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Polyurethane system antibacterial powder paint, preparation method of polyurethane system antibacterial powder paint and coating

An antibacterial powder and powder coating technology, applied in the preparation of polyurethane system antibacterial powder coatings, polyurethane system antibacterial powder coatings, thermosetting antibacterial coatings, can solve the problems of unstable antibacterial effect, etc., and achieve the effect of strong antibacterial durability

Inactive Publication Date: 2017-12-29
霍文波 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to improve the above determination, the existing patent CN11770007C is an antibacterial epoxy powder coating modified by an inorganic nanocomposite antibacterial agent and its preparation method, which discloses a nanocomposite antibacterial agent prepared by using porous nano-titanium dioxide loaded with cerium series ions. The obtained powder coating, but this type of powder coating needs to be exposed to light to have a good antibacterial effect, and the antibacterial effect is unstable

Method used

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  • Polyurethane system antibacterial powder paint, preparation method of polyurethane system antibacterial powder paint and coating
  • Polyurethane system antibacterial powder paint, preparation method of polyurethane system antibacterial powder paint and coating
  • Polyurethane system antibacterial powder paint, preparation method of polyurethane system antibacterial powder paint and coating

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preparation example Construction

[0055] Correspondingly, the present invention also provides a kind of preparation method of polyurethane system antibacterial powder powder, comprises the following steps:

[0056] (1) Weigh 45-55 parts of hydroxyl polyester resin, 6-12 parts of isocyanate curing agent, 0.1-2.5 parts of antibacterial agent, 20-28 parts of titanium dioxide, 10-15 parts of precipitated barium sulfate, 0.5-1.5 parts 1 part of leveling agent, 0.2-0.5 part of benzoin, 0.5-1 part of brightening agent;

[0057] (2) Add the weighed raw materials into the mixer for pre-mixing;

[0058](3) The pre-mixed material is sent to the melt mixing extruder to melt and extrude the melt mixed material;

[0059] (4) The molten mixture material is pressed into thin slices through a tablet cooler, and cooled and broken into thin and small sheet materials by a crusher;

[0060] (5) Transport the flake materials to an air classifying mill for fine crushing, and collect most of the crushed semi-finished products throu...

Embodiment 1

[0070] 1. Formula:

[0071] Including the following raw materials in parts by weight:

[0072] 48 parts of polyester resin;

[0073] 9 parts of isocyanate;

[0074] 0.2 parts of nano silver ion antibacterial agent;

[0075] 26 parts of titanium dioxide;

[0076] 13 parts of precipitated barium sulfate;

[0077] Leveling agent 1 part;

[0078] Benzoin 0.4 parts;

[0079] Brightening agent 0.7 part.

[0080] 2. Preparation method:

[0081] (1) Weigh 48 parts of hydroxyl polyester resin, 9 parts of isocyanate curing agent, 0.2 parts of nano silver ion antibacterial agent, 26 parts of titanium dioxide, 13 parts of precipitated barium sulfate, 1 part of leveling agent, 0.4 part of benzoin according to the formula, 0.7 parts brightening agent;

[0082] (2) Add the weighed raw materials into the mixer for pre-mixing;

[0083] (3) The pre-mixed material is sent to the melt mixing extruder to melt and extrude the melt mixed material;

[0084] (4) The molten mixture material ...

Embodiment 2

[0090] 1. Formula:

[0091] Including the following raw materials in parts by weight:

[0092] 50 parts of polyester resin;

[0093] 10 parts of isocyanate;

[0094] 0.3 parts of nano zinc ion antibacterial agent;

[0095] 25 parts of titanium dioxide;

[0096] 12 parts of precipitated barium sulfate;

[0097] Leveling agent 1.2 parts;

[0098] Benzoin 0.3 parts;

[0099] Brightening agent 0.8 part.

[0100] 2. Preparation method:

[0101] (1) According to the formula, 50 parts of hydroxyl polyester resin, 10 parts of isocyanate curing agent, 0.3 parts of nano zinc ion antibacterial agent, 25 parts of titanium dioxide, 12 parts of precipitated barium sulfate, 0.8 parts of leveling agent, 0.3 parts of benzoin, 0.8 parts brightening agent;

[0102] (2) Add the weighed raw materials into the mixer for pre-mixing;

[0103] (3) The pre-mixed material is sent to the melt mixing extruder to melt and extrude the melt mixed material;

[0104] (4) The molten mixture material ...

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Abstract

The invention discloses polyurethane system antibacterial powder paint, which is prepared from the following raw materials in parts by weight: 45 to 55 parts of hydroxy polyester resin, 6 to 12 parts of isocyanate curing agents, 0.1 to 2.5 parts of antibacterial agents, 20 to 28 parts of titanium pigment, 10 to 15 parts of precipitated barium sulfate, 0.5 to 1.5 parts of flatting agents, 0.2 to 0.5 part of benzoin and 0.5 to 1 part of optical brighteners. The invention also discloses a preparation method of the polyurethane system antibacterial powder paint and a coating. After the polyurethane system antibacterial powder paint is used, the characteristics of stable antibacterial effect and long-period effective antibacterium are realized; the adaptation to the addition of different kinds of antibacterial agents can be realized.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a polyurethane system antibacterial powder coating; the invention also relates to a preparation method of a polyurethane system antibacterial powder coating and a thermosetting antibacterial coating. Background technique [0002] Powder coating is a new type of solvent-free 100 parts solid powder coating. It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. In medical equipment, kitchen utensils, food processing equipment, etc., coatings with antibacterial function are required to be coated on the surface of the metal shell, which not only protects the metal from oxidation and damage, but also has a spectrum antibacterial function to keep it microbiologically clean environment of. [0003] The existing antibacterial powder coatings have technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D175/06C09D5/03C09D7/12
CPCC09D5/14C08K2201/011C09D5/033C09D175/06
Inventor 霍文波
Owner 霍文波
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