Laminated glass



Laminated glass is a composite glass product made of two or more pieces of glass with one or more layers of organic polymer intermediate film sandwiched between them. After special high-temperature preloading (or vacuum pumping) and high-temperature and high-pressure processing, the glass and the intermediate film are permanently bonded together，Glass product   .

Common intermediate films of Laminated glass include PVB, SGP, EVA, PU, etc.



In addition, there are some special ones, such as Laminated glass with colored intermediate film, Laminated glass with SGX type printing intermediate film, and Laminated glass with XIR type LOW-E intermediate film. Embedded decorative parts (metal mesh, metal plate, etc.) Laminated glass, embedded PET material Laminated glass and other decorative and functional Laminated glass.



Main types



According to the different melting points of the intermediate membrane, it can be divided into: low-temperature Laminated glass, high-temperature Laminated glass and insulating glass;

According to the different materials sandwiched in the middle, it can be divided into many types, such as paper, cloth, plants, wire, silk, metal wire, etc;



According to the different bonding methods between the interlayer, it can be divided into: mixed Laminated glass, dry Laminated glass, hollow Laminated glass;



According to the different layers of interlayer, it can be divided into general Laminated glass and Bulletproof glass.



Material characteristics



Even if glass breaks, fragments will stick to the film, and the surface of the broken glass remains clean and smooth. This effectively prevents the occurrence of debris stabs and penetrating falls, ensuring personal safety. In Europe and the United States, most building glass uses Laminated glass, which is not only to avoid injury accidents, but also because Laminated glass has excellent seismic intrusion resistance. The intermediate membrane can withstand continuous attacks from lethal weapons such as hammers and cleavers, and can withstand bullet penetration for a considerable period of time. Its level of safety precautions can be described as extremely high. The glass is safe to break and may shatter under heavy ball impact, but the entire glass still maintains an integrated interlayer, with fragments and sharp small fragments still sticking together with the intermediate film. When this type of glass breaks, the fragments do not disperse and are often used in vehicles such as cars. Tempered glass requires significant impact force to break, and once broken, the entire glass bursts into countless fine particles, leaving only a small amount of broken glass in the frame. Ordinary glass shatters upon impact, resulting in many elongated sharps in a typical crushing condition. When the wire glass is broken, the mirror tooth shaped fragments surround the hole, and there are many glass fragments left around the penetration point, and the length of the metal wire fracture varies.