Function and characteristics of fire-resistant glass materials

Fire-resistant glass is a new type of functional material for construction, with good light transmittance and fire-retardant properties. It has unique characteristics such as high heat resistance, light specific gravity, high light transmittance, no yellowing, and no bubbles. Fireproof glass with good performance still has good fireproof and flame retardant properties at high temperatures above 1000°C.
    Composite fire-resistant glass (or fire-resistant laminated glass) is made by bonding two or more single-layer flat glasses together with an expanding flame-retardant adhesive; among them, the infusion-type fire-resistant glass is composed of two or more pieces of single-layer flat glass. Two or more pieces of single-layer flat glass are first sealed with frame strips, and then filled with fire-proof liquid through the pouring port, cemented, and sealed. At room temperature and in the early stages of a fire, composite fire-proof glass is the same as ordinary flat glass. It has light-transmitting properties and decorative properties; after a fire occurs, as the fire spreads and expands, the fire temperature rises, and the fire-resistant interlayer of composite fire-resistant glass expands and foams when heated, forming a very thick fire-resistant and heat-insulating layer.It plays the role of fireproof heat insulation and fireproof separation. However, composite fireproof glass generally has problems such as tiny bubbles, cold resistance, and poor light transmittance, which affect its effectiveness.

Thin coated fire-resistant glass is made by spraying fire-resistant transparent liquid on the surface of single-layer or multi-layer flat glass substrate, drying and curing it to produce fire-resistant glass. When thin coated fire-resistant glass encounters fire, the fire-resistant protective layer expands due to heat, forming a dense fire-resistant protective layer to protect the substrate glass and prevent the spread and expansion of the fire.
The difference between energy-saving fireproof windows and ordinary windows

 (1)From the perspective of the glass function of windows, the glass of fire-resistant windows must be tempered; while the glass of ordinary windows is not necessarily tempered glass.

 (2)The glass of fire-resistant windows generally must have fire-resistant signs, while ordinary glass does not. Fireproof glass can be filled with fireproof liquid that does not affect the fire resistance test of fireproof windows and has passed the test. The transmittance of the glass shall not be lower than 75% of ordinary flat glass with the same number of layers.

 (3)From the material point of view, fireproof windows are generally made of steel, and the common ones are plastic steel, aluminum alloy, and wood.

 (4)From a price point of view, the price of steel fireproof windows for buildings is higher than that of ordinary aluminum alloy windows.