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Intumescent flame retardant containing polyhydroxy groups and two triazine rings and preparation method

The technology of an intumescent flame retardant and a hydroxybistriazine ring is applied in the field of intumescent flame retardants containing a polyhydroxybistriazine ring and its preparation, and can solve the problems of large quantities, great environmental and human hazards, etc.

Inactive Publication Date: 2016-09-28
NANJING FORESTRY UNIV
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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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  • Intumescent flame retardant containing polyhydroxy groups and two triazine rings and preparation method
  • Intumescent flame retardant containing polyhydroxy groups and two triazine rings and preparation method
  • Intumescent flame retardant containing polyhydroxy groups and two triazine rings and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 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, and then add 10.5g of diethanolamine and NaHCO dropwise evenly and slowly under the condition of 0°C while stirring. 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 3Dissolve 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 acetone, then continue to heat up to 90°C, and slowly add 5.4g of p-phenylenediamine and ...

Embodiment 2

[0038] 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 the cyanuric chloride evenly, and then add 10.5g of diethanolamine and NaHCO dropwise evenly and slowly under the condition of -5°C while stirring. 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, and then evenly and slowly add 10.5g of diethanolamine and NaHCO 3 Solution (8.4gNaHCO 3 Dissolve in 100ml distilled water), keep the temperature at 50°C, after the dropwise addition is complete, react under this condition for 6 hours. Then heat up to 60°C, distill off acetone, then continue to heat up to 100°C, evenly and slowly add 6.8g of p-xylylenediami...

Embodiment 3

[0042] 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 5℃, add 10.5g diethanolamine and NaHCO dropwise evenly while stirring 3 solution (8.4g NaHCO 3 Dissolved in 100ml distilled water), after the dropwise addition was completed, reacted at 5°C for 3 hours. Then raise the temperature to 45°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 45°C, after the dropwise addition is complete, react under this condition for 7 hours. Then the temperature was raised to 60°C, the acetone was distilled off, and then the temperature was continued to rise to 95°C, and 6.15g of 2,4-diaminotoluene and ...

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Abstract

The invention discloses a polyhydroxy bistriazine ring-containing expandable flame retardant and a preparation method thereof. The flame retardant contains multiple hydroxyl groups, which makes the carbon layer in the flame retardant more compact and improves the flame retardant effect; adding The benzene ring connects two triazine rings, increases the ratio of N and C, and improves the quality of carbon layer formation. The polyhydroxy bis-triazine ring-containing expandable flame retardant of the present invention is a reaction product in which cyanuric chloride is disubstituted with diethanolamine and benzene ring diamine is respectively substituted, and two triazine rings are connected.

Description

technical field [0001] The invention relates to a flame retardant and a preparation method, more specifically to a polyhydroxy bistriazine ring-containing 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 compound forfire ...

Claims

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Application Information

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IPC IPC(8): C08K5/3492C07D251/70C08K3/32C08L23/12
CPCC08K5/34922C07D251/70C08K3/32C08K2003/323
Inventor 罗振扬万元俊赵昱贺兰晓雨吴爽
Owner NANJING FORESTRY UNIV
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