INSULATING POLYMER MATERIAL COMPOSITION

摘要

Disclosed is an insulating polymer material composition of the environment-conscious type which is obtained by using a renewable resource and a waste material as starting materials. A plant oil-origin epoxy resin is mixed with a plant-origin polyphenol and the obtained mixture is subjected to a heat treatment to give a liquid epoxy resin composition which is a compatibilized blend of the plant oil-origin epoxy resin and the plant-origin polyphenol. To this liquid epoxy resin composition, coal ash and a silane coupling agent are added followed by mixing. Further, an additive such as a curing accelerator is added thereto and the mixture is subjected to a heat treatment to give an insulating polymer material composition. As the coal ash, it is preferred to use fly ash. It is also preferred to use a silane coupling agent having epoxy group.