Reflective powder coating for traffic signs and preparation method thereof

A technology for powder coatings and traffic signs, applied in the field of chemical coatings, can solve problems such as no specific solutions, achieve excellent adhesion, ensure production quality, and simplify the production process.

Inactive Publication Date: 2020-02-04
佛山市涂亿装饰材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, in the field of powder coating preparation, there are still many practical problems that need to be dealt with in its practical application, and no specific solutions have been proposed.

Method used

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  • Reflective powder coating for traffic signs and preparation method thereof
  • Reflective powder coating for traffic signs and preparation method thereof
  • Reflective powder coating for traffic signs and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A reflective powder coating for traffic signs, made of the following components by weight: 20-40 parts of polyacrylic resin, 1-12 parts of antioxidant, 8-12 parts of curing agent, and 1-3 parts of leveling agent , 3-8 parts of mineral fusion oil, 0.5-1 part of benzoin, 1-2 parts of modified mixed nano filler, 5-10 parts of glass microspheres, 7-11 parts of hexamethyldisiloxane; wherein, the poly The hydroxyl value of the acrylic resin is 35-65 mgKOH / g.

[0034]Wherein, the antioxidant is one of 2,6-tertiary butyl-4-methylphenol and bis(3,5-tertiary butyl-4-hydroxyphenyl)sulfide. The curing agent is more than one of dicyandiamide, aliphatic amines, aromatic amines, imidazoles, polycarboxylic acids and urotropine curing agents. The leveling agent is one of polyacrylate, silicon-containing acrylate, polysiloxane or a combination thereof. The modified mixed nanofiller is barium sulfate, mica powder, strontium aluminate and titanium dioxide mixed according to the ratio of ...

Embodiment 2

[0042] A reflective powder coating for traffic signs, made of the following components by weight: 20 parts of polyacrylic resin, 12 parts of antioxidant, 8 parts of curing agent, 3 parts of leveling agent, 3 parts of mineral fusion oil, benzoin 1 part, 1 part of modified mixed nano filler, 10 parts of glass microspheres, 7 parts of hexamethyldisiloxane; wherein, the hydroxyl value of the polyacrylic resin is 65 mgKOH / g.

[0043] Wherein, the antioxidant is 2,6-tertiary butyl-4-methylphenol. The curing agent is dicyandiamide, aliphatic amines and aromatic amines mixed in a ratio of 1:2:1. The leveling agent is polyacrylate. The modified mixed nanofiller is a modified mixed nanofiller prepared by nano-modification technology after mixing barium sulfate, mica powder, strontium aluminate and titanium dioxide in a ratio of 1:2:1:3.

[0044] In addition, a preparation method of a reflective powder coating for traffic signs is also provided, comprising the steps of:

[0045] (1) P...

Embodiment 3

[0050] A reflective powder coating for traffic signs, which is made of the following components by weight: 40 parts of polyacrylic resin, 12 parts of antioxidant, 12 parts of curing agent, 3 parts of leveling agent, 3 parts of mineral fusion oil, benzoin 0.5 parts, 2 parts of modified mixed nanofillers, 10 parts of glass microspheres, and 7 parts of hexamethyldisiloxane; wherein, the hydroxyl value of the polyacrylic resin is 65 mgKOH / g.

[0051] Wherein, the antioxidant is one of bis(3,5-tertiary butyl-4-hydroxyphenyl) sulfide. The curing agent is a mixture of fatty amines and aromatic amines. The leveling agent is a mixture of polyacrylate and silicon-containing acrylate in a ratio of 1:1. The modified mixed nanofiller is a modified mixed nanofiller prepared by nano-modification technology after mixing barium sulfate, mica powder, strontium aluminate and titanium dioxide in a ratio of 5:7:1:1.

[0052] In addition, a preparation method of a reflective powder coating for tr...

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Abstract

The invention provides a reflective powder coating for traffic signs and a preparation method thereof. In the preparation process of the coating, a mixed filler is subjected to nano-modification and then added into a heating reaction kettle to interact with other components together, so that a more uniform molten-state mixture can be formed, and the fineness of the powder coating is promoted; a UVradiation or electron radiation apparatus is arranged to promote the mixture to have smaller particles and to promote the combination degree of the mixture; and further a monitoring apparatus is arranged and can monitor the real-time morphology of the mixture in the reactor in time, and thereby the stirring degree during the whole production process is more accurately controlled, the quality of production is ensured, not only the production process is simplified, but also the quality of production is ensured, and the production cost is reduced. The problems that agglomeration is easy to occur, and the process is difficult to accurately control in the production process of the powder coating are solved. The powder coating is used as a reflective material for traffic signs, and has the advantages of environmental protection, strong adhesion and weather resistance.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a reflective powder coating for traffic signs and a preparation method thereof. Background technique [0002] Powder coatings can be divided into two categories: thermoplastic and thermosetting. Thermoplastic powder coatings use thermoplastic resin as a film-forming substance. Its characteristic is that the synthetic resin becomes soft as the temperature rises and becomes hard after cooling. This process can be repeated many times, and it will gradually age after each change. Finally, it becomes a non-plastic powder, and the existing powder is prone to unstable processing during processing and preparation, and the powder coating is prone to agglomeration after pulverization, resulting in a failure to guarantee the quality of the product. At present, most of the coatings of reflective signs use liquid coatings. Such liquid coatings have problems such as low coating film strength,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/03C09D5/33C09D7/62C09D7/80B01J19/12B01J19/08B01J19/18B02C23/08
CPCB01J19/085B01J19/123B01J19/18B02C23/08C08K2003/2241C08K2003/3045C08K2201/011C08L2201/08C09D5/004C09D5/033C09D133/04C09D7/80C08K13/06C08K9/04C08K9/00C08K3/30C08K3/34C08K3/24C08K3/22C08K7/20
Inventor 吴越黄洪司徒粤赫金德石非凡徐涛
Owner 佛山市涂亿装饰材料科技有限公司
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