Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite film with the function of shielding electromagnetic field

A composite paste and electromagnetic field technology, which is applied to home appliances, other home appliances, and synthetic resin layered products, can solve problems such as human health hazards, electromagnetic interference, and abnormal work, so as to improve utilization, stability, and improvement. The effect of product service life

Active Publication Date: 2017-12-12
斯迪克新型材料(江苏)有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electromagnetic waves released by electronic products will bring electromagnetic interference to other electronic devices around them, making them work abnormally; at the same time, they will also cause harm to human health

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite film with the function of shielding electromagnetic field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0034] Embodiments 1 to 4: A composite film with the function of shielding electromagnetic fields, including a PET insulating layer 1, a metal layer 2, a wave-absorbing layer 3 and a release material layer 4, and the PET insulating layer 1 and the metal layer 2 are provided with The first adhesive layer 5, the second adhesive layer 6 is arranged between the metal layer 2 and the wave-absorbing layer 3, and the surface of the metal layer 2 in contact with the wave-absorbing layer 3 is provided with several parallel-arranged prism protrusions The starting part 8; the third adhesive layer 7, the polypropylene film layer 10 and the fourth adhesive layer 9 are sequentially arranged between the wave-absorbing layer 3 and the release material layer 4; the fourth adhesive layer 9 and the fourth adhesive layer The surface in contact with the release material layer 4 has several bumps 11;

[0035] The components and contents of the absorbing layer 3 are as shown in Table 1:

[0036] Ta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite pasting film with the electromagnetic field shielding function. The composite film comprises a PET insulating layer, a metal layer, a wave absorbing layer and a release material layer. A first adhesive layer is disposed between the PET insulating layer and the metal layer, a second adhesive layer is arranged between the metal layer and the wave absorbing layer, and a plurality of parallel prism protruding parts are arranged on the surface, making contact with the wave absorbing layer, of the metal layer. The wave absorbing layer is formed by mixing the components comprising, by weight, 100 parts of wave absorbing powder, 20-35 parts of butyl acrylate, 10-20 parts of acrylic acid, 20-35 parts of 2-ethylhexyl acrylate, 10-30 parts of methyl methacrylate, 1-3 parts of vinyl acetate, 0.1-1 part of methacrylic acid-2-hydroxyethyl, 0.5-2 parts of sodium polyacrylate and 0.4-1 part of methyl ethyl ketone peroxide. The composite pasting film with the electromagnetic field shielding function increases the utilization rate of a reflection electromagnetic field of the metal layer, remarkably improves wave absorbing performance of protective adhesive tape, avoids over-concentration of heat and facilitates heat diffusion.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, in particular to a composite film with the function of shielding electromagnetic fields. Background technique [0002] The development of the electronics and communication industry is advancing by leaps and bounds, and more and more electronic and electrical products have entered the lives of ordinary people. While these products improve people's quality of life, they also bring about a prominent problem, that is, the problem of electromagnetic radiation. The electromagnetic waves released by electronic products will bring electromagnetic interference to other electronic devices around them, making them work abnormally; at the same time, they will also cause harm to human health. [0003] At present, miniaturization and high integration are the mainstream trends in the development of electronic products, and the internal space of these products is relatively small. Among the wave-a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/08B32B15/09B32B27/06B32B27/08B32B27/28B32B27/32B32B27/36B32B27/18B32B7/12B32B7/06B32B33/00B32B3/30C08K13/02C08K3/22C08K3/16C08K3/08C08K3/04C08F220/18C08F220/06C08F220/14C08F218/08C08F220/28
CPCB32B3/30B32B7/06B32B7/12B32B15/08B32B15/09B32B27/06B32B27/08B32B27/18B32B27/28B32B27/32B32B27/36B32B33/00B32B2264/0278B32B2264/102B32B2264/105B32B2264/108B32B2264/12B32B2307/212B32B2307/302B32B2571/00C08F220/18C08F220/1804C08F220/1808C08F220/281C08K3/04C08K3/08C08K3/16C08K3/22C08K13/02C08K2003/0856C08K2003/2293C08F220/06C08F220/14C08F218/08C08F220/28
Inventor 金闯梁豪
Owner 斯迪克新型材料(江苏)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com