Abstract
This report documents the research performed at the Solar Energy Research Institute (SERI) during fiscal year 1991 to develop ways to prevent delamination failure (known as tunneling) of silvered-polymer reflector materials. Several promising approaches have been identified and demonstrated that substantially reduce such failures. These approaches include (1) use of Tedlar edge tape rather thanthe recommended ECP-244 tape, (2) thermal treatment of laminated reflector/substrate constructions, and (3) application of silver to the polymer film through an alternative deposition process. Approaches 1 and 2 offer readily available engineering solutions to the delamination problem. Approaches 2 and 3 provide tunnel resistance over the entire surface of the reflector material, including theedges.
Original language | American English |
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Number of pages | 32 |
DOIs | |
State | Published - 1991 |
NREL Publication Number
- NREL/TP-257-4419
Keywords
- delamination
- metallized polymers
- tunneling