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Novel organic phosphide flame retardant and preparation method and application thereof

A technology of organic phosphorus and flame retardants, applied in the field of flame retardants, can solve the problems of high processing temperature of polyphenylene ether, inability to achieve flame retardant effect, pure white color is not easy to match, etc., to improve the carbon residue rate and save production Expenses, high whiteness effect

Active Publication Date: 2020-06-19
WEIHAI HELEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the processing temperature of polyphenylene ether is too high, so it cannot be widely used in the medium and low temperature fields, and polyphenylene ether itself has a yellow color, so it is difficult to match colors when using polyphenylene ether for flame retardancy, especially pure white is not easy to match colors; and Using aluminum diethyl hypophosphite alone cannot achieve a good flame retardant effect

Method used

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  • Novel organic phosphide flame retardant and preparation method and application thereof
  • Novel organic phosphide flame retardant and preparation method and application thereof
  • Novel organic phosphide flame retardant and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Dissolve 122g of diethyl hypophosphorous acid and 611g of sodium hexametaphosphate in 1000g of water at the same time to obtain solution ①, then add 40g of sodium hydroxide to solution ① to obtain the corresponding sodium salt mixture solution ②; dissolve 777g of aluminum sulfate octadecahydrate Obtain the solution ③ in 1000g of water; add the solution ② dropwise to the solution ③ to react to obtain a turbid solution, continue to stir for 0.5 hours after the addition, and control the entire reaction temperature at 0°C, and finally filter, wash and dry the obtained turbid solution , pulverized to obtain the compound salt ADXP, the ADXP whiteness is 96.

[0046] Or first dissolve 122g diethyl hypophosphorous acid and 611g sodium hexametaphosphate in 1000g water to obtain solution ①, then add 40g sodium hydroxide to solution ① to obtain the corresponding sodium salt mixture solution ②; Dissolve aluminum in 1000g water to obtain solution ③; add solution ③ dropwise to soluti...

Embodiment 2

[0048] 732g of diethyl hypophosphorous acid and 294g of aminotrimethylene phosphonic acid were simultaneously dissolved in 1500g of water to obtain a solution ④, and then 480g of sodium hydroxide was added into the solution ④ to obtain a corresponding sodium salt mixture solution ⑤; Dissolve aluminum in 5000g water to obtain solution ⑥; add solution ⑤ dropwise to solution ⑥ for reaction to obtain a turbid solution, continue stirring for 3 hours after the addition, control the entire reaction temperature at 50°C, and finally filter and wash the obtained turbid solution , dried, and pulverized to obtain the compound salt ADXP, and the whiteness of this ADXP is 97.

[0049] Or first 732g diethyl hypophosphorous acid and 294g aminotrimethylene phosphonic acid are dissolved in 1500g water to obtain a solution ④, then 480g sodium hydroxide is added to the solution ④ to obtain a corresponding sodium salt mixture solution ⑤; 1998g 18 Dissolve aluminum sulfate water in 5000g water to o...

Embodiment 3

[0051] Dissolve 244g of diethyl hypophosphorous acid and 43.6g of ethylenediamine tetramethylene phosphoric acid in 2000g of water simultaneously to obtain a solution ⑦, then add 112g of sodium hydroxide to the solution ⑦ to obtain the corresponding sodium salt mixture solution ⑧; Dissolve aluminum sulfate octahydrate in 2500g water to obtain solution ⑨; add solution ⑧ dropwise to solution ⑨ to react to obtain a turbid solution, continue to stir for 9 hours after the addition, and control the entire reaction temperature at 90°C. Finally, the obtained turbid solution Filter, wash, dry and pulverize to obtain the compound salt ADXP, and the whiteness of this ADXP is 95.

[0052] Or first dissolve 244g diethyl hypophosphorous acid and 43.6g ethylenediamine tetramethylene phosphoric acid in 2000g water to obtain solution ⑦, then add 112g sodium hydroxide to the solution ⑦ to obtain the corresponding sodium salt mixture solution ⑧; Dissolve 888g of aluminum sulfate octadecahydrate ...

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Abstract

The invention relates to a novel organic phosphide flame retardant and a preparation method and application thereof. The flame retardant is prepared when at least one of soluble salt of dialkyl hypophosphorous acid or soluble salt of monoalkyl hypophosphorous acid and at least one of soluble salts of amino polyalkylene phosphoric acid, polyamine polyalkylene phosphoric acid, alkylene phosphoric acid, alkylene polyphosphoric acid, polyphosphoric acid and poly-metaphosphoric acid are dropwise added into a non-halogen soluble salt solution of 2-4 valence metals for reaction, or when at least oneof dialkyl hypophosphorous acid or monoalkyl hypophosphorous acid and at least one of amino polyalkylene phosphoric acid, polyamine polyalkylene phosphoric acid, alkylene phosphoric acid, alkylene polyphosphoric acid, polyphosphoric acid and poly-metaphosphoric acid are dropwise added into at least one of active metal oxide or metal hydroxide of 2-4 valence metals for reaction. The obtained flameretardant is high in whiteness, has a carbon residue rate higher than that of dialkyl hypophosphite, is excellent in flame retardance, and can be widely applied to the technical field of flame retardants.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a novel organic phosphide flame retardant and its preparation method and application. Background technique [0002] As a widely used flame retardant carbon forming agent, polyphenylene ether has good carbon forming effect, and has excellent flame retardant carbon forming effect in flame retardant products, especially polyolefin and TPE. However, the processing temperature of polyphenylene ether is too high, so it cannot be widely used in the medium and low temperature fields, and polyphenylene ether itself has a yellow color, so it is difficult to match colors when using polyphenylene ether for flame retardancy, especially pure white is not easy to match colors; and Using aluminum diethyl hypophosphite alone cannot achieve a good flame retardant effect. Contents of the invention [0003] The object of the present invention is to solve the deficiencies of the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/30C07F9/38C08K5/5313C08L67/02C08L23/06C08L23/16C08L75/04
CPCC07F9/30C07F9/3808C07F9/3834C08K5/5313C08L67/02C08L23/06C08L23/16C08L75/04
Inventor 孟凡旭田仁春杜欢洋许皓亮郑军邵鹏飞
Owner WEIHAI HELEN NEW MATERIAL TECH CO LTD
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