Ionized interlayer(SGP film,SGP interlayer,ionic interlayer,ionoplast interlayer ) laminated glass
2017-06-05
At present, the glass curtain wall laminated glass widely used in the middle film is polyvinyl butyral, referred to as PVB. PVB has been used for many years history, but also generally familiar with the curtain wall industry. However, this plastic film was originally developed for automotive glass, so its performance is mainly to meet the following requirements of automotive glass: 1. Can reliably bond glass, reduce the scattering of broken glass, the maximum protection of the safety of drivers and passengers. 2. Can prevent stones and other small objects from falling into the glass. 3. There is a certain degree of softness, to prevent the driver's head violently impact the windshield, and to prevent the car personnel flying out of the car. 4. To meet the use of automotive functions, in line with optical, noise reduction, blocking UV and other requirements. Because PVB film is mainly not developed for the construction curtain wall, so it is flexible, relatively soft, small shear modulus, the two pieces of glass between the force will have a significant relative slip, bearing capacity is small, bending deformation Larger. PVB laminated glass can be used for general glass curtain wall, not suitable for high performance requirements of the glass curtain wall. At the same time, PVB laminated glass exposed edge easy to moisture open plastic, PVB film laminated glass after a long time easy to yellowish color, these are should be noted. The ideal interlayer of laminated glass interlayer should meet the following requirements: 1. The glass has a high bonding capacity, a strong tear strength, to prevent the glass break when flying. 2. Have a strong ability to protect, can prevent the destruction of natural forces and manpower. Strong resistance to strong winds, earthquakes, violence, theft, etc. 3. Can withstand the sudden impact of indoor staff to prevent the glass flying or the overall out of the room to avoid falling out of the staff. 4. There is sufficient residual bearing capacity, the glass is broken and then bending deformation will not block off. 5. The middle membrane has a large shear modulus, so that the two glass as much as possible the whole section of the bending work, thereby enhancing the glass bearing capacity and bending stiffness, reduce the thickness of the glass to reduce the glass's own weight. 6. Colorless and transparent, can withstand UV, water vapor and the impact of external climate change, long-term use is not yellowing. PVB film currently used in the film(SGP film,SGP interlayer,ionic interlayer,ionoplast interlayer ) can not fully meet the above requirements. It is necessary to develop a higher performance curtain wall laminated glass special interlayer, to meet the high-rise building curtain wall, large-span lighting roof, large size laminated glass, all-glass structure of the laminated glass of high standards.
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