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Powder coating paint remover and preparation method thereof

A technology of powder coating and paint stripper, applied in the field of paint stripping, can solve the problems of incomplete stripping, inability to fully swell and peel, poor spraying, etc., and achieve the effects of safe use, low formula cost and high paint stripping efficiency.

Inactive Publication Date: 2021-01-05
厦门斯福泽瑞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Same as traditional painting, powder coating also has poor spraying during painting. For local minor defects, it can be polished and repainted, but for serious defects, the paint needs to be removed and re-sprayed
[0003] Although the traditional dichloromethane-type acidic paint remover can swell powder coatings, some gaps between different components cannot be completely swelled and peeled off due to limited space, resulting in incomplete paint removal, and some single-sided sprayed workpieces, whose Spraying is not required on the back side, but the powder will be atomized on the workpiece. The traditional dichloromethane acid paint remover cannot swell the powder coating on the atomized part, and cannot achieve complete paint removal
Traditional acidic and alkaline paint strippers have corrosion phenomenon on active metals such as aluminum, zinc and other substrates, and indeed cannot achieve the purpose of removing paint without damaging the substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of powder paint remover that the present invention proposes, comprises following composition by weight: 70 parts of main solvent, 20 parts of auxiliary solvent, 0.5 part of accelerator, 0.5 part of penetration aid, 0.3 part of surfactant, thickener 5 parts and 7 parts of tea polyphenols.

[0022] Wherein, the main solvent is dichloromethane, the co-solvent is methanol, the accelerator is sodium hydroxide, and the concentration of sodium hydroxide is 2%, the surfactant is OP-10, and the penetration aid It is an AEO-3 emulsifier, and the thickener is magnesium stearate.

[0023] Further, the present embodiment also includes a preparation method of a powder coating paint remover, comprising the following steps:

[0024] S1: Weigh each component according to parts by weight;

[0025] S2: Slowly add methanol to sodium hydroxide while stirring, and keep stirring at 50°C until completely dissolved;

[0026] S3: Let the solution cool down to room temperature, then add...

Embodiment 2

[0029] A kind of powder paint remover that the present invention proposes comprises following composition by weight: 72 parts of main solvents, 22 parts of cosolvents, 1 part of accelerators, 0.7 parts of penetration aids, 0.4 parts of surfactants, thickeners 6 parts and 9 parts of tea polyphenols.

[0030] Wherein, the main solvent is dichloromethane, the co-solvent is methanol, the accelerator is sodium hydroxide, and the concentration of sodium hydroxide is 7%, the surfactant is OP-10, and the penetration aid It is an AEO-3 emulsifier, and the thickener is magnesium stearate.

[0031] Further, the present embodiment also includes a preparation method of a powder coating paint remover, comprising the following steps:

[0032] S1: Weigh each component according to parts by weight;

[0033] S2: Slowly add methanol into sodium hydroxide while stirring, and keep stirring at 55°C until completely dissolved;

[0034] S3: Let the solution cool down to room temperature, then add ...

Embodiment 3

[0037] A kind of powder paint stripper that the present invention proposes comprises following composition by weight: 74 parts of main solvents, 24 parts of auxiliary solvents, 2 parts of accelerators, 0.8 parts of penetration aids, 0.5 parts of surfactants, thickeners 7 parts and 11 parts of tea polyphenols.

[0038] Wherein, the main solvent is dichloromethane, the co-solvent is methanol, the accelerator is sodium hydroxide, and the concentration of sodium hydroxide is 13%, the surfactant is OP-10, and the penetration aid It is an AEO-3 emulsifier, and the thickener is magnesium stearate.

[0039] Further, the present embodiment also includes a preparation method of a powder coating paint remover, comprising the following steps:

[0040] S1: Weigh each component according to parts by weight;

[0041] S2: Slowly add methanol to sodium hydroxide while stirring, and keep stirring at 58°C until completely dissolved;

[0042] S3: Let the solution cool down to room temperature,...

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Abstract

The invention relates to the technical field of paint removal, in particular to a powder paint remover and a preparation method thereof. The invention solves the problem that most paint removers in the prior art are water systems and easily damage base materials after paint removal, and the powder paint remover comprises the following components: a main solvent, a cosolvent, an accelerant, a permeation aid, a surfactant, a thickener and tea polyphenol, wherein dichloromethane is selected as the main solvent, methanol is selected as the cosolvent, inorganic base is selected as the accelerant, OP-10 is selected as the surfactant, AEO-3 emulsifier is selected as the permeation assistant, and magnesium stearate is selected as the thickener. The invention aims at paint removal of the powder coating, the powder coating is dissolved into the paint remover by utilizing a dissolving method, so that isomeric included angles and atomized powder can be fully and completely dissolved, and paint removal of a workpiece is more thorough; the alkaline formula of an anhydrous system is adopted, so that active metals such as aluminum, zinc and the like do not damage a base material after paint removal, the formula cost is low, the paint removal efficiency is high, and the paint remover is safe and convenient.

Description

technical field [0001] The invention relates to the technical field of paint stripping, in particular to a powder paint stripper and a preparation method thereof. Background technique [0002] As an alternative to solvent-based coatings, powder coatings are widely popular in the coating market because they do not contain organic solvents, are environmentally friendly, and are easy to construct. Same as traditional painting, powder coatings also have poor spraying during painting. For local minor defects, it can be polished and repainted, but for serious defects, the paint needs to be removed and re-sprayed. [0003] Although the traditional dichloromethane-type acidic paint remover can swell powder coatings, some gaps between different components cannot be completely swelled and peeled off due to limited space, resulting in incomplete paint removal, and some single-sided sprayed workpieces, whose The back side does not require spraying, but it will atomize the powder on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04C09D9/00
CPCC09D9/04C09D9/005
Inventor 郭少超
Owner 厦门斯福泽瑞科技有限公司
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