Patent ID: 10622501

Abstract:
The present invention discloses a co-extruded one-time-formed solar cell module backboard in a three-layer structure. The backboard is formed by co-extruding three layers: a middle layer located in the middle as well as an outer layer and an inner layer located at two sides of the middle layer, and has high water resisting capability, high reflective rate, good long-term aging resistance performances of hydrolysis resistance, UV resistance and heat resistance and good recoverability and environmental protection performance. Compared with the prior art, the backboard has better water resisting ability, higher reflectivity, better long-term aging resistance performances of hydrolysis resistance, UV resistance and heat resistance, better recoverability and environmental protection performance and lower cost. Compared with a backboard in a co-extruded structure in the prior art, the backboard of the present invention has better heat resistance, better dimensional stability and higher mechanical breaking strength.