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Antibacterium paint and preparation method thereof

A paint and substrate technology, applied in the field of materials science, can solve the problems of increasing product cost, difficulty in popularization and application, and limited application range, etc., and achieves the effects of low equipment requirements, controllable production cost, and simple preparation process

Inactive Publication Date: 2009-11-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the photocatalytic coating uses the added nano-scale titanium dioxide (TiO2) to absorb the ultraviolet rays in the sun, and then generates highly oxidizing hydroxyl radicals and active oxygen to destroy the cell membranes of bacteria and molds and inhibit the activity of bacteria. It's long-lasting, but the paint must be exposed to light to work, which limits its range of applications
Negative ion coatings use continuously released negative ions to sterilize bacteria. Although the effect is good, its raw materials are usually processed, refined, compounded and activated from various gemstones, jade and spar, which greatly increases the product cost and is difficult to produce. get promoted
[0006] It can be seen that there are many deficiencies in the existing products in the current antibacterial paint market. In order to make up for these deficiencies, how to choose an appropriate antibacterial agent and develop a new type of safe, Effective, long-lasting, cheap antimicrobial paint holds key

Method used

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  • Antibacterium paint and preparation method thereof
  • Antibacterium paint and preparation method thereof
  • Antibacterium paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The polyaniline powder raw material doped with p-toluenesulfonic acid is ground and passed through a 100-300-mesh standard sieve for standby. Two-component acrylic polyurethane automotive topcoat is used as the base, component A is a resin mixture, and component B is an organic solvent thinner. Add the prepared polyaniline to component A of the paint, the addition ratio can be 0.1-1.0% according to the antibacterial performance requirements of the product, and then add component B, the addition ratio is 0.2-1.0L / Kg. Put the above mixture on a ball mill for 6-12 hours to make a finished product, which can be sprayed directly, baked at 50-60°C, and the concentration can be adjusted by component B during construction. Depend on Figure 9 It can be seen that the paint film after coating is smooth and smooth, and has excellent antibacterial effect.

Embodiment 2

[0036] The hydrochloric acid-doped polyaniline powder raw material is ground and passed through a 200-500-mesh standard sieve for later use. Using quick-drying alkyd enamel as the base, it is mainly used for the coating and protection of interior decoration, furniture surface, wood, wooden products, metal products and metal pipes. The prepared polyaniline is added to the alkyd enamel, and the addition ratio can be 1-5% according to the requirements for the antibacterial performance of the product. Put the mixture on a ball mill for 24h-30h to make a finished product, which can be directly brushed on the surface of the object to achieve antibacterial purpose.

Embodiment 3

[0038] Grinding the sulfuric acid-doped polyaniline powder raw material and passing it through a 100-300-mesh standard sieve for later use. Epoxy resin is used as the matrix, which is mainly used for coating the surface of metal coils. The prepared polyaniline is added to the epoxy resin, and the addition ratio can be 2-10% according to the requirements of the antibacterial performance of the product. Put the mixture on a ball mill for 24h-30h to make the finished product, add a curing agent to dry, and the finished product can be rolled on the production line.

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Abstract

The invention relates to antibacterium paint and a preparation method thereof. 0.1-20 percent of conductive macromolecule polyaniline nanometer powder doped with inorganic acid or organic sulfoacid is added into a paint base body according to the weight percent. The preparation method of the antibacterium paint comprises the following steps: adopting the conductive macromolecule polyaniline nanometer powder doped with inorganic acid or organic sulfoacid as raw materials, grinding the conductive macromolecule polyaniline nanometer powder doped with inorganic acid or organic sulfoacid, sieving by a 100-500 mesh standard sieve, continuously grinding the raw materials which are not sieved, repeating the sieving step, mixing the sieved raw materials with the paint base body, and ball-milling mixture for 6-8h by a ball mill. The invention has remarkable antibacterium effect, good product stability, simple preparation process and wide application range without toxic and side effect.

Description

technical field [0001] The invention relates to the field of material science, and in particular provides an antibacterial paint and a preparation method thereof. Background technique [0002] Paint is a traditional material used to protect and decorate the surface of objects. It has a wide variety, is economical and durable, and has obvious effects. It is widely used in various fields of family life, public facilities and military affairs. With the development of society and the continuous improvement of people's quality of life, coatings are also constantly being introduced, and many new properties have been developed, and antibacterial paints are one of them. [0003] With the increase of population and the change of environment, there are more and more outbreaks of large-scale infectious diseases. How to improve personal and environmental hygiene and prevent disasters has become the focus of attention. Antibacterial paint is a simple and easy antibacterial material. Com...

Claims

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Application Information

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IPC IPC(8): C09D5/14C09D7/12
Inventor 石南林刘宝蕴孙超宫骏刘利
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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