| 摘要 |
Aluminum silicate or mixtures of aluminum silicate and silica are utilized as insulating materials with low thermal conductivities. The aluminum silicate or the mixtures are dried, compressed, placed in a gas-tight envelope, evacuated and sealed. The resultant rigid, board-like panel can be used directly as thermal insulation or it can be used in conjunction with other insulating materials, for example, polyurethane foam.
|
