The principle of flame retardant non-woven fabric

In some fire-prone areas, flame-retardant non-woven fabrics are often used. Flame retardant non-woven fabrics can be divided into: polyester flame retardant non-woven fabrics, polypropylene flame retardant non-woven fabrics and viscose flame retardant non-woven fabrics according to the material. The following small series will introduce the characteristics of each of these types.

The main component of polyester flame retardant non-woven fabric is polyester, which is a polymer product of terephthalic acid or diethyl terephthalate and ethylene glycol. Polyester fiber belongs to chemical fiber. Its characteristics are: good light resistance, corrosion resistance, high strength, good elasticity, good heat resistance, lubricating appearance, good wear resistance, and poor dyeability.

The flame retardant mechanism is primarily the addition of flame retardants. Flame retardant is an additive for materials, usually used in polyester plastics, textiles, etc. It is added to polyester to improve the ignition point of the material, or prevent the material from burning to achieve the purpose of flame retardant, thereby improving the fire safety of the material. sex.

There are many kinds of flame retardants, including halogen flame retardants, organic phosphorus flame retardants and phosphorus-halogen flame retardants, intumescent flame retardants and inorganic flame retardants. The most widely used brominated flame retardants are halogenated flame retardants.

Viscose fiber belongs to regenerated cellulose fiber, which has the characteristics of good hygroscopicity, lower breaking strength than cotton, environmental protection and non-toxic.

Polypropylene fiber flame retardant non-woven fabric is a synthetic fiber made of propylene as raw material, featuring: high strength, good wet and dry strength, abrasion resistance and corrosion resistance. Viscose fiber belongs to regenerated cellulose fiber, which has the characteristics of good hygroscopicity, lower breaking strength than cotton, environmental protection, non-toxicity, and higher price than other fibers.