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Flame retardant principle and burning dummy principle

Release time: 2014-11-19 15:49


Flame retardant principle: To understand the principle of flame retardant fabric, we must first understand the burning process of the fabric. The burning process of the fabric is an extremely complex thermal oxidation reaction, and the basic elements leading to combustion are heat, oxygen and flammable gases. It is generally believed that the burning of fabrics has gone through the following three stages. Thermal initiation process, thermal degradation process and ignition process. The principle of flame retardant fabric is to add a certain amount of flame retardant to the fabric, which can increase the oxygen index, and the flame retardant effect is obvious.

Burning dummy principle:

In the combustion simulation environment laboratory, a total of 6 groups of 12 flamethrowers were installed around the combustion dummy. Each flamethrower can provide 84 (kw / m2) heat flow in 2 to 3 seconds, realistically simulating the real fire Critical deflagration flash. At the end of the experiment, by analyzing the data output by each sensor on the dummy and calculating the heat flux, the burn level, total burn area, and time of the second and third burns can be accurately reported on the skin surface of each sensor. .

Article source: Standard Group (Hong Kong) Limited


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