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Transparent plastic film for shielding electromagnetic waves and method for producing a plastic film of this type

一种塑料薄膜、电磁波的技术，应用在磁场/电场屏蔽、电气元件等方向，能够解决层系统透明性功能性不利影响等问题，达到高稳定性、确保透明性、高附着强度的效果

Inactive Publication Date: 2012-12-26
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] A further disadvantage of this layer system is that the silver diffuses over time into adjacent layers or even into the thin-film substrate, whereby the transparency and thus the functionality of the layer system are adversely affected

Method used

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  • Transparent plastic film for shielding electromagnetic waves and method for producing a plastic film of this type
  • Transparent plastic film for shielding electromagnetic waves and method for producing a plastic film of this type
  • Transparent plastic film for shielding electromagnetic waves and method for producing a plastic film of this type

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Embodiment Construction

[0025] exist figure 1 A transparent plastic film 11 for shielding electromagnetic waves is schematically shown in . A niobium oxide layer 13 was first deposited on a 75 μm thick film substrate 12 made of PET. The niobium oxide layer 13 consists of two layers, one of which is adjacent to the thin film substrate 12, 30 nm thick, made of Nb 2 o 5 A stoichiometric niobium oxide layer 14 was made, on which another layer of only 3 nm thick made of Nb 2 o x (X2 o x (X2 o 5 fabricated stoichiometric niobium oxide layers 19 . All layers and layers are deposited by means of the magnetron sputtering method.

[0026] The plastic film 11 is distinguished by a high adhesive strength of the individual layers and layers and also by a high transparency in the visible region. exist figure 2 The transmission of the plastic film 11 is shown graphically over the wavelength range. Depend on figure 2 It can be seen that the maximum achievable transmission of the plastic film 11 is clear...

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Abstract

The invention relates to a transparent plastic film for screening electromagnetic waves, comprising a transparent film substrate and a layer system that has at least one silver layer, as well as a method for producing a plastic film of this type, wherein the silver layer is embedded between two niobium oxide layers.

Description

technical field [0001] The invention relates to a transparent plastic film suitable for shielding electromagnetic waves and to a method by which such a transparent plastic film can be produced. Background technique [0002] Devices and installations from modern technological fields such as mobile radio, satellite television, microwave technology or radar technology are sources of electromagnetic fields. Not only other electrical devices but also ecosystems (humans, animals and plants) encounter this electromagnetic field, whereby their functionality or quality of life may be adversely affected. [0003] It is known that electrical installations can be protected against the influence of electromagnetic radiation and, in turn, the electromagnetic interference radiation emanating from the electrical installation is suppressed. [0004] The prior art therefore discloses various devices for shielding electromagnetic waves, by means of which either the emission of electromagnetic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00
CPCH05K9/0094
Inventor M·法兰T·沃格特N·希勒W·肖恩伯格S·冈瑟J·法尔泰克
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV