Differences between laminated glass, hollow glass and vacuum glass


  • May 1, 2019


Glue-bonded glass (laminated glass) is a composite glass product, which is made of two or more pieces of glass with one or more layers of organic polymer intermediate film. After special high-temperature pre-pressing (or vacuum) and high-temperature and high-pressure treatment, the glass and intermediate film are permanently bonded together.

Hollow tempered glass is composed of two or three pieces of tempered glass. The glass sheet is bonded with aluminium alloy profiles containing desiccant by using high strength air-tight composite binder to make high performance sound insulation and heat insulation windows. It is a common choice for doors, windows and balconies nowadays.

High performance tempered hollow glass has a special layer of metal film, which can reach 0.22-0.49 shielding coefficient. It can effectively reduce the load of air conditioning and save energy and low carbon. Tempered glass has a very high safety factor, its high strength is 4-5 times that of ordinary glass, and its thermal stability is very good. Even if it is broken, it is similar to honeycomb-shaped small blunt angle particles, which will not cause significant harm to human body. Block the solar radiation, prevent the discomfort caused by radiation heat; sound insulation function is strong, can keep a quiet indoor home environment; at the same time, its rich color, beautiful and generous.

Vacuum glass is a new type of glass based on the principle of thermos flask. It is a kind of glass that two pieces of flat glass are sealed around, and the air in the gap is emptied and the exhaust holes are sealed. Its structure is similar to that of hollow glass, but the gas in the vacuum glass cavity is so thin that it is almost vacuum. At least one piece of vacuum glass is low radiation glass, which can reduce the heat loss due to the conduction, convection and radiation of vacuum glass.

Vacuum glass can reduce air conditioning power consumption and greenhouse gas emissions, low carbon energy saving; its vacuum layer can effectively block the transmission of sound, play a sound insulation effect; in summer can control outdoor heat transfer, keep indoor cool; in winter can also maintain indoor heat transfer.