Composite Film Technology, the Next Breakthrough in Flexible Electrical Insulating Materials

Abstract

Flexible materials used as electrical insulation are of three main types: papers, film, and laminate structures. Aramid fiber paper has been the industry standard for the past 50 years and has a thermal class of 200 but suffers from moisture absorption and orientation limitations. Hence, insulation technologies developed laminates with high thermal capability aramid papers on low thermal class PET films. While these products have been on the market for many years, there has been a need for technologically improved products to overcome the deficiencies of laminates, papers, and film. The technical paper introduces a newly developed product, a composite film substrate with better electrical and mechanical properties to overcome the present limitations in laminates. The paper will cover the product description, its comparative advantages over present laminates, and the benefits for the electrical industry in total.