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Self-repairing yellowing-resistant paint surface protective film and preparation method thereof

A self-healing and protective film technology, applied in the direction of pressure-sensitive film/sheet, film/sheet adhesive, coating, etc.

Inactive Publication Date: 2021-07-06
南阳金牛彩印集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN109504142A discloses a self-repairing coating composition for paint surface protection film, including 0.1-1% of ultraviolet absorber, 5-10% of microcapsule A, 5-10% of microcapsule B, 12- 36%, curing agent 0.5-2%, surfactant 0.1-1%, and solvent 40-75%, the self-repairing coating composition is applied to the base film and cross-linked and cured, which can improve the paint protection film Brightness, aging resistance, yellowing resistance, impact resistance, scratch resistance, etc., and self-healing of scratches can be achieved through microcapsule technology, but the microcapsule repair technology can only achieve a single repair of the same scratch position

Method used

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  • Self-repairing yellowing-resistant paint surface protective film and preparation method thereof
  • Self-repairing yellowing-resistant paint surface protective film and preparation method thereof
  • Self-repairing yellowing-resistant paint surface protective film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037]Functionalized polyurethane acrylate self-repairing coating composition includes: polyhydroxya hyaloside alone modified acrylate resin (hydroxyl) 25%, polytetrahydrofuran (BASF POLYTHF2000) 20%, butyl acetate 40%, isophorone diisocyanate (Corsicon DESMODUR I) 15%, Dikutikyl Tin catalyst (US Gas DABCO T-12), silicon-containing current plane (Silok-353) 0.5%.

[0038] The preparation method of the self-repair resistance of the yellow-modified painted surface protective film is as follows:

[0039] Using a slit coating method, Ashilan AROSET 9510H acrylate pressure-senso water is applied to 50 μm PET release film layer I, drying and optical grade argotc aliphatic TPU base at 80-110 ° C temperature The film is covered with a thickness of 35 μm acrylic pressure sensitive gel layer; the functionalized polyurethane acrylate prepared above is applied to the other surface of the TPU base film, and the coating means is applied using a microidal roll. During the five sections of "80 ° ...

Embodiment 2

[0041] Functionalized polyurethane acrylate self-repairing coating composition includes: polyhydroxya hyalopyridone modified acrylate resin (hydroxyl) 20%, polycaprolactone diol (BASF PCL2000) 25%, acetate 40% of the ester, six methylene diisocyanate trim (Cousca Children DESMODUR N3300) 15%, Dikutikini catalyst (US Gas DABCO T-12), silicon-containing flow flat agent (SILOK-353) 0.5%.

[0042] The preparation method of the self-repair resistance of the yellow-modified painted surface protective film is as follows:

[0043] Using a slit coating method, Ashilan AROSET 9510H acrylate pressure-senso water is applied to 50 μm PET release film layer I, drying and optical grade argotc aliphatic TPU base at 80-110 ° C temperature The film is covered with a thickness of 30 μm acrylic pressure sensitive gel layer; the functionalized polyurethane acrylate prepared above is applied to the other surface of the TPU base film, and the coating method is coated with a microidal roll, followed by D...

Embodiment 3

[0045] Functionalized polyurethane acrylate self-repairing coating composition includes: polyhydroxylastic modified acrylate resin (hydroxyl) 25%, polytetrahydrofuran etheriol (BASF POLYTHF2000) 10%, propylene glycol methyl ether acetate 45 %, Six methylene diisocyanate trimer (Cischeon DESMODUR N3300) 20%, Dikutikatin catalyst (US gas DABCO T-12), benzole (Tinuvin234, BASF) is stable 0.5% of the agent, affinitive phenol (IRGANOX1076, BASF) antioxidant 0.5%.

[0046] The preparation method of the self-repair resistance of the yellow-modified painted surface protective film is as follows:

[0047] Using a slit coating method, Ashilan AROSET 9510H acrylate pressure-senso water is applied to 50 μm PET release film layer I, drying and optical grade argotc aliphatic TPU base at 80-110 ° C temperature The film is covered with a thickness of 35 μm acrylic pressure sensitive gel layer; the functionalized polyurethane acrylate prepared above is applied to the other surface of the TPU base ...

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Abstract

The invention discloses a self-repairing yellowing-resistant paint surface protective film and a preparation method thereof. The paint surface protective film is sequentially composed of a release film layer I, a pressure-sensitive adhesive layer, a TPU base material, a self-repairing coating and a release film layer II from bottom to top. The self-repairing coating is made of thermocuring functional polyurethane acrylate resin and comprises 20-50% of functional monomer modified acrylic resin, 10-30% of polymer polyol, 40-60% of a diluting solvent, 10-20% of a curing agent, 0.2-0.5% of a catalyst and 0.5-2% of an auxiliary agent, the TPU base material is optical-grade aliphatic TPU, the pressure-sensitive adhesive is an acrylate adhesive, and the release film layer is a PET silicone oil release film. The paint surface protective film prepared by the invention not only has excellent yellowing resistance and self-repairing performance, but also has high transparency, high glossiness, excellent scratch resistance, acid and alkali resistance, rain spot resistance and the like, so that the self-repairing yellowing-resistant paint surface protective film is suitable for the fields of automobile, furniture films and the like.

Description

Technical field [0001] The invention relates to the technical field of functional films, and in particular to a self-repairing yellowing-resistant paint protective film and a preparation method thereof. Background technique [0002] In recent years, with the gradual improvement of people's quality of life, cars have entered thousands of households like daily necessities. However, during the use of a car, it is inevitable that the original car paint will peel off, corrode, fade, become brittle and crack due to scratches and collisions, sun and rain, sand and dust adhesion, and accumulation of insect and bird feces. In order to protect the original car paint, car paint protection film (PPF) came into being. With the upgrade of technology, car clothing materials have also developed from the original PVC, TPH, and PU to today's TPU, which is thermoplastic polyurethane. In comparison, the advantages of TPU are its tough impact resistance and puncture resistance, excellent anti-...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/38C09D175/04C09D5/08
CPCC09J7/25C09J7/385C09D175/04C09D5/08C09J2475/006C09J2433/00
Inventor 程新峰赵旭峰李君君贾小平李旭阳贾佳白连青
Owner 南阳金牛彩印集团有限公司
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