| The use of the Internet and mobile phones has accelerated the need for accurate and fast transmission of large volumes of data, voice and pictures. This has led to a requirement for enhanced electrical properties of the solid or cellular dielectric insulation materials used in communication cables. To meet the growing need for enhanced electrical properties in telephone, TV and data cables, Borealis A/S, Denmark, has further developed its cellular insulation compounds. Borcell� is an extensive range of chemically and physically blown polyethylene compounds offering improved transmission properties and processability.
The new Borcell cellular compounds are optimised to generate uniform and evenly distributed cells, which enhances transmission properties. In addition, improved flow properties, melt elasticity and purity ensure the cable producer superior processing, allowing high-line speeds in combination with minimised capacitance vartiations. Typical applications for the various Borcell PE incsulation compounds include:
- Multipair telephone cables, CATV and data cables produced with chemical blowing having expansion degrees up to 50%;
- High-expansion physical foamed insulations, up to 80% expansion;
- 3G mobile phone antenna, using 50 coaxial cables, which demand minimal losses.
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