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Novel expansion-type charring agent for flame-retardant polyolefine material and synthesis method thereof

A synthesis method and an intumescent technology, which are applied in the field of novel intumescent carbon-forming agents and their synthesis, can solve the problems of large usage of organic solvents, discontinuous reaction process, complicated preparation process, etc., and achieve good thermal stability and reaction process. The effect of continuous, simple preparation process

Inactive Publication Date: 2011-08-24
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the above problems, the object of the present invention is to solve the discontinuous reaction process, complex preparation process, long reaction time, large amount of organic solvent used, low yield, difficult post-treatment, and char formation of the product in the prior art. In view of the disadvantages of low content and poor thermal stability, a new type of macromolecular triazine-type intumescent char-forming agent is provided

Method used

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  • Novel expansion-type charring agent for flame-retardant polyolefine material and synthesis method thereof
  • Novel expansion-type charring agent for flame-retardant polyolefine material and synthesis method thereof
  • Novel expansion-type charring agent for flame-retardant polyolefine material and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In a 1000ml four-necked flask equipped with a reflux condenser, a thermometer, an agitator, and a constant pressure dropping funnel, add 92.25g (0.5mol) of cyanuric chloride, then add 200ml of acetone, and place the four-necked flask in an ice bath , stir well to make the cyanuric chloride disperse evenly, add 46.56g (0.5mol) aniline dropwise to the four-necked bottle, dissolve 20g (0.5mol) sodium hydroxide in 50ml distilled water, add dropwise with a constant pressure funnel, and control the pH In 5-7, the reaction temperature is controlled at 0-10° C., and the reaction time is 1-2 hours to obtain a monosubstituted cyanuric chloride.

[0035] After the aniline is added dropwise, add 15.03g (0.25mol) of ethylenediamine dropwise to the four-necked bottle with a constant pressure funnel, dissolve 20g (0.5mol) of sodium hydroxide in 50ml of distilled water, and add dropwise to the four-necked bottle with a constant pressure funnel. In the four-necked bottle, the temperatur...

Embodiment 2

[0038] In the 500ml four-necked bottle equipped with reflux condenser, thermometer, stirrer, constant pressure dropping funnel, add 46.13g (0.25mol) cyanuric chloride, then add 80ml acetone and 20ml distilled water, place the four-necked bottle on In an ice bath, stir well to disperse cyanuric chloride evenly, add dropwise 23.53g (0.25mol) of phenol into the four-necked bottle, dissolve 10g (0.25mol) of sodium hydroxide in 25ml of distilled water, and add dropwise with a constant pressure funnel , the pH is controlled at 5-7, the reaction temperature is controlled at 0-10°C, and the reaction time is 1-3 hours to obtain a monosubstituted cyanuric chloride.

[0039] After the aniline is added dropwise, add 7.51g (0.125mol) of ethylenediamine dropwise to the four-necked bottle with a constant pressure funnel, dissolve 10g (0.25mol) of sodium hydroxide in 20ml of distilled water, and add dropwise to the In the four-necked bottle, the temperature is raised to 40-60°C, the dropping ...

Embodiment 3

[0042] In a 1000ml four-necked flask equipped with a reflux condenser, a thermometer, an agitator, and a constant pressure dropping funnel, add 92.25g (0.5mol) of cyanuric chloride, then add 200ml of acetone, and place the four-necked flask in an ice bath , stir well to make the cyanuric chloride disperse evenly, add 46.56g (0.5mol) aniline dropwise to the four-necked bottle, dissolve 20g (0.5mol) sodium hydroxide in 50ml distilled water, add dropwise with a constant pressure funnel, and control the pH In 5-7, the reaction temperature is controlled at 0-5° C., and the reaction time is 1-2 hours to obtain a monosubstituted cyanuric chloride.

[0043] After the aniline has been added dropwise, add 22.04g (0.25mol) of 1,4-butanediamine dropwise into the four-necked flask with a constant pressure funnel, dissolve 20g (0.5mol) of sodium hydroxide in 50ml of distilled water, and Add the funnel dropwise into the four-necked bottle, raise the temperature to 40-60°C, control the drop r...

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Abstract

The invention discloses a expansion-type charring agent for a flame-retardant polyolefine material and a synthesis method thereof. The synthesis method comprises the following steps: by using cyanuric chloride as an initial raw material, dropwisely adding amine containing benzene ring, phenol or thiophenol and an acid binding agent into an ice bath to obtain a monosubstituted compound; dropwisely adding aliphatic diamine or aliphatic dibasic alcohol and an acid binding agent, heating to 40-60 DEG C to react, thereby obtaining a disubstituted compound; and finally, dropwisely adding the aliphatic diamine or aliphatic dibasic alcohol and the acid binding agent, heating to 80-110 DEG C, refluxing with a condenser, cooling, washing, and drying to obtain the expansion-type charring agent containing benzene ring, triazine ring and diamino or dialkoxy group. The reaction process adopts a one-pot method, and thus, the invention has the advantages of simple technique, short reaction time and environmental protection in the preparation process; the product has the advantages of high thermal stability, favorable charring effect, low water absorptivity and favorable compatibility with alkene polymers; and after being compounded with ammonium polyphosphate (APP), the product is applicable to polyolefin materials, and has favorable flame-retardant effect.

Description

technical field [0001] The invention belongs to the technical field of environment-friendly halogen-free flame-retardant products, in particular, the invention relates to a novel intumescent char-forming agent for flame-retardant polyolefin materials containing a triazine structure and a benzene ring structure and a synthesis method thereof . Background technique [0002] The wide application of organic polymer materials has brought great convenience to people's production and life. However, since most organic polymer materials are flammable materials, their use in many occasions is greatly limited. Therefore, flame retardants have become one of the important additives for the application of polymer materials. [0003] Traditional high-efficiency flame retardants generally contain halogens, especially bromine. When such flame retardants are compounded with antimony trioxide, they have a good flame-retardant effect on polymer materials. However, such flame retardants will r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08G65/34C08L23/00C08L79/04C08L71/08
Inventor 冯才敏张艺刘四委池振国许家瑞
Owner SUN YAT SEN UNIV
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