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A base film for TPU high-transparency paint protection film, TPU film and preparation method thereof

A technology of protective film and base film, applied in the field of film manufacturing, can solve the problems such as the lack of perfect unity of lamination effect and anti-yellowing performance, and achieve good product quality stability, excellent high elasticity, and easy to control the process. Effect

Active Publication Date: 2021-03-02
广东旭坤新特材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in existing products, the bonding effect and yellowing resistance of the product cannot be perfectly unified

Method used

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  • A base film for TPU high-transparency paint protection film, TPU film and preparation method thereof
  • A base film for TPU high-transparency paint protection film, TPU film and preparation method thereof
  • A base film for TPU high-transparency paint protection film, TPU film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Material mixing: Firstly, the polyether-type TPU raw material with a hardness of 90A and functional additives such as slip agent are fully mixed in a high-speed mixer and dispersed evenly. The ratio can be 86% TPU particles, 5% slip agent 1753, 3% antireflection masterbatch, 6% anti-UV-531 agent

[0040] 2. Drying and dehumidification of materials: Put the above mixed materials into a dehumidifier for 4 hours and set the temperature at 85°C

[0041] 3. Processing of TPU casting film: The above-mentioned fully dried materials are made into casting film through casting equipment.

[0042] Heating and mixing are carried out in three sections of the screw:

[0043] The temperature of the first feeding section is set at: 170°C for 8 minutes;

[0044] The temperature of the second compression section is set at 183°C for 15 minutes;

[0045] The temperature of the third discharge section is set at: 189°C for 5 minutes;

[0046] Die head temperature setting: 185°C;

[0...

Embodiment 2

[0052] 1. Material mixing: Firstly, the raw material of polyester TPU with a hardness of 85A and functional additives such as slip agent are fully mixed in a high-speed mixer and dispersed evenly. The ratio can be 84% TPU particles, 4% slip agent 1753, 6% antireflection masterbatch, 6% anti-UV-531 agent

[0053] 2. Drying and dehumidification of materials: Put the above mixed materials into a dehumidifier for 4 hours and set the temperature at 90°C

[0054] 3. Processing of TPU casting film: The above-mentioned fully dried materials are made into casting film through casting equipment.

[0055] Heating and mixing are carried out in three sections of the screw:

[0056] The temperature of the first feeding section is set at: 175°C for 8 minutes;

[0057] The temperature of the second compression section is set at: 180°C for 13 minutes;

[0058] The temperature of the third discharge section is set at: 190°C for 5 minutes;

[0059] Die head temperature setting: 195°C;

[00...

Embodiment 3

[0065] 1. Material mixing: Firstly, the polyester TPU raw material with a hardness of 90A and functional additives such as slip agent are fully mixed in a high-speed mixer and dispersed evenly. The ratio can be 90% TPU particles, 3% slip agent 1753, 2% antireflection masterbatch, 5% anti-UV-531 agent

[0066] 2. Drying and dehumidification of materials: Put the above mixed materials into a dehumidifier to dry for 4 hours, and set the temperature at 85°C;

[0067] 3. Processing of TPU casting film: The above-mentioned fully dried materials are made into casting film through casting equipment.

[0068] Heating and mixing are carried out in three sections of the screw:

[0069] The temperature of the first feeding section is set at: 185°C for 5 minutes;

[0070] The temperature of the second compression section is set at: 195°C for 8 minutes;

[0071] The temperature setting of the third discharge section is: 200°C for 3 minutes;

[0072] Die head temperature setting: 195°C; ...

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Abstract

The invention belongs to the field of manufacturing of thin films, and discloses a base film of a TPU (thermoplastic polyurethane) high permeable paint protective film. The base film is prepared fromthe following raw materials in parts by weight and treated by a calendering machine: 80 to 90 parts of TPU with hardness of 75 to 90A, 1 to 7 parts of slipping agent 1753, and 6 to 12 parts of anti-ultraviolet agent-531; when a film which is calendered out of a die head of the calendering machine is attached to a forming roll, the height is 5 to 8cm. The invention aims at providing the base film of the TPU high permeable paint protective film with perfect attaching effect and anti-yellowing property, the TPU film and the preparation method thereof.

Description

technical field [0001] The invention relates to the field of thin film manufacturing, in particular to a high-permeability TPU car body paint protection film base film, a TPU film and a preparation process thereof. Background technique [0002] The popularization of automobiles has brought great convenience to our life. The driving process is extremely vulnerable to external damage, which may cause the body paint to fall off, scratches, corrosion, etc. The protection of the car body is particularly important. The traditional body protection film is lacquered cowhide, that is, PVC protective film, PVC, also known as polyvinyl chloride, has a small degree of branching. After long-term exposure, it will cause discoloration, that is, yellowing and aging. This kind of film is attached to the car body, mainly relying on its excellent hardness to protect the car body . For TPU, TPU is thermoplastic polyurethane elastomer rubber, which has the properties of plastic and rubber, has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08L75/06C08J5/18B29C41/52B29C41/26
CPCB29C41/26B29C41/52B29L2007/00C08J5/18C08J2375/06C08J2375/08
Inventor 杨淦锋朱永祥陈旭东高洪海林世康汤立文张奇
Owner 广东旭坤新特材料科技有限公司
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