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Halogen-free expansion type flame retardant containing macromole triazine charring agent and preparation thereof

A technology of intumescent flame retardants and triazines, which is applied in the field of preparation of macromolecular triazine char-forming agents, can solve the problem of no qualitative change in the flame-retardant effect of flame-retardant polymers and the synthesis of triazine char-forming agents Long time, discontinuous reaction process and other problems, to achieve the effect of continuous synthesis reaction process, short synthesis time and strong water resistance

Active Publication Date: 2009-05-20
SHANGHAI RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although the methods disclosed in the above-mentioned patents and papers have achieved certain effects, the synthesis time of the triazine char-forming agent is long, the reaction process is discontinuous, the stability of the obtained product is poor, and the residual chlorine content is relatively high, and the yield is somewhat low , the flame retardant effect of the flame retardant polymer obtained by the flame retardant has not been qualitatively changed

Method used

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  • Halogen-free expansion type flame retardant containing macromole triazine charring agent and preparation thereof

Examples

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Effect test

Embodiment 1

[0040]Add 46.1g of cyanuric chloride and 20mL of acetone into a 500mL reaction flask equipped with a reflux condenser, a constant pressure dropping funnel, a stirrer and a thermometer, stir well to make the cyanuric chloride disperse evenly, and then Under the condition of 5°C, 15.3g of ethanolamine and NaOH solution (10g of NaOH dissolved in 25mL of distilled water) were evenly added dropwise while stirring. Then raise the temperature to room temperature, and then evenly add 7.5g of ethylenediamine and NaOH solution (10gNaOH dissolved in 25mL of distilled water) dropwise to the reaction flask. After the dropwise addition, raise the reaction temperature to 40-65°C. Stir the reaction for 4-6 hours. Then, under the condition of 40-65°C, continue to evenly add 7.5g of ethylenediamine and NaOH solution (10gNaOH dissolved in 25mL of distilled water) dropwise to the reaction flask, then increase the reaction temperature, first distill and recover acetone, and then add 40mL of distil...

Embodiment 2

[0042] Add 46.1g of cyanuric chloride in a 500mL reaction flask equipped with a reflux condenser, constant pressure dropping funnel, stirrer and thermometer, then add 10mL of acetone and 10mL of distilled water, fully stir to make the cyanuric chloride disperse evenly, Then, under the condition of -5~5℃, 15.3g of ethanolamine and NaOH solution (10gNaOH dissolved in 25mL of distilled water) were evenly added dropwise while stirring. Hour. Then raise the temperature to room temperature, then evenly add 9.25g of 1,3-propylenediamine and NaOH solution (10gNaOH is dissolved in 25mL distilled water) dropwise to the reaction flask, raise the reaction temperature to 40~65°C after the dropwise addition, Under these conditions, the reaction was stirred for 4 to 6 hours. Then, under the condition of 40-65°C, continue to add 9.25g of 1,3-propylenediamine and NaOH solution (10gNaOH dissolved in 25mL of distilled water) evenly dropwise into the reaction flask, then increase the reaction te...

Embodiment 3

[0044] Add 46.1g of cyanuric chloride and 20mL of acetone into a 500mL reaction flask equipped with a reflux condenser, a constant pressure dropping funnel, a stirrer and a thermometer, stir well to make the cyanuric chloride disperse evenly, and then At 5°C, add 22.25g propanolamine and NaOH solution (10g NaOH dissolved in 25mL distilled water) dropwise evenly while stirring, and react at -5-5°C for 1-3 hours after the addition is complete. Then raise the temperature to room temperature, then evenly add 29g hexamethylenediamine and NaOH solution (10g NaOH dissolved in 25mL distilled water) dropwise to the reaction flask, raise the reaction temperature to 40-65°C after the dropwise addition, and stir under this condition React for 4 to 6 hours. Then, under the condition of 40-65°C, continue to add 29g of hexamethylenediamine and NaOH solution (10gNaOH dissolved in 25mL of distilled water) evenly dropwise to the reaction flask, then increase the reaction temperature, first dist...

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Abstract

The invention provides a halogen-free expansion type flame retardant containing large molecular triazine char-forming agent, and a preparation method thereof; the expansion type flame retardant consists of large molecular triazine char-forming agent, epoxy resin cladding ammonium polyphosphate and auxiliary agent; the large molecular triazine char-forming agent is the reaction product of cyanuric chloride and diamine. The preparation of the flame retardant comprises the steps as follows: synthesis of the large molecular triazine char-forming agent, preparation of the flame retardant, and the like. The large molecular triazine char-forming agent has high yield and thermal-stability, continuous reaction process, simple synthesis process, convenient recovery of the solvent; furthermore, the prepared flame retardant has high polymer flame retardance, good mechanical performance, strong humidity resistance, low smoke, no toxin, and the like, and meets the requirement of environmental protection.

Description

technical field [0001] The invention relates to a halogen-free intumescent flame retardant containing a macromolecular triazine char-forming agent and a preparation method thereof, in particular to a preparation method of a macromolecular triazine char-forming agent. Background technique [0002] Intumescent flame retardant (IFR) is a new type of halogen-free flame retardant, because it releases less smoke when burning, the gas released is harmless, and the charcoal layer generated by combustion can effectively prevent polymer droplets. It is especially suitable for the flame retardancy of polymers, so IFR has been paid more and more attention in flame retardancy research at home and abroad. [0003] The intumescent flame retardant system mainly contains three types of components: acid source, carbon source and foam source. In the traditional intumescent flame retardant system, it is generally composed of ammonium polyphosphate (APP), polyol and melamine composite component...

Claims

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Application Information

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IPC IPC(8): C09K21/14C09K21/10
Inventor 郝冬梅刘彦明尹亮陈崇伟
Owner SHANGHAI RES INST OF CHEM IND
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