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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 removal, etc., and achieve the effect of improving storage stability, improving stability, and flexible use

Inactive Publication Date: 2018-01-30
GUANGDONG SANVO CHEM IND TECH
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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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Preparation method of formic acid microcapsules

[0057] a. Add 5 parts of toluene and 1.5 parts of ethanol to a three-necked flask with a reflux device, and slowly add 7 parts of ethyl cellulose to disperse until completely dissolved in a constant temperature water bath at 70-75°C and at a speed of 300-500r / min. Disperse for 5 to 10 minutes to obtain a dispersion; then slowly add a mixture of 18 parts of formic acid and 27 parts of curing agent urea into the dispersion; slowly add non-solvent petroleum ether under stirring until the ethyl cellulose coagulates, stop heating; place, naturally cool to room temperature, filter, wash, and dry to obtain ethylcellulose-coated microcapsules.

[0058] b. Put 20 parts of water into the three-necked flask, heat it to 60°C, slowly add 6 parts of sodium alginate while stirring, after the sodium alginate is completely dissolved, add 18 parts of microcapsules coated with ethyl cellulose, and continue stirring After 10 minutes, s...

Embodiment 2

[0064] (1) The preparation method of formic acid microcapsules: except that 8 parts of toluene and 9 parts of ethyl cellulose are used, the remaining components are the same as in (1) in Example 1.

[0065] (2) A paint remover whose formula comprises by weight:

[0066]

[0067] In this example, 100 parts of paint remover can also be filled into the aerosol can, after vacuuming, valve opening and sealing, 6 parts of carbon dioxide and 22 parts of HFO-1234ze propellant can be filled, and the head can be installed Get an aerosol paint remover.

[0068] In other embodiments, the propellant can also be 8 parts carbon dioxide, 12 parts HFO-1234ze, or 10 parts carbon dioxide, 5 parts HFO-1234ze.

Embodiment 3

[0070] (1) The preparation method of formic acid microcapsules: except that 7 parts of toluene and 10 parts of ethyl cellulose were used, the remaining components were the same as in (1) in Example 1.

[0071] (2) A paint remover whose formula comprises by weight:

[0072]

[0073] In this example, it is also possible to fill 100 parts of paint remover into the aerosol can, after vacuuming, releasing the valve and sealing, fill 6 parts of carbon dioxide, 22 parts of HFO-1234yf propellant, and press the head. Get an aerosol paint remover.

[0074] In other embodiments, the propellant can also be 8 parts of carbon dioxide, 12 parts of HFO-1234yf, or 10 parts of carbon dioxide, 5 parts of HFO-1234yf.

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PUM

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Abstract

The invention discloses a paint remover. The formula of the paint remover comprises mixed DBE (Dibasic Acid Ester), solvent oil, propylene glycol monomethyl ether, dimethyl carbonate, dichloromethane,methyl alcohol, formic acid microcapsules, paraffin, an emulsifying agent, a thickening agent and an aversive agent. By adopting the technical scheme, the paint remover has the following advantages that: 1, formic acid is subjected to double microencapsulation, so that the formic acid is prevented from corroding an iron tank, and the stability of a product is improved; 2, the surface temperatureof a paint film is reduced by utilizing a rapid vaporization heat absorption characteristic of a propellant, and meanwhile, the paraffin and the thickening agent are added to synergistically retard the volatilization of a low-boiling-point solvent, so that a micro-molecular solvent has enough time to permeate and expand to peel off the paint film; therefore, the paint remover is applicable to improve the paint removal efficiency of the paint on a vertical surface or an inclined surface; 3, the emulsifying agent is added, which helps to clean residual paraffin, so that the adhesion force of a new paint layer is not influenced; 4, the aversive agent is added to prevent the poisoning of people caused by eating the paint by mistake, and construction personnel are reminded to perform good construction protection; 5, the paint remover has the characteristics of flexibility and easiness in use, good atomizing effect and the like.

Description

technical field [0001] The invention relates to a coating or paint film removal technology, in particular to 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. 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 it 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 of mechanical means to r...

Claims

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Application Information

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IPC IPC(8): C09D9/04
Inventor 郑吕凤陈炳耀张志良
Owner GUANGDONG SANVO CHEM IND TECH
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