (such as the strong corrosion of inorganic silver salts), but also have poor stability (silver ions are also easily oxidized to silver oxide or catalyzed by ultraviolet rays. reduced to elemental silver)
[0004] In addition, some antibacterial plates even achieve antibacterial effect by adding organic antibacterial agents, but organic antibacterial agents generally have poor temperature resistance, poor weather resistance, easy to precipitate in solvent environments, easy to produce drug resistance, easy to decompose and produce toxic substances, so Its efficacy and safety are low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0013] If the board is a solid wood board, after forming the substrate directly with logs, spray nano-silver and nano-titanium dioxide dispersions with an effective concentration of 50-100ppm (W / V) on the surface of the substrate, and then dry it with hot air at 50-60°C An intermediate material is formed. In addition, add nano-silver and nano-titanium dioxide composite agent, stabilizer, and dispersant to the board paint at the same time. If the board paint is oily, add 0.3% vitamin E to the board paint; if the board paint is water-based , then add 0.1% vitamin C to the board paint. Then the board paint is stirred at a high speed of 1000-1500 rpm for 1-2 hours, so that the effective concentrations of nano-silver and nano-titanium dioxide in the board paint are respectively between 25-100 ppm (W / V). The board paint is applied to the intermediate material, and then the baking paint is dried.

no. 2 approach

[0015] If the board is a solid wood board, after directly forming the base material with logs, the base material is sent to the nano-silver and nano-titanium dioxide dispersion soaking pool for soaking by using automatic transmission equipment. The effective concentrations of nano-silver and nano-titanium dioxide in the pool are greater than or It is equal to 1000ppm (W / V), and the soaking time is about 5-10 seconds. After leaving the tank, the base material is treated with cold air, and then dried with hot air at 60°C to form an intermediate material. In addition, add nano-silver and nano-titanium dioxide composite agent, stabilizer, and dispersant to the board paint at the same time. If the board paint is oily, add 0.3% vitamin E to the board paint; if the board paint is water-based , then add 0.1% vitamin C to the board paint. Then the board paint is stirred at a high speed of 1000-1500 rpm for 1-2 hours, so that the effective concentrations of nano-silver and nano-titanium...

no. 3 approach

[0017] If the board is a reinforced composite board, after the log is processed, it is directly cut and crushed with a raw material machine, and then part of the chopped raw material is sprayed with nano-silver and nano-titanium dioxide dispersion containing 0.2% (W / V) vitamin C, and stirred Mix to form a mixture, the concentration of nano-silver in the dispersion liquid is 5000ppm (W / V), and the concentration of nano-titanium dioxide is 1000ppm (W / V). After fully mixing, the mixture is mixed with other unsprayed chopped raw materials at a ratio of 10%, and then hot-pressed to form a base material. The base material is dipped in the nano-silver dispersion liquid containing 0.5% (W / V) vitamin C and the concentration is 10000 ppm (W / V) for 1-2 hours, and dried with 50-60 DEG C hot air to form an intermediate material. The surface layer paper is soaked in the nano-silver dispersion solution containing 0.5% (W / V) vitamin C and the concentration is 10000ppm (W / V) for 1-2 hours, and...

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PUM

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Abstract

A nano-antibacterial board is prepared through treating basic board by the dispersed liquid of nano-Ag and nano-TiO2, mixing nano-Ag, nano-TiO2, stabilizer and disperser with paint, stirring, coating the mixture on the treated board, treating a surface paper in a nano-Ag dispersed liquid, sticking it on painted board, and hot pressing.

Description

【Technical field】 [0001] The invention relates to a method for manufacturing a board, in particular to a method for manufacturing a nano-antibacterial board with anti-corrosion, anti-mildew and anti-aging properties and can be used for flooring and furniture. 【Background technique】 [0002] Nowadays, the vast majority of furniture and even the floors of some families are made of boards. Good boards can make furniture and floors last longer. Therefore, manufacturers usually carry out anti-corrosion, mildew-proof, and anti-aging treatments on the boards. Antibacterial treatment. [0003] At present, there are technologies in the industry that use nano-materials for antibacterial treatment of plates, which are mainly divided into two categories: one is to add nano-titanium dioxide to the wear-resistant layer of the plate, and use the photocatalyst reaction of nano-titanium dioxide to achieve antibacterial and self-cleaning effects. Most imported and some domestic antibacterial...

Claims

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Application Information

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IPC IPC(8): B27K5/04B27K3/32B27K3/12
Inventor 杜磊李荣先陈丽琼
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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