Flame retardant short fiber flame retardant mechanism:

(1) Sucking effect. A flame retardant having a high heat capacity, a heat-insulating reaction such as phase change, dehydration or dehydrogenation, reduces the temperature of the fiber material surface and the temperature of the flame region, and suppresses the rate of the thermal cracking reaction in high temperature.

(2) Cover the protection role. After the flame retardant is heated, the glass-shaped cover layer is melted on the surface of the fibrous material, which is a barrier between the agglomeration phase and the flame. Both oxygen, block the diffusion of the flammable gas, but also block heat conduction and heat radiation, reduce the heat feedback to the fiber material, thereby suppressing thermal cracking and combustion reactions.

(3) Gas dilution effect. The flame retardant heat-absorbing decomposition releases nitrogen, carbon dioxide, sulfur dioxide, and ammonia, the flammable gas such as the fibrous material is diluted to the combustion limit below the combustion limit. Or insufficient oxygen in part in the center of the flame center, prevent combustion continues. In addition, this non-flammable gas also has heat dissipation. Their flame retardant effect is: N2> CO2> SO2> NH3.

(4) Conradic phase flame retardation. Through the function of the flame retardant, the thermal cracking reaction process of the fiber macromolecular chain is changed in the agglomeration phase reaction zone, which causes dehydration, condensation, cyclization, crosslinking, etc., until carbonization, to increase carbonized residue, reduce flammable gas Generation, the flame retardant exerts a flame retardant effect in the agglomeration phase. The effect of aggluting the flame retardant effect is closely related to the matching of the flame retardant in the chemical structure.

(5) gas phase flame retardation. A small amount of inhibitor is added, capturing a large number of lightweight free radicals and hydrogen radicals in the flame region, reducing the radical concentration, thereby inhibiting or interrupting the combustion reactions, exerts a flame retardant effect in the gas phase. The chemical structure of the gas-phase flame retardant effect on fibrous materials is not sensitive.

(6) Surface effect of fine particles. If a quantity of inert fine particles are mixed in the combustible gas, it can not only absorb the combustion heat, reduce the flame temperature, and, as the wall surface of the container, a large amount of high energy hydrogen radicals in the gas phase combustion reaction is applied to the surface of the particles. Transition into low energy hydrogen peroxy-free radicals, thereby inhibiting gas phase combustion.

(7) Sollow drop effect: some thermoplastic synthetic fibers, such as polyamides, polyesters, shrinking droplets during heating, decreased with the contact area of the air, even the droplets falling and left the fire source, so that the combustion is subject to certain Hinder.

Flame retardant short fiber product use

Protective clothing.

2. Household items.

3. Decorative supplies.

4. Celebrity and minor costumes.

5. Non-woven fabric and filler.

Flame retardant short fiber characteristics:

1, good security. The fiber is not melted when the fiber is fired, and the low smoke does not release the gas.

2, permanent flame retardant effect. Washing and friction, etc. Will not affect flame retardancy.

3, environmental protection. The waste can be naturally degraded with natural cellulose fibers, and the waste can be naturally degraded.

4. Excellent permanent flame retardant fire prevention performance. There is a good manifestation in preventing flame spread, smoke release, anti-melting, and durability.

5, good insulation and anti-static properties. Provide all-round thermal protection.

6, flame retardant short fibers have natural fiber properties. The fabric has a natural fiber having the absorbent properties, the fabric has a soft, comfortable, breathable, and bright and bright.