Antibiotic type coating material of polyester-epoxy resin powder modified by inorganic nano composite antimicrobial, and its prepn. method

A technology of epoxy resin powder and compound antibacterial agent, applied in epoxy resin coatings, powder coatings, polyester coatings and other directions, can solve the problems of reducing antibacterial resistance, poor heat resistance, restricting application, etc., to reduce discoloration, The effect of strengthening market competitiveness and reducing product cost

Inactive Publication Date: 2003-12-24
攀枝花钢铁有限责任公司钢铁研究院 +1
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AI Technical Summary

Problems solved by technology

[0004] The present inventor finds that nano-titanium dioxide has a certain effect on improving the antibacterial properties of powder coatings, but the presence of ultraviolet light, oxygen or water is required to play a bactericidal effect, but satisfactory antibacterial effects cannot be obtained; while common quaternary ammonium salt type antibacterial Organic antibacterial agents such as antibacterial agents have the disadvantages of poor heat resistance, easy decomposition, and short service life. Most of the common inorganic antibacterial agents contain silver ions, which are easily transformed into brown silver oxide or reduced to black elemental silver by ultraviolet catalysis. The discoloration not only reduces its Bacteria resistance, and there are restrictions on its application to white or light-colored paints, and the high cost of using a large amount of silver restricts its application in a wider range

Method used

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Embodiment 1

[0026]

Embodiment 2

[0028]

Embodiment 3

[0031] The preparation method of the antibacterial polyester-epoxy resin powder coating modified by inorganic nanocomposite antibacterial agent:

[0032] 1. Weigh the porous nano-titanium dioxide cerium-supported antibacterial agent with an average particle size of 10-100nm, epoxy resin, polyester resin, pigments and fillers, and additives, and add them into the mixer to pre-mix evenly.

[0033] 2. The above-mentioned mixed materials are transported to the screw extruder by a feeder for melting and mixing, pressed into thin slices by a tablet press, cooled, crushed by a crusher, and then transported to an air classifying mill (ACM) for fine grinding. Crush, collect most of the crushed semi-finished products through a cyclone separator, and then remove the sundries and coarse powder through a sieving machine to obtain a finished antibacterial polyester-epoxy resin powder coating modified by a nanocomposite antibacterial agent. And pack it.

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Abstract

A nano-class inorganic composite antibacterial agent modified antibacterial polyester-epoxy resin powder paint is prepared from antibacterial agent (nano porous TiO2 carried Ce ions), epoxy resin polyester resin, pigment, filler, and assistant through premixing, fusing-extruding-mixing, cooling, pressing sheets, breaking, pulverizing, and sieving. Its advantages are high bacteria-suppressing rate(99% ore more), high adhesion, toughness and impact strength, and high hardness and chemical resistance.

Description

1. Technical field [0001] The invention relates to an antibacterial polyester-epoxy resin powder coating modified by an inorganic nanocomposite antibacterial agent and a preparation method thereof, belonging to the field of powder coating preparation. 2. Background technology [0002] US Patent No. 5759746, Fabrication process using a multi-layer antireflective layer, reports the preparation of an assembly antireflective coating technology with nano-silicon dioxide added on semiconductor integrated circuit boards. This technology is mainly to prevent some semiconductor integrated circuit boards from For example, a kind of protective layer provided by the influence of ultraviolet rays on the etching performance of circuit boards in semiconductor memory and photolithography technology; Chinese patent CN1228107A, antibacterial powder coatings, electric furnaces using the coatings and production methods of antibacterial coatings, reported A method for preparing an antibacterial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/03C09D163/00C09D167/00
Inventor 曹建军张波涂铭旌汪斌华郭刚熊玉竹
Owner 攀枝花钢铁有限责任公司钢铁研究院
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