PVB heat insulation film is made of polyvinyl butyral resin and plasticizer after adding nano heat insulation media by the technology of extrusion and calendaring. The product is manufactured by original technology of Huzheng NanotechTM, which fills the domestic gaps of PVB heat insulation film production. It possesses high performance safe guard properties, excellent heat insulation function, good energy saving effect, noise-proof and security function.
2. Product Specification
(1) Safeguard property
HuzhengTM PVB film possesses high adhesive strength with glass. It can prevent the glass from penetration by hard things when the glass is impacted. The glass fragments are attached with interlayer of PVB so that they won’t hurt people.
(2) Energy saving
Laminated glass made by PVB interlayer film can effectively reject IR rays which attribute the glass good heat insulation properties and high energy saving efficiency. The product has high visible light transmittance (VLT) and VLT value can be adjusted by changing nano heat insulation media ratio.
(3) Security function
PVB film can produce rough laminated glass which makes interlayer film and glass attached together firmly. Even when the glass is broken, it can pertain its integration which can prevent thieves from broking in.
(4) Noise proof
Because HuzhengTM PVB films has damping function and it can constraint noise conduction of PVB laminated glass, especially for the laminated glass of airport, station, downtown area and roadway construction.
3. Product Properties
Properties and Results
0.38mm, 0.45mm, 0.76mm, 1.14mm
70±2℃, hum. 91-99%. After 48h, no change.
At 70±2℃. After 48h, no change.
At -55±2℃. After 48h, no change.
Light transmittance decrease less than 2% under 750W light source, 100h.
4. Application method
Change working conditions of PVB lamination room and then cleanse glass surface. After choice appropriate PVB film with similar size and then laminate PVB and glasses together. Treat laminated PVB film and glasses with pre-heat and pre-pressing. At last treat laminated glasses with high pressure and temperature to get final product.
Package: PVB interlayer films are separated by PE film and packaged with aluminum foil package. The package is placed into wood box or circle barrel.
Transportation: No sunshine, rain showering and drastic tremble is permitted in the transportation process.
Storage: The product must be stored in clean warehouse under normal temperature. And sunshine radiation must be avoided. It must be stored at temperature of 20℃±5℃ and relative humid of 20%-40% when the package has been open.
5. Application field
The product can be widely applied to laminated glasses of cars, locomotive, airplane, tanker and marine vessels as heat insulation film. It can be used to safe glass, safe face shield, construction glass and composite steel plate.