The full name of PVB is polyvinyl butyral, abbreviated as PVB resin. PVB molecules contain long branched chains, which have good flexibility, excellent transparency, strong adhesion, good light resistance, heat resistance, cold resistance, water resistance, film-forming, solubility, miscibility, high tensile strength and impact resistance etc. Now PVB resin could be divided into two kinds according to the relative molecular weight, i.e. high viscosity type and low viscosity type, in which high viscosity PVB resin is mainly used in the laminated safety glass. Besides, sometimes PVB resin exists in the form of polymer solution, which is widely used for coatings, adhesives, ceramic color film, vacuum aluminum foil, electrical materials, glass steel products, fabric treatment agent, engineering plastics and other fields; and it is a kind of synthetic resin material with a broad prospect for application.

Technical Data of Architectural Clear PVB Film

Technical Data of Automotive PVB Film

Technical data of PVB film for solar photovoltaic module

The lamination of float glass and PVB intermediate film the method is that the multilayer float glass is bonded with polyvinyl formal intermediate film and treated with high temperature and pressure to make them become a transparent whole, forming a bulletproof glass.

MB-Ionic glass interlayer is the ionic polymer interlayer film. The MB-Ionic glass interlayer film has excellent properties, its tear strength is 5 times as high as that of PVB film, and its hardness is 30-l00 times. At low deformation rate, MB-Ionic glass interlayer laminated glass exhibits elastic-plastic properties, while PVB exhibits super-elastic-plastic properties.

隔音中间膜的隔音性能，是在人耳最容易听见的声音频率范围(1000-4000赫兹)附近，隔音性能比普通中间膜还要提高5分贝。