Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 02, 2019 - November 04, 2019
Foamed resin materials are widely used as a protective cushioning material in sports and daily life. They have been developed according to various purpose. The compressive properties of foamed resin materials depend on base material, cell structure and density. This study proposes a molding method of epoxy foams by using the extraction method. The extraction method makes it easy to produce low density epoxy foams by using sodium chloride as nucleating agent and water as solvent. In addition, this study revealed effect of the density of the molded epoxy foam by changing the mass ratio of main agent, curing agent, and nucleating agent. The density of the epoxy foam can be decreased from 1.1 g/cm3 to 0.15 g/cm3. Compression tests were performed to evaluate density effects on compressive property of foams. The experimental results show that compressive stress decreases as reducing density of epoxy foam. In addition, it revealed that epoxy foams by extraction method have excellent flexibility.
