Dow Chemical Co. is introducing polyolefin technologies it claims help improve performance of silicon-based solar electricity generators.
Dow said its new Enlight encapsulant composite films can serve both as the back encapsulant for photovoltaic modules and the backsheet.
“Our solution eliminates delamination, improves electrical insulation and offers higher levels of moisture resistance,” states Dow's global business development manager of its photovoltaic business, Friedrich von Rechteren in a news release.
Most photovoltaic backsheets are made of multiple layers of laminated films that can come apart over time, according to the Midland, Mich-based firm. The new Dow films have three seamlessly integrated layers that resist delamination.
Dow coextrudes the layers to give them improved electrical performance since they can meet very high voltage requirements. High adhesion between the layers is maintained even after severe thermal treatment.
The new films complement other Dow products used in solar power generation, including Adcote solvent-based adhesives, Morfree laminating adhesives and electronic materials.
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