Aid-containing thermosetting powder coating

A technology of thermosetting powder and additives, used in powder coatings, coatings, etc., can solve the problems of shrinkage, unevenness and unevenness of the coating film.

Active Publication Date: 2014-09-03
华威控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the thermosetting powder coatings in the above patents often suffer from shrinkage, unevenness, and roughness of the coating film during the coating process, and are absorbed by some low-boiling po

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment is a kind of thermosetting powder coating containing auxiliary agent, including resin, curing agent, pigment, filler and auxiliary agent, wherein, the content of said auxiliary agent is 5%, and said resin, curing agent, The sum of the content of pigments, fillers and additives is 95%. The additives include the first premix and the second premix. The first premix includes liquid leveling agent, fumed silica , the second premix includes benzoin, 701 wetting agent, hydrogenated castor oil, ethylene bisstearamide, polytetrafluoroethylene wax and butyral.

[0021] Specifically, the formulation of the additive is as follows,

[0022] 1. Auxiliary formula:

[0023] 403 liquid leveling agent 12

[0024] Fumed silica 8

[0025] Benzoin 12

[0026] 701 Wetting agent 12

[0027] Hydrogenated castor oil 20

[0028] Ethylene bis stearamide 6

[0029] PTFE wax 4

[0030] Butyral 6

[0031] Total 100 copies

[0032] Auxiliary synthesis manufacturing:

[0033...

Embodiment 2

[0058] In the present embodiment, the method for preparing the aforementioned thermosetting powder coating additives comprises the following steps:

[0059] 1) Add 8 parts of fumed silica to the high-speed dispersion mixer;

[0060] 2) Start the stirring paddle, then slowly pour in 12 parts of liquid leveling agent, and stir for about 10 minutes, so that the above-mentioned gas phase silica can completely absorb the liquid leveling agent and disperse evenly to obtain the first premix;

[0061] 3) Add the second premix and stir and homogenize for 5 minutes, so that the first premix and the second premix are completely stirred evenly;

[0062] 4) Shut down and discharge, and put the mixture formed by stirring the first premix and the second premix into the oven for drying;

[0063] 5) Grind the dried mixture through a micro-powder mill;

[0064] 6) Pack the auxiliary agent prepared after grinding.

[0065] Wherein, in the step 3), the process of adding the second premix inclu...

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PUM

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Abstract

The invention discloses an aid-containing thermosetting powder coating which comprises the following raw materials: resin, a curing agent, a pigment, fillers and aids, wherein the content of the aids is 4%, and the total content of the resin, the curing agent, the pigment, the fillers and the aids is 96%; the aids comprise a first premixture and a second premixture; the first premixture comprises a liquid leveling agent and fumed silica; the second premixture comprises benzoin, a 701 wetting agent, hydrogenated castor oil, ethylene bis stearamide, polytetrafluoroethylene wax and butyral.

Description

technical field [0001] The invention relates to the technical field of thermosetting powder coatings, in particular to a thermosetting powder coating containing additives. Background technique [0002] Powder coating is a new type of solvent-free 100% 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. [0003] Thermosetting powder coating is a kind of powder coating. In the prior art, a thermosetting powder coating is disclosed in Chinese Invention Patent Publication No. 201310749823, which includes the following raw materials, which are expressed in weight percentage: poly Ester resin: 60-80%; Curing agent: 4-6%; Leveling agent: 0.8-1.2%; Wetting agent: 0.8-1.5%; Defoamer: 0.8-1.5%; UV absorber: 1- 6%; Tetrafluorowax: 0.8-1.5%; Titanium dioxide: 2-12%; Mica powder: 2-8%; Barium sulfate: 4-11%; Inorganic pi...

Claims

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Application Information

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IPC IPC(8): C09D5/03C09D201/00C09D7/12
Inventor 陈玉才
Owner 华威控股集团有限公司
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