Polymer laminates water vapor permeability

Regarding the water vapor permeability, the laminate with hybrid polymer showed an improvement factor of 9, whilst the improvement factor was ca. 70 for the multilayer laminate containing hybrid polymer (see Fig. 21-19). 

As can be seen from Figure 21-28, the barrier values for apphcations involving VIPs, LFDs and solar modules are aheady met. In order to achieve the required water vapor barrier properties for OLFDs, further work is stih required. In order to break through into areas where such low permeabilities are required, it is not only the barrier properties of the hybrid polymers that matter, but also harmonization and optimization of ah processes, materials and methods that are used for producing the multilayer laminates. 

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