Characteristics of Glass SGP film,SGP interlayer,ionic interlayer,ionoplast interlayer
Edit: Date: 2017-06-09
Now, can meet the construction curtain wall interlayer film for laminated glass, the performance requirements of the Glass ionic interlaye has been developed by the DuPont Co, and mass production, product name to SGP. This laminated film has many excellent performances.
Characteristics of Glass ionic interlaye
(1) with high strength and shear modulus and excellent mechanical properties, the shear modulus of SGP is more than 50 times that of PVB, and the tear strength is 5 times higher than that of PVB. SGP laminated glass, the force between two glass layer is basically not slide, monolithic glass overall two pieces of glass as a film thickness etc.. As a result, the carrying capacity is 2 times the carrying capacity of PVB laminated glass of equal thickness; at the same time, the flexural deflection of SGP laminated glass is only 1 / 4 of that of PVB laminated glass under the condition of equal load and equal thickness.
As the bearing capacity increases and the deflection decreases, the glass thickness decreases accordingly. It is possible to reduce the amount of glass by about 40%, and accordingly reduce the weight of the curtain wall. Not only conducive to the design of the main structure, but also energy saving materials, because the production of each standard box float glass to consume standard coal 16Kg, power consumption of 7.5 degrees. If you add tempering, homogenizing and so on, the energy consumption will be more.
(two) it has good edge stability and can be exposed without edge closure; edge stability refers to the durability of the edge of laminated glass exposed to atmospheric conditions. PVB glue not resistant to moisture, water vapor under the action of plastic, easy separation, exposed edge edge processing requirements. The SGP film has good edge stability, not sensitive to water, can not be separated in the open and exposed conditions, can use, without edge. So SGP laminated glass can be conveniently used for component board, canopy, cantilever wing, decorative glass glass sunshade plate exposed edge without adopting special sealing measures.
(three) after the breakage of the glass, there is enough surplus bearing capacity, and the whole piece will not fall
Ordinary PVB laminated glass, especially tempered laminated glass, once broken, it will produce great bending deformation, and there is a risk of falling off the whole piece. When the glass is installed horizontally on the top of the skylight, the risk is greater. The accident happened in the Beijing Xiangshan botanical garden.
SGP film laminated glass of good integrity, the tear strength of SGP laminated film is 5 times that of PVB laminated film, even in case of broken glass, SGP film can also bond broken glass to form a temporary structure after the destruction, the bending deformation is small, can bear a certain amount of loads without a fall. This greatly improves the safety of the glass.
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