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A kind of halogen-free intumescent flame retardant containing ketone cyanuric acid structure and its synthesis method

A technology of intumescent flame retardant and cyanuric acid, which is applied in the fields of compounds, chemical instruments and methods, organic chemistry, etc. of Group 5/15 elements of the periodic table. The problems of complicated preparation steps of the burning agent, etc., can achieve the effect of high phosphorus and nitrogen content, reducing the loss of mechanical properties, and high flame retardant performance.

Active Publication Date: 2018-01-16
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation steps of the flame retardant are cumbersome and consume a lot of energy, and its molecular structure may have side effects on the mechanical properties of the polymer.

Method used

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  • A kind of halogen-free intumescent flame retardant containing ketone cyanuric acid structure and its synthesis method
  • A kind of halogen-free intumescent flame retardant containing ketone cyanuric acid structure and its synthesis method
  • A kind of halogen-free intumescent flame retardant containing ketone cyanuric acid structure and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Dissolve 2.9727g triglycidyl isocyanurate in 30ml N,N-dimethylformamide into a 50ml three-neck flask, then dissolve 1.38g diethyl phosphite in 5ml N,N-dimethylformamide and add To the above-mentioned three-necked flask, under nitrogen protection, magnetic stirring and condensing and reflux, the temperature was raised to 150° C., and the reaction was carried out for 6 hours. Then concentrated by rotary evaporation and precipitated with dichloromethane to obtain the crude product TGIC-DEPP. The crude product was centrifuged and washed three times with dichloromethane, and finally the product TGIC-DEPP was obtained.

[0023] pass figure 1 Intumescent flame retardant TGIC-DEPP 1 H NMR spectrum and raw materials figure 2 It can be seen from the comparison figure 1 Intumescent flame retardant TGIC-DEPP 1 In the H NMR nuclear magnetic spectrum, the proton peaks of diethyl phosphite P-H at 7.66ppm and 5.93ppm disappeared, and -OCH in diethyl phosphite appeared 2 CH 3 Th...

Embodiment 2

[0026] Dissolve 11.8908g triglycidyl isocyanurate in 90ml dioxane and add it to a 150ml three-necked flask, then dissolve 16.56g diethyl phosphite in 20ml dioxane and add it to the above-mentioned three-necked flask. Under sub-stirring and condensing and reflux, the temperature was raised to 105°C, and the reaction was carried out for 15 hours. Then concentrated by rotary evaporation and precipitated with dichloromethane to obtain the crude product TGIC-DEPP. The crude product was centrifuged and washed three times with dichloromethane, and finally the product TGIC-DEPP was obtained.

Embodiment 3

[0028] Dissolve 8.9181g triglycidyl isocyanurate in 75ml N,N-dimethylformamide and add to a 150ml three-neck flask, then dissolve 4.14g diethyl phosphite in 15ml N,N-dimethylformamide and add To the above-mentioned three-necked flask, under nitrogen protection, magnetic stirring and reflux, the temperature was raised to 120° C., and the reaction was carried out for 10 h. Then concentrated by rotary evaporation and precipitated with dichloromethane to obtain the crude product TGIC-DEPP. The crude product was centrifuged and washed three times with dichloromethane, and finally the product TGIC-DEPP was obtained.

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Abstract

The invention relates to an intumescent flame retardant compound and provides a halogen-free and ketone-containing intumescent flame retardant adopting a cyanuric acid structure and a synthetic method. The intumescent flame retardant is simple to prepare, high in phosphorus and nitrogen content, large in intumescent multiple and high in flame retardant efficiency, does not affect mechanical properties of polymers and can be applied to flame retardant modification of various polymers. The preparation method comprises steps as follows: triglycidyl isocyanurate and a solvent are sequentially added to a container provided with a stirring device and subjected to condensation reflux and nitrogen protection, after dissolution, diethyl phosphate is added, after a temperature rise reaction, most of the solvent is removed through reduced pressure distillation, then precipitates are filtered, and the halogen-free and ketone-containing intumescent flame retardant adopting the cyanuric acid structure is obtained through centrifugal washing. The halogen-free and ketone-containing intumescent flame retardant adopting the cyanuric acid structure is a white solid powdered product.

Description

technical field [0001] The invention relates to an intumescent flame retardant compound, in particular to an intumescent flame retardant with a halogen-free ketone-containing cyanuric acid structure and a synthesis method. Background technique [0002] With the rapid development of polymer materials, polymer materials are widely used in various fields, but polymer materials are flammable and combustible substances, and there is a danger of fire in various fields. When polymers burn, it is easy to cause harm to people's lives. threats and pollution of the environment. Therefore, people pay more and more attention to the prevention of fire, so it is very meaningful for the flame retardant and fire prevention of polymers. [0003] Polymer flame retardants can be divided into halogen flame retardants, phosphorus flame retardants, nitrogen flame retardants, silicon-containing flame retardants and inorganic flame retardants. Its flame retardant technology mainly includes microca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/6521C08K5/5353C08L23/12C08L67/00C08L63/00
CPCC07F9/6521C08K5/5353C08L2201/02C08L23/12C08L67/00C08L63/00
Inventor 戴李宗邵志恒李远源陈国荣袁丛辉许一婷曾碧榕罗伟昂
Owner XIAMEN UNIV
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