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A kind of phosphorus fluorine flame retardant and preparation method thereof

A flame retardant and precipitant technology, applied in the field of flame retardants, can solve the problems of difficulty in finding substitutes, environmental and human health hazards, hindering the development of halogen-based flame retardants, etc., to reduce heat and achieve better flame retardant effects. The effect of good, good weather resistance

Active Publication Date: 2019-12-06
刘松峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, halogenated flame retardants, especially fluorine-containing compounds, have good flame retardant properties, but in recent years it has been found that halogenated flame retardants are potentially harmful to the environment and human health, which hinders the development of halogenated flame retardants , because the flame retardant efficiency of halogenated flame retardants is beyond the reach of other flame retardants, and it is difficult to find suitable substitutes in the short term, it is necessary to optimize the performance of halogenated flame retardants and reduce their toxicity

Method used

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  • A kind of phosphorus fluorine flame retardant and preparation method thereof
  • A kind of phosphorus fluorine flame retardant and preparation method thereof
  • A kind of phosphorus fluorine flame retardant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0024] A preparation method of phosphorus fluorine flame retardant, comprising the following steps:

[0025] Step 1: Take 6.72g (20mmol) bisphenol AF and pour it into a three-necked flask with a capacity of 250ml containing 60ml of dichloromethane, stir to make bisphenol AF fully dissolve in dichloromethane to obtain a dichloromethane solution of bisphenol AF , add the triethylamine of 4.44g (44mmol) in the three-necked flask of the methylene chloride solution that fills bisphenol AF, place the three-necked flask adding triethylamine in ice-water bath, stir with magnetic stirrer, simultaneously with The constant pressure dropping funnel slowly added the dichloromethane solution of phenylphosphoryl dichloride to the three-necked flask, so that bisphenol AF and phenylphosphoryl dichloride reacted under the catalysis of triethylamine, in which phenylphosphoryl dichloride Dichloro is 3.94g (20mmol), and the volume of dichloromethane is 10ml, and the rate of addition is controlled ...

Embodiment 2

[0029] A preparation method of phosphorus fluorine flame retardant, comprising the following steps:

[0030] Step 1: Take 33.6g (0.1mol) of bisphenol AF and pour it into a three-necked flask with a capacity of 1000ml containing 250ml of dichloromethane. Bisphenol AF is fully dissolved in dichloromethane, and 22.2g (0.22 mol) of triethylamine for catalysis, the three-necked flask was placed in an ice-water bath, stirred with a magnetic stirrer, and at the same time, the dichloromethane solution of phenylphosphoryl dichloride was slowly added dropwise to the three-necked flask with a constant pressure dropping funnel , wherein phenylphosphoryl dichloride is 19.7g (0.1mol), and the volume of dichloromethane is 50ml, and the rate of addition is controlled so that the dichloromethane solution of phenylphosphoryl dichloride is added dropwise in 1.2 hours;

[0031] Step 2: After the dropwise addition, continue to stir the solution in the three-necked flask for 20 minutes until the te...

Embodiment 3

[0033] Embodiment 3: a kind of preparation method of phosphorus fluorine flame retardant comprises the following steps:

[0034] Step 1: Take 33.6g (0.1mol) of bisphenol AF and pour it into a three-necked flask with a capacity of 1000ml containing 250ml of dichloromethane. Bisphenol AF is fully dissolved in dichloromethane, and 22.2g (0.22 mol) of triethylamine for catalysis, the three-necked flask was placed in an ice-water bath, stirred with a magnetic stirrer, and at the same time, the dichloromethane solution of phenylphosphoryl dichloride was slowly added dropwise to the three-necked flask with a constant pressure dropping funnel , wherein phenylphosphoryl dichloride is 17.73g (0.09mol), and the volume of dichloromethane is 50ml, and the rate of addition is controlled so that the dichloromethane solution of phenylphosphoryl dichloride is added dropwise in 1.2 hours;

[0035] Step 2: After the dropwise addition, continue to stir the solution in the three-necked flask for 2...

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Abstract

The invention discloses a phosphor-fluorine flame retardant and a preparation method thereof. The structure of the phosphor-fluorine flame retardant is shown in the description, wherein n is a positive integer of 1 to 50. The flame retardant is a condensed high polymer phosphor-fluorine flame retardant which is synthesized by taking bisphenol AF and dichlorophenylphosphine oxide as raw materials and has a phosphor-fluorine synergistic effect, has a better flame-retardant effect, and has the advantages of good weather ability, as well as lower toxicity and the like compared with a traditional flame retardant; after the phosphor-fluorine flame retardant is added into a high polymer material, a separation-out phenomenon is avoided.

Description

Technical field: [0001] The invention relates to the technical field of flame retardants, in particular to a polycondensation polymer phosphorus-fluorine flame retardant with phosphorus-fluorine synergistic effect synthesized from bisphenol AF and phenylphosphoryl dichloride as raw materials and a preparation method thereof. Background technique: [0002] In recent years, with the development of industry, polymer materials have been widely used, such as various plastics, synthetic fibers, synthetic rubber and other products, are widely used in chemical industry, machinery, construction and transportation and other fields, which give full play to the high Molecular materials have the advantages of high molecular weight, light weight, low density, excellent mechanical properties, good insulation and good heat insulation performance, but most of the polymer materials are flammable, and will release a large amount of gas during combustion. Once a fire occurs, it will cause incal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G79/04C08L85/02
CPCC08G79/04C08L85/02C08L2201/02C08L2201/08
Inventor 王玉龙斛候强辜豪李振中
Owner 刘松峰
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