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Inorganic hybridization polytetrahydrofuran diol etherification melamine resin and preparation method thereof

A technology of polytetrahydrofuran glycol etherified melamine resin and polytetrahydrofuran glycol etherified melamine, which is applied in the field of inorganic hybrid polymer materials, can solve problems such as gaps in high temperature resistance performance, and achieve flame retardancy and high temperature resistance. Effects of improved flame retardancy and high temperature resistance

Active Publication Date: 2016-12-07
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 hybridization polytetrahydrofuran diol etherification melamine resin and preparation method thereof
  • Inorganic hybridization polytetrahydrofuran diol etherification melamine resin and preparation method thereof
  • Inorganic hybridization polytetrahydrofuran diol etherification melamine resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of borated polytetrahydrofuran glycol etherified melamine resin

[0036] Molecular formula:

[0037]

[0038] (1) etherification reaction

[0039] Add hexamethylolmelamine and polytetrahydrofuran diol into the reaction kettle, add 31% hydrochloric acid to adjust the pH to 2.5, and carry out etherification reaction at 35°C with a stirring speed of 60 rpm and keep warm for 120 minutes to obtain polytetrahydrofuran diol Alcohol etherified melamine resin;

[0040] (2) Alkaline neutralization

[0041] Stir at a speed of 40 rpm, add 30% sodium hydroxide to adjust the pH to 8.0, and keep the temperature below 50°C during the alkali neutralization process;

[0042] (3) Hybridization reaction

[0043] 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;

[0044] (4) cooling filter

[0045] Cool to 60° C., add 2% diatomaceous earth filter aid, ...

Embodiment 2

[0047] Preparation of antimony hybrid polytetrahydrofuran glycol etherified melamine resin

[0048] Molecular formula:

[0049]

[0050] (1) etherification reaction

[0051] Add hexamethylolmelamine and polytetrahydrofuran diol into the reaction kettle, add 36% hydrochloric acid to adjust the pH to 5.5, and under the condition of 65°C, the stirring speed is 80 rpm, and keep warm for 30 minutes for etherification reaction to obtain polytetrahydrofuran Glycol etherified melamine resin;

[0052] (2) Alkaline neutralization

[0053] Stir at a speed of 80 rpm, add 30% potassium hydroxide to adjust the pH to 9.0, and keep the temperature below 50°C during the alkali neutralization process;

[0054] (3) Hybridization reaction

[0055] 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;

[0056] (4) cooling filter

[0057] Cool to 80°C, add 2.5% diatomite filter aid, fil...

Embodiment 3

[0059] Preparation of molybdenum hybridized polytetrahydrofuran glycol etherified melamine resin

[0060] Molecular formula:

[0061]

[0062] (1) etherification reaction

[0063] Add hexamethylol melamine and polytetrahydrofuran diol into the reaction kettle, add 31% nitric acid to adjust the pH to 3.5, under the condition of 50°C, the stirring speed is 60 rpm, and keep warm for 50 minutes for etherification reaction to obtain polytetrahydrofuran Glycol etherified melamine resin;

[0064] (2) Alkaline neutralization

[0065] Stir at a speed of 70 rpm, add 30% sodium hydroxide to adjust the pH to 8.2, and keep the temperature below 50°C during the alkali neutralization process;

[0066] (3) Hybridization reaction

[0067] Add sodium molybdate and water into the reaction kettle, raise the temperature to 105°C and react for 1.5 hours, and the hybridization reaction is completed;

[0068] (4) cooling filter

[0069] Cool to 70°C, add 2.5% diatomaceous earth filter aid, fil...

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Abstract

The invention belongs to the technical field of inorganic hybridization high polymer materials, in particular to inorganic hybridization polytetrahydrofuran diol etherification melamine resin and a preparation method thereof. The method mainly comprises the following steps of 1, an etherification reaction, wherein hexamethylol melamine and polytetrahydrofuran are added into a reaction kettle for a heat preservation reaction to obtain tetra-etherification or penta-etherification melamine resin; 2, alkali neutralization; 3, a hybridization reaction; 4, distillation removal of residual polytetrahydrofuran; 5, cooling filtering to obtain a finished product. According to the inorganic hybridization polytetrahydrofuran diol etherification melamine resin prepared through the method, on the basis of the hybridization reaction of the inorganic hybridization polytetrahydrofuran diol etherification melamine resin and inorganic hybridization compounds, finally-generated amino resin polytetrahydrofuran is introduced into born, antimony and other high temperature resistance flame retardant elements, and therefore the high temperature resistance and flame retardance of the amino resin polytetrahydrofuran are improved, and the inorganic hybridization polytetrahydrofuran diol etherification melamine resin is mainly used for preparing combined polyether and paint coatings.

Description

technical field [0001] The invention belongs to the technical field of inorganic hybrid polymer materials, and in particular relates to an inorganic hybrid polytetrahydrofuran glycol 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 also getting higher and higher, especially GB8624-2012 "Classification method for t...

Claims

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Application Information

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IPC IPC(8): C08G65/338C08G65/333C08G65/328C08G18/50C09D175/12C09D175/08C09D5/18C08J3/24
CPCC08G18/5063C08G65/328C08G65/33396C08G65/338C08G2101/00C08G2650/04C08J3/24C08J2371/02C09D5/18C09D175/08C09D175/12
Inventor 王洪波
Owner 重庆派昂科技发展有限公司