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Inorganic hybridized hydroxymethyl melamine phosphate and preparation method thereof

A technology of hybridized methylol melamine phosphate and methylol melamine, which is applied in organic chemistry and other fields, can solve the problems of easy sublimation and escape of melamine, poor high temperature resistance, etc., and solve the problem of unsatisfactory flame retardancy and high temperature resistance Improve and improve the effect of high temperature resistance and flame retardancy

Active Publication Date: 2017-01-25
重庆派昂科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, melamine polyphosphate is widely used as a phosphorus-nitrogen synergistic flame retardant, but because it is a salt of monomeric melamine, it shows that melamine is easy to sublimate and escape at high temperature, and has poor high temperature resistance. Therefore, how to use melamine polyphosphate Further improvement to overcome its shortcomings is urgently needed by the market

Method used

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  • Inorganic hybridized hydroxymethyl melamine phosphate and preparation method thereof
  • Inorganic hybridized hydroxymethyl melamine phosphate and preparation method thereof
  • Inorganic hybridized hydroxymethyl melamine phosphate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of Borated Hydroxymethylmelamine Phosphate

[0031] Molecular formula:

[0032]

[0033] Raw material ratio:

[0034]

[0035] (1) Hydroxymethylation reaction

[0036] Add melamine, formaldehyde and water to the reaction kettle according to the above ratio, add sodium hydroxide to adjust the pH to 8.0, and under the condition of 35° C., the rotating speed is 60 rpm, and the heat preservation is carried out for 120 minutes to carry out the methylol reaction to obtain methylol melamine;

[0037] (2) Hybridization reaction

[0038] Add sodium octaborate tetrahydrate and water into the reaction kettle, raise the temperature to 100°C and react for 2 hours, and the hybridization reaction is completed;

[0039] (3) Salt formation reaction

[0040] Add phosphoric acid to the reaction kettle at a constant speed for 1 hour, and stir at a constant speed for 30 minutes after the addition is complete;

[0041] (4) cooling filter

[0042] Cool to below 40°C an...

Embodiment 2

[0044] Preparation of Antimony Hybridized Hydroxymethylmelamine Phosphate

[0045] Molecular formula:

[0046]

[0047] Raw material ratio:

[0048]

[0049] (1) Hydroxymethylation reaction

[0050] Add melamine, formaldehyde and water to the reactor according to the above ratio, add potassium hydroxide to adjust the pH to 9.0, and at 65°C, rotate at 80 rpm, keep warm for 30 minutes to carry out methylol reaction to obtain methylol melamine;

[0051] (2) Hybridization reaction

[0052] Add antimony trioxide and water into the reaction kettle, raise the temperature to 110°C and react for 0.5 hours, and the hybridization reaction is completed;

[0053] (3) Salt formation reaction

[0054] Add phosphoric acid to the reaction kettle at a constant speed for 2 hours, and stir for 10 minutes at a constant speed after the addition;

[0055] (4) cooling filter

[0056] Cool to below 40°C and crystallize and filter to obtain antimony hybridized methylol melamine phosphate. ...

Embodiment 3

[0058] Preparation of molybdenum hybridized hydroxymethylmelamine phosphate

[0059] Molecular formula:

[0060]

[0061] Raw material ratio:

[0062]

[0063]

[0064] (1) Hydroxymethylation reaction

[0065] Add melamine, formaldehyde and water to the reaction kettle according to the above ratio, add sodium bicarbonate to adjust the pH to 8.5, and under the condition of 50° C., the rotation speed is 70 rpm, and the heat preservation is carried out for 80 minutes to carry out the methylol reaction to obtain methylol melamine;

[0066] (2) Hybridization reaction

[0067] Add sodium molybdate and water into the reaction kettle, raise the temperature to 105°C and react for 1 hour, and the hybridization reaction is completed;

[0068] (3) Salt formation reaction

[0069] Add phosphoric acid to the reaction kettle at a constant speed for 1.5 hours, and stir at a constant speed for 20 minutes after the addition is complete;

[0070] (4) cooling filter

[0071] Cool t...

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Abstract

The invention belongs to the technical field of inorganic hybridized polymer materials and particularly relates to inorganic hybridized hydroxymethyl melamine phosphate and a preparation method thereof. The preparation method mainly includes steps: (1) hydroxymethylation reaction, to be more specific, adding melamine, formaldehyde and water into a reactor, and performing hydroxymethylation reaction under a weak-alkaline medium condition to obtain hydroxymethyl melamine; (2) hybridization reaction, to be more specific, reacting with inorganic hybrid compounds; (3) salt forming reaction; (4) cooling and filtering, to be more specific, cooling to 40DEG C or below, crystallizing and filtering to obtain the inorganic hybridized hydroxymethyl melamine phosphate. The inorganic hybridized hydroxymethyl melamine phosphate prepared according to the method has advantages that by hybridization cross-linking reaction with the inorganic hybrid compounds, high-temperature flame-retardant elements such as boron, molybdenum and stibium are added into hydroxymethyl melamine phosphate generated finally, and accordingly high temperature resistance and flame retardation of the hydroxymethyl melamine phosphate are improved.

Description

technical field [0001] The invention belongs to the technical field of inorganic hybrid polymer materials, and in particular relates to an inorganic hybrid methylol melamine phosphate and a preparation method thereof. Background technique [0002] With the wide application and rapid development of engineering plastics, higher requirements are put forward for the performance of materials. On the premise of maintaining high mechanical properties, there are also higher requirements for flame retardancy and electrical performance. Therefore, in engineering plastics, flame retardant More and more people pay more and more attention to the overall evaluation of comprehensive properties in modification research. The flame retardants commonly used in engineering plastics mainly include halogen flame retardants, phosphorus nitrogen flame retardants, and inorganic flame retardants. Among them, the addition amount of halogen flame retardant is small, and the flame retardant efficiency ...

Claims

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Application Information

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IPC IPC(8): C07D251/64C09K21/10
Inventor 王洪波
Owner 重庆派昂科技发展有限公司
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