Table 1
Sustainable encapsulant material candidates for PV module construction.
| # | Material description | Sustainable feature | Pros and Cons |
|---|---|---|---|
| 1 | Blend of vinylacetat/vinyl laurat copolymer, polyvinyl acetate and polylactic acid (PLA#1)* | Bio-based, Bio-degradable | Pros: suitable optical properties, good adhesion to glass Cons: too rigid, bad adhesion to backsheet |
| 2 | Bio-based EVA* | Bio-based | Pros: nearly same properties as oil-based EVA Cons: higher cost, somewhat lower transmittance, additives necessary Material procurement difficult, not part of this study |
| 3 | EVA with bio-degradable additive* | Bio-degradable | Pros: nearly same properties as oil-based EVA Cons: somewhat lower transmittance, additive performance not guaranteed Combination with standard EVA Masterbatch (Ref2) |
| 4 | PLA#0 | Bio-degradable | Poor adhesion to glass and therefore not taken into account |
| 5 | Polybutylene adipate terephthalate (PBAT) | Bio-based, bio-degradable | Pros: suitable mechanical properties Cons: low transmittance |
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