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Release agent, non-silicon release film containing release agent and manufacturing method of non-silicon release film

A technology of release agent and release film, applied in the direction of coating, etc., can solve the problems of difficult uniform coating of coating liquid, uneven thickness of release surface, uneven release force, etc., and achieve low manufacturing cost and excellent appearance , the effect of low release force

Pending Publication Date: 2019-07-19
ZHEJIANG JIEMEI ELECTRONICS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems of poor solubility in solvents and easy crystallization, resulting in uneven thickness of the release surface after coating, resulting in uneven release force and mottled appearance.
In addition, the "non-wetability" of the release surface of the non-silicon release film, that is, when the general non-silicon release film is used as the coating substrate, it is difficult to coat the coating liquid evenly on the surface, thereby further reducing its applicability

Method used

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  • Release agent, non-silicon release film containing release agent and manufacturing method of non-silicon release film
  • Release agent, non-silicon release film containing release agent and manufacturing method of non-silicon release film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The proportioning scheme of the release agent: R is -OCONHCnHm, n=18, m=37, x=20;

[0032] Polyvinyl ester-based compound weight ratio: 5%

[0033] Weight ratio of coupling agent: 0.2%

[0034] Toluene weight ratio: 15%

[0035] Xylene weight ratio: 10%

[0036] Isopropanol by weight: 12%

[0037] Heptane weight ratio: 57.8%

[0038] The release agent is coated on the PET base film with a thickness of 30um by gravure coating; the coating moisture is 6g / m 2 ; After coating, the baking temperature is 60°C-130°C, and the baking time is 30 seconds.

[0039] Tested with a spectrometer, the dry film thickness of the release agent coating is 200nm, the release force is 10-30g / inch, and the residual adhesion rate is 92%. The coating layer has good transparency in appearance, no "mottle" and iridescent color difference; after the obtained release film is immersed in toluene solvent and cleaned with ultrasonic waves, the film is taken out and dried naturally, and the origin...

Embodiment 2

[0041] The proportioning scheme of the release agent: R is -CnHm, n=10, m=21, x=20;

[0042] Weight ratio of polyvinyl ester-based compound: 0.3%

[0043] Weight ratio of coupling agent: 0.1%

[0044] Toluene weight ratio: 15%

[0045] Xylene weight ratio: 15%

[0046] Isopropanol weight ratio: 20%

[0047] Heptane weight ratio: 49.6%

[0048] Coating wet weight: 2g / m 2 ,

[0049] PET base film thickness: 30um;

[0050] The baking temperature is 60°C-130°C, and the baking time is 10S;

[0051] The dry film thickness of the release agent coating is 50nm;

[0052] The release force of the prepared release film is 400-500 g / inch, and the residual adhesion rate is 95%;

[0053] After the prepared release film was immersed in toluene solvent and cleaned with ultrasonic waves, the release force of the original release agent-coated surface was measured to be 750-800g / inch, and the release force of the base film without coating release agent treatment was 700-800 g / inch.

Embodiment 3

[0055] The proportioning scheme of the release agent: R is -OCOCnHm, n=13, m=27, x=20;

[0056]Polyvinyl ester-based compound weight ratio: 10%

[0057] Weight ratio of coupling agent: 0.5%

[0058] Toluene weight ratio: 15%

[0059] Xylene weight ratio: 15%

[0060] Isopropanol weight ratio: 15%

[0061] Heptane weight ratio: 44.5%

[0062] Coating wet weight: 5g / m 2 ,

[0063] PET base film thickness: 30um;

[0064] The baking temperature is 60°C-130°C, and the baking time is 70 s.

[0065] The dry film thickness of the release agent coating is 500nm;

[0066] The release force of the prepared release film is 30-70 g / inch, and the residual adhesion rate is 90%;

[0067] After the prepared release film was immersed in toluene solvent and cleaned with ultrasonic waves, the release force of the original release agent coating treatment surface was measured to be 720-760g / inch, and the release force of the base film without coating release agent treatment was 700-800 g...

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Abstract

The invention belongs to the technical field of release films, and relates to a release agent, a non-silicon release film containing the release agent and a manufacturing method of the non-silicon release film. The main component of the release agent is a compound containing a polyethylene ester group, the molecular formula of the release agent is shown in the specification, X is a positive integer greater than 0, R is any one or more structural formulae selected from -CnHm,-OCOCnHm and -OCONHCnHm, m is 3-50, n is 1-30, and m and n are integers. The release agent provided by the invention is uniform in coating thickness, can be easily dissolved in aromatic hydrocarbon, alkane solvents or mixed solvents such as toluene, xylene and heptane at 50 DEG C, can realize recycling of a base film, and avoids or reduces environmental pollution caused by industrial plastic waste.

Description

technical field [0001] The invention belongs to the technical field of release films, and relates to a release agent, a non-silicon release film containing the release agent and a manufacturing method thereof, which can separate the release agent and recycle the release film. Background technique [0002] At present, the release film on the market is mainly divided into silicone oil release film, fluorine release film and other non-silicon release film according to the type of release agent, all of which are made by coating various release agents on the base film. [0003] The existing silicone oil release film and fluorine release film have a wide range of release force, which can be adjusted according to the actual required release force, and the fluorine release film can also be applied to silicone adhesive products. [0004] However, the current silicone oil release film and fluorine release film also have some defects. For example, the release agent coating of the relea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/02C09D129/10C09D5/20C08J7/04C08L67/02
CPCC09D131/02C09D129/10C09D5/20C08J2367/02C08J2431/02C08J2429/10C08J7/0427
Inventor 梁仁调肖飞
Owner ZHEJIANG JIEMEI ELECTRONICS & TECH
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