Antibacterial powder coating and preparation method thereof

An antibacterial powder and paint technology, applied in the field of antibacterial powder paint and its preparation, can solve problems such as affecting the use of paint, prone to mildew, and reducing aesthetics, and achieve the effect of preventing bacterial metabolism

Inactive Publication Date: 2020-11-27
陈金姑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the use of the existing paint, a large number of bacteria will grow on the surface of the paint film, which is prone to mildew, which will affect the use of the paint and reduce its aesthetics, which is not conducive to market promotion

Method used

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  • Antibacterial powder coating and preparation method thereof
  • Antibacterial powder coating and preparation method thereof
  • Antibacterial powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An antibacterial powder coating, made of the following raw materials in parts by weight: 50 parts of E-12 epoxy resin, 8 parts of titanium dioxide, 3 parts of zinc oxide, 0.5 part of leveling agent 6588, 8 parts of antibacterial filler, 0.5 part of brightening agent C701;

[0041] The powder coating is made by the following steps:

[0042] Step S1: Weighing the above-mentioned raw materials, adding the raw materials into a stirred tank, and stirring for 10 min under the condition of a rotating speed of 500 r / min, to obtain a mixture;

[0043] Step S2: adding the mixture into a twin-screw extruder, extruding and cooling at a temperature of 85° C., to obtain a coating base material;

[0044] Step S3: cutting and pulverizing the coating base material, and passing through a 15 μm sieve to obtain an antibacterial powder coating.

[0045] Described antibacterial filler is made by following steps:

[0046] Step A1: Dissolve sodium hydroxide in deionized water to prepare a d...

Embodiment 2

[0054] An antibacterial powder coating, made of the following raw materials in parts by weight: 60 parts of E-12 epoxy resin, 9 parts of titanium dioxide, 4 parts of zinc oxide, 1 part of leveling agent 6588, 9 parts of antibacterial filler, 0.6 part of brightening agent C701;

[0055] The powder coating is made by the following steps:

[0056] Step S1: Weighing the above-mentioned raw materials, adding the raw materials into a stirring tank, and stirring for 13 minutes under the condition of a rotating speed of 600 r / min, to obtain a mixture;

[0057] Step S2: adding the mixture into a twin-screw extruder, extruding and cooling at a temperature of 100° C., to obtain a coating base material;

[0058] Step S3: cutting and pulverizing the paint base material, and passing through a 18 μm sieve to obtain an antibacterial powder paint.

[0059] Described antibacterial filler is made by following steps:

[0060] Step A1: Dissolve sodium hydroxide in deionized water to prepare a d...

Embodiment 3

[0068] An antibacterial powder coating, made of the following raw materials in parts by weight: 80 parts of E-12 epoxy resin, 10 parts of titanium dioxide, 5 parts of zinc oxide, 1.5 parts of leveling agent 6588, 10 parts of antibacterial filler, 0.8 parts of brightening agent C701;

[0069] The powder coating is made by the following steps:

[0070] Step S1: Weighing the above-mentioned raw materials, adding the raw materials into a stirring tank, and stirring for 15 minutes under the condition of a rotating speed of 800 r / min, to obtain a mixture;

[0071] Step S2: adding the mixture into a twin-screw extruder, extruding and cooling at a temperature of 155° C., to obtain a coating base material;

[0072] Step S3: cutting and pulverizing the coating base material, and passing through a 20 μm sieve to obtain an antibacterial powder coating.

[0073] Described antibacterial filler is made by following steps:

[0074] Step A1: Dissolve sodium hydroxide in deionized water to pre...

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Abstract

The invention discloses an antibacterial powder coating and a preparation method thereof. The powder coating is prepared from the following raw materials in parts by weight: 50-80 parts of E-03 epoxyresin, 8-10 parts of titanium dioxide, 3-5 parts of zinc oxide, 0.5-1.5 parts of leveling agent 6588, 8-10 parts of antibacterial filler and 0.5-0.8 part of a brightening agent C701. An antibacterialfiller is prepared; when the antibacterial filler is in contact with bacteria; metal ions on the surface of the antibacterial filler can penetrate through cell membranes to enter bacteria bodies, andcan be reacted with sulfydryl and amino on protease, which leads to enzyme inactivation, death of microorganisms or loss of the ability to divide and proliferate, at the same time, a bacterial cell membrane can be destroyed to denature protein, so that bacterial metabolism is prevented, and the bacterial cell membrane reacts with a head group of acidic phospholipid in the bacterial membrane to cause reduction of the permeability of the cell membrane and leakage of cell sap such as potassium ions in cells so as to kill bacteria.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to an antibacterial powder paint and a preparation method thereof. Background technique [0002] With the increasing variety of coating products and the continuous expansion of the application range, the coating industry has become an important independent industrial production part of the chemical industry. In the coatings industry, powder coatings are an emerging new material industry, because they do not contain organic solvents, have excellent physical and mechanical properties, safe production and construction, and have better chemical resistance and weather resistance. Due to the advantages of recycling, easy automation of coating and excellent coating performance, it is widely used in many fields such as household appliances, indoor and outdoor components, and transportation. It has only been more than 30 years since powder coatings entered the country....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/03C09D5/14C09D7/61
CPCC08K2003/2241C08K2003/2296C08K2201/011C09D5/033C09D5/14C09D163/00C08L5/08C08K13/06C08K3/22C08K3/36C08K9/06C08K5/3492
Inventor 陈金姑
Owner 陈金姑
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