What
What are Flame Retardants?
Flame Retardants: The Dilemma between Safety and Sustainability
Flame retardants are chemical additives that can suppress or delay the combustion of materials. They are commonly added to plastics, rubber, coatings, electronics, and electrical products. In electronics, construction, and transportation, they play a crucial role in fire prevention and protection.
However, some flame retardants (such as PBDEs, HBCD, SCCPs) have been proven to be persistent, bioaccumulative, and toxic. They may release corrosive gases and dioxins during combustion, posing risks to health and the environment. Therefore, flame retardants have become a focal point under the dilemma of "safety versus sustainability."
Applications and Contributions of Flame Retardants in Industry
Traditional flame retardants are mainly halogenated (brominated, chlorinated), such as PBDEs (polybrominated diphenyl ethers), HBCD (hexabromocyclododecane), and short-chain chlorinated paraffins (SCCPs). Over the past decades, these flame retardants have been widely applied in electronics, plastics and rubber products, construction materials, transportation, and textiles:
The following lists, but is not limited to, high-risk components in the electronics field. Protection and safety are indispensable from appearance to internal components.
- Printed Circuit Boards: Prevent overheating or short circuits from causing fires
- Cables and Wires: Prevent flames from spreading along the wires, enhancing electrical safety
- Plastic Housings and Components: Combine heat resistance, structural support, and fire safety
- Batteries: Suppress electrolyte combustion, improving safety
- Encapsulation Materials: Prevent component failure or ignition
| Component / Material |
Typical Use |
Flame Retardant Function |
| Printed Circuit Boards |
Core substrate of electronic products |
Prevents fires caused by overheating or short circuits |
| Cables and Wires |
Insulation and sheath materials |
Prevents flame propagation along wires, enhancing safety |
| Plastic and Rubber Components |
Housings, buttons, brackets, seals, cushions, thermal pads |
Slows flame spread, providing structural support and heat resistance |
| Connectors and Switches |
Plastic parts of sockets, connectors, switches |
Prevents ignition from arcing or overheating, ensuring flame resistance |
| Batteries |
Electrolytes, separators, housings |
Suppresses electrolyte combustion, improving overall battery safety |
| Encapsulation Materials |
Capacitor/resistor insulation layers, epoxy resins |
Provides heat and fire resistance, preventing component failure or ignition |