Halogen-free flame retardant and polymer material containing same

Abstract

The invention discloses a halogen-free flame retardant and a polymer material containing the same. The halogen-free flame retardant contains a compound A and a compound B, wherein the compound A is selected from at least one of non-acid metal salts formed by an acid radical anion and a metal cation, wherein the acid radical anion is formed by at least one hydroxyl in a compound C by losing of a hydrogen atom; the compound C is selected from at least one of the compounds having the chemical formula shown in formula (I); the compound B is selected from at least one of the compounds having the chemical formula shown in formula (II) and the compounds having the chemical formula shown in formula (III). The halogen-free flame retardant overcomes defects of existing alkyl phosphonates as flame retardants, and particularly solves the problems of polymer material degradation and yellowing caused by the alkyl phosphonates in the prior art.

Description

technical field

[0001] The application relates to a halogen-free flame retardant and a polymer material containing the flame retardant, belonging to the field of preparation of flame retardant polymer materials. Background technique

[0002] Flame-retardant polymer materials, especially glass fiber reinforced polyamide, polyester PBT and high-temperature nylon, are widely used in the manufacture of electrical sockets, connectors, relays and other small electronic components in the electronics and electrical industry. Traditionally, the flame retardancy of polymer materials is realized by brominated flame retardants, but brominated flame retardants can produce strong carcinogenic dioxins when burned, and the hydrogen bromide produced at the same time can cause secondary pollution. Therefore, the use of brominated flame retardants has been gradually restricted in recent years, and the flame retardancy of polymer materials has thus turned to halogen-free flame retardants. [0...

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