Natural Materials adopted for Electrical and Electronic Materials

—The Case of Dielectric and Electrical Insulating Materials—

Abstract

Humankind is required to reduce environmental impact caused by its activity. Materials and products have been evaluated by criteria of performance in use and price. Now environmental impact is added to the criteria for evaluation. One of the future directions of science and technology is to minimize the environmental load of materials and products keeping their state-of-the-art performance. Adoption of natural materials is one of promising ways to realize that. This review will introduce some examples in the field of dielectric and electrical insulating materials.