光学用聚乙烯醇膜
特征是光学用聚乙烯醇膜,其在30℃重水中的利用由脉冲NMR得到的弛豫曲线计算出的结晶量为28~34%,在70℃重水中的利用由脉冲NMR得到的弛豫曲线计算出的结晶量为7~10%。由此,可提供PVA膜,其没有拉伸加工中的端部折断,即使将拉伸倍率高倍率化也不会发生断裂,能够制造光学性能优异的偏振膜。
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