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Diphenylphosphinamide silicone oil flame retardant and preparation method thereof

A technology of diphenylphosphine and diphenylphosphine, which is applied in the field of diphenylphosphamide silicone oil flame retardant and its preparation, can solve the problems of single flame retardant element and low flame retardant efficiency, and achieves the The effect of small mechanical properties, high flame retardant efficiency and good compatibility of materials

Active Publication Date: 2021-12-10
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most halogen-free flame retardants have a single flame retardant element. When the addition amount is high, the flame retardant requirements of PC can be met, and the flame retardant efficiency is not high.

Method used

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  • Diphenylphosphinamide silicone oil flame retardant and preparation method thereof
  • Diphenylphosphinamide silicone oil flame retardant and preparation method thereof
  • Diphenylphosphinamide silicone oil flame retardant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of diphenylphosphinamide silicone oil flame retardant, its structural formula is as follows:

[0038]

[0039] Such as figure 1 Therefore, its preparation method is as follows:

[0040] S1. Under stirring conditions, stir 25ml toluene, 25g aminophenyl silicone oil and 0.555ml (4.02mmol) acid-binding agent for 10min;

[0041] S2. Slowly add 0.52ml (2.68mmol) of diphenylphosphinyl chloride in 5ml of toluene mixed solution in step S1 at a rate of 15 drops / min, and perform low temperature reaction for 2 hours after the addition;

[0042] S3. After the low-temperature reaction in step S2 is completed, the reaction system is heated, and the temperature is raised to 80° C., and the reaction is continued for 12 hours;

[0043] S4, after step S3 reaction finishes, filter out triethylamine;

[0044] S5. After the filtrate obtained in step S4 is subjected to rotary evaporation to remove toluene, dichloromethane is added for dissolution, and the crude product is dissol...

Embodiment 2

[0047] A kind of diphenylphosphinamide silicone oil flame retardant, its structural formula is as follows:

[0048]

[0049] Such as figure 1 Therefore, its preparation method is as follows:

[0050] S1. Under stirring conditions, stir 25ml toluene, 25g aminophenyl silicone oil and 0.555ml (4.02mmol) acid-binding agent for 10min;

[0051] S2. Slowly add 0.52ml (2.68mmol) of diphenylphosphinic chloride in 5ml of toluene mixed solution in step S1, the dropping rate is 35 drops / min, and carry out low temperature reaction for 4h after dropping;

[0052] S3. After the low-temperature reaction in step S2 is completed, the reaction system is heated, and the temperature is raised to 60° C., and the reaction is continued for 12 hours;

[0053] S4, after step S3 reaction finishes, filter out triethylamine;

[0054]S5. After the filtrate obtained in step S4 is subjected to rotary evaporation to remove toluene, dichloromethane is added for dissolution, and the crude product is disso...

Embodiment 3

[0057] A kind of diphenylphosphinamide silicone oil flame retardant, its structural formula is as follows:

[0058]

[0059] Such as figure 1 Therefore, its preparation method is as follows:

[0060] S1. Under stirring conditions, stir 25ml toluene, 25g aminophenyl silicone oil and 0.555ml (4.02mmol) acid-binding agent for 10min;

[0061] S2. Slowly add 0.52ml (2.68mmol) of diphenylphosphinic chloride in 5ml of toluene mixed solution in step S1, the dropping rate is 50 drops / min, and carry out low temperature reaction for 4h after dropping;

[0062] S3. After the low-temperature reaction in step S2 is completed, the reaction system is heated, and the temperature is raised to 60° C., and the reaction is continued for 18 hours;

[0063] S4, after step S3 reaction finishes, filter out triethylamine;

[0064] S5. After the filtrate obtained in step S4 is subjected to rotary evaporation to remove toluene, dichloromethane is added for dissolution, and the crude product is diss...

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Abstract

The invention belongs to the technical field of macromolecular flame retardants, and particularly relates to a diphenylphosphinamide silicone oil flame retardant and a preparation method thereof. According to the main technical scheme, the structural formula of the diphenylphosphinamide silicone oil flame retardant is shown in the specification. According to the diphenylphosphinamide silicone oil flame retardant and the preparation method thereof provided by the invention, the flame retardant effect and the stability are improved on the basis of not changing the mechanical property of a high polymer material.

Description

technical field [0001] The invention belongs to the technical field of polymer flame retardants, and in particular relates to a diphenylphosphoramidite silicone oil flame retardant and a preparation method thereof. Background technique [0002] In recent years, polymer materials have played an increasingly important role in people's production and life. Polymer materials have many excellent properties, such as: good insulation performance, excellent mechanical properties, heat insulation, high molecular weight, etc. Due to the above-mentioned excellent physical and chemical properties, polymer materials have made outstanding contributions in aerospace equipment, industrial equipment, transportation tools, sports and scientific research special equipment. However, most polymer materials are flammable, and they can easily burn and cause fire when heated, causing great losses to personal safety, the environment, and social economy. At present, there are many kinds of flame re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/395
CPCC08G77/395Y02P20/55
Inventor 王标兵蒋青
Owner CHANGZHOU UNIV
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