abstract |
A polymer film including polyvinyl acetal and laminated glass prepared using the same are provided. At least one surface of the polymer film has a void volume (Vv) value in the range of 3 μm 3 /μm 2 to 34.3 μm 3 /μm 2 at a material ratio of 10%, wherein the void volume (Vv) and material ratio are ISO 25178 -2:2012 as defined. |