SGP film is an ionic film. It is a copolymer of ethylene and methacrylate as the main components. It contains 1% metal sodium ion. The adhesion between the film and glass is mainly due to the ionic bond. It is more widely used in the market. The adhesion of PVB film to glass is the formation of a bonding force between the COH group in the film and the Si-OH hydrogen bond in the glass. The bonding strength of the glass interlayer produced with SGP film is much higher than that of glass produced with PVB film, the shear modulus is increased by 50 times, and the tear strength can also be increased by 5 times.
Modern buildings are getting higher and higher and larger in volume. The facades of super high-rises and super-large buildings need to withstand greater wind loads, system stress generated by the structure, earthquake action and temperature changes, and glass is required. It has higher load-bearing capacity and rigidity requirements, and in case of glass explosion damage at high altitudes, there must be a certain residual adhesive force without falling. The laminated glass produced by SGP film is very suitable for ultra-high buildings and large buildings. The facade glass of the building.
In places prone to personal injuries, such as passageways, street-facing buildings, glass roofs of waiting rooms, glass patios, inclined glass windows, curtain walls, etc., laminated glass effectively prevents personal injury caused by broken glass. As well as places with higher safety requirements, such as museums, banks, exhibition halls, office halls, jewelry stores, etc., SGP film laminated glass is currently the best and more economical choice.
