Copper ion antibacterial/antiviral thermosetting powder coating and preparation method thereof

A powder coating and anti-virus technology, applied in powder coatings, antifouling/underwater coatings, polyester coatings, etc., to achieve energy saving, easy promotion, and shorten curing time

Inactive Publication Date: 2021-07-23
XIAN XINYU FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current ordinary powder coatings only play the role of decoration and mechanical protection against external forces.

Method used

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  • Copper ion antibacterial/antiviral thermosetting powder coating and preparation method thereof
  • Copper ion antibacterial/antiviral thermosetting powder coating and preparation method thereof
  • Copper ion antibacterial/antiviral thermosetting powder coating and preparation method thereof

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Effect test

preparation example Construction

[0037] A preparation method of a copper ion antibacterial / antiviral thermosetting powder coating, comprising the following operations:

[0038] 1) Measuring raw materials according to the composition: 50-70 parts of polyester resin and / or epoxy resin, 0-10 parts of curing agent, 30-50 parts of pigment / filler, 0.3-1 part of accelerator, 3-5 parts 1-2 parts of leveling agent, 1-2 parts of antibacterial nano-copper oxide, 2-4 parts of composite copper oxide antibacterial agent and 1.5-3 parts of antioxidant;

[0039] Place the weighed raw materials in a high-speed mixer and mix them evenly;

[0040] 2) Put the mixed material into the extruder for hot-melt extrusion, wherein the curing temperature and time of hot-melt extrusion are: 185-195°C, 10-15min to solidify into a film, or 125-135°C, 5- 6min to solidify into film, or 105~115℃, 10~15min to cure into film, or 205~215℃, 8~10min to solidify into film;

[0041] The extruded tablet is cooled at room temperature;

[0042] 3) pu...

Embodiment 1

[0047] An anti-UV pure polyester powder coating for outdoor use, adding copper factor antibacterial nano-copper oxide and composite copper oxide antibacterial agent to the polyester powder coating, the finished product obtained through mixing, hot-melt extrusion, and crushing;

[0048] Composed of the following mass percent raw materials:

[0049] Saturated polyester 50-65%, curing agent 7-8.5%, pigment and filler 38-50%, accelerator 0.3-1%, leveling agent 3-5%, antibacterial nano-copper oxide 1-2%, composite copper oxide Antibacterial agent 2-4%, antioxidant 1.5-3%, anti-ultraviolet agent 2-4%;

[0050] Described pigment, filler are BaSO4, SIO2, mica powder and pigment, can produce the pure polyester powder coating of medium temperature and low temperature curing of outdoor use, and its curing temperature and time are: medium temperature 190 ℃ ± 5 / 15min solidify into Film, low temperature: 130℃±5 / 6min to cure and form a film.

Embodiment 2

[0052] An epoxy / polyester powder coating for indoor modification. In the epoxy / polyester powder coating, copper factor antibacterial nano-copper oxide and composite copper oxide antibacterial agent are added. After mixing, hot-melt extrusion, The finished products obtained by crushing and screening are used for indoor metal coating;

[0053] It is composed of the following mass percentage raw materials: 20-30% epoxy resin, 30-40% polyester resin, 0.5-1% accelerator, 3-5% leveling agent, 40-60% pigment and filler, antibacterial nano-oxidation Copper 1-2%, composite copper oxide antibacterial agent 2-4%, antioxidant 1.5-2%, described pigment, filler are BaSO4, SiO2, CaCO3, and pigment;

[0054] Modified epoxy powder coatings with medium and low temperature curing can be produced. The curing temperature and time are: medium temperature 180°C±5 / 15min, low temperature 130°C±5 / 10min to form a film.

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Abstract

The invention discloses a copper ion antibacterial/antiviral thermosetting powder coating and a preparation method thereof, and the copper ion antibacterial/antiviral thermosetting powder coating is prepared from the following components in parts by mass: 50-70 parts of polyester resin and/or epoxy resin, 0-10 parts of curing agent, 30-50 parts of pigment/filler, 0.3-1 part of accelerant, 3-5 parts of flatting agent, 1-2 parts of antibacterial nano copper oxide, 2-4 parts of a composite copper oxide antibacterial agent, and 1.5-3 parts of an antioxidant, mixing the raw materials, carrying out hot-melt extrusion, and crushing to obtain the powder coating. The curing film-forming temperature is low, the curing time is short, the production cost is reduced, and energy is saved; the antibacterial and antiviral functions are realized, the survival of new coronavirus is inhibited, and other bacteria are inhibited, so that the method is one of effective measures for resisting epidemic situations of public facilities at present.

Description

technical field [0001] The invention belongs to the technical field of metal surface coating protection, and relates to a copper ion antibacterial / antiviral thermosetting powder coating and a preparation method thereof. Background technique [0002] Powder coating is a coating technology introduced in my country in the 1950s. It enjoys the reputation of "4E coating" and is the most environmentally friendly coating. With the promulgation of the national environmental protection policy and the "paint restriction order" in some large and medium-sized cities, the application prospect of powder coatings will be more extensive. [0003] At present, the new crown virus is raging, and human beings are facing new challenges. Among them, the surface protection of public facilities has become a very weak link. There have been many reports about the positive virus detected on the surface of public facilities. Compared with the surface of the object in contact, it was found that copper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/02C09D5/03C09D5/14
CPCC08K2003/2248C08K2201/011C08K2201/014C09D5/03C09D5/14C09D163/00C09D167/00C08K13/02C08K3/22C08L63/00C08L67/00C08K13/04
Inventor 苏治果
Owner XIAN XINYU FINE CHEM
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