Esterified fibrous insulating materials

In Part I a general survey is given of the application of fibrous materials to electrical insulation and of the improvement from an electrical point of view produced in cellulosic materials by acetylation. In Part II the practical details of the manufacture, application, and testing of those acetylated cellulosic fibrous materials which are now in commercial use are treated more fully, and a short description of modern ideas on the fine structure of cellulosic material is added. In Part III the flameproofing of textiles is dealt with and its effect on insulation resistance and corrosion, especially with reference to materials of high insulation resistance like Cotopa; particulars are also given of several recently developed esterified fibrous inculating materials of electrical interest.