Ultra-light non-silicon PET release film and production process thereof

A production process and release film technology, applied in coatings, fireproof coatings, conductive coatings, etc., can solve the problems of precipitation and no silicon element, etc., and achieve the effect of simple ingredients, no coating spots, and no scratches on the surface

Pending Publication Date: 2022-02-01
江阴华美光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The ultra-light non-silicon release film is mainly used in high-end electronic products, and the PET release film is required to have a relatively light release type, and no silicon element can be precipitated, so as to prevent downstream products from being poorly processed and short-circuited due to silicon pollution; The existing PET release film does not meet the above requirements

Method used

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  • Ultra-light non-silicon PET release film and production process thereof
  • Ultra-light non-silicon PET release film and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The invention provides an ultra-light non-silicon PET release film, comprising a PET release film base film, a coating, a treatment liquid a and a treatment liquid b, and before the PET release film base film is subjected to corona treatment, the treatment liquid is first used a After coating the PET release film base film evenly and drying it, soaking it with the treatment solution b, completing the pore-forming pretreatment of the PET release film base film, and then performing steam scraping on the PET release film base film Form uniform and dense micropores on the surface, and then perform corona treatment on the PET release film base film to enhance the adhesion of the PET release film base film surface, and then perform surface dust removal treatment on the PET release film base film to effectively reduce the original Floating dust on the surface of the film, and then apply the paint on the surface of the PET release film base film to form an ultra-light non-silico...

Embodiment 2

[0038] The difference from Example 1 is that the coating includes: 0.61% of nano-alumina, 0.32% of graphene, 1.77% of water-based polyurethane resin, 31% of polyacrylic resin with a solid content of 18%, and 22% of solid content by weight percentage. 9.0% polyacrylic resin, 0.61% polyisocyanate curing agent, 56.69% toluene; the calculation of the weight percentage of the treatment liquid a includes: 10% polyethylene glycol, 10% PET resin; the treatment liquid b is Ethanol and glycerol are prepared by mixing uniformly according to the volume ratio of 4:1.

Embodiment 3

[0040] All different from Examples 1-2, the coating includes: 0.58% of nano-alumina, 0.29% of graphene, 1.74% of water-based polyurethane resin, 29% of polyacrylic resin with a solid content of 18%, solid Content 22% polyacrylic resin 8.7%, polyisocyanate curing agent 0.58%, toluene 59.11%; The weight percent calculation of described treatment liquid a comprises: the PET resin of 8% polyethylene glycol, 92%; Described treatment Liquid b is prepared by mixing ethanol and glycerol in a volume ratio of 4:1.

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Abstract

The invention discloses an ultra-light non-silicon PET release film and a production process thereof, and particularly relates to the technical field of PET release films. The ultra-light non-silicon PET release film comprises a PET release film base film and a coating. According to the ultra-light non-silicon PET release film, the light transmittance is larger than or equal to 88%, the haze is smaller than or equal to 4%, the 20 min release force is adjustable within the range of 30-300 g / in, and the residual adhesion rate is larger than 85%; the surface is flat, smooth and free of scratches, obvious rainbow lines, coating leakage and coating spots; single methylbenzene is used as the solvent so that the proportioning is simpler; graphene and nano aluminum oxide are compounded to form a graphene / nano aluminum oxide composite material, and the graphene / nano aluminum oxide composite material is doped into the coating so that the antistatic property, the heat resistance and the antibacterial property of the release film can be effectively improved; and the PET release film base film is soaked in the treatment liquid compounded by ethanol and glycerol so that the contact combination effect of the subsequent coating and the PET release film base film is better, and the adhesive force is stronger.

Description

technical field [0001] The invention relates to the technical field of PET release film, more specifically, the invention relates to an ultra-light non-silicon PET release film and a production process thereof. Background technique [0002] At present, electronic products are becoming more and more high-end, and the requirements are getting higher and higher. Some special electronic products are extremely sensitive to silicon elements. Silicon elements can easily lead to poor processing and short-circuit risks of electronic products. The protection of protective film materials, which puts forward higher requirements for protective film products, and strictly controls the silicon content range of protective film materials. However, at present, the ultra-light release protective film products produced by traditional coating manufacturers are all Ordinary silicone release film, the traditional non-silicon release film can not reach the 20min release force of <300g / in, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/044C08J7/05C08J7/00C08J7/12C09D133/00C09D7/61C09D5/24C09D5/18C09D7/20C09D167/02C09D171/02C08L67/02
CPCC08J7/04C08J7/044C08J7/05C08J7/123C09D133/00C09D7/61C09D5/24C09D5/18C09D7/20C09D167/02C08J7/00C08J2367/02C08J2433/00C08J2467/02C08J2471/02C08K2201/011C08K2003/2227C08L33/00C08K3/22C08K3/042C08L71/02
Inventor 陆雁郭科斌赵伟达
Owner 江阴华美光电科技有限公司
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