| 摘要 |
PURPOSE:To obtain the subject composition of light weight excellent in heat control and having an applicability, e.g. to a space machine as a typical example for application thereof by blending a phenolic resin with micro balloons composed of silica and a specified amount of an epoxy-amine-based resin. CONSTITUTION:(A) A phenolic resin (e.g. phenol-formaldehyde resin, etc., preferably having 120mum maximum diameter, 5mum minimum diameter, 35-48mum average particle diameter, 0.10-0.15g/cm<3> bulk density and 0.21-0.35g/cm<3> true density) and micro balloons composed of silica are blended with (B) an epoxy-amine- based resin composed of an epoxy resin consisting of a straight chain polymer such as a polyalkylene glycol having one or more terminal glycidyl groups and an amine-based resin such as an aliphatic amine, an alicyclic amine or an aromatic amine preferably in a weight ratio of (4:6)-(6:4) to obtain the objective composition. |
