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Aramid flame retardant fabric can burn?

2018-09-01 15:57 | writer: admin

Textile is flammable fabric, in order to reduce the flammable textile fire accident, reduce the resulting human life and property
The safety hazards and the test of textile combustion performance have been the world's attention. Flame-retardant fabrics came into being, and we did
Flame retardant fabric refers to the fabric treated by flame retardant and contact with the flame for a certain time according to the prescribed method, and then remove the flame and determine the surface
Materials continue to flame combustion and non-flame combustion time, and the extent of fabric damage. The shorter the period of flame burning and the period of non-flame burning
, the lower the degree of damage, the better the flame retardant performance of the fabric; On the contrary, the flame retardant property of the fabric is not good.
The aramid fabric does not need to be post-treated to achieve the flame retardant effect. Aramid fiber has the function of flame retardant. Flame retardant but not
Won't burn. It means leaving the flame and being able to extinguish it on its own. Aramid starts carbonizing at 400 degrees. The afterburn time is less than 2 seconds.
In theory, a textile material has an oxygen index greater than 21 percent (the concentration of oxygen in the air in nature)
Self-extinguishing. Textiles are usually classified as flammable (LOI<20%), flammable (LOI = 20% ~ 26%) and incombustible (LOI = 20%) according to the size of oxygen index
Four grades: 26% ~ 34%) and noncombustible (LOI>35%). The oxygen index of aramid fabric (LOI<28%) belongs to the rank of refractory.
For flammability characterization of textiles, the available limit oxygen index (LOI) represents the minimum oxygen content required to maintain the continued combustion of combustible materials
Percentage of volume. Textile materials are classified into 4 categories according to LOI:
Non-combustible (LOI greater than or equal to 35%) textiles,
Non-flammable (LOI=26-34%) textiles, such as aramid, fluorocarbon, chloroprene, modified acrylic, modified polyester, modified polypropylene, modified polyvinylation, and modified polypropylene
Sex glue, PPS (polyphenylene sulfide), seaweed fiber, etc.
Combustible (LOI less than 26%) textiles, such as polyester, polyamide, vinylon, wool, silk, acetate, etc.;
Flammable (LOI less than or equal to 20) textiles, such as polypropylene, acrylic, cotton, hemp, viscose fiber, bamboo pulp fiber, soy protein fiber, milk protein fiber, etc. Although non-flammable fibers have good flame retardant effect, most of them are not suitable for wearing or household use, while most natural or chemical fibers commonly used by people are flammable or flammable

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