| 摘要 |
<p>The insulation comprises a film 12 having a metal face 12b bonded to the peaks 14a or troughs 14b of a cellular, corrugated, central element 14; defining channels 16 between the film 12 and the central element 14. The central element 14 has a zigzag cross-section. The cellular material is preferably polyethylene, polypropylene or polyurethane foam. The preferred insulation includes a second (aluminium) metallised 12b (polyethylene) film 12a on the other side of the central element 14. Multilayer insulation material formed from this insulation is used for thermal insulation of buildings.</p> |
