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发明公开
CN103459540A 太阳能电池用粘合剂 有权

太阳能电池用粘合剂
摘要：
本发明的目的是提供太阳能电池背板用粘合剂，其在制造太阳能电池背板时具有良好的对膜的初粘力和熟化后具有良好的对膜的粘合强度，并且还具有优异的长期耐侯性和耐水解性。另一目的是提供可通过使用所述粘合剂得到的太阳能电池背板，和可通过使用所述背板得到的太阳能电池模块。公开了可通过丙烯酸类多元醇(a1)与异氰酸酯化合物(a2)反应得到的太阳能电池背板用粘合剂，其中所述丙烯酸类多元醇(a1)具有20℃或更低的玻璃化转变温度。所述粘合剂在制造所述太阳能电池背板时具有良好的对膜的初粘力和熟化后具有良好的对膜的粘合强度，并且还具有优异的长期耐侯性和耐水解性。更优选其中所述丙烯酸类多元醇(a1)具有0.5-40mgKOH/g的羟值的所述太阳能电池背板用粘合剂。
摘要（英）：

The purpose of the present invention is to provide: an adhesive for solar cell back sheets that has good initial adhesion to a film and strong adhesion to the film after curing during solar cell back sheet production and has excellent long-term weather resistance and excellent resistance to hydrolysis; a solar cell back sheet obtained using same; and a solar cell module obtained using same. The adhesive for solar cell back sheets, obtained by reacting an acrylic polyol (a1) and an isocyanate compound (a2) and having a glass transition temperature for the acrylic polyol (a1) of 20 DEG C or lower, has good initial adhesion to the film during solar cell back sheet production and strong adhesion to the film after curing, and also has excellent long-term weather resistance and excellent resistance to hydrolysis. A solar cell back sheet adhesive having an acrylic polyol (a1) with a hydroxyl group value of 0.5-40 mgKOH/g is more desirable.

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