Zinc-containing Anderson type heteropolyacid flame-retardant smoke suppressant and preparation method thereof

Abstract

The invention discloses a zinc-containing Anderson type heteropolyacid flame-retardant smoke suppressant and a preparation method thereof. The zinc-containing Anderson type heteropolyacid flame-retardant smoke suppressant is prepared by reacting raw materials including succinic anhydride, a polymer PPEs, O-benzotriazole-tetramethylurea hexafluorophosphate, [N (C4H9) 4] 2 [H2ZnMo6O18 {(OCH2) 3CNH2} 2] and triethylamine. The preparation method comprises the following steps: in the presence of succinic anhydride and a dehydrating agent, carrying out ring-opening polymerization reaction on bilateral asymmetrically modified Anerson type polyoxometallate of which the central heteroatom is Zn and monofunctional PPES to obtain a novel zinc-containing Anderson type heteropolyacid flame-retardant smoke suppressant; the difference of POMs and a macromolecular chain in the aspects of charge effect, polarity effect and volume effect is utilized to drive self-aggregation of POMs hybrid molecules in an epoxy matrix to form a nanoscale microscopic phase state or topological structure, so that the purpose of nano synergy is achieved, the comprehensive properties such as flame retardance, mechanical property, heat resistance and dielectric property of the epoxy resin are expected to be improved, and the application prospect is wide. And the special requirements in the high-end manufacturing field of electronic packaging materials and the like are met.

Description

technical field

[0001] The invention relates to the field of organic-inorganic hybrid flame retardants, in particular to a zinc-containing Anderson type heteropoly acid flame retardant and smoke suppressant and a preparation method thereof. Background technique

[0002] Epoxy resin (EP), as an important thermosetting polymer material, has a wide range of applications and is often used in civil construction due to its advantages of good processability, high reactivity, good mechanical properties, and good electrical insulation. , electronic appliances, aerospace, automotive machinery and so on. However, epoxy resin is flammable, and will produce a large amount of black smoke during the combustion process, which will cause great harm to human life and property, which greatly limits its high requirements for flame retardant standards in electronics, electricity, etc. applications in the field. Therefore, improving the flame retardancy of epoxy resins has become an urgent prob...

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