| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulating material and a heat insulating structure capable of securing strength even when binder content is small, displaying heat insulating performance of high performance as a vacuum heat insulating material, preventing deterioration of performance even when it is perforated and excellent in practical workability. SOLUTION: It is possible to provide a heat insulating material 1 of high performance as a binder 3 which is a reinforcing material can be reduced and as a result, an excellent heat insulating characteristic of a urethane aero gel granular body 2 becomes dominant as rigidity is impoved by using a urethane aero gel having high bridged density urethane bonding with the urethane aero gel granular body 2 mixed and solidified with organic polyisosianate as the binder 3.
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