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Self-repairing polyurethane heat insulation film as well as preparation method and application thereof

A polyurethane heat-insulating film and self-repairing technology, applied in polyurea/polyurethane coatings, coatings, fire-resistant coatings, etc., can solve the problems that the surface of polymer films is easily stained, has limited thermal insulation performance, and is not resistant to solvents , to achieve the effect of reducing light transmission and heat transfer, high optical properties, and good scratch resistance

Active Publication Date: 2021-02-05
ZHEJIANG SHICHUANG OPTICAL FILM MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of the polymer film is easily stained and not resistant to scratches, and is not resistant to solvents. The thermal insulation performance is limited, and there is still a large room for performance improvement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The self-healing polyurethane heat-insulating film is composed of a thermoplastic polyurethane film layer, a heat-insulating layer and a self-healing coating in sequence; it is specifically prepared by the following steps: on the thermoplastic polyurethane film layer, 1 part of tungsten trioxide powder is coated, 2 parts of dispersant, 0.1 part of photoinitiator, 5 parts of polyurethane acrylate, 4 parts of trifluorooctyl methacrylate, 6 parts of 2-(perfluorooctyl) ethyl methacrylate, 1 part of hollow glass microspheres parts, 0.3 parts of cross-linking agent, light-cured to form a heat-insulating layer; then use the roller coating process to apply the raw materials of the self-repairing coating on the surface of the heat-insulating layer, and then bake. Dispersant is A series of dispersants, the photoinitiator is Iragacure184, and the crosslinking agent is 4-phenylbenzophenone.

[0035] Wherein, the raw material formula of the thermoplastic polyurethane film layer inc...

Embodiment 2

[0047] The self-healing polyurethane heat-insulating film is composed of a thermoplastic polyurethane film layer, a heat-insulating layer and a self-healing coating in sequence; it is specifically prepared by the following steps: on the thermoplastic polyurethane film layer, 1 part of tungsten trioxide powder is coated, 2 parts of dispersant, 0.1 part of photoinitiator, 5 parts of polyurethane acrylate, 4 parts of trifluorooctyl methacrylate, 6 parts of 2-(perfluorooctyl) ethyl methacrylate, 1 part of hollow glass microspheres parts, 0.3 parts of cross-linking agent, light-cured to form a heat-insulating layer; then use the roller coating process to apply the raw materials of the self-repairing coating on the surface of the heat-insulating layer, and then bake. Dispersant is A series of dispersants, the photoinitiator is Iragacure369, and the crosslinking agent is 4-phenylbenzophenone.

[0048] Wherein, the raw material formula of the thermoplastic polyurethane film layer in...

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Abstract

The invention discloses a self-repairing polyurethane heat insulation film as well as a preparation method and application thereof. The heat insulation film is formed by sequentially arranging a thermoplastic polyurethane film layer, a heat insulation layer and a self-repairing coating. The thermoplastic polyurethane film layer is prepared from the following raw materials: TPU master batch and modified nano indium antimony oxide. The raw material formula of the heat insulation layer comprises tungsten trioxide powder, a dispersing agent, a photoinitiator, polyurethane acrylate, tridecafluorooctyl methacrylate, 2-(perfluorooctyl) ethyl methacrylate, hollow glass beads and a cross-linking agent. The heat insulation film is good in heat insulation performance, capable of reducing light transmission and heat transfer and generating heat insulation, inflaming retarding and abrasion resisting effects, has a self-repairing function, is good in scratch resistance and has a wide application prospect in the aspect of automobile safety protection films.

Description

technical field [0001] The invention relates to the field of film preparation, in particular to a self-repairing polyurethane heat-insulating film and its preparation method and application. Background technique [0002] At present, there are many types of car paint protection films on the market. Most of the structures are made of ordinary PVC film and glued on the car paint to protect it from external friction and damage. However, ordinary PVC film has a certain It is milky white and translucent, and it will darken the paint surface of the car after paving and sticking. It has poor wear resistance, weak heat and cold resistance, and is prone to scratches, blisters, and peeling off of the protective film, which is very unsightly. [0003] Flexible polymer films, such as TPU (thermoplastic polyurethane) films, have high optical transparency and excellent deformability, so they are widely used in the field of film sticking. However, the surface of the polymer film is easily ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/05C08J7/046C08L75/04C08K9/10C08K9/06C08K3/22C09D175/14C09D175/06C09D7/61C09D5/18
CPCC08J7/05C08J7/046C08J7/042C09D175/14C09D175/06C09D7/61C09D7/70C09D5/18C08J2375/04C08K9/10C08K9/06C08K2201/011C08K3/2279C08K2003/2258C08J2475/14C08J2475/06C08K13/04C08K7/28C08K3/22
Inventor 张红生
Owner ZHEJIANG SHICHUANG OPTICAL FILM MFG
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