Organic fire retardant and preparation method thereof

A kind of flame retardant, organic technology, applied in the field of flame retardants, can solve the problems of halogenated flame retardants application restrictions, toxic and harmful gases, etc., and achieve good anti-dripping performance, good stability, and good appearance characteristics Effect

Inactive Publication Date: 2018-08-17
汝城县三鑫电化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous strengthening of environmental protection, the application of halogenated flame retardants is greatly restricted, mainly because such flame retardants will release toxic and harmful gases

Method used

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  • Organic fire retardant and preparation method thereof
  • Organic fire retardant and preparation method thereof
  • Organic fire retardant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In a 100mL reaction tube, add 6 mmol of diphenyl antimony chloride (R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 The group is hydrogen), 9mmol aryl boronic acid (R 14 , R 15 , R 16 , R 17 , R 18 The group is hydrogen), 5 mol% nickel acetate, 2 equivalents of sodium carbonate, vacuum backfill nitrogen three times, add 40ml toluene under nitrogen atmosphere, and react at 120°C for 12h. After the reaction, the toluene was removed under reduced pressure, and the target product was obtained by recrystallization from ethyl acetate and n-hexane with a yield of 90%.

[0030] Add the nitrogen-containing organic antimony flame retardant prepared in the above example 1 into the epoxy resin to carry out the oxygen index test and the vertical combustion level test, and use the oxygen index meter to measure according to the GB / T 2406.1-2008 standard, and the sample size is 100mm× 6.5mm×3mm, according to the UL94 standard using a ver...

Embodiment 2

[0034] In a 100mL reaction tube, add 6 mmol of diphenyl antimony chloride (R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 The group is hydrogen), 9mmol aryl boronic acid (R 14 , R 15 , R 17 , R 18 The group is hydrogen, R 16 For methyl), 5mol% nickel acetate, 2 equivalents of sodium carbonate, vacuum backfill nitrogen three times, add 40ml toluene under nitrogen atmosphere, and react at 120°C for 10h. After the reaction, the toluene was removed under reduced pressure, and the target product was obtained by recrystallization from ethyl acetate and n-hexane with a yield of 92%.

[0035] Add the nitrogen-containing organic antimony flame retardant prepared in the above example 2 into the epoxy resin to carry out the oxygen index test and the vertical combustion level test. According to the GB / T 2406.1-2008 standard, use the oxygen index meter to measure, the sample size is 100mm× 6.5mm×3mm, according to the UL94 standard using a v...

Embodiment 3

[0040] In a 100mL reaction tube, add 6 mmol of diphenyl antimony chloride (R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 The group is hydrogen), 9mmol aryl boronic acid (R 14 , R 15 , R 17 , R 18 The group is hydrogen, R 16 Ethyl), 5 mol% nickel acetate, 2 equivalents of sodium carbonate, vacuum backfill nitrogen three times, add 40ml toluene under nitrogen atmosphere, and react at 120°C for 8h. After the reaction, the toluene was removed under reduced pressure, and the target product was obtained by recrystallization from ethyl acetate and n-hexane with a yield of 93%.

[0041] Add the nitrogen-containing organic antimony flame retardant prepared in the above example 3 into the epoxy resin to carry out the oxygen index test and the vertical combustion level test, and use the oxygen index meter to measure according to the GB / T 2406.1-2008 standard, and the sample size is 100mm× 6.5mm×3mm, according to the UL94 standard using a...

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Abstract

The invention discloses an organic fire retardant and a preparation method thereof. The method comprises the following steps: using a common organic solvent as a reaction solvent, using diphenyl antimony chloride containing a bridge-type nitrogen atom ligand and arylboronic acid easily obtained in low price as raw materials, by using a nickel (II) catalytic reaction, preparing a novel nitrogenousorganic antimony fire retardant (I) in high yield and high selectivity. A test result shows that the novel nitrogenous organic antimony fire retardant reaches a national standard in two important flame retardant property index aspects of a limit oxygen index and vertical burning, and achieves the excellent flame retardant efficiency. The fire retardant has the advantages of no halogen, low toxicity, less additive amount and good compatibility with polymer materials and the like.

Description

【Technical field】 [0001] The invention relates to the field of flame retardants, in particular to an organic flame retardant and a preparation method thereof. 【Background technique】 [0002] The rapid development of modern information technology has promoted the development of polymer materials. At present, polymer-based materials have been widely used in various fields of national defense construction and national economy. However, most polymeric polymer materials, such as general-purpose polyethylene, polypropylene, polystyrene, etc., are flammable or combustible, and the fire tragedies caused by the toxic and harmful fumes released by the burning of polymer material products are increasing year by year. Statistics show that the main cause of casualties in fires is not fire, but the smoke and poisonous gases released during combustion, which seriously endanger the safety of people's lives and property. Therefore, how to improve the flame retardancy of synthetic polymers ...

Claims

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Application Information

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IPC IPC(8): C08K5/5397C08K5/56C07F9/53C07F9/92C08L63/00C08L33/04C08L61/06
Inventor 张福彪
Owner 汝城县三鑫电化有限公司
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