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Preparation method of non-corrosive metal paint remover

A non-corrosive, paint stripper technology, applied in the preparation of non-corrosive metal paint strippers, and the field of paint stripping on the surface of small metal devices, can solve the problems of paint stripper toxicity and volatility, and increase the effective use Time, easy availability of raw materials, and the effect of reducing pollution

Inactive Publication Date: 2010-08-04
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the paint strippers used in industry usually contain more phenol, volatile solvents and other harmful impurities, which make the paint strippers very toxic and volatile

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] 1, the preparation of paint stripper: dichloromethane (55%), benzyl alcohol (18%), ethyl acetate (10%), surfactant Span80 (5%), ethyl acetoacetate (2%) and Water (10%) is added in the beaker of 200ml in proportion, and total volume is 100ml, stirs under the rotating speed of 2500r / min, makes it fully mix evenly, promptly makes paint remover.

[0021] 2. Paint stripping test: Put the hinge with paint layer into the paint remover. At room temperature, the paint layer starts to peel off in 3 minutes, and it falls off completely in 6 minutes. The surface of the hinge is smooth.

example 2

[0023] 1, the preparation of paint stripper: dichloromethane (55%), benzyl alcohol (18%), ethyl acetate (10%), surfactant linear alkylbenzenesulfonic acid (5%), ethyl acetoacetate Ester (2%) and water (10%) are added in the beaker of 2000ml in proportion, and total volume is 1000ml, make it fully mix evenly with homogenizer, promptly makes paint remover.

[0024] 2. Paint stripping test: Sprite, Coca-Cola and beer cans with paint layers were put into the paint remover one after another. At room temperature, the paint layer began to peel off in 2.5 minutes, and completely peeled off in 5 minutes. The surface of the cans was bright and smooth.

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Abstract

The invention aims at providing a preparation method of non-corrosive metal paint remover, which has the technical scheme that the paint remover comprises the components (by volume ratio): 55 percent of dichloromethane, 18 percent of benzyl alcohol, 10 percent of ethyl acetate, 5 percent of surface active agent Span 80 or 5 percent of surface active linear alkyl benzene sulphonic acid, 2 percent of ethyl acetoacetate and 10 percent of water. The components are added into a container according to the proportion and then are evenly mixed together by a pulp homogenizing machine or an emulsor. The method has the advantages that the composition of the paint remover contains no acid and alkali, thus not corroding substrate; volatile inhibitor can effectively reduce volatilization of all the components of the paint remover, so that the pollution for the environment can be reduced, and the effective service life of the paint remover is prolonged; the paint remover has strong dissolving capacity for the common paint layer and rapid paint removing speed; and the raw materials are easily obtained, the cost is low, the production technique is simple, and the paint remover can be repeatedly used.

Description

Technical field: [0001] The invention relates to a preparation method of a non-corrosive metal paint remover, which is especially suitable for removing paint on the surface of small metal devices and belongs to the field of fine chemicals. Background technique: [0002] The surface of metal objects can be protected or beautified by coating. However, these objects will be damaged due to physical and chemical effects during use, and lose their protective and beautifying effects. Therefore, they need to be repainted. Before painting, first remove the old paint film on the surface of the object. There are two commonly used methods for the removal of old paint films, namely mechanical methods and chemical methods. Mechanical methods, such as manual removal with a scraper, are time-consuming and labor-intensive, and are likely to cause mechanical damage to the surface of the substrate and cause dust pollution, especially for some parts with complex geometric shapes. The chemica...

Claims

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Application Information

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IPC IPC(8): C09D9/04
Inventor 张俊杰李红霞薛宁宁安玉明
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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