Polycarbonate (PC) is a multifunctional polymer composed of repeating carbonate units that give it a unique combination of properties. It offers high transparency, excellent impact strength, dimensional stability, and good electrical insulation properties. However, its flammability limits its use in fire-sensitive environments.
Flame retardancy is critical to ensuring the fire safety of PC products, and flame retardant additives can be added to a PC to enhance its flame retardancy, flame spread, and exothermic properties. These additives work through mechanisms such as charring, heat absorption, and the generation of non-flammable gases. By interrupting the combustion process, they help minimize the risk of fire spread and reduce the release of toxic gases.
Alfa Chemistry offers an extensive line of flame retardant PC masterbatch products. Flame retardant PC masterbatch is a concentrated blend of flame retardant additives dispersed in a PC carrier resin. It is specially formulated to provide flame retardancy to PC-based products while retaining their mechanical properties. The masterbatch is produced by a blending process in which the flame retardant additives are uniformly mixed with the PC resin in precise proportions.
The following are some of the common types of flame retardant additives used in PC masterbatch formulations:
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