EMI Shielding
A lightweight, flexible solution for imparting tunable EMI shielding to composites. Easy to handle and seamless to integrate, our nonwovens provide consistent conductivity and shielding with minimal weight addition.
Product Data
Tunable EMI Shielding
Meet your performance requirements
Our conductive nonwovens have been proven to provide a high level of shielding to electromagnetic interference from 100MHz up to and beyond 40GHz. Integrated at the surface of the composite these materials are easy to handle, conformable and resistant to flex fatigue, they form part of the composite structure without additional steps so unlike many other EMI options, do not need to be applied after manufacturing, saving time and cost. The level of EMI shielding can be tuned to meet application requirements by selecting the fibre type, metal coating and areal weight used.
Fibre Type
Copper and Nickel Coated Carbon, Nickel Coated Carbon, Copper Coated Carbon, Carbon
Areal Weights
4 - 75 g/m²
Shielding Effectiveness
Up to 78 dB
Results
Shielding Effectiveness of Conductive Nonwovens
Testing of copper and nickel coated carbon, nickel coated carbon, copper coated carbon and carbon nonwovens was completed to ASTM D4935 Standard.
Lightweight
- Minimum weight addition
- From 4 g/m²
- Excellent shielding effectiveness relative to weight
Flexible
- Flex fatigue resistance
- Conformable to complex shapes
Tuneable
- Shielding effectiveness can be tailored to meet application requirements
- In-house coating process
Processing
- Compatible with all common composite resins and manufacturing processes
- Integrated into composite without any additional steps
Quality
- Uniform fibre distribution for consistent performance
- AS9001 quality as standard
Typical Applications
Portable electronics
Providing a barrier to EMI in portable electronics to ensure effective operation, our materials can be incorporated as conductive tapes and also deliver the electrical conductivity necessary for connectors.
Battery Boxes
Metal coated nonwovens are incorporated into electronics enclosures to shield against electromagnetic interference (EMI) and facilitate the move from metal to composite enclosures.
Battery Boxes
Our conductive nonwovens provide a tunable, easy to integrate solution to the issue of EMI shielding in battery boxes which could interfere with eVTOL operation, compromising security and control.
Scanners
Our conductive nonwovens are used to reduce EMI in medical equipment such as scanners, where interference could compromise operation.
Avionics
Our metal coated nonwovens are used to shield flight avionics from electromagnetic interference which could compromise aircraft operation and safety.
Related Information
Metal Coated Fibres
Find out more about our in-house metal coating capability offers the potential to coat individual fibres and particulates with a host of single and multi-layer metals and alloys.
Markets
We offer an extensive range of technical nonwovens, already qualified in aero composites and AS9100 certified, that can improve the appearance, function and ease of fabrication of AAM composites and solve a range of technical challenges faced in eVTOL aircraft and drone design. All our materials are designed specifically for use in composites, ensuring compatibility with all common resins and manufacturing techniques as well as ease of integration & use.
James Cropper Advanced Materials customers are among the largest aerospace manufacturers in the world, including many Fortune 100 and 500 companies. Our portfolio of products are in use on most commercial aircraft, delivering surface finish solutions, improved processing, light weighting efficiency solutions, and more.
A multitude of solutions for automotive composites, ranging from Class A surface finish to friction material substrates and composite EV battery enclosures.
James Cropper has supplied materials into the Defence sector for over 25 years. Our success lies in our ability to develop materials which meet specifications that other providers can't fulfil. This means that we work closely with our customers to design a product to suit specific application requirements.
Combining properties to improve composite fabrication with functionality such as EMI shielding and conductivity, our nonwovens provide multi-functional solutions for electronic applications.
Our advanced materials are found in a number of medical applications, from wearables and adhesives to scanning machinery.
Case Study
James Cropper Delivers Innovative Electrical Shielding for ITER Nuclear Fusion Reactor
Learn about how James Cropper nonwovens are delivering EMI shielding in nuclear fusion.