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PET card film and preparation method thereof

A card film, white film technology, applied in the direction of film/sheet adhesive, adhesive type, polyurea/polyurethane adhesive, etc. Water resistance, poor high temperature and high humidity resistance, etc., to achieve the effect of stable adhesion, improved adhesion resistance, and good high temperature and high humidity resistance

Inactive Publication Date: 2018-02-16
常州勤邦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

[0005] Aiming at the technical problems that PET card film in the prior art has poor water resistance, high temperature and high humidity resistance, poor anti-adhesiveness in the coating storage process, difficult to fully meet the use requirements, and cannot be widely used, the present invention provides a performance Better PET card film and preparation method thereof

Method used

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  • PET card film and preparation method thereof
  • PET card film and preparation method thereof
  • PET card film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw materials are: aliphatic water-based polyurethane resin: 60 parts, BYK-192 water-based dispersant: 3 parts, deionized water: 25 parts, Degussa matting powder TS100: 5 parts, water-based polytetrafluoroethylene wax powder : 1 part, TEGO WetKL245 water-based substrate wetting agent: 0.2 parts, BYK-021 water-based defoamer: 0.3 parts, BYK-333 water-based leveling agent: 0.4 parts, DMEA 0.1 part , Water-based blocked isocyanate curing agent: 5 parts.

[0026] Add water-based polyurethane resin to the reaction kettle, then add water, dispersant, water-based defoamer, water-based wetting agent, water-based leveling agent, matting powder, water-based PTFE wax powder, blocked isocyanate curing agent, high-speed dispersion , stir evenly, adjust the pH value to 7.5-8 with DMEA, filter to remove impurity particles, and prepare water-based glue for PET card film.

[0027] Double coating on one side, first adjust the coating viscosity to 15-20sec with water-based glue (coat...

Embodiment 2

[0029] The raw materials are: aliphatic water-based polyurethane resin: 53 parts, BYK-192 water-based dispersant: 5 parts, deionized water: 24 parts, Degussa matting powder TS100: 8 parts, water-based polytetrafluoroethylene wax powder : 2 parts, German TEGO Wet280 water-based substrate wetting agent: 0.6 parts, German TEGO 902W water-based defoamer: 0.6 parts, German BYK-333 water-based leveling agent: 0.6 parts, DMEA 0.2 parts, Water-based blocked isocyanate curing agent: 6 parts.

[0030] Preparation method and coating method are the same as embodiment 1

Embodiment 3

[0032] The raw materials are: aliphatic water-based polyurethane resin: 65 parts, BYK-192 water-based dispersant: 2 parts, deionized water: 20 parts, Degussa matting powder TS100: 6 parts, water-based polytetrafluoroethylene wax powder : 1 part, German TEGO Wet280 water-based substrate wetting agent: 0.3 parts, German TEGO 902W water-based defoamer: 0.3 parts, German BYK-333 water-based leveling agent: 0.3 parts, DMEA 0.1 part, Water-based blocked isocyanate curing agent: 5 parts.

[0033] Preparation method and coating method are the same as embodiment 1

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Abstract

The invention belongs to the technical field of high polymer materials and particularly relates to a PET card film and a preparation method thereof. By selecting aliphatic waterborne polyurethane, thecohesive property and the ageing resistance of water-based glue coated to form a white PET film can be effectively improved; by selecting a flatting agent, the later printing requirements of a coating can be effectively met; by adding water-based polytetrafluoroethylene, bonding resistance of the coating in a storage layer can be improved; by adding a blocked isocyanates curing agent, the adhesive force, the stability, the water resistance and the high temperature and humidity resistance of the coating can be obviously improved, so that the PET card film capable of meeting the using requirements is prepared.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a PET card film and a preparation method thereof. Background technique [0002] PET film, also known as high temperature resistant polyester film, has excellent physical properties, chemical properties, dimensional stability, transparency, and recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, Packaging decoration, screen protection, optical mirror surface protection and other fields. [0003] The card protection film is a high-grade sheet packaging material made of polyester film as the substrate, uniformly coated with adhesive, and then specially processed. The sheet material has waterproof, anti-alteration, moisture-proof, and insect-proof. Anti-mildew, anti-corrosion and other excellent functions, and crisp and beautiful, high transparency. [0004] PET card film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/30C09J175/04C09J11/08
CPCC08L2201/08C08L2205/035C09J11/08C09J175/04C09J2301/124C09J2467/006C09J2475/00C08L23/06C08L27/18
Inventor 孔云飞刘勤学
Owner 常州勤邦新材料科技有限公司
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