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Polyurethane coating liquid, paint surface protective film and preparation method of paint surface protective film

A polyurethane coating and coating liquid technology, applied in the field of coating liquid, can solve problems such as reducing infrared reflectivity, affecting product appearance, and cracking of metal layers, so as to reduce air-conditioning energy consumption, good infrared reflection durability, reduce absorption effect

Active Publication Date: 2021-11-02
浦诺菲新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently two main methods for blocking infrared rays. One is to sputter a special metal layer on the surface of the film. This method is mostly used on the surface of polyethylene terephthalate (PET) hard substrates, TPU or Soft substrates such as PVC soft substrates are not suitable. During installation, they will be stretched and deformed, causing the uniform and dense metal layer to crack, reducing the infrared reflectivity and affecting the appearance of the product.

Method used

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  • Polyurethane coating liquid, paint surface protective film and preparation method of paint surface protective film
  • Polyurethane coating liquid, paint surface protective film and preparation method of paint surface protective film
  • Polyurethane coating liquid, paint surface protective film and preparation method of paint surface protective film

Examples

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Effect test

Embodiment 1

[0038] A polyurethane coating solution provided in this embodiment is composed of the following raw materials in parts by weight: 50 kg of water-based polyol resin (Finanmark, RJ-006A), 8 kg of water-based curing agent (Finanmark, RJ-006B), nano silver Line dispersion (RAS, ECOS HC) 100kg, 16-mercaptohexadecan-1-ol (Bailingwei Technology Co., Ltd.) 2kg and ethanol 50kg.

[0039] A kind of paint protection film that the present embodiment provides, comprises the transparent PET protective film layer with silica gel that is laminated successively with a thickness of 44 μm, the above-mentioned polyurethane coating with a thickness of 10 μm, and a thermoplastic polyurethane (TPU) film layer (TPU) with a thickness of 150 μm ( Argotec, 49510), acrylic pressure-sensitive adhesive layer (Ashland, 9510H) with a thickness of 20 μm and a PET release film layer with a thickness of 36 μm.

[0040] The present embodiment provides a kind of preparation method of paint protection film, it com...

Embodiment 2

[0045] A polyurethane coating solution provided in this embodiment is composed of the following raw materials in parts by weight: 50 kg of water-based polyol resin (Finanmark, RJ-006A), 10 kg of water-based curing agent (Finanmark, RJ-006B), nano silver Line dispersion (RAS, ECOS HC) 120kg, 16-mercaptohexadecan-1-ol (Bailingwei Technology Co., Ltd.) 2.4kg and ethanol 60kg.

[0046] A kind of paint protection film that the present embodiment provides, comprises the transparent PET protective film layer with silica gel that is laminated successively with a thickness of 44 μm, the above-mentioned polyurethane coating with a thickness of 10 μm, and a thermoplastic polyurethane (TPU) film layer (TPU) with a thickness of 150 μm ( Argotec, 49510), acrylic pressure-sensitive adhesive layer (Ashland, 9510H) with a thickness of 25 μm and a PET release film layer with a thickness of 36 μm.

[0047] The present embodiment provides a kind of preparation method of paint protection film, it ...

Embodiment 3

[0052] A polyurethane coating solution provided in this embodiment is composed of the following raw materials in parts by weight: 50 kg of water-based polyol resin (Finanmark, RJ-006A), 12 kg of water-based curing agent (Finanmark, RJ-006B), nano silver Line dispersion (RAS, ECOS HC) 150kg, 16-mercaptohexadecan-1-ol (Bailingwei Technology Co., Ltd.) 3kg and ethanol 70kg.

[0053] A kind of paint protective film provided by the present embodiment comprises a layer of transparent PET protective film with silica gel with a thickness of 57 μm, the above-mentioned polyurethane coating with a thickness of 10 μm, and a thermoplastic polyurethane (TPU) film layer with a thickness of 150 μm ( Argotec, 49510), acrylic pressure-sensitive adhesive layer (Ashland, 9510H) with a thickness of 20 μm and a PET release film layer with a thickness of 50 μm.

[0054] The present embodiment provides a kind of preparation method of paint protection film, it comprises the following concrete steps: ...

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Abstract

The invention discloses a coating liquid, and particularly relates to a polyurethane coating liquid composed of the following raw materials in parts by weight: 30 to 50 parts of water-based polyol resin, 5 to 12 parts of a water-based curing agent, 100 to 200 parts of a nano silver wire dispersion liquid, 0.5 to 5 parts of 16-sulfydryl hexadecane-1-ol, and 50 to 100 parts of a diluent. Meanwhile, the invention also discloses a paint surface protection film and a preparation method of the paint surface protection film. The water-based polyol resin and the water-based curing agent in the coating liquid are matched with silver nanowires (namely infrared reflection particles) in the silver nanowire dispersion liquid, and an obtained polyurethane coating layer can reflect part of infrared rays in sunlight. Therefore, the technical problem that the polyurethane coating liquid has an infrared reflection effect is solved. When a base material (such as an automobile paint surface protective film) is coated with the coating liquid, part of infrared rays in sunlight can be reflected, and the coating liquid has good infrared reflection durability.

Description

Technical field [0001] The present invention relates to a coating liquid, in particular to a polyurethane coating liquid. At the same time, the present invention also relates to a paint protective film and a preparation method of the paint protective film. Background technique [0002] Paint protective film, also known as "invisible car clothing", is a transparent protective film attached to the surface of the car body. This product not only has the function of self-healing scratches, but also can effectively prevent scratches and sand hits. It also isolates the contact between the car paint and the air, which can prevent acid rain, insects, bird droppings, etc. from corroding the car body paint surface. [0003] The existing general paint protection film can block the damage to the paint surface caused by rain, ultraviolet rays and pollutants, but it does not protect the car from the damage caused by infrared rays. The temperature of the car body exposed to the summer sun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/33C09J7/29
CPCC09D175/04C09D5/004C09J7/29C09J2203/306C08K2201/011C08K2003/0806C08K2201/003C08K2201/004C09J2475/006C09J2433/00C09J2301/122C09J2301/302C09J2427/006C08K9/04C08K7/00C08K3/08
Inventor 王岩吕鑫张江凤李玉
Owner 浦诺菲新材料有限公司
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