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Phosphorus-containing macromolecule intumescent flame retardant char forming agent as well as preparation method thereof and intumescent flame retardant formed by char forming agent

An intumescent flame retardant and intumescent flame retardant technology, applied in the field of intumescent flame retardants, can solve the problems of insufficient char-forming ability of macromolecular intumescent flame retardant charring agents, reduce moisture absorption and improve flame retardant efficiency , the effect of improving the ability to form carbon

Active Publication Date: 2013-10-02
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical problem of insufficient charcoal-forming ability of polymeric triazine series macromolecular expansion flame-retardant char-forming agent, and provides a kind of flame-retardant element integrating phosphorus, nitrogen and carbon, and has good thermal stability and composition. Carbon-based phosphorus-containing macromolecular expansion flame-retardant char-forming agent

Method used

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  • Phosphorus-containing macromolecule intumescent flame retardant char forming agent as well as preparation method thereof and intumescent flame retardant formed by char forming agent
  • Phosphorus-containing macromolecule intumescent flame retardant char forming agent as well as preparation method thereof and intumescent flame retardant formed by char forming agent
  • Phosphorus-containing macromolecule intumescent flame retardant char forming agent as well as preparation method thereof and intumescent flame retardant formed by char forming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Dissolve 4 mol of ethylenediamine in 500 mL of chloroform, then add dropwise 1.0 mol of phenylphosphonic dichloride dissolved in 100 mL of chloroform while stirring, and control the temperature of the solution between 0-5°C; After finishing the phenylphosphonic dichloride solution, react for 6 hours, then raise the temperature to 40° C. and react for 1 hour, and filter to remove by-product ethylenediamine hydrochloride to obtain a chloroform solution of phosphorus-containing diamine monomer.

[0044] Disperse 1.0 mol of cyanuric chloride evenly in 500 mL of chloroform, then keep the temperature at 0-5°C, add dropwise 0.5 mol of phosphorus-containing diamine monomer in chloroform and dissolve in 100 mL of deionized water while stirring 0.5 mol of potassium carbonate, the two should be added dropwise at the same time, and the pH value of the reaction system is kept at 5~7 by controlling the drop rate of the potassium carbonate solution during the dropping process. 3 hours...

Embodiment 2

[0049] First dissolve 4 mol of diethylenetriamine in 500 mL of chloroform, then add dropwise 1.0 mol of phenylphosphonic dichloride dissolved in 100 mL of chloroform while stirring, and control the solution temperature between 0-5°C; After adding the phenylphosphonic acid dichloride solution, react for 6 hours, then raise the temperature to 40° C. and react for 1 hour, filter to remove by-product diethylenetriamine hydrochloride, and obtain a chloroform solution of phosphorus-containing diamine monomer.

[0050] Disperse 1.0 mol of cyanuric chloride evenly in 500 mL of chloroform, then keep the temperature at 0-5°C, add dropwise 0.6 mol of phosphorus-containing diamine monomer in chloroform and dissolve in 100 mL of deionized water while stirring 1.0 mol of sodium hydroxide, the two should be added dropwise at the same time, and the pH value of the reaction system should be kept at 5~7 by controlling the drop rate of the sodium hydroxide solution during the dropwise addition pr...

Embodiment 3

[0052] Firstly dissolve 4 mol of butanediamine in 500 mL of toluene, then add dropwise 1.0 mol of phenyl dichlorophosphate dissolved in 100 mL of toluene while stirring, and control the temperature of the solution between 0-5°C; The phenyl dichlorophosphate solution was reacted for 6 hours, then heated to 40°C for 1 hour, and the by-product butanediamine hydrochloride was removed by filtration to obtain a toluene solution of phosphorus-containing diamine monomer.

[0053] Disperse 1.0 mol cyanuric chloride evenly in 500 mL toluene, then keep the temperature at 0-5°C, add dropwise 0.7 mol phosphorus-containing diamine monomer toluene solution and dissolve in 100 mL deionized water while stirring 1.0 mol of potassium hydroxide, the two should be added dropwise at the same time, and the pH value of the reaction system should be kept at 5~7 by controlling the drop rate of the potassium hydroxide solution during the dropwise addition process. After the dropwise addition, keep the te...

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Abstract

The invention discloses a phosphorus-containing macromolecule intumescent flame retardant char forming agent. The structural general formula of the phosphorus-containing macromolecule intumescent flame retardant char forming agent is as shown in descriptions, wherein in the formula, X is -NH-R-NH-, Y is -NH-R1-OH or -NH-R1-NH2, Z is phenyl, phenoxy, methoxy or anilino group, m is in the range from 1-25, n is the range from 1-25, and m+2 is greater than or equal to 2. The invention discloses a preparation method of the phosphorus-containing macromolecule intumescent flame retardant char forming agent and an intumescent flame retardant formed by the char forming agent, an acid source and a flame retardant synergist. The char forming agent provided by the invention has good heat stability and char forming property as well as excellent water resistance and mobility resistance in a polymer system; the preparation method of the char forming agent is simple and practicable, easy to control and convenient for the realization of industrial production.

Description

technical field [0001] The invention belongs to the technical field of phosphorus-containing char-forming agent and its preparation method and intumescent flame retardant composed of the same, and specifically relates to a phosphorus-containing macromolecular expansion flame-retardant char-forming agent containing a triazine ring and a phosphoramide structure and a preparation method thereof And the intumescent flame retardant composed of it. Background technique [0002] As one of the five general-purpose plastics, polypropylene has the advantages of low density, corrosion resistance, high strength, good rigidity and transparency, and good molding processability. It is used in many fields such as building materials, electrical cables, packaging materials, automobiles, and textiles more and more widely. However, polypropylene is flammable and presents a fire risk in many applications. It is of great practical significance to modify flame-retardant polypropylene products to...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08K5/5399C08K3/32C08K5/3492C08L23/12C07F9/6558C08G73/06
Inventor 王玉忠许召赞黄鉴前陈明军关雅慧邵珠宝李良杰吕强肖守松
Owner SICHUAN UNIV
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