Heat-insulating wall, and heat-insulating housing and method for producing the same

1. A heat-insulating wall comprising:

a wall body whose hollow portion is a heat-insulating space;

an open-cell resin body formed of a thermosetting resin, with which the heat-insulating space is filled by integral foaming; and

powder dispersed in the open-cell resin body,

the open-cell resin body comprising:

a plurality of cells;

a first through-hole formed so as to extend through the thermosetting resin located between neighboring cells; and

a second through-hole formed at an interface between the thermosetting resin and the powder,

wherein the plurality of cells communicate with one another through the first through-hole and the second through-hole,

the dispersed powder is incompatible with the thermosetting resin, and

the open-cell resin body comprises one of an open-cell urethane foam and an open-cell phenol foam.

2. The heat-insulating wall according to claim 1 , wherein the size of the powder is smaller than the size of the cell.

3. The heat-insulating wall according to claim 1 , wherein the pressure in the wall body is lower than atmospheric pressure.

4. The heat-insulating wall according to claim 1 , further comprising a gas adsorption device disposed in the wall body.

5. The heat-insulating wall according to claim 4 , wherein the gas adsorption device comprises an adsorbent that adsorbs a carbon dioxide gas, and

the adsorbent includes ZSM-5 zeolite ion-exchanged with at least one of barium and strontium.

6. A heat-insulating housing comprising one or more of the heat-insulating walls according to claim 1 .