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Water-based strippable coating composition

A composition and coating technology, applied in polyester coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of unsatisfactory flexibility and adhesion of the film layer, and achieve good peeling performance, good water resistance, and paint good film properties

Active Publication Date: 2014-04-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of unsatisfactory flexibility and adhesiveness of the film layer prepared by the water-based peelable coating composition of the prior art, the present invention provides a coating that can be prepared with good flexibility and adhesiveness, acid resistance, alkali resistance and water resistance. Water-based peelable coating composition with excellent heat resistance and aging resistance and easy-to-peel film layer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Coating composition

[0022] UH2593 / 1 20g

[0023] UH240 3.5g

[0024] Ethylene glycol butyl ether 3g

[0025] Deionized water 1.5g

[0026] TEGO Foamex 825 0.2g

[0027] TEGO ViscoPlus 3060 0.2g

[0028] (2) mixed

[0029]Mix 20g of UH2593 / 1 and 3.5g of UH240, and add 3g of ethylene glycol butyl ether dropwise at a stirring speed of 600r / min; g TEGO Foamex 825, 0.2g TEGO ViscoPlus 3060, and mix uniformly to obtain coating sample S1.

Embodiment 2

[0031] Adopt the method identical with embodiment 1 to mix paint composition, difference is paint composition, specifically as follows:

[0032] Lacper 4110 20g

[0033] Tekspro 7350 3.5g

[0034] Ethylene glycol butyl ether 3g

[0035] Deionized water 1.5g

[0036] TEGO Foamex 825 0.2g

[0037] TEGO ViscoPlus 3060 0.2g

[0038] Paint sample S2 was prepared.

Embodiment 3

[0040] Adopt the method identical with embodiment 1 to mix paint composition, difference is paint composition, specifically as follows:

[0041] Lacper 4210 20g

[0042] Tekspro 7350 3.5g

[0043] Ethylene glycol butyl ether 3g

[0044] Deionized water 1.5g

[0045] TEGO Foamex 825 0.2g

[0046] TEGO ViscoPlus 3060 0.2g

[0047] Paint sample S3 was prepared.

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PUM

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Abstract

The invention provides a water-based strippable coating composition, which contains an aliphatic polyurethane dispersion, an aliphatic polyester dispersion, a film-forming assistant and water. With respect to 100 parts by weight of the aliphatic polyurethane dispersion, the content of the aliphatic polyester dispersion is 10-40 parts by weight, the content of the film-forming assistant is 10-25 parts by weight, and the content of water is 5-10 parts by weight. The prepared film layer has good water resistance, acid-alkali resistance and weatherability, as well as good stripping performance, can realize large area integral stripping, and can be used for temporary protection of products and components. With good flexibility, the film can be further processed (like CNC, polishing, washing and the like), and the paint film performance is good and is not influenced. Meanwhile, the coating prepared from the coating composition provided by the invention can be applied on plastics, metals, glass and other substrates. The coating can be attached to the substrates by dip coating, brush coating, spray coating and other simple processes. The processes are simple and easy to implement, and are environmental friendly.

Description

technical field [0001] The present invention relates to a water-based strippable coating composition. Background technique [0002] As a temporary protective coating, the peelable protective coating can prevent equipment and components from being scratched, bruised, worn, polluted or corroded by microorganisms, oil, salt spray, moisture, etc. Electrochemical corrosion and chemical corrosion will cause equipment surface damage, performance degradation, or even failure and scrapping, thereby prolonging the service life of equipment or improving product yield. Strippable coatings are widely used in electronics, automobiles, machinery, construction, medical and other fields due to their excellent properties. However, with the development of technology, the performance of peelable protective coatings is getting higher and higher, especially in the field of electronics. In order to avoid product scratches caused by further processing of parts (such as CNC, polishing, washing, etc...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D167/00C09D5/20C09D5/08C09D7/12
Inventor 于典崔静娜罗文海
Owner BYD CO LTD