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Aqueous strippable paint

A coating and water-based technology, applied in the field of water-based peelable coatings, can solve problems such as inconvenient removal, easy breakage, and poor toughness

Inactive Publication Date: 2012-09-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of polyacrylic acid emulsion paint is poor toughness, it is particularly easy to break when peeled off, and it is inconvenient to remove

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the water-based peelable coating of the present embodiment is made up of each component of following percentage by weight: 93.75% polyether type water-based polyurethane Sancure 2710 (Lubrizol company, elongation at break 500%, tensile strength 17MPa), 0.20% isooctyl oleate, 0.05% wetting agent WET KL245 (Di Gao Company), 2.0% defoamer BYK-028 (BYK Company), 2.0% Tinuvin5050 (UV stabilizer and UV absorber Compound product of agent, BASF Company), 2.0% rheolate350 (specialties chemicals).

[0032] The preparation method of the water-based peelable coating of this embodiment is: weigh the polyether-type water-based polyurethane Sancure 2710, add isooctyl oleate, wetting agent WET KL245, defoamer BYK-028, Tinuvin5050 and Rheological additive rheolate 350, stir for 60 minutes, let the material mix evenly.

Embodiment 2

[0033] Embodiment 2: the water-based peelable coating of the present embodiment is made up of each component of following percentage by weight: 65.90% polyether type waterborne polyurethane Sancure 2710, 2.0% isopropyl cinnamate, 15.0% water, 2.0% Wetting agent WET KL245 (Dego Company), 0.05% defoamer BYK-028 (BYK Company), 15.0% talcum powder, 0.05% rheology modifier Viscalex VH30 (BASF Company).

[0034] The preparation method of the water-based peelable coating in this embodiment is: weigh the polyether-type water-based polyurethane Sancure 2710, add isopropyl cinnamate, wetting agent WET KL245, defoamer BYK-028, Tinuvin5050, Talc powder and rheology additive Viscalex VH30, stir for 60 minutes, let the materials mix evenly.

Embodiment 3

[0035] Embodiment 3: the water-based peelable coating of the present embodiment is made up of each component of following percentage by weight: 56.00% polyester type water-based polyurethane (Bayhydrol UH240 that Bayer material science company produces, solid content 40%, tensile strength 20MPa, Elongation at break 700%), 37.46% fatty acid modified waterborne polyurethane (Bayhydrol UH 2593 / 1 of Bayer Material Science Company, solid content 35%, high Tg resin, tensile strength 60-70MPa, elongation at break 30% ), 1.40% isooctyl laurate, 0.47% wetting agent WET KL245 (Di Gao Company), 0.47% defoamer BYK-028 (BYK Company), 2.80% glass beads, 1.40% flow Modifier rheolate350 (specialties chemicals).

[0036] The preparation method of the water-based peelable coating in this embodiment is as follows: weigh polyester-type water-based polyurethane Bayhydrol UH240 and Bayhydrol UH 2593 / 1, and add isooctyl laurate, wetting agent WET KL245, and defoamer in proportion in the stirring pro...

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Abstract

The invention provides aqueous strippable paint. The aqueous strippable paint is composed of 0.2%-2.0% of organic ester parting agent, 0%-15% of water, 0.05%-2% of wetting agent, 0.05%-2% of defoaming agent, 0%-2.0% of ultraviolet stabilizing agent and absorbent composite, 0%-15% of inorganic filler, 0.05%-2.0% of rheological auxiliaries and balance waterborne polyurethane. The aqueous strippable paint can be applied to metal, plastic or oil varnish surfaces by means of brushing, spraying, roll painting and the like and is applicable to complex or bent surfaces. The aqueous strippable paint can be easily stripped off base materials once being dried to form a film, and no residue is remained on the surfaces.

Description

technical field [0001] The invention belongs to the field of temporary protective paint and relates to a water-based peelable paint. Background technique [0002] In the manufacturing industry, parts and some finished products often lose their surface due to dust, water droplets or oil stains during processing and transportation, and sometimes scratches or ultraviolet rays also lose their surface. Therefore, temporary protection during processing and transportation becomes very important. One of the common protection methods at present is to stick a layer of low-adhesive peelable tape on the surface, and remove the tape when no protection is needed. However, for items with complex surfaces, such as curved or uneven surfaces, the tape cannot cover every place, thus leaving many air bubbles. When the tape is removed, it often leaves behind a lot of residue or "ghosting" where the air bubbles are, detracting from the aesthetics of the surface. A feasible way to solve this pr...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D175/08C09D175/06C09D7/12C09D5/20
Inventor 姚大虎马向东张玉清
Owner HENAN UNIV OF SCI & TECH
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