LNG VACUUM HEAT-INSULATING MATERIAL AND HEAT-INSULATING CONTAINER DWELLING WALL TRANSPORT MACHINE HYDROGEN TRANSPORT TANKER AND LNG TRANSPORT TANKER EQUIPPED WITH VACUUM HEAT-INSULATING MATERIAL

摘要

As the vacuum heat insulating material 10, an outer cover material 11 and a core material 12 enclosed in a reduced pressure sealed state are provided inside the outer cover material 11. The outer shell material 11 has gas barrier properties, and (1) a coefficient of linear expansion at a static load of 0.05 N in a temperature range of -130 ° C to 80 ° C is 80 × 10 ^-5 / ° C or less, (2) The average value of the linear expansion coefficient at a static load of 0.4 N in the temperature range of -140 ° C to -130 ° C is 65 × 10 ^-5 / ° C or higher, and (3) within the temperature range of -140 ° C to -110 ° C. The average value of the linear expansion coefficient at a static load of 0.4 N is 20 × 10 ^-5 / ° C or higher, and (4) the average value of the linear expansion coefficient at a static load of 0.4 N in the temperature range of + 50 ° C to + 65 ° C is 13 At least one of the conditions of x10 ^-5 / ° C or higher is satisfied.