Efficient flame retardant siloxy fluoro-cyclotriphosphazene and synthesis method thereof

A technology of siloxy fluoro cyclotriphosphazene and fluoro cyclotriphosphazene, which is applied in the field of high-efficiency flame retardant siloxy fluoro cyclotriphosphazene and its synthesis, can solve the problem of not being able to completely prevent battery fire, Combustion or even explosion, can not significantly improve the flash point of lithium-ion battery electrolyte, negative impact on lithium battery performance, etc., to achieve good thermal stability, radiation resistance and weather resistance, easy industrial production, and good reaction controllability.
CN107302108AActive Publication Date: 2017-10-27SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2017-10-27

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Abstract

The invention discloses an efficient flame retardant siloxy fluoro-cyclotriphosphazene and a synthesis method thereof. Fluoro-cyclotriphosphazene is dissolved into an organic solvent, and a siloxy compound and a catalyst are added to perform a reaction for 0.5-72h to replace fluorine atoms by siloxy to obtain siloxy fluoro-cyclotriphosphazene, wherein the siloxy compound is potassium trimethylsilanolate, sodium trimethylsilanolate or lithium trimethylsilanolate. The adopted synthesis method is mild in reaction conditions, high in reaction controllability and capable of realizing industrial production conveniently; and in addition, the technological process is simple, the reactants and the solvent can be recycled, and the product purity and yield are relatively high.
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Description

technical field

[0001] The invention belongs to the field of lithium ion batteries, and in particular relates to a high-efficiency flame retardant siloxyfluorocyclotriphosphazene and a synthesis method thereof. Background technique

[0002] Phosphazene compounds are a class of organic-inorganic hybrid compounds whose skeletons are alternately arranged with nitrogen and phosphorus, and can be divided into polyphosphazenes and cyclic phosphazenes. Among them, chlorocyclotriphosphazene is the most representative compound among cyclophosphazene compounds, because the chlorine atom has a strong reactivity and is easily replaced by various nucleophiles. Therefore, using chlorocyclotriphosphazene as an intermediate, phosphazene derivatives with various organic functional groups can be synthesized.

[0003] At present, the more researched phosphazene derivatives are: hexaanilinocyclotriphosphazene, hexaethylaminocyclotriphosphazene, hexafluorocyclotriphosphazene, hexaisopropoxycycl...

Claims

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