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Inorganic hybridized mixed-etherified melamine resin and preparation method thereof

A technology of etherified melamine resin and etherified melamine, which is applied in the field of inorganic hybrid polymer materials, can solve problems such as the gap in high temperature resistance, achieve high temperature resistance, improve high temperature resistance, flame retardancy, and excellent physical properties Effect

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

However, when applied to highly flame-retardant polyurethane materials, there is still a certain gap in its high-temperature resistance.

Method used

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  • Inorganic hybridized mixed-etherified melamine resin and preparation method thereof
  • Inorganic hybridized mixed-etherified melamine resin and preparation method thereof
  • Inorganic hybridized mixed-etherified melamine resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Boronized Mixed Etherified Melamine Resin

[0038] Molecular formula:

[0039]

[0040] Raw material ratio:

[0041]

[0042] (1) etherification reaction

[0043] Add hexamethylol melamine, methanol and butanol into the reaction kettle according to the above ratio, add hydrochloric acid to adjust the pH to 2.5, and carry out the etherification reaction at 35°C with a stirring speed of 60 rpm and keep warm for 120 minutes to obtain a mixed ether Melamine resin;

[0044] (2) Alkaline neutralization

[0045] Stir at a speed of 40 rpm, add sodium hydroxide to adjust the pH to 8.0, and keep the temperature below 50°C during the alkali neutralization process;

[0046] (3) Hybridization reaction

[0047] 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;

[0048] (4) distillation to remove residual methanol and butanol

[0049] Unde...

Embodiment 2

[0053] Preparation of antimony hybrid mixed etherified melamine resin

[0054] Molecular formula:

[0055]

[0056] Raw material ratio:

[0057]

[0058] (1) etherification reaction

[0059] Add hexamethylol melamine, methanol and butanol into the reaction kettle according to the above ratio, add nitric acid to adjust the pH to 5.5, and under the condition of 65°C, the stirring speed is 80 rpm, and the etherification reaction is carried out for 30 minutes to obtain a mixture Etherified melamine resin;

[0060] (2) Alkaline neutralization

[0061] Stir at a speed of 80 rpm, add potassium hydroxide to adjust the pH to 9.0, and keep the temperature below 50°C during the alkali neutralization process;

[0062] (3) Hybridization reaction

[0063]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;

[0064] (4) distillation to remove residual methanol and butanol

...

Embodiment 3

[0069] Preparation of molybdenum hybrid mixed etherified melamine resin

[0070] Molecular formula:

[0071]

[0072] Raw material ratio:

[0073]

[0074] (1) etherification reaction

[0075] Add hexamethylolmelamine, methanol and butanol into the reaction kettle according to the above ratio, add hydrochloric acid to adjust the pH to 4.5, and under the condition of 55°C, the stirring speed is 75 rpm, and the etherification reaction is carried out for 90 minutes after heat preservation to obtain a mixture Etherified melamine resin;

[0076] (2) Alkaline neutralization

[0077] Stir at a speed of 60 rpm, add alkali to adjust the pH to 8.6, and keep the temperature below 50°C during the alkali neutralization process;

[0078] (3) Hybridization reaction

[0079] Add sodium molybdate and water into the reaction kettle, raise the temperature to 100°C and react for 1.5 hours, and the hybridization reaction is completed;

[0080] (4) distillation to remove residual methan...

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Abstract

The invention belongs to the technical field of inorganic hybridized polymer materials and particularly relates to inorganic hybridized mixed-etherified melamine resin and a preparation method thereof. The preparation method mainly includes steps: (1) etherification reaction, to be more specific, adding hexamethylol melamine, methyl alcohol and butyl alcohol into a reactor, and performing thermal reaction to obtain tetra-etherified or penta-etherified melamine resin; (2) alkali neutralization; (3) hybridization reaction; (4) distillation for removing residual methyl alcohol and butyl alcohol; (5) cooling and filtering to obtain a finished product. The inorganic hybridized mixed-etherified melamine resin prepared according to the method has advantages that by hybridization cross-linking reaction with inorganic hybrid compounds, high-temperature flame-retardant elements such as boron, molybdenum and stibium are added into amino resin generated finally, and accordingly high temperature resistance and flame retardation of the amino resin are improved, and the resin is mainly applied to preparation of combined polyether and paint.

Description

technical field [0001] The invention belongs to the technical field of inorganic hybrid polymer materials, in particular to an inorganic hybrid mixed etherified melamine resin and a preparation method thereof. Background technique [0002] Because amino resin has a certain temperature resistance, it is used in many fields, including coating industry, furniture industry, polyurethane industry and so on. However, when applied to highly flame-retardant polyurethane materials, there is still a certain gap in its high-temperature resistance. [0003] Due to the special molecular structure of polyurethane foam plastics, it is easy to burn and not resistant to high temperature. With the continuous popularization and application of polyurethane energy-saving thermal insulation rigid foam application technology, the requirements for its flame retardant performance are getting higher and higher, especially GB8624-2012 "Classification method for the combustion performance of building ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C07F11/00
CPCC07F5/022C07F11/005
Inventor 王洪波
Owner 重庆派昂科技发展有限公司
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