Heat Resistant Gray Flat PVB Film 0.76mm In Laminated Safety Glass
Specification:
No. |
Classfication
ltems |
0.38mm |
0.76mm |
1 |
Appearance |
|
1.1 |
Appearances |
Achromatic or slinghtly yellow lucid film With velvet surface that has no scar or crease . |
1.2 |
Dotted waste sundries and air buhbles |
|
|
≤0.05 |
Allowed if exist separately |
|
0.05 |
Not exceeding 8 places per film |
Not exceeding 5 places per film |
|
|
Making marks Define an extanded 0.5 metar film per place Add one extra meter par place |
2 |
Size |
|
2.1 |
Thickness ( mm ) |
0.38±0.02 |
0.76±0.02 |
2.2 |
Uniformity |
Horizontal thickness warp should not exceed 15um at a distance of 25mm; horizontal Ehickness warp Should not exceed 20um at a distance of 50cm. |
2.3 |
Length tolerance (m ) |
0-5 |
0-2 |
2.4 |
Width tolerance ( mm ) |
0-20 |
3 |
Moisture ( % ) |
0.4-0.6 |
4 |
Extending intansion ( MPa ) |
≥20.0 |
5 |
Ruplura extending rate (%) |
≥200 |
6 |
Fograge (%) |
<0.4 |
7 |
Shrinking rate (60/15min) ( % ) |
≤12 |
Description:
PVB is the abbreviation of polyvinyl butyral. PVB film is made from PVB resin and plasticizer. It is a
non-toxic and smell-free soft sheet material with thickness between 0.38mm and 1.14 mm. It is the
best material for the interlayer of safety glass.
PVB interlayer is a macromolecule material molded by polyviny, butyral resin that is plasticized and
extruded by plasticity. Our PVB film with excellent light transparency, heat and cold resistance,
elasticity, is well-sticking to inorganic glass and the making of laminated safety glass. Usual
thickness specification is between 0.2 mm - 2 mm.
PVB interlayer is mainly used in making laminated safety glass. Laminated glass is a special
glass which is inserted with PVB film between two layers of common glass, which under high
heating temperature and pressure, binds to create a single construction. Because of PVB
laminated glass with the function of safety, heat preservation, noise proof, and ultraviolet
resistance, etc, it is widely used in areas such as high-rise building and auto. PVB film
with special formula is also used in aeroplane, space flight