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Triazine carbonific containing aromatic chain structure and preparation method

A technology of triazine char-forming agent and chain structure, which is applied in the direction of fire-resistant coatings, etc., can solve the problems of large amount of organic solvent, complicated preparation process, and long reaction time, and achieve short reaction time, simple preparation process, and simple post-treatment method Effect

Inactive Publication Date: 2009-11-25
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

These patented technologies and synthetic methods have the following problems to varying degrees: complex preparation process, long reaction time, large amount of organic solvent, low yield, and difficult post-processing
The thermal stability, char formation and flame retardant effect of the product need to be further improved

Method used

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  • Triazine carbonific containing aromatic chain structure and preparation method
  • Triazine carbonific containing aromatic chain structure and preparation method
  • Triazine carbonific containing aromatic chain structure and preparation method

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: Under the protection of high-purity nitrogen, 1.84g cyanuric chloride is put into the reactor, adds 50ml N in the reaction vessel, N-dimethylacetamide, stirs 10-30 minute and makes cyanuric chloride The cyanide is evenly dispersed. Add 1.90ml N,N-diisopropylethylamine and 0.95ml aniline at 0-20℃. After reacting for 4 hours, add 1.90ml N,N-diisopropylethylamine to the reaction vessel successively. Ethylamine and 0.54 g p-phenylenediamine. Raise the reaction temperature to 45° C., stir and react for 4 hours, then add 1.90 ml of N,N-diisopropylethylamine and 0.54 g of p-phenylenediamine to the mixed solution in sequence. Raise the reaction temperature to 110°C, stir and react for 8-10 hours, then stop the reaction, cool, precipitate the product with water, filter with suction, wash with a large amount of water, dry in vacuum at 80°C for 48 hours, and obtain a three-dimensional aromatic chain structure Oxyzine macromolecule flame retardant. The yield is abov...

Embodiment 2

[0033] Embodiment 2: Under the protection of high-purity nitrogen, 1.84g cyanuric chloride is put into the reactor, and 50ml N, N-dimethylacetamide is added in the reaction vessel, and stirred for 10-30 minutes to make the cyanuric chloride The cyanide is evenly dispersed. Add 1.90ml N,N-diisopropylethylamine and 0.95ml aniline at 0-20℃. After reacting for 4 hours, add 1.90ml N,N-diisopropylethylamine to the reaction vessel successively. Ethylamine and 0.99 g of diaminodiphenylmethane. Raise the reaction temperature to 45° C., stir and react for 4 hours, then add 1.90 ml of N,N-diisopropylethylamine and 0.99 g of diaminodiphenylmethane to the mixed solution in sequence. Raise the reaction temperature to 110°C, stir and react for 8-10 hours, then stop the reaction, cool, precipitate the product with water, filter with suction, wash with a large amount of water, dry in vacuum at 80°C for 48 hours, and obtain a three-dimensional aromatic chain structure The oxazine macromolecule...

Embodiment 3

[0034] Embodiment 3: under the protection of high-purity nitrogen, put 1.84g cyanuric chloride into the reactor, add 50ml N in the reaction vessel, N-dimethylacetamide, stir 10-30 minute to make cyanuric chloride The cyanide is evenly dispersed. Add 1.38g of anhydrous potassium carbonate and 1.01g of diaminodiphenyl ether at 0-10°C. After reacting for 4 hours, add 1.38g of anhydrous potassium carbonate and 1.00g of diaminodiphenyl ether to the reaction vessel in turn. phenyl ether. Raise the reaction temperature to 55° C., stir and react for 4 hours, then add 1.38 g of anhydrous potassium carbonate and 1.00 g of diaminodiphenyl ether to the mixed solution in sequence. Raise the reaction temperature to 110°C, stir and react for 8-10 hours, then stop the reaction, cool, precipitate the product with water, filter with suction, wash with a large amount of water, dry in vacuum at 80°C for 48 hours, and obtain a three-dimensional aromatic chain structure The oxazine macromolecule f...

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Abstract

A triazine carbonific containing aromatic chain structure, the carbonific is obtained by aromatic binary compound and monosubstituted cyanuric chloride with structural general formula being NH2-Ar-NH2, HO-Ar-OH or HS-Ar-SH under catalyst action. The invention further claims a method of preparing the triazine carbonific containing aromatic chain structure. Compared with the prior art, the invention has the advantages that: the triazine halogen-free flame retardant obtained by the invention has high thermal stability, high char rate under high temperature; the reaction process is one kettle way continuous reaction, and the preparation process is simple, the intermediate does not need to be processed; the post process method is simple, and the reaction time is short, the yield is high; the invention can effectively save energy consumption, improve the production efficiency and reduce the production cost.

Description

technical field [0001] The invention relates to a char-forming agent, in particular to a triazine char-forming agent containing an aromatic chain structure, and also relates to a preparation method of the char-forming agent. It belongs to the technical field of development of environment-friendly halogen-free flame retardants. Background technique [0002] Intumescent flame retardant is one of the types of flame retardants widely used in recent years. It overcomes the fact that halogenated flame retardants are easy to emit irritating and corrosive gases and smoke when burning, pollute the environment, and endanger human health. Corrosion of equipment and other shortcomings, is a very promising green and environmentally friendly flame retardant. Intumescent flame retardants generally consist of three basic components: acid source, carbon source, and gas source. When burning, the "three sources" can be effectively matched to form a non-combustible carbon foam layer with a fl...

Claims

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Application Information

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IPC IPC(8): C09K21/14C08G73/06
Inventor 陶慷李娟柯晨皓方科益范欣愉顾群
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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