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Paint surface protective film with repairing and anti-scratch functions and preparation method thereof

A protective film and anti-scratch technology, which is applied to the surface coating liquid device, coating, transportation and packaging, etc., can solve the problems of no UV resistance, weak anti-scratch performance, and affecting service life, etc., to achieve Increase impact resistance, strong adhesion, and prevent falling off

Active Publication Date: 2022-02-25
东莞市晶致光学薄膜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a paint protection film with repairing and scratch resistance and a preparation method thereof, which solves the problem that the existing paint protection film has weak repairing resistance to scratches and does not have the ability to resist ultraviolet rays. effect, which will easily cause the aging of the protective film and affect the service life

Method used

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  • Paint surface protective film with repairing and anti-scratch functions and preparation method thereof
  • Paint surface protective film with repairing and anti-scratch functions and preparation method thereof
  • Paint surface protective film with repairing and anti-scratch functions and preparation method thereof

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Effect test

Embodiment 1

[0043] The invention provides a technical solution: a protective film for repairing scratch-resistant paint surface, which is prepared from the following components by mass: 4.8 parts of polyamide resin, 3.3 parts of transparent soft glue, 11.0 parts of TPU resin, and ultraviolet shielding agent 2.2 parts, 4.5 parts of curing agent, 1.1 parts of epoxy resin, 0.9 parts of emulsifier, 2.3 parts of surface modifier and 5.1 parts of organic solvent.

[0044] The transparent soft glue is PVC and polyamide elastomer.

[0045] The curing agent is dimethylbenzylamine, and the ultraviolet shielding agent is nano titanium dioxide.

[0046] The surface modifier is a silane coupling agent, and the organic solvent is butanone and toluene.

[0047] The preparation method of the above-mentioned protective film with repairing and anti-scratch paint surface comprises the following steps:

[0048] S1. Weighing: Use weighing equipment to weigh the ingredients for the preparation of the protect...

Embodiment 2

[0056] The invention provides a technical solution: a protective film for repairing scratch-resistant paint surface, which is prepared from the following components by mass: 5.0 parts of polyamide resin, 4.5 parts of transparent soft glue, 12.0 parts of TPU resin, and ultraviolet shielding agent 2.8 parts, 4.6 parts of curing agent, 1.6 parts of epoxy resin, 1.3 parts of emulsifier, 4.4 parts of surface modifier and 6.5 parts of organic solvent.

[0057] The transparent soft rubber is polyolefin elastomer.

[0058] The curing agent is aliphatic isocyanate, and the ultraviolet shielding agent is nano titanium dioxide.

[0059] The surface modifier is one or more of titanate coupling agent and aluminate coupling agent, and the organic solvent is one or more of methyl isobutyl ketone and ethyl acetate.

[0060] The preparation method of the above-mentioned protective film with repairing and anti-scratch paint surface comprises the following steps:

[0061] S1. Weighing: Use wei...

Embodiment 3

[0069] The invention provides a technical solution: a protective film for repairing scratch-resistant paint surface, which is prepared from the following components by mass: 5.6 parts of polyamide resin, 5.0 parts of transparent soft glue, 13.0 parts of TPU resin, and ultraviolet shielding agent 3.1 parts, 4.8 parts of curing agent, 2.0 parts of epoxy resin, 1.6 parts of emulsifier, 6.0 parts of surface modifier and 7.8 parts of organic solvent.

[0070] The transparent soft glue is polyurethane elastomer.

[0071] The curing agent is alicyclic isocyanate, and the ultraviolet shielding agent is nano titanium dioxide.

[0072] The surface modifier is stearic acid, and the organic solvent is one or more of butyl acetate and propylene glycol methyl ether.

[0073] The preparation method of the above-mentioned protective film with repairing and anti-scratch paint surface comprises the following steps:

[0074] S1. Weighing: Use weighing equipment to weigh the ingredients for the...

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Abstract

The invention discloses a paint surface protective film capable of repairing and resisting scratches and a preparation method thereof and relates to the technical field of protective films. The protective film is prepared from following components in parts by mass: 4.8 to 5.6 parts of polyamide resin, 3.3 to 5.0 parts of transparent flexible glue, 11.0 to 13.0 parts of TPU resin, 2.2 to 3.1 parts of ultraviolet screening agent, 4.5 to 4.8 parts of curing agent, 1.1 to 2.0 parts of epoxy resin, 0.9 to 1.6 parts of emulsifier, 2.3 to 6.0 parts of surface modifier and 5.1 to 7.8 parts of organic solvent. The product comprises TPU resin, a curing agent and epoxy resin which are mixed with one another to generate a cross-linking reaction to form an insoluble and infusible high polymer with a three-way net structure. By adopting the structure, the paint surface protective film has excellent insulating property, strong adhesive force and chemical corrosion resistance. In addition, due to the addition of the surface modifier, a layer of organic coating can be formed on the surface of the paint surface protection film, and then the effect of deformation recovery is achieved, and therefore, the paint surface protective film has an automatic repairing function.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a protective film capable of repairing scratch-resistant paint surfaces and a preparation method thereof. Background technique [0002] The current paint protection film is a layer of transparent protective film attached to the paint on the surface of the product. It is mainly used in the automotive aftermarket, car beauty and other industries, which can protect the original car paint of the car from external damage. [0003] However, the existing paint protection films on the market cannot be self-repaired after being scratched by external factors, which affects the appearance, making users need to replace the protective film, and does not have the effect of resisting ultraviolet rays, which is easy to cause the protective film Aging affects the service life. For this reason, workers in the field have proposed a protective film with repairing and anti-scratch paint surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J7/06C08L75/04C08L77/00C08L27/06C08L63/00C08K3/22C08K5/17B05C9/04B05C11/10B65H18/10
CPCC08J5/18C08J7/065B05C9/04B05C11/1039B65H18/103C08J2375/04C08J2477/00C08J2463/00C08K2003/2241C08K5/17
Inventor 陆德威王祥雷闫会朝粟康伟王春生闫佳
Owner 东莞市晶致光学薄膜有限公司