Solar cell protective sheet and its production method, backsheet for solar cell, and solar cell module

摘要

A solar cell protective sheet comprising a polymer substrate and a polymer layer, which satisfies at least one of the following conditions [1] and [2]:
[1] the polymer substrate is a surface-treated polymer substrate, and the polymer layer has a thickness of from 0.8 molecule:
wherein R 1 and R 2 represent hydrogen, halogen or monovalent organic group; n indicates 1 or more; and
[2] the sheet contains a first polymer layer containing an ultraviolet absorbent and a binder polymer on the polymer substrate, and a second polymer layer containing a binder polymer, in which the content of the ultraviolet absorbent is at most 1.0% by mass relative to the total amount of the binder.