What Conditions Should the Flame Retardant Be Used in Foamed Plastics?

What conditions should flame retardants be used in foamed plastics? As the application scope of rigid polyurethane foam has gradually expanded, it has higher requirements for foam properties, and flame retardants are the most important problems.
Hard polyurethane foam is widely used in refrigerators, freezers, freezers, freezers and other insulating materials, buildings, storage tanks and pipeline insulation materials, the most fundamental disadvantage is flammable.

What Conditions Should the Flame Retardant Be Used in Foamed Plastics?
1. The performance of foam has a small impact;
2. Add less and the effect is good;
3. Flame retardant effect does not decrease with time;
4. Non-toxic or very small toxicity to ensure safe use;
5. And the mixing of raw materials are good;
6. Liquid flame retardant viscosity can not be too large;
7. Do not corrode equipment devices;
8. Low price.