What impacts will the addition of flame retardants have on the properties of PP flame-retardant plates when manufacturing PP flame-retardant plates?

The influence of different flame retardants on polymer materials varies. Therefore, the selection of appropriate flame retardants should be based on the structure, properties, processing conditions, and application requirements of polymers.

Additive - type flame retardants are incorporated into polymers through mechanical mixing to render the polymers flame - retardant. Currently, additive - type flame retardants are mainly divided into organic and inorganic flame retardants. Organic flame retardants are represented by bromine - based, phosphorus - nitrogen - based, nitrogen - based, red phosphorus, and their compounds. Inorganic flame retardants mainly include antimony trioxide, magnesium hydroxide, aluminum hydroxide, and silicon - based flame - retardant systems.

For PP flame - retardant sheets, bromine - based or phosphorus - nitrogen - based flame retardants are commonly used. The addition amount of bromine - based flame retardants is relatively high, which has a significant impact on the impact resistance and tensile properties of the sheets. In contrast, the phosphorus - nitrogen - based flame retardants have a lower addition amount and relatively less impact on the properties of the sheets, being able to meet the requirements of customers.