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A kind of expandable flame retardant containing polyhydroxyl and phosphorus-based triazine ring and its preparation method

An intumescent flame retardant, polyhydroxy-containing technology, applied in chemical instruments and methods, organic chemistry, compounds of Group 5/15 elements of the periodic table, etc.

Active Publication Date: 2018-09-07
JIANGSU JINGXUE INSULATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of halogen flame retardants is that a large amount of smoke and toxic and corrosive gases are generated during combustion, which is harmful to the environment and human body. Therefore, the application of halogen flame retardants is limited in many fields.

Method used

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  • A kind of expandable flame retardant containing polyhydroxyl and phosphorus-based triazine ring and its preparation method
  • A kind of expandable flame retardant containing polyhydroxyl and phosphorus-based triazine ring and its preparation method
  • A kind of expandable flame retardant containing polyhydroxyl and phosphorus-based triazine ring and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Add 18.45g of cyanuric chloride and 100ml of acetone solution (the volume ratio of acetone and water is 1:1) in the 1L reaction flask equipped with reflux condenser, constant pressure dropping funnel, stirrer and thermometer, fully stir, Make the cyanuric chloride disperse evenly, then under the condition of 0℃, add 18g of 1-oxyphospha-4-hydroxymethyl-2,6,7-trioxabicyclo[2.2. 2] Octane and NaHCO 3 solution (8.4g NaHCO 3 dissolved in 100ml distilled water), after the dropwise addition was completed, the reaction was carried out at 0° C. for 3 hours. Then raise the temperature to 40°C, add 100ml of acetone solution, and then evenly and slowly add 10.5g of diethanolamine and NaHCO 3 solution (8.4g NaHCO 3 Dissolve in 100ml distilled water), keep the temperature at 40°C, after the dropwise addition is complete, react under this condition for 8 hours. Then heat up to 60°C, distill off the acetone, then continue to heat up to 85°C, and evenly and slowly add 13g of diethan...

Embodiment 2

[0040] Add 18.45g of cyanuric chloride and 100ml of acetone solution (the volume ratio of acetone and water is 1:1) in the 1L reaction flask equipped with reflux condenser, constant pressure dropping funnel, stirrer and thermometer, fully stir, Make the cyanuric chloride disperse evenly, then under the condition of 0℃, add 18g of 1-oxyphospha-4-hydroxymethyl-2,6,7-trioxabicyclo[2.2. 2] octane and triethylamine solution (10.1g triethylamine dissolved in 100ml distilled water), after the dropwise addition, react at 0°C for 3 hours. Then raise the temperature to 40°C, add 100ml of acetone solution, then evenly and slowly add 9.1g of 2-hydroxymethylaminoethanol and triethylamine solution (10.1g of triethylamine is dissolved in 100ml of distilled water) dropwise in the reaction flask, Keep the temperature at 40°C, and react under this condition for 8 hours after the dropwise addition is completed. Then heat up to 60°C, distill out acetone, then continue to heat up to 85°C, evenly ...

Embodiment 3

[0044] Add 18.45g of cyanuric chloride and 100ml of acetone solution (the volume ratio of acetone and water is 1:1.5) in the 1L reaction flask equipped with reflux condenser, constant pressure dropping funnel, stirrer and thermometer, fully stir, Disperse cyanuric chloride evenly, and then add 18g of 1-oxyphospha-4-hydroxymethyl-2,6,7-trioxabicyclo[2.2 .2] Octane and NaHCO 3 solution (8.4g NaHCO 3 dissolved in 100ml of distilled water), after the dropwise addition was completed, the reaction was carried out at -5°C for 4 hours. Then raise the temperature to 50°C, add 100ml of acetone solution, then evenly and slowly add 13.7g of 2-phenyldiethanolamine and NaHCO3 solution (8.4g of NaHCO3 dissolved in 100ml of distilled water) dropwise to the reaction flask, keeping the temperature at 50°C , After the dropwise addition was completed, the reaction was carried out under this condition for 6 hours. Then heat up to 60°C, distill off the acetone, then continue to heat up to 100°C,...

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Abstract

The invention discloses an intumescent flame retardant containing polyhydroxy groups and a phosphorous triazine ring and a preparation method. The polyhydroxy groups are added into an intumescent flame retardant, so that a carbon layer formed in the flame retardant is more compact, and the flame-retardant effect is improved; meanwhile, a phosphorous element is added and mainly has a flame-retardant function in a condensed phase, particularly to an oxygen-containing polymer material. The intumescent flame retardant containing polyhydroxy groups and the phosphorous triazine ring is composed of a reactant of cyanuric chloride and disubstituted alcohol amine and a reactant of cyanuric chloride and substituted PEPA.

Description

technical field [0001] The invention relates to a flame retardant and a preparation method, more specifically to a polyhydroxyl-containing, phosphorus-based triazine ring expansion type flame retardant and a preparation method. Background technique [0002] The early flame retardants were mainly halogen flame retardants, which occupied most of the polymer flame retardant market due to their advantages of less dosage, high flame retardant efficiency and wide adaptability. However, the disadvantage of halogen flame retardants is that a large amount of smoke and toxic and corrosive gases are generated during combustion, which is harmful to the environment and human body. Therefore, the application of halogen flame retardants is currently limited in many fields. [0003] The use of intumescent flame retardants in polymer materials is a research hotspot in recent years. G.Camino et al. (Camino, G.Martinasso, C.Costal, L.Thermal degradation of pentaerythritol diphosphate, model c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/527C07F9/6574
CPCC07F9/65748C08K5/527
Inventor 罗振扬赵昱贺万元俊吴爽兰晓雨
Owner JIANGSU JINGXUE INSULATION TECH CO LTD
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