| 摘要 |
A vacuum insulation panel that includes a paper core made of at least one panel consisting of first and second facing sheets, made of paper, that sandwich a paper honeycomb structure. The honeycomb structure preferably includes a plurality of cells that extend from the first facing sheet to the second facing sheet. The panel also includes an outer shell that surrounds the core, wherein the outer shell is made of a material of low gas permeability and is sealed to form a substantially airtight container around the core. In preferred embodiments, an interior of said outer shell has been evacuated to a pressure of between approximately 1-10 Torr, resulting in an insulating panel that has an R-value of approximately 3. |
