可溶性ポリイミド溶着剤を用いた高温真空断熱パネルの断熱特性

抄録

To comply with energy saving, vacuum insulation panels (VIP) have been used in low temperature application in some years now. And for more high temperature, the material composition and process of VIP were reviewed, the SUS foil was adopted as packaging material, and soluble polyimide was developed as the thermo compression bonding material for high temperature VIP at 150°C. To lower the glass-transition temperature (T_g) under 200°C for the thermo compression bonding (Max230°C), we elaborated the new soluble polyimide using aliphatic diamine copolymer, and controlled T_g to about 176°C. By making from trial VIP and evaluations, it was possible to be maintain high performance concerning coefficient of thermal conductivity : λ<8 [×10^-3W/ (m·K)] at 150°C.