Flame retardation catalyst and supported flame retardation catalyst composed of same

An intumescent flame retardant and catalyst technology, which is applied in the field of flame retardant synergists, can solve problems such as deterioration of mechanical properties of materials, and achieve the effects of good mechanical properties, improved efficiency, and improved char-forming flame retardant efficiency.

Active Publication Date: 2013-12-11
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the intumescent flame retardant polymer/clay composite material reaches the UL94V-0 level, it still needs to add

Method used

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  • Flame retardation catalyst and supported flame retardation catalyst composed of same
  • Flame retardation catalyst and supported flame retardation catalyst composed of same
  • Flame retardation catalyst and supported flame retardation catalyst composed of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Disperse 1kg of natural montmorillonite in 10kg of deionized water to obtain a clay suspension; then disperse 10g of 1-butyl-3-methylimidazolium phosphomolybdate in 100g of ethanol to prepare a catalyst solution; then the dispersed The clay suspension is mixed with the catalyst solution, soaked for 6 hours, the solvent is distilled off, and dried to obtain a supported flame-retardant catalyst with a catalyst loading of 1 wt% of natural montmorillonite.

Embodiment 2

[0117] Disperse 100g of sodium montmorillonite in 1Kg of deionized water to obtain a clay suspension; then disperse 5g of didodecyldimethyl quaternary ammonium germanium tungstate in 50g of ethanol to prepare a catalyst solution; then disperse The good clay suspension is mixed with the catalyst solution, soaked for 18 hours, the solvent is distilled off, and dried to obtain a supported flame-retardant catalyst with a catalyst loading of 5 wt% of sodium-based montmorillonite.

Embodiment 3

[0119] The didodecanyl dimethyl quaternary ammonium germanium tungstate in embodiment 2 is replaced with 1-butyl-3-methylimidazole phosphomolybdate, and other experimental conditions are the same as in embodiment 2, and 1- Butyl-3-methylimidazolium phosphomolybdate is a supported flame-retardant catalyst with a loading capacity of 5 wt% of sodium montmorillonite.

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Abstract

The invention discloses a flame retardation catalyst and a supported flame retardation catalyst composed of same. The flame retardation catalyst has a structural formula of (A)nB, wherein A<+> is an imidazoliumcation, a quaternary ammonium cation, a quaternary phosphoniumcation, a pyrrolidoniumcation, a pyrazoliumcation or a pyridyliumcation, and B<n-> is a polyoxometallate anion. The supported flame retardation catalyst is composed of the flame retardation catalyst and clay as a supported, and the load capacity of the flame retardation catalyst is 1-50 wt% of clay. The supported flame retardation catalyst has good compatibility with polymer matrixes, helps to improve char yield and flame retardation performance of a flame retardation polymer system, and has the advantages of good thermostability and migration resistance, being friendly to environment and the like. By employing clay to support the flame retardation catalyst, the flame retardation catalyst can be uniformly dispersed in the polymer, and the char yield is improved. By employing an immersion method and without complex reaction steps, the preparation method is economical, simple, low in cost and easy to popularize.

Description

technical field [0001] The invention belongs to the field of flame retardant synergists, and in particular relates to a flame retardant catalyst capable of improving the charring quality and rate of an intumescent flame retardant and improving the efficiency of the intumescent flame retardant and a loaded flame retardant catalyst composed of the same. Background technique [0002] Because of its light weight, easy processing, and corrosion resistance, polymer materials have become indispensable materials in various fields of national defense construction and national economy. However, most polymer materials are flammable and combustible materials, and the fires caused by the ignition of polymer materials cause heavy casualties and property losses every year. How to improve the flame retardant properties of polymer materials has become a worldwide research hotspot, and the current main direction is to add flame retardants to prevent flames. However, when a certain flame reta...

Claims

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Application Information

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IPC IPC(8): C08K5/3445C08K5/19C08K5/50C08K5/3415C08K5/3432C08K13/04C08K7/22C08K7/24C08K3/32C08K5/3492C08K5/053C08K5/06C08K13/06C08K9/12C08K3/34C08L23/12C08L23/06C08L23/08
CPCY02P20/52
Inventor 李娟陈胜交朱荧科郭子斌
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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