Composite strippable emulsion, strippable protective coating and application thereof

A protective coating and composite technology, which is applied in the field of composite peelable emulsion, can solve the problems of reducing the surface gloss of the workpiece and protecting the substrate with a single selectivity, so as to achieve no environmental pollution, easy peeling, and environmentally friendly materials Effect

Inactive Publication Date: 2020-08-14
广州市首牵化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing conventional strippable emulsions have a relatively single selectivity for protecting the substrate, and after stripping, the glossiness of the surface of the workpiece will often be significantly reduced

Method used

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  • Composite strippable emulsion, strippable protective coating and application thereof
  • Composite strippable emulsion, strippable protective coating and application thereof
  • Composite strippable emulsion, strippable protective coating and application thereof

Examples

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preparation example Construction

[0064] In the present invention, the preparation method of the composite peelable emulsion is not particularly limited, and it can be mixed and used in a manner well known to those skilled in the art. After mixing, add water mineral oil defoamer and liquid thickener to stir and mix, then add pH regulator to adjust the pH value of the system to the range of 7.5-8.5.

[0065] In the present invention, the method of using the composite peelable emulsion is not particularly limited, and the composite peelable emulsion can be applied to the protective substrate by brushing, roller coating, spraying, etc., and then naturally dried and solidified. Can. There are no special restrictions on the amount of emulsion used or the thickness of the coating, which can be adjusted according to specific needs.

[0066] In the present invention, since the active functional groups participating in the crosslinking reaction are set in the polymer molecular chain of the acrylic emulsion, the probab...

Embodiment 1

[0087] Embodiment 1: provide a kind of compound type peelable emulsion to be made up of the raw material of following weight part:

[0088]

[0089] The acrylic self-film-forming emulsion is the Carboset PL-958 of Lubrizol; the acrylic self-crosslinking emulsion is the POLEEN A-3020 of Shouyan Technology; the mineral oil defoamer is the Foamaster MO2160 of BASF; the liquid thickener RHEOMAX WP-327 hydrophobically modified alkali-swellable associative thickener of Shouchen Technology.

[0090] After mixing the acrylic self-film-forming emulsion and acrylic self-crosslinking emulsion according to the proportion, add water mineral oil defoamer and liquid thickener to stir and mix, then add pH regulator to adjust the pH value of the system to 7.5-8.5 A complex peelable emulsion is obtained within the process.

[0091] The composite peelable emulsion in this example is tested according to the GB / T11175-2002 standard and has a viscosity of 2040mPa.s, a pH value of 7.95, and a so...

Embodiment 2

[0092] Embodiment 2: provide a kind of compound type peelable emulsion to be made up of the raw material of following weight part:

[0093]

[0094]

[0095] The acrylic self-film-forming emulsion is the Carboset PL-958 of Lubrizol; the acrylic self-crosslinking emulsion is the POLEEN A-3020 of Shouyan Technology; the mineral oil defoamer is the Foamaster MO2160 of BASF; the liquid thickener RHEOMAX WP-327 hydrophobically modified alkali-swellable associative thickener of Shouchen Technology.

[0096] After mixing the acrylic self-film-forming emulsion and acrylic self-crosslinking emulsion according to the proportion, add water mineral oil defoamer and liquid thickener to stir and mix, then add pH regulator to adjust the pH value of the system to 7.5-8.5 A complex peelable emulsion is obtained within the process.

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Abstract

The invention relates to the technical field of protective products, in particular to a composite strippable emulsion, a strippable protective coating and application thereof. The composite strippableemulsion is prepared from the following raw materials: acrylic acid self-film-forming emulsion and acrylic acid self-crosslinking emulsion in a weight ratio of (65-85): (10-25). The composite strippable emulsion has relatively strong cohesion, the protective coating is not liable to break in the stripping process and has no residue on the base material; in addition, the adhesive force between thecomposite strippable emulsion and a base material is moderate, good adhesion of a coating film to a base material can be ensured, a product is effectively protected from being damaged in the transportation process, the product can be easily stripped off when stripping is needed, the glossiness of the surface of the base material such as woodware, metal, glass, plastic and concrete is not reduced,and the comprehensive performance of the base material is not influenced. In addition, the composite strippable emulsion can be independently used, and can also be compounded with a surface coating for use.

Description

technical field [0001] The invention relates to the technical field of protective products, in particular to a composite peelable emulsion, a peelable protective coating and applications thereof. Background technique [0002] In the manufacturing industry, automobiles, mechanical parts, and some precision instruments often cause dust, water vapor, oil, or even radiation to damage the equipment to a certain extent during the process of processing, transportation, and storage. There will also be scratches or surface damage caused by collisions, which will affect the appearance of the product, resulting in performance degradation or even scrapping. Strippable emulsion or paint, as a special functional paint, is brushed on the surface of the material workpiece, and after drying, it can form a closed protective film and play a temporary protective role. After the protection task is completed, the coating film can be completely peeled off manually, and the surface of the workpiec...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D5/20C09D7/61
CPCC08K2003/265C08L2201/06C08L2205/025C08L2205/03C08L2205/035C09D5/20C09D7/61C09D133/04C08L33/04C08K3/346C08K3/26
Inventor 刘正阳钟瑞峰
Owner 广州市首牵化工有限公司
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