PVB middle layer films use for produce saft glass
PVB Film is a macro molecule material made with Polyvinyl Butyral resin plasticized and extruded by plasticize and additives,and mainly used for producing laminated safety glass.
The advantages and characteristics of PVB layer films
High Safety building material:
Due to high tenacity and adhesion of PVB films, the films can endure external impact and are hard to penetrate through. Although the glass might be broken, it reduces the damage level dramatically since the glass fragment will not scattered around.
High Energy saving building material:
PVB films can reduce radiations from the sun to penetrate into buildings and automobiles, which can balance the high temperature sunlight. Thus, will save electricity consumption for air-condition in buildings and automobiles effectively.
Sound proof:
PVB films have a good characteristic of Sound proof, which not only block external noise from outside but also provide a private space.
Absorption of UV rays:
PVB films have a good characteristic of UV rays absorption, prevent discoloration due to UV rays from the sun.
Aesthetics of buildings:
PVB films provide multiple colors to choose, harmonizing with the surroundings and satisfying designers demand.
Technical parameters
| 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 |
Every PVB layer rolls should be sepatared by PE film and vacuumed by aluminum foil,and put into wooden case.
The product should be stocked in a clean warehouse and normal temperature.It is prohibited to leave it under direct sunlight.Once the packing is broken or opened,it should be stocked under temperature of 15-25 ℃ and a relative humidity of 20%-40%.
Well-packed and under nomal temperature,the product has a quality guarantee of 2 years.
Product Tags:
|
|
OEM Safety Laminated Glass Interlayer , Polyvinyl Butyral Interlayer High Tenacity Images
|
