Pyrolysis adhesive film and production coating process thereof

A coating process and film technology, applied in the direction of adhesives, pressure-sensitive films/sheets, film/sheet-like adhesives, etc., can solve the problems of abnormal glue residue, affecting products, glue residue, etc. , good fixing effect, good adhesion effect

Inactive Publication Date: 2020-04-28
江苏晶华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

[0002] In the production process of electronic products, the protective film is indispensable. The main function of the protective film is to protect the surface of the product. However, in the face of changing conditions and applications in the process, the requirements for the use of the protective film are becoming more and more stringent. The most common requirement is high temperature protection without leaving any glue residue. In the manufacturing process of electronic products, there are many stages that need to be baked or irradiated at high temperature to make the chemical objects remaining on the surface after surface treatment or erosion molding. Volatilization, and the protective film involved in it as surface protection must also go through the same process and leave no residual glue on the pasted product when it is finally uncovered, but the traditional protective film, the colloid is mainly pressure-sensitive adhesive , is sensitive to high temperature. When the pressure-sensitive adhesive encounters high temperature, the molecular chain begins to loosen and the adhesive layer begins to soften and decompose. Therefore, it is easy to cause abnormal residual adhesive when it is peeled off. This is why most pressure-sensitive adhesive protective films will clearly require customers to Use at room temperature to minimize the risk. The structure of the traditional pressure-sens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 101

[0044] The pyrolytic adhesive film of the present embodiment comprises a single-sided release-type release layer, a PET substrate layer and a pressure-sensitive adhesive layer formed on the surface of the substrate layer; the PET substrate layer is treated on its surface after corona treatment during pretreatment. The tension is 42dyne / cm, and the transmittance reaches 90% at the same time; the release force of the release layer is 10g / mm, the residual adhesive force is ≥85%, and the thickness is 50μm; the main composition of the pressure-sensitive adhesive layer includes, wt%, acrylic acid : 93%, medium temperature calcium carbonate type foaming agent: 4%, isocyanate type curing agent: balance, the thickness of dry glue after coating is 17μm.

[0045] The production coating process is as follows:

[0046] Select the material, the selected PET requires the surface tension to reach 42dyne / cm after surface treatment;

[0047] The glue is configured according to the ratio, and t...

Embodiment 102

[0057]The pyrolytic adhesive film of the present embodiment comprises a single-sided release-type release layer, a PET substrate layer and a pressure-sensitive adhesive layer formed on the surface of the substrate layer; the PET substrate layer is treated on its surface after corona treatment during pretreatment. The tension is 46dyne / cm, and the transmittance reaches 97% at the same time; the release force of the release layer is 13g / mm, the residual adhesive force is ≥83%, and the thickness is 45μm; the main composition of the pressure-sensitive adhesive layer includes, wt%, acrylic acid : 94%, medium temperature calcium carbonate type foaming agent: 2%, isocyanate type curing agent: balance, the thickness of dry glue after coating is 15μm.

[0058] The production coating process is as follows:

[0059] Select the material, the selected PET requires the surface tension to reach 42dyne / cm after surface treatment;

[0060] The glue is configured according to the ratio, and th...

Embodiment 103

[0070] The pyrolytic adhesive film of the present embodiment comprises a single-sided release-type release layer, a PET substrate layer and a pressure-sensitive adhesive layer formed on the surface of the substrate layer; the PET substrate layer is treated on its surface after corona treatment during pretreatment. The tension is 52dyne / cm, and the transmittance reaches 94% at the same time; the release force of the release layer is 16g / mm, the residual adhesive force is ≥86%, and the thickness is 47μm; the main composition of the pressure-sensitive adhesive layer includes, wt%, acrylic acid : 91%, medium temperature calcium carbonate type foaming agent: 3%, isocyanate type curing agent: balance, the thickness of dry glue after coating is 16μm.

[0071] The production coating process is as follows:

[0072] Select the material, the selected PET requires the surface tension to reach 42dyne / cm after surface treatment;

[0073] The glue is configured according to the ratio, and t...

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Abstract

The invention discloses a pyrolytic adhesive film and a production coating process thereof, wherein the pyrolytic adhesive film at least comprises a release layer, a base material layer and a pressure-sensitive adhesive layer, wherein the release layer is a single-sided release film material and is used for winding the base material layer coated with the pressure-sensitive adhesive layer; and thepressure-sensitive adhesive layer is formed on the surface of the base material layer. The pyrolytic mucous membrane product is high in initial stripping force, a good fixing effect can be achieved onthe product, no residual adhesive is generated under high-temperature debonding, and stripping is easy. And meanwhile, the requirement on the debonding temperature does not influence the product.

Description

technical field [0001] The invention relates to a pyrolyzed mucous film and its production and coating process, in particular to a pyrolyzed mucous film without white mist and residue under high temperature and its production and coating process. Background technique [0002] In the production process of electronic products, the protective film is indispensable. The main function of the protective film is to protect the surface of the product. However, in the face of changing conditions and applications in the process, the requirements for the use of the protective film are becoming more and more stringent. The most common requirement is high temperature protection without leaving any glue residue. In the manufacturing process of electronic products, there are many stages that need to be baked or irradiated at high temperature to make the chemical objects remaining on the surface after surface treatment or erosion molding. Volatilization, and the protective film involved in ...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/38C09J4/02C09J11/06
CPCC09J4/00C09J7/255C09J7/38C09J11/06C09J2301/122C09J2301/312C09J2467/006
Inventor 杨佳伟
Owner 江苏晶华新材料科技有限公司
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