| 摘要 |
An insulating glass unit may include a spacer positioned between opposing panes of material to define a between-pane space. The spacer may seal the between-pane space from gas exchange with a surrounding environment and hold the opposing panes in a spaced-apart relationship. In some examples, the spacer includes a primary sealant layer, a secondary sealant layer, and a gas diffusion barrier layer positioned between the primary sealant layer and the secondary sealant layer. The gas diffusion barrier layer may define a first side and a second side opposite the first side. Depending on the application, the first side of the gas diffusion barrier layer may be positioned in contact with the primary sealant layer while the second side of the gas diffusion barrier layer is positioned in contact with the secondary sealant layer. |
