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Scratch-resistant and anti-fouling TPU vehicle body protection film and production process thereof

A production process and protective film technology, applied in the field of anti-scratch and anti-fouling TPU body protective film and its production process, can solve the problems affecting the service life of the anti-scratch coating, and achieve superior anti-scratch and anti-fouling properties and good transparency , Improve the effect of gloss

Inactive Publication Date: 2019-06-04
SHANGHAI NAR INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-scratch coating cannot have anti-fouling ability at the same time, and the body still needs to be cleaned frequently to keep the body clean, which indirectly affects the service life of the anti-scratch coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An anti-scratch and anti-fouling TPU body protection film, comprising a TPU film, a pressure-sensitive adhesive layer and a frosted PET release film, the upper surface of the TPU film is provided with an anti-scratch and anti-fouling coating, the composition of the anti-scratch and anti-fouling coating is :

[0050] Main resin: 75 parts of polyester polyurethane;

[0051] 10 parts of filler PMMA microbeads; the particle size is 10 μm

[0052] 4.5 parts of cross-linking agent aziridine;

[0053] Leveling agent Acrylate 1.5 parts

[0054] Solvent Water 20.0.

[0055] Process steps:

[0056] 1) The TPU film is subjected to high-voltage corona treatment;

[0057] 2) Dust removal treatment on the TPU film;

[0058] 3) Apply a scratch-resistant and anti-fouling coating on the corona-treated surface of the TPU film by rotary screen coating, and the coating amount is 10g / m 2 , the viscosity of the coating slurry is controlled at 300cps;

[0059] 4) The anti-scratch and ...

Embodiment 2

[0065] An anti-scratch and anti-fouling TPU body protection film, comprising a TPU film, a pressure-sensitive adhesive layer and a wire-drawn PET release film, the upper surface of the TPU film is provided with an anti-scratch and anti-fouling coating, the composition of the anti-scratch and anti-fouling coating is :

[0066] Main resin The composition of the acrylic resin of 25 parts of hexafunctional polyurethane acrylic resin, 35 parts of trifunctional polyurethane acrylic resin and 10 parts of difunctional polyurethane acrylic resin

[0067] 8 parts of filler PMMA microbeads

[0068] Filler Silica 1.5 parts

[0069] Photoinitiator 1-hydroxy-cyclohexyl-phenyl ketone 0.2 parts

[0070] Leveling agent Acrylate 0.5 parts

[0071] Adhesion promoter Phosphate 0.5 part

[0072] Process steps:

[0073] 1) High-voltage corona treatment is performed on both sides of the TPU film;

[0074] 2) Attach the TPU film to the brushed PET release film through the pressure-sensitive adh...

Embodiment 3

[0081] An anti-scratch and anti-fouling TPU body protection film, comprising a TPU film, a pressure-sensitive adhesive layer and a frosted PET release film, the upper surface of the TPU film is provided with an anti-scratch and anti-fouling coating, the composition of the anti-scratch and anti-fouling coating is :

[0082] Main resin 20 parts of hexafunctional urethane acrylic resin, 20 parts of 3.5 functional urethane acrylic resin, 20 parts of difunctional urethane acrylic resin. Crosslinking agent: 2.0 parts of aziridine

[0083] Initiator 2,4,6 (trimethylbenzoyl) diphenylphosphine oxide 0.1 part

[0084] Filler PMMA microbeads 10 parts

[0085] Filler Al2O3 3 parts

[0086] Thinner ethyl acetate 12 parts

[0087] Thinner dimethyl ether phthalate 8 parts

[0088] Process steps:

[0089] 1) The TPU film is subjected to high-voltage corona treatment;

[0090] 2) Dust removal treatment on the TPU film;

[0091] 3) Apply a scratch-resistant and anti-fouling coating on th...

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Abstract

The invention discloses a scratch-resistant and anti-fouling TPU vehicle body protection film, which comprises a base material layer and a glue layer arranged on the lower portion of the base materiallayer, the base material layer is a TPU film, the upper surface of the TPU film is provided with an scratch-resistant and anti-fouling coating, the scratch-resistant and anti-fouling coating comprises, by mass, 50-85 parts of a main body resin, 0.01-5 parts of an initiator or / and cross-linking agent, 5-50 parts of a filler, 0-20 parts of an auxiliary agent, and 0-30 parts of a solvent, the fillercomprises nanometer polymer micro-beads self-assembled into micro-nano clusters, and the main body resin is a composition of polyester type polyurethane or / and acrylic resin. According to the presentinvention, the novel scratch-resistant and anti-fouling TPU vehicle body protection film is formed by improving the formula of the scratch-resistant and anti-fouling coating, such that the TPU vehicle body protection film can integrate the effects of scratch resistance and stain resistance through the scratch-resistant and anti-fouling coating compared with the existing protection film.

Description

technical field [0001] The invention relates to a protective film, in particular to a scratch-resistant and anti-fouling TPU car body protective film and a production process thereof. Background technique [0002] TPU is a kind of polymer elastic material, known as a new environmental protection material in the 21st century. The special molecular structure of TPU determines that it has excellent physical properties, such as: high elasticity, wear resistance, high strength, strong hardness, easy ductility and excellent temperature adaptability; and non-toxic, waterproof, breathable, oil-resistant, water-resistant , Resistant to mold. Moreover, it has good temperature resistance and can maintain elasticity for a long time in the range of -60°C-200°C. Therefore, TPU materials are favored in more and more industries, and more and more body stickers based on TPU are used in the automotive industry. [0003] With the continuous development of the material industry, the simple T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/50C09J7/25C09J7/38C09D175/14C09D175/06C09D5/16
Inventor 游爱国王宪委
Owner SHANGHAI NAR INDAL
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