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Alkaline paint remover

A paint stripper, alkaline technology, applied in the direction of chemical paint/ink remover, coating, etc., to achieve the effect of high utilization, low cost and good smell

Inactive Publication Date: 2017-03-15
粟飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous paint strippers are highly praised by various spraying factories for their advantages of fast paint stripping speed and high utilization rate, but what cannot be ignored is that traditional paint strippers contain volatile carcinogens such as phenol and methylene chloride

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The preparation method of the alkaline paint remover is as follows: step 1: first pour deionized water into the reaction tank, stir under normal temperature conditions, control the stirring speed at 40-50 rpm, and then slowly add to the reaction tank Sodium hydroxide, stir until the sodium hydroxide is completely dissolved, and the temperature in the reaction tank rises to above 65°C after adding the sodium hydroxide.

[0020] Step 2: Add sorbitol into the reaction tank, control the stirring speed to 40-50 rpm, and stir until the sorbitol is completely dissolved.

[0021] Step 3: When the temperature of the mixed solution in the reaction tank drops to 40°C, slowly add ethylene glycol monobutyl ether and absolute ethanol into the reaction tank, control the stirring speed at 40-50 rpm, and stir until the ethylene glycol After the monobutyl ether and absolute ethanol are completely dissolved, continue to stir for 5-8 minutes.

[0022] Step 4: Add benzyl alcohol into the r...

Embodiment 1

[0030] An alkaline paint remover, consisting of the following components by weight: sodium hydroxide: 8.5%, propylene glycol methyl ether acetate: 13.5%, ethylene glycol monobutyl ether: 6%, sorbitol: 0.7%, benzyl alcohol: 14%, absolute ethanol: 11%, polyethylene glycol: 3.5% and deionized water: 42.8%.

[0031] The preparation method of the alkaline paint remover made into an alkaline paint remover is: Step 1: first pour deionized water into the reaction tank, stir under normal temperature conditions, control the stirring speed to 43 rpm, and then slowly Add sodium hydroxide into the reaction tank and stir until the sodium hydroxide is completely dissolved.

[0032] Step 2: Add sorbitol into the reaction tank, control the stirring speed to 42 rpm, and stir until the sorbitol is completely dissolved.

[0033] Step 3: When the temperature of the mixed liquid in the reaction tank drops to 40°C, slowly add ethylene glycol monobutyl ether and absolute ethanol into the reaction ta...

Embodiment 2

[0042] An alkaline paint remover, consisting of the following components by weight: sodium hydroxide: 9%, propylene glycol methyl ether acetate: 14%, ethylene glycol monobutyl ether: 8%, sorbitol: 0.6%, benzyl alcohol: 15%, absolute ethanol: 12%, polyethylene glycol: 4% and deionized water: 37.4%.

[0043] The preparation method of the alkaline paint remover made into alkaline paint remover is: Step 1: first pour deionized water into the reaction tank, stir under normal temperature conditions, control the stirring speed to 46 rpm, and then slowly Add sodium hydroxide into the reaction tank and stir until the sodium hydroxide is completely dissolved.

[0044] Step 2: Add sorbitol into the reaction tank, control the stirring speed to 45 rpm, and stir until the sorbitol is completely dissolved.

[0045] Step 3: When the temperature of the mixed liquid in the reaction tank drops to 40°C, slowly add ethylene glycol monobutyl ether and absolute ethanol into the reaction tank, contr...

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Abstract

The invention relates to an alkaline paint remover. The alkaline paint remover comprises the following components in percentage by weight: 8%-10% of sodium hydroxide, 13%-15% of propylene glycol methyl ether acetate, 5%-10% of ethylene glycol monobutyl ether, 0.5%-1% of sorbitol, 13%-17% of benzyl alcohol, 10%-13% of absolute ethyl alcohol, 3%-5% of polyethylene glycol and 30%-47.5% of deionized water. The alkaline paint remover is a medicament for removing various paints, powdered coatings and the like, is suitable for removing metal surface coatings of steel, copper, aluminum and various alloy components, and is high in utilization rate; after the paint removal is finished, residual paint residue is fished out, and the alkaline paint remover is covered with a lid and is sealed, so that the alkaline paint remover can be repeatedly used; and furthermore, the alkaline paint remover can be contained by virtue of containers made of stainless steel, PVC and the like, is wide in selection range and low in cost, does not contain phenol, dichloromethane, phosphorus or various heavy metals, meets the requirements of European Union WEEE&RoHS instructions and has good odor, so that the working environment of operators can be effectively improved, the environmental protection is realized, and the pollution is avoided.

Description

technical field [0001] The invention relates to the field of removing metal surface coatings applied to steel, copper, aluminum and various alloy parts, and in particular to an alkaline paint remover suitable for removing various paints, powder coatings and the like. Background technique [0002] With the continuous renewal and development of automobiles, mobile phones, computers and other industries and the rapid growth of demand, the essential spraying process is also showing a rapid growth trend. Previous paint strippers are highly praised by various spraying factories for their advantages of fast paint stripping speed and high utilization rate, but what cannot be ignored is that traditional paint strippers contain volatile carcinogens such as phenol and methylene chloride. [0003] In recent years, environmental protection and health issues have gradually attracted people's attention, and environmental protection policies have been continuously introduced. The task of im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/00
CPCC09D9/005
Inventor 粟飞
Owner 粟飞
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