Description

Even though foam techniques are well established in cable manufacturing, there is still a wide range of research into areas such as improvement in electrical properties, reduced smoke generation/improved flammability properties, and reduced weight. The paper gives a short overview of foam processing for cable insulation and reports some examples of recent, actual developments that include physical foamed high-void PE; a new chemical blowing agent for FEP foam; and aspects of using HFFR polymers as foam material.