Lehmann&Voss&Co has developed LUVOCOM ES, a new range of thermoplastic shielding compounds which can shield electromagnetic waves at smaller wall thicknesses.

The new compounds are engineered for the housings of electric and electronic devices such as computers, radios, phones, and laboratory equipment. 

As devices become smaller and smaller, and electromagnetic pollution becomes more serious with the increased use of electrical and electronic devices, the need for improved shielding materials is escalating. Because polymers are non-conductors, they are permeable to electromagnetic waves of up to approximately 100 GHz. Shielding is necessary to prevent electromagnetic environmental pollution and hence an influence on sensitive electronic devices, the company says.

Smaller parts

However, shielding materials available thus far have been less than effective, causing customers to design with thicker walls or use additional metal coatings or steel sheets to protect against the electromagnetic waves, it claims. LUVOCOM ES can help eliminate the need for secondary operations/installation of metal sheets or films or coatings, and parts can be smaller (no inlays/space for inlays) and more environmentally friendly due to less material mix and weight savings.

LUVOCOM ES compounds are ready to use and their rheology has been improved for easy processing and thin walls.  

Due to its inherently high electrical conductivity, LUVOCOM ES allows small contact areas for necessary electric grounding. Overall shrinkage, flow and mechanical properties for some LUVOCOM ES compounds are close to standard PC/ABS with 20% glass fibers and flame retardant materials are also available.

This story is reprinted from material from Lehmann&Voss&Co, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.