RESIN COMPOSITION FOR SOLAR CELL-SEALING MATERIAL

摘要

Disclosed is a resin composition for a solar cell-sealing material, which enables the improvement in initial conversion efficiency of a solar cell module, the prevention of the deterioration in transparency of a resin, the prevention of the deterioration in adhesion to a protective member as time elapsed, and the prevention of the reduction in conversion efficiency. The resin composition comprises an ethylene copolymer and at least one substance selected from (i) a compound represented by formula (1), (ii) a burned product of the substance (i), (iii) a compound represented by formula (2) and (iv) a burned product of the substance (iii). The substance (i) has an average plate surface diameter of 0.01 to 0.9 µm and a refractive index of 1.45 to 1.55, and the substance (iii) has an average plate surface diameter of 0.02 to 0.9 µm and a refractive index of 1.48 to 1.6. Mg1-a·Ala(OH)2·Ann- a/n·bH2O ··· formula (1) (0.2 = a = 0.35, 0 = b = 1, An: an anion having a valency of n) (McMg1-c)1-d·Ald(OH)2·Bmm- d/m·eH2O ··· formula (2) (M represents a metal selected from Ni, Zn and Ca, 0.2 = c = 1, 0.2 = d = 0.4, 0 = e = 4, Bm: an anion having a valency of m)