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A kind of phosphorus nitrogen flame retardant containing synergist

A technology of flame retardant and synergist, applied in the field of preparation of flame retardant

Active Publication Date: 2018-09-11
上海普信高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There is still room for improvement in the flame retardant effect of phosphorus-nitrogen flame retardants in the existing technology, and it is necessary to continue to develop and create new phosphorus-nitrogen flame retardants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of flame retardant synergist:

[0018] Add 100Kg of dibutyltin dilaurate, 0.8Kg of 1-hexyl-3-methylimidazolium bromide, 0.3Kg of 3-(trifluoromethyl)pyridine into a 1000L reactor, and pre-mix at 5°C for 25h to obtain Combustion synergist.

[0019] (2) Synthesis reaction:

[0020] Add 100Kg of phosphoric acid, 50Kg of pentaerythritol, 110Kg of melamine, 1Kg of 2-hydroxy-4-(3-triethoxysilane propoxy) benzophenone, and 3Kg of flame retardant synergist in a 1000L reactor. After 2 hours of esterification reaction, salt was formed at 110°C for 1 hour to obtain the product. Product number M-1.

Embodiment 2

[0022] (1) Preparation of flame retardant synergist:

[0023] Add 100Kg of dibutyltin dilaurate, 0.5Kg of 1-hexyl-3-methylimidazolium bromide, and 0.05Kg of 3-(trifluoromethyl)pyridine into a 1000L reactor, and pre-mix at 0°C for 10 hours to obtain Combustion synergist.

[0024] (2) Synthesis reaction: Add 100Kg of phosphoric acid, 30Kg of pentaerythritol, 70Kg of melamine, 0.5Kg of 2-hydroxy-4-(3-triethoxysilane propoxy) benzophenone, and a flame retardant synergist into a 1000L reactor 1Kg, esterification reaction at 100°C for 1 hour, and salt formation at 100°C for 0.5 hours to obtain the product. Product number M-2.

Embodiment 3

[0026] (1) Preparation of flame retardant synergist:

[0027] Add 100Kg of dibutyltin dilaurate, 1Kg of 1-hexyl-3-methylimidazolium bromide, 0.5Kg of 3-(trifluoromethyl)pyridine into a 1000L reactor, and pre-mix at 10°C for 35 hours to obtain a flame retardant synergist.

[0028] (2) Synthesis reaction: Add 100Kg of phosphoric acid, 70Kg of pentaerythritol, 150Kg of melamine, 2Kg of 2-hydroxy-4-(3-triethoxysilane propoxy)benzophenone, and 5Kg of flame retardant synergist into a 1000L reactor , esterification reaction at 130°C for 4h, salt formation at 120°C for 2h, and the product was obtained. Product number M-3.

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PUM

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Abstract

The invention provides a phosphorus-nitrogen type flame retardant containing a synergist. The phosphorus-nitrogen type flame retardant containing the synergist is obtained by the steps of adding phosphoric acid, pentaerythritol, melamine, 2-hydroxyl-4-(3-triethoxy silane propoxy) benzophenone, and a flame-retardant synergist into a reaction kettle, and performing an esterification reaction and a salt forming reaction.

Description

technical field [0001] The invention relates to a preparation method of a flame retardant, in particular to a phosphorus-nitrogen type flame retardant containing a synergist. Background technique [0002] Flame retardants have a wide range of applications and play a huge role in textile production, building materials, plastic products, medical industry, automobile manufacturing and other industries. Adding phosphorus-nitrogen flame retardants in the polymer production process can effectively improve the combustion resistance of the product. When phosphorus-based flame retardants are burned, a liquid film can be produced to cover the surface of the burning object, which acts as an isolation and hinders combustion. Nitrogen-based flame retardants Incombustible gas is produced during combustion, which can isolate combustibles and flammable gases from contact with oxygen to a certain extent, so as to achieve the purpose of reducing fire intensity and flame retardancy. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/544C08L69/00
CPCC08L2201/02C08K5/5477C08L69/00
Inventor 王荣军吴健泳
Owner 上海普信高分子材料有限公司