What kind of fabric is flame retardant cloth? It is a cloth that is fireproof and flame retardant.
There are two ways to achieve flame retardant and fireproofing effects on flame retardant cloth. One is to copolymerize flame retardant monomers and polymers or add flame retardants to the polymers and make them through miscibility processing. into blended fibers, and then woven into flame-retardant fabrics; another method is the post-finishing process, which is to treat the Oxford cloth with flame retardant by spraying, padding or coating to make it flame-retardant when exposed to fire. The agent will undergo physical and chemical reactions to achieve flame retardant effects.
How to evaluate the flame retardant performance of flame retardant fabric
On the one hand, it depends on the burning performance of the fabric: judge from the burning rate of the flame retardant fabric , that is, the fabric after flame-retardant finishing is in contact with the flame for a certain period of time according to the prescribed method, and then the flame is removed, and the time for the flame-retardant cloth to continue burning with fire and the time for burning without flame are measured, as well as the degree of damage to the flame-retardant cloth. The shorter the flame burning time and the flameless burning time, and the lower the degree of damage, the better the flame retardant performance of the flame retardant fabric; otherwise, the flame retardant performance of the fabric is poor.
The other is to judge by the oxygen index: flame-retardant cloth requires oxygen to burn. The oxygen index is an expression of the oxygen required for fiber burning, so it can be determined by measuring the oxygen index. For the flame retardant properties of flame retardant cloth, the higher the oxygen index, the higher the oxygen concentration required to maintain combustion, which means the more difficult it is to burn: This index can be used to measure the minimum volume of oxygen required for a sample to maintain candle-like combustion in a nitrogen and oxygen mixed gas. Expressed as a percentage. If the oxygen index is less than 20%, it is a flammable fiber; if the oxygen index is between 20 and 26%, it is a flammable fiber; if the oxygen index is between 26 and 34%, it is a flame-retardant fiber; if the oxygen index is above 35%, it is a non-flammable fiber.
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