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Ultralight release force free radical photocuring release film and preparation method thereof

An ultra-light release, light-curing technology, applied in the direction of film/sheet release liner, adhesive, etc., can solve the problem of not meeting the requirements, achieve good adhesion, stable aging release force, stable chemical and physical properties Effect

Active Publication Date: 2020-09-04
苏州鸿科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The release force of the release film commonly used in the market is greater than 3.0cN / 2.5cm, which is far below the requirements of the electronic die-cutting market for the release film market

Method used

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  • Ultralight release force free radical photocuring release film and preparation method thereof
  • Ultralight release force free radical photocuring release film and preparation method thereof
  • Ultralight release force free radical photocuring release film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 7kg acrylate-based polysiloxane TEGO RC 902, 2kg hyperbranched polysiloxane X-62-7989, 0.1kg leveling agent TEGO Glide 410, 0.3kg adhesion additive SR9051, 0.2kg antistatic agent phosphate group B Base acrylate, 0.1kg fumed silica powder CAB-O-SIL TG-829F and 0.3kg photoinitiator PhotoiniciatorA18 are mixed, stirred evenly, poured into a storage tank equipped with an agitator for coating, and put it on the coating machine After putting on the PP film, after corona treatment with a corona value of 40 dynes, the coating process is carried out. During the coating process, nitrogen gas is passed through, and the ultraviolet lamp is turned on to cure at 45 ° C. After the curing is completed, the winding is obtained. product1.

Embodiment 2

[0056] 6kg acrylate-based polysiloxane TEGO RC 902, 3kg hyperbranched polysiloxane X-62-7989, 0.1kg leveling agent TEGO Glide 410, 0.3kg adhesion additive SR9051, 0.2kg antistatic agent phosphate group B Base acrylate, 0.1kg fumed silica powder CAB-O-SIL TG-829F and 0.3kg photoinitiator PhotoiniciatorA18 are mixed, stirred evenly, poured into a storage tank equipped with an agitator for coating, and put it on the coating machine Put on the PE film, go through the corona treatment with a corona value of 38 dynes, and then carry out the coating process. During the coating process, nitrogen gas is introduced, and the ultraviolet lamp is turned on to cure at 50 ° C. After the curing is completed, the winding is obtained. product2.

Embodiment 3

[0058] 5kg acrylate-based polysiloxane TEGO RC 902, 4kg hyperbranched polysiloxane X-62-7989, 0.1kg leveling agent TEGO Glide 410, 0.3kg adhesion additive SR9051, 0.2kg antistatic agent phosphate group B Base acrylate, 0.1kg fumed silica powder CAB-O-SIL TG-829F and 0.3kg photoinitiator PhotoiniciatorA18 are mixed, stirred evenly, poured into a storage tank equipped with an agitator for coating, and put it on the coating machine Put on the PET film, go through the corona treatment with a corona value of 38 dynes, and then carry out the coating process. During the coating process, nitrogen gas is introduced, and the ultraviolet lamp is turned on to cure at 50°C. After the curing is completed, the winding is obtained. Product 3.

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Abstract

The invention belongs to the technical field of release films, and provides an ultralight release force free radical photocuring release film which comprises the following components in parts by weight: 40-140 parts of polysiloxane, 0.8-1.5 parts of a leveling agent, 0-5 parts of an adhesion additive, 1-5 parts of an antistatic agent, 1-2 parts of fumed silica powder and 3-4 parts of a photoinitiator. The invention also provides a preparation method of the ultralight release force free radical photocuring release film. The release film disclosed by the invention is stable in chemical and physical properties, stable in release force and anti-static capability, good in adhesive force and less in silicon transfer; 20-minute release force and aging release force of the release film can be stably and accurately controlled to be 1-2.5 cN / 2.5 cm, and 24-hour residual adhesive force is larger than 85%. The process is simple, one-time operation is completed, the production efficiency is high, the cost is low, and few waste materials are generated in production.

Description

technical field [0001] The invention relates to the technical field of release films, in particular to an ultra-light release force free radical light-cured release film and a preparation method thereof. Background technique [0002] Acrylate-based polysiloxane prepolymers are commonly used UV-curable prepolymers in the industry. Because of their low price, good leveling, and fast response, they have become the most widely used UV-curable systems. However, there are also problems such as low hardness after curing and poor thermal stability. [0003] At present, many release films use free radical light-cured silicone. Traditional light-cured silicone will be affected by moisture when it is cured. The storage time of high-quality light-curing silicone is relatively short, and it can only be stored for a few days to a few weeks, which will affect the continuous production of the factory. [0004] At the same time, biaxially oriented polyester film has the characteristics of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08L83/04C08K7/26C08K5/521C08J5/18C09J7/40
CPCC08J5/18C09J7/40C08J2383/06C08J2483/04C08J2383/04C08J2483/06C08K7/26C08K5/521C09J2483/00
Inventor 张诗强虞驰程
Owner 苏州鸿科新材料科技有限公司
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