Hexachlorocyclotriphosphonitrile derivative, preparation method and application thereof, polydicyclopentadiene composite material and preparation method thereof

Abstract

The invention relates to a hexachlorocyclotriphosphonitrile derivative, a preparation method and application thereof, a polydicyclopentadiene composite material and a preparation method thereof, and belongs to the technical field of flame retardance. The hexachlorocyclotriphosphonitrile derivative disclosed by the invention has a structure shown in a formula I in the specification. The hexachlorocyclotriphosphonitrile derivative has a structure shown in a formula I, and in the formula I, R is C8-C18 chain alkyl. The C8-C18 chain alkyl introduced into the hexachlorocyclotriphosphonitrile derivative can significantly improve the compatibility of the hexachlorocyclotriphosphonitrile derivative and a polydicyclopentadiene matrix, so that the hexachlorocyclotriphosphonitrile derivative has goodsolubility in dicyclopentadiene. When the hexachlorocyclotriphosphonitrile derivative is used as a polydicyclopentadiene flame retardant, a relatively good flame retardant property can be achieved under a relatively low addition amount, the mechanical property of a polydicyclopentadiene composite material is maintained to a relatively large extent, and meanwhile, migration and precipitation of the flame retardant are reduced, and the flame retardant property of the polydicyclopentadiene composite material is more stable.

Description

technical field [0001] The invention relates to a hexachlorocyclotriphosphazene derivative, a preparation method and application thereof, a polydicyclopentadiene composite material and a preparation method thereof, and belongs to the technical field of flame retardancy. Background technique [0002] Polydicyclopentadiene (PDCPD) is a kind of thermosetting engineering plastics with excellent comprehensive mechanical properties, which has been widely used in transportation, chemical industry, electrical equipment, sports equipment and other fields. However, with the improvement of material safety performance requirements at home and abroad, the flammability of polydicyclopentadiene limits its application. Therefore, it is necessary to add various flame retardants to improve the flame retardancy of polydicyclopentadiene materials. However, polydicyclopentadiene is usually prepared by a two-component catalytic system, which is highly sensitive to water, oxygen, active functiona...

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Problems solved by technology

Hexachlorocyclotriphosphazene has a certain solubility in dicyclopentadiene monomer, and can better improve the flame retardancy of polydicyclopentadiene, but it has poor compatibility with polydicyclopentadiene matrix, making polydicyclopentadiene Significant decline in mechanical properties of dicyclopentadiene flame retardant composites

Chinese patent documents CN104558326A and CN104592301A respectively disclose hexachlorocyclotriphosphazene derivatives with cyclopentadiene groups and norbornene groups as flame retardants for modification of polydicyclopentadiene, which can improve flame retardancy The solubility of the agent while maintaining good mechanical properties, but the preparation of such hexachlorocyclotriphosphazene derivatives is relatively complicated, and the yield is relatively low, which improves the flame-retardant polydicyclopentadiene of hexachlorocyclotriphosphazene derivatives. ene cost

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