Solution for Testing Film Barrier Properties at High Temperatures
When developing electronics and solar panels, the R&D process should include moisture barrier testing at elevated temperatures. For example, solar panels are often exposed to different weather conditions, including both heat and humidity. A good moisture barrier should maintain its properties and performance even when exposed to extreme temperatures. Some tests must be conducted at high temperatures (e.g., 85°C) in accordance with the “damp heat test” portion of IEEE 1262 qualification specification for solar module exposure at 85°C and 85% RH for 1,000 hours.
To test WVTR of film samples at elevated temperatures, there are several solutions:
AMETEK MOCON Film Permeation Analyzers may be used with remote film test cells and the environmental test chamber.
For 100% RH WVTR testing inside a high temperature chamber, the closed bottom remote test cell is recommended. The open bottom remote test cell is best suited for high-temperature testing of WVTR and OTR with chamber-generated RH.
Alternatively, the AQUATRAN 3/38 H is a high throughput WVTR analyzer with a 4-cell capacity and the option to upgrade to test samples at temperatures up to 60°C.
For techniques on how to set up testing with MOCON Next Generation Film Analyzers with remote test cells in a high temperature chamber, we have developed two technical notes.
For details on the closed bottom remote test cell,
click here.
For details on the open bottom remote test cell,
click here.
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