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Reactive flame retardant, preparation method and application thereof

A flame retardant, reactive technology, applied in the field of reactive flame retardants and their preparation, can solve the problems of polluting the environment, declining mechanical properties, affecting human and animal health, etc.

Inactive Publication Date: 2019-06-18
GUANGDONG GUANGSHAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Halogen-containing flame retardant substances will produce non-degradable or refractory toxic substances (such as dioxin-like organic halogen chemicals) when burned, polluting the environment and affecting human and animal health
[0005] Due to the addition of organic phosphate and / or phosphorus nitrogen intumescent flame retardant system in the existing halogen-free flame retardant cable materials, the mechanical properties are greatly reduced, the flame retardant grade is low, and the temperature resistance grade is low.

Method used

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  • Reactive flame retardant, preparation method and application thereof
  • Reactive flame retardant, preparation method and application thereof
  • Reactive flame retardant, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0070] The structure of the reactive flame retardant of the present embodiment is as follows:

[0071]

[0072] The preparation method of this reactive flame retardant is as follows:

[0073] Put 2 mol of phosphorus trichloride and 200 mL of acetone into a three-port 2000 ml glass reactor with a stirring device, pass in nitrogen gas, add 1 mol of disodium hydroquinone dropwise for 30 minutes under stirring, continue to react at room temperature for 60 minutes, and then add 4 mol of ethylene dichloride dropwise Disodium mercaptide, continue to react at room temperature for 120min, add 2L of 1mol / L hydrochloric acid dropwise, wash with water until neutral after reaction, remove impurities and water in the system by physical methods, and distill off the solvent in the system to obtain the reactive barrier compound of the above structure. Fuel agent 206.92g.

[0074] 1 H NMR (CDCl 3 ,500MHz): δ6.98~6.74(m, 4H, Ar-H), 2.54~2.36(m, 16H, CH 2 ), 2.32-2.25 (t, 4H, SH).

Embodiment 2

[0076] The structure of the reactive flame retardant of the present embodiment is as follows:

[0077]

[0078] The preparation method of this reactive flame retardant is as follows:

[0079] Put 2 mol of phosphorus oxychloride and 200 mL of acetone into a three-port 2000 ml glass reactor with a stirring device, pass in nitrogen gas, add 1 mol of p-1,4-cyclohexanediol disodium dropwise for 30 minutes under stirring, continue the reaction at room temperature for 60 minutes, and then Add 4 mol disodium ethanedithiol dropwise, continue the reaction at room temperature for 120 minutes, add 4L 1mol / L hydrochloric acid dropwise, after the reaction, use physical methods to remove impurities and water in the system, and distill off the solvent in the system to obtain the reactivity of the above structure Flame retardant 245.54g.

[0080] 1 H NMR (CDCl 3 ,500MHz): δ4.52~4.46(t, 8H, CH 2 ), 3.95~3.88(m, 2H, CH), 2.54~2.36(m, 8H, CH 2 ), 2.32~2.25(t, 4H, SH), 1.45~1.32(m, 8H, CH ...

Embodiment 3

[0082] The structure of the reactive flame retardant of the present embodiment is as follows:

[0083]

[0084] Put 2mol tert-butyl dichlorophosphoric acid, 200mL ethanol, 1mol 1,4-butylene diamine, 0.1mol sodium hydroxide, 0.1g DMAP into a three-port 2000ml glass reactor with stirring device, heat up to ethanol reflux, and react for 8h under stirring , then add 2mol 2-aminothiophenol, continue the reaction at room temperature for 120min, wash with water until neutral after the reaction, remove impurities and water in the system by physical methods, and distill off the solvent in the system to obtain the reactive flame retardant with the above structure 242.17g.

[0085] 1 H NMR (CDCl 3 ,500MHz): δ7.77~7.61(m, 4H, PONH), 7.07~6.92(m, 8H, Ar-H), 4.61~4.55(s, 2H, Ar-SH), 4.51~4.45(m, 4H , CH 2 ), 1.53~1.42 (m, 4H, CH 2 ), 0.95~0.89 (s, 18H, CH 3 ).

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Abstract

The invention provides a reactive flame retardant, a preparation method and application thereof. The copper clad laminates prepared from the reactive flame retardant have good flame retardance, and good heat resistance, water resistance, mechanical and electrical properties. Being used for epoxy resin curing agents, the reactive flame retardant not only can replace conventional curing agents, butalso lower the curing temperature of epoxy resin and realize low temperature curing. The reactive flame retardant provided by the invention has the advantages of low preparation cost, abundant raw material sources and good performance, and has wide application prospects.

Description

technical field [0001] The invention belongs to the field of flame retardants, and relates to a reactive flame retardant and its preparation method and application. Background technique [0002] Electronic products represented by mobile phones, computers, cameras, and electronic game consoles, household and office electrical products represented by air conditioners, refrigerators, TV images, audio products, etc., and various products used in other fields, for the sake of safety, a large part All products require flame retardancy and heat resistance. [0003] The traditional technology generally adopts adding inorganic flame retardant substances such as aluminum hydroxide hydrate, magnesium hydroxide hydrate and other metal hydroxides containing crystal water to the material system, and adding brominated bisphenol A, brominated bisphenol A, brominated The method of organic flame retardant substances with relatively high halogen content such as bisphenol A epoxy resin can mak...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L61/06C08K5/5398C08K5/5399C07F9/177C07F9/205C07F9/24C07F9/44C07F9/48
Inventor 潘庆崇
Owner GUANGDONG GUANGSHAN NEW MATERIALS CO LTD
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