and my country is the world’s major producer.

halogen-free flame retardants, also known as clean flame retardants and non-toxic flame retardants, refer to flame retardant mixtures made from phosphorus compounds and metal hydroxides as the main raw materials. compared with halogen-containing flame retardants, halogen-free flame retardants have the advantages of strong versatility, low toxicity, smoke suppression, high flame retardant efficiency, and good compatibility with materials, and are widely used in the field of engineering…