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Shielding window film and preparation method thereof

A technology of shielding windows and electromagnetic shielding coatings, which is applied in chemical instruments and methods, sustainable manufacturing/processing, chemical industry, etc., can solve problems such as lack of heat insulation performance, achieve good shielding performance, increase product characteristics, and good insulation The effect of thermal insulation performance

Active Publication Date: 2014-06-25
TIANNUO PHOTOELECTRIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese invention patent CN201210029979.6 (a transparent electromagnetic shielding film) disclosed a transparent electromagnetic shielding film on July 25, 2012, which is characterized in that conductive fillers and base materials such as silicon dioxide are added when preparing the film masterbatch , blown into a PE film with electromagnetic shielding performance, the transparent electromagnetic shielding film has a certain shielding performance and light transmission performance, but does not have heat insulation performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: Preparation Example 1 of Shielding Window Film

[0046] The PET-based energy-saving shielding window film with a light transmittance of 90% and 125 μm has a scratch-resistant and wear-resistant layer thickness of 6 μm, an electromagnetic shielding coating layer thickness of 20 μm, a thermal insulation adhesive layer thickness of 10 μm, and a release film thickness of 42 μm. The specific coating process is as follows:

[0047] Scratch-resistant and wear-resistant layer coating: After diluting the UV photocurable resin (33 parts) to 20% with isopropanol (67 parts), it is evenly coated on the transparent polyester with a light transmittance of 90% and 125 μm by gravure coating. On the surface of the film, the solvent was evaporated in an oven at 100° C. for 2 minutes, and after UV curing, it was rolled up for use.

[0048] Electromagnetic shielding coating layer coating: Add toluene (15 parts) to 40nm particle size nano-silica powder (2 parts) an...

Embodiment 2

[0050] Embodiment 2: Preparation Example 2 of Shielding Window Film

[0051]The PET-based energy-saving shielding window film with a light transmittance of 89% and 175 μm has a dry film thickness of 10 μm for the scratch-resistant and wear-resistant layer, a dry film thickness of 20 μm for the electromagnetic shielding coating layer, and a dry film thickness of 20 μm for the thermal insulation adhesive layer. 9μm, release film thickness is 40μm. The specific coating process is as follows:

[0052] Scratch-resistant and wear-resistant layer coating: After diluting the UV photocurable resin (50 parts) with isobutanol (50 parts) to 30%, it is evenly coated on the transparent polyester with a light transmittance of 89% and 175 μm by gravure coating. On the surface of the film, the solvent was volatilized in an 80°C hot air oven for 2 minutes, and after UV curing, it was rolled up for use.

[0053] Electromagnetic shielding coating layer coating: Add xylene (10 parts)...

Embodiment 3

[0055] Embodiment 3: Preparation Example 3 of Shielding Window Film

[0056] The PET-based energy-saving shielding window film with a light transmittance of 88% and 188 μm has a dry film thickness of 20 μm for the scratch-resistant and wear-resistant layer, a dry film thickness of 60 μm for the electromagnetic shielding coating layer, and a dry film thickness of 60 μm for the thermal insulation adhesive layer. 12μm, release film thickness is 25μm. The specific coating process is as follows:

[0057] Scratch-resistant and anti-wear layer coating: After diluting the UV photocurable resin (50 parts) with toluene (50 parts) to 30%, it is evenly coated on the surface of the transparent polyester film with a light transmittance of 88% and 188 μm by gravure coating , the solvent was evaporated in a hot air oven at 120°C for 2 minutes, and after UV curing, it was rolled up for use.

[0058] Electromagnetic shielding coating layer coating: Add ethyl acetate ( 20 parts) a...

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Abstract

The invention discloses a shielding window film and a preparation method thereof. The shielding window film comprises five structure layers, namely an anti-scratch and wear-resistant layer, a transparent polyester film layer, an electromagnetic shielding coating layer, a heat insulation bonding layer and a release film layer. According to the shielding window film, the film structure of a conventional window film product is optimized, the product features are added, and the large-area continuous batch production is facilitated. The shielding window film has the characteristics of good heat insulation and cold resistance performance, high transparency and shielding effectiveness, no adhesive residues during re-stripping, and the like, and is mainly applied in building glass, special meeting rooms and the like, and has the effects of energy conservation, beautification and electromagnetic shielding.

Description

technical field [0001] The invention relates to a shielding window film and a preparation method thereof. The shielding window film not only has good heat and cold insulation performance and transparency, but also has good shielding performance and no adhesive residue after peeling off. It can be widely used in architectural glass, special meeting rooms, etc. Background technique [0002] The U.S. Department of Energy estimates that one-third of the cooling load of ordinary buildings comes from solar energy penetrating through windows, and nearly 75% of glass windows have low thermal insulation performance. In order to solve the above problems, various thermal insulation films came into being. become. In the prior art, heat insulation of window glass is usually solved by heat insulation film or heat insulation sticker, and heat insulation film has excellent comprehensive performance, so it has been widely used. However, many people have not realized that remote threats thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B33/00C09D183/04C09D133/00C09D7/12C09J133/00C09J11/04C09J11/06
CPCY02P20/10
Inventor 朱焰焰马苹苹郑杰徐刚郭丽丽张茂功
Owner TIANNUO PHOTOELECTRIC MATERIAL
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