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A kind of preparation method of paint remover

A paint remover and solvent oil technology, applied in the direction of chemical paint/ink remover, coating, etc., can solve the problems of undisclosed paint stripping, etc., to improve storage stability, slow down volatilization and slope loss rate, and eliminate quality Effect

Active Publication Date: 2020-11-27
广东阜和实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above comparative documents focus on solving the technical defects of improving paint stripping efficiency and reducing volatility, but do not involve how to avoid or prevent organic acids from corroding tanks, eliminating potential quality and safety hazards; nor disclose the improvement of paint stripping on vertical surfaces and inclined surfaces. and the removal of residual paraffin

Method used

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  • A kind of preparation method of paint remover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of preparation method of paint remover, comprises the following steps by weight proportioning:

[0044] S1. Pretreatment of paraffin wax, mix 8 parts of DBE mixed dibasic acid ester, 4.997 parts of propylene glycol methyl ether and 2.2 parts of fully refined paraffin wax, heat at 86-110°C, dissolve until visually transparent and free of lumps, and then the paraffin wax is melted mixture;

[0045] S2. Add 1.8 parts of 200# solvent oil, 1 part of 120# solvent oil, and 25 parts of dimethyl carbonate into the reaction tank, and heat to 36-42°C while stirring;

[0046] S3. Under the state of stirring and heat preservation at 36-42°C, add the paraffin wax mixture, and disperse for 12-20 minutes until the mixture is uniform;

[0047] S4. Add 10 parts of methanol and 33 parts of dichloromethane, keep warm at 35-42°C and disperse evenly, then add 8 parts of formic acid microcapsules and 2.5 parts of oleic acid triethanolamine emulsifier and continue to disperse for 5-10 ...

Embodiment 2

[0055] A kind of preparation method of paint remover, comprises the following steps by weight proportioning:

[0056] S1. Pretreatment of paraffin wax, mix 10 parts of DBE mixed dibasic acid ester, 3.998 parts of propylene glycol methyl ether and 1.2 parts of OP wax, heat at 86-110°C, dissolve until visually transparent and free of lumps, and obtain a paraffin wax melt mixture ;

[0057] S2. Add 2.5 parts of 200# solvent oil, 1 part of 120# solvent oil, and 21 parts of dimethyl carbonate into the reaction tank, and heat to 36-42°C while stirring;

[0058] S3. Under the state of stirring and heat preservation at 36-42°C, add the paraffin wax mixture, and disperse for 12-20 minutes until the mixture is uniform;

[0059] S4. Add 7 parts of methanol and 42 parts of dichloromethane, keep warm at 35-42°C and disperse evenly, then add 5 parts of formic acid microcapsules and 3.5 parts of oleic acid triethanolamine emulsifier and continue to disperse for 5-10 minutes;

[0060] S5. A...

Embodiment 3

[0065] A kind of preparation method of paint remover, comprises the following steps by weight proportioning:

[0066] S1. Pretreatment of paraffin wax, mix 12 parts of DBE mixed dibasic acid ester, 2.996 parts of propylene glycol methyl ether, 0.7 part of fully refined paraffin wax, and 1.2 parts of OP wax, heat at 86-110 ° C, and dissolve until visually transparent and free of lumps , to obtain the paraffin wax melt mixture;

[0067] S2. Add 1 part of 200# solvent oil, 0.5 part of 120# solvent oil, and 18 parts of dimethyl carbonate into the reaction tank, and heat to 36-42°C while stirring;

[0068] S3. Under the state of stirring and heat preservation at 36-42°C, add the paraffin wax mixture, and disperse for 12-20 minutes until the mixture is uniform;

[0069] S4. Add 8 parts of methanol and 48 parts of dichloromethane, keep warm at 35-42°C and disperse evenly, then add 3 parts of formic acid microcapsules and 3 parts of oleic acid triethanolamine emulsifier and continue ...

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Abstract

The invention discloses a preparation method of a paint remover. The preparation method comprises the following steps: S1, mixing mixed DBE (Dibasic Acid Ester), propylene glycol monomethyl ether andparaffin, and heating and melting the mixture to obtain a transparent molten paraffin mixture without block-shaped objects; S2, adding solvent oil and dimethyl carbonate into a reacting tank, and heating with stirring; S3, in the state of stirring and keeping the temperature of 36 to 42 DEG C, adding the molten paraffin mixture, dispersing, and mixing uniformly; S4, adding methyl alcohol and dichloromethane, insulating heat, dispersing uniformly, then adding formic acid microcapsules and an emulsifying agent, and dispersing continuously; S5, adding a thickening agent and an aversive agent, insulating the heat, dispersing uniformly, filtering and discharging to obtain the paint remover. The paint remover prepared by adopting the technical scheme has the following advantages that: 1, formicacid is subjected to double microencapsulation, so that the formic acid is prevented from corroding an iron tank, and a hidden danger of corrosion perforation is eliminated; 2, a propellant which canbe vaporized rapidly to absorb heat is optimized to reduce the temperature of a coating surface and cooperates with the paraffin and the thickening agent to retard the volatilization rate, the loss rate and the like of a product.

Description

technical field [0001] The invention relates to a coating or paint film removal technology, in particular to the preparation of a paint remover with stable quality, slow volatilization rate, slowing down the loss of paint remover on vertical surfaces and inclined surfaces, efficient paint removal, and easy cleaning of residues method. Background technique [0002] Paint is a kind of coating that can form a coating film on the surface of an object, and has protection, decoration, marking and other special functions. With the development of my country's economy and the progress of science and technology, coatings will provide more and more perfect and powerful functions at more levels. However, the coating is damaged during use, the coating is aging, or needs to be removed and repainted due to individual pursuit of aesthetics and functions. [0003] There are several methods of removing old coatings, including physical and chemical methods. Physical methods include the use ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D9/00C09D9/04
Inventor 陈炳耀郑吕凤宁智勇
Owner 广东阜和实业有限公司
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