Automotive PVB Film
PVB film for automobile windshields
PVB interlayer film for laminated glass provides a wide variety of solutions like safety, security, UV blocking, Sound, Solar, Design and the adaptability of Head-up Display.
|
Thickness |
Length |
Width |
|
0.38mm |
350m |
600-2500mm |
|
0.76mm |
200m |
600~2500mm |
|
1.52mm |
100m |
600~2500mm |
Specification and parameters for PVB applied in car
|
Index Item |
0.76mm |
|
|
appearance and quality |
appearance |
The surface is flat without scratch; wrinkles or adhesion is not allowed.；If there is a ribbon zone, the color of the ribbon zone should be uniform and the transition zone width should be uniform. |
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Crystal point, water wave |
The crystal points, dimension is less than 2mm, are not allowed to exist intensively; no water marks are visible. |
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Visible defects (points such as impurities, bubbles, blemishes, oil droplets, teardrops, etc.) |
Dimension is more than 0.5mm, less than 6 each 200m
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|
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The point of the diameter is 0. 5mm Defects are densely populated (Note 1), and each densely populated area is considered to be a defect with a diameter > 0.5 mm. The type and location of the defect should be stated in the packing list. |
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Thickness and dimension |
Thickness deviation（mm） |
±0.04mm |
|
Horizontal/longitudinal thickness uniformity |
he thickness deviation of any two points in the horizontal/longitudinal direction of 25mm is less than 15 μm; the thickness deviation of any two points in the horizontal/longitudinal direction is less than 25 μm; the thickness deviation of any two points in the horizontal/longitudinal direction is less than 50 μm. |
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|
length (m) |
≧ normal size |
|
|
width(mm) |
≧ normal size |
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Surface roughness （Rz） |
15-70 |
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Moisture (%) |
0.35~0.55 |
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Thermal shrinkage rate ( 60℃/15min)(%) |
≦8.0 |
|
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Tap value |
3~7 |
|
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Visible light transmittance(%) |
≧ 85 |
|
|
Haze(%) |
＜ 0.4 |
|
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Tensile Strength (MPa ) |
≧20.0 |
|
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Elongation at break (% ) |
≧ 200 |
|
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Yellow index(%) |
≦10 |
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Note 1: Dense presence means that within a circle of 300 mm diameter, there are 10 points of point defects, and the adjacent defect spacing is ≦5 mm. |
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