A large of systems filled with non-halogen agent, such as PNP, melamine, aluminum silicate, diammonium phosphate, talcum powder, phosphate, zinc borate were discussed.

讨论了各种无卤阻燃体系，如膨胀剂PNP、三聚氰胺、硅酸铝、磷酸二氢铵、滑石粉、磷酸酯、硼酸锌等新型的阻燃剂以及与其他阻燃剂并用对体系的影响。