Based on the core functions of flame retardants discussed earlier, you can select the appropriate product by systematically evaluating the following key dimensions-balancing performance, regulatory compliance, and cost:
Define Core Requirements and Application Scenarios
Confirm flame retardancy grade requirements
The electronics and electrical industry typically requires a UL94 V-0 rating; construction materials must meet stricter standards regarding low smoke emission; and automotive interiors must additionally comply with requirements for low odor and low VOC emissions.
Match with base material characteristics
For halogen-containing materials like PVC, synergistic phosphorus-based flame retardants are preferred; engineering plastics like nylon are suited to nitrogen-based or intumescent formulations; and resins for fiberglass-reinforced plastics (FRP) are best paired with inorganic flame retardants such as aluminum hydroxide.
Verify Environmental Compliance
Prioritize halogen-free, low-toxicity, and low-smoke products. Ensure compliance with major environmental standards such as the EU's RoHS and REACH directives to avoid regulatory risks during market circulation or export.
Align with Processing Conditions
If processing temperatures exceed 300°C, select specialty flame retardants with high thermal stability to prevent decomposition or loss of effectiveness during processing.
For applications involving fiber spinning or film production, choose products with good compatibility with the base material to avoid compromising physical properties such as spinnability or tensile strength.
