Aqueous fire-retardant coating special fire-retardant and its preparation method

By preparing a phosphorus-nitrogen synergistic flame retardant system of melamine cyanurate microencapsulated hypophosphite and modifying it with hyperbranched silane, the problems of low flame retardant efficiency and poor compatibility of waterborne polyurethane coatings were solved, achieving efficient and environmentally friendly flame retardant effect and good dispersibility.

CN117659760BActive Publication Date: 2026-03-03JINAN TAIXING FINE CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-08
Publication Date
2026-03-03

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Abstract

The application discloses a water-based fire-retardant coating special fire-retardant agent and a preparation method thereof. The application firstly prepares a melamine cyanurate microencapsulated hypophosphite phosphorus-nitrogen synergistic fire-retardant system through chemical bonds and hydrogen bonds, then carries out hyperbranched silane modification, and finally forms a firm dendritic structure on the surface of the hyperbranched phosphorus-nitrogen synergistic fire-retardant system through post-chain extension crosslinking in a water-based coating polycondensation reaction and emulsification reaction, so as to obtain the water-based fire-retardant coating special fire-retardant agent. The fire-retardant agent has good fire-retardant effect when applied in the water-based coating, low system viscosity, good compatibility with a matrix, good dispersibility and good migration and precipitation resistance, and the hyperbranched silane modification has a certain crosslinking degree, so that the contact angle and the mechanical properties of the matrix are improved.
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Patent Citations

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