What Are The Ways To Improve Flame Retardancy？

Here are some common methods:

1. Surface modification: The use of coupling agents such as silane and titanate surface treatment of inorganic flame retardants to improve their compatibility and interface affinity with polymers.

2. Super refinement: the inorganic flame retardant is super refined or nano to enhance its compatibility with synthetic materials, reduce the amount, and improve the flame retardant effect.

3. Compound coordination: different types of flame retardants are used in combination to complement their performance, reduce the total amount of flame retardants and improve the flame retardancy, processing performance and physical and mechanical properties of the material.

4. Crosslinking: Add a small amount of crosslinking agent when the thermoplastic is processed, so that the plastic becomes a partial network structure, improve the dispersion of the flame retardant, and improve the flame retardant performance.

5. Microencapsulation: the flame retardant is crushed and dispersed into particles, encapsulated with organic or inorganic substances to form microencapsulated flame retardants, improving the stability of flame retardants and the compatibility with resins.

6. Nano-flame retardant: Using the special size and structural effects of nano-materials, it is added to combustible materials as a flame retardant, changing the combustion performance of the material and improving the flame retardant performance.

7. Adding nitrogen flame retardants: nitrogen flame retardants have the advantages of low toxicity, low corrosion, high flame retardancy efficiency, and no conflict with additives, etc., and can make PA reach UL94V-0 level when used alone.

8. Adding phosphorous flame retardants: phosphorous flame retardants generate oxy-containing acid at the initial stage of combustion, reducing the concentration of combustible gas generated by thermal decomposition of polymers, generating carbon layers to isolate external combustion gases and heat, showing good flame retardant effect.

9. Add inorganic flame retardants: Common inorganic flame retardants include aluminum hydroxide, calcium hydroxide, magnesium hydroxide, etc., non-toxic, low smoke, low cost and other advantages make it widely used in plastic flame retardant.

These methods can be selected and combined according to the specific application requirements and material characteristics to achieve the best flame retardant effect.