A kind of flame retardant with capsule core structure and its preparation method and application

A technology of flame retardant and capsule core, which is applied in the field of flame retardant with capsule core structure and its preparation, can solve the problems of poor compatibility of polymer materials, poor water resistance of aluminum hypophosphite, poor flame retardant effect, etc., to achieve flame retardant Good flammability, low cost, excellent heat resistance

Active Publication Date: 2021-08-06
湖南美莱珀科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems in the prior art that aluminum hypophosphite has poor water resistance, poor compatibility with polymer materials, and is easy to decompose in advance during the flame retardant process, resulting in poor flame retardant effect, and provides a flame retardant with a capsule core structure. Combustion agent and its preparation method and application

Method used

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  • A kind of flame retardant with capsule core structure and its preparation method and application
  • A kind of flame retardant with capsule core structure and its preparation method and application
  • A kind of flame retardant with capsule core structure and its preparation method and application

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Embodiment 1

[0034] A preparation method of a flame retardant with a capsule-core structure, the specific steps are as follows:

[0035] (1) Mix aluminum hypophosphite and water, stir at 15°C for 1.2h to obtain a dispersion;

[0036](2) first add melamine to the dispersion liquid, stir for 1 hour at a temperature of 60° C., then continue to add cyanuric acid, and then carry out post-treatment to obtain a self-assembled product after stirring for 3 hours at a temperature of 105° C.; The molar ratio of cyanuric acid is 1:1;

[0037] (3) Mix the self-assembly product, bisphenol A diglycidyl ether and ethylene glycol, stir at 15°C for 1.2h, add fatty amine (triethylenetetramine), and stir at 70°C for 3h to After bisphenol A diglycidyl ether reacts with aliphatic amine to generate organic resin, post-treatment (filtering, drying, crushing) is carried out to obtain a flame retardant with a capsule-core structure, and the solubility of the flame retardant in water is 0.1g / 100 grams of water , t...

Embodiment 2

[0053] A preparation method of a flame retardant with a capsule-core structure, the specific steps are as follows:

[0054] (1) Mix aluminum hypophosphite and water, stir at 25°C for 0.1h to obtain a dispersion;

[0055] (2) First add melamine to the dispersion, stir for 2 hours at a temperature of 50°C, then continue to add phosphoric acid, and then carry out post-processing to obtain a self-assembled product after stirring at a temperature of 90°C for 6 hours; melamine and phosphoric acid The molar ratio is 1:1;

[0056] (3) Mix self-assembly product, bisphenol A diglycidyl ether and methanol, stir at 25°C for 0.1h, then add modified fatty amine (cardanol modified amine curing agent, also known as natural long-chain substituted phenalkamine curing agent , Brand: RQ-1021, Shandong Runqi Biotechnology Co., Ltd.), stirred at a temperature of 30°C for 6 hours until bisphenol A diglycidyl ether reacted with fatty amine to form an organic resin, and after post-treatment to obtain...

Embodiment 3

[0059] A preparation method of a flame retardant with a capsule-core structure, the specific steps are as follows:

[0060] (1) Mix aluminum hypophosphite and acetonitrile, stir at 25°C for 0.5h to obtain a dispersion;

[0061] (2) First add melamine to the dispersion liquid, stir for 1.5h at a temperature of 54°C, then continue to add hypophosphorous acid, and after stirring for 5h at a temperature of 80°C, perform post-processing to obtain a self-assembled product; melamine The molar ratio with hypophosphorous acid is 1:1;

[0062] (3) Mix the self-assembly product, bisphenol A diglycidyl ether and ethylene glycol, stir at 25°C for 0.6h, then add aromatic amine (4,4'-diaminodiphenylsulfone), at a temperature of 70°C Stir for 5 hours under certain conditions until bisphenol A diglycidyl ether reacts with aromatic amine to form an organic resin, and then perform post-treatment to obtain a flame retardant with a capsule-core structure. The solubility of the flame retardant in ...

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Abstract

The invention relates to a flame retardant with a capsule core structure and its preparation method and application. It is prepared by first self-assembling melamine and acid (inorganic acid or organic acid) on the surface of aluminum hypophosphite, and then wrapping organic resin on the surface of the self-assembly product. A flame retardant with a capsule core structure; the prepared flame retardant with a capsule core structure is mainly composed of an aluminum hypophosphite core, a melamine salt layer wrapped on the surface of the aluminum hypophosphite layer, and an organic resin layer wrapped on the surface of the melamine salt layer , Melamine salt is a self-assembled product of melamine and acid; the application is: compounding a flame retardant with a capsule-core structure with a synthetic polymer material or a natural polymer material to obtain a flame-retardant polymer material. The preparation method of a flame retardant with capsule core structure of the present invention has simple process and low cost; the prepared flame retardant has good flame retardancy, excellent heat resistance, good water resistance and excellent mechanical properties, and can be widely used It is suitable for the flame retardancy of polymer materials, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of flame retardant manufacture, and relates to a flame retardant with a capsule core structure and a preparation method and application thereof. Background technique [0002] As a halogen-free phosphorus flame retardant, aluminum hypophosphite has a high phosphorus content and can be used in various polymer materials. However, the flame retardant has poor water resistance, has a certain water solubility, and its flame retardant performance is not good, and the limiting oxygen index of flame retardant products is low. These problems limit its application in the field of flame retardant polymer materials. [0003] Researchers have adopted various schemes to solve the above problems. For example, the patent CN10613084B uses melamine cyanurate as a crystal seed to make aluminum hypophosphite grow on its surface to produce a spherical aluminum hypophosphite. Although the flammability has been improved, aluminum ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C09C1/40C09C3/06C09C3/08C08K9/10C08K3/32C08L77/00C08L23/00C08L67/00C08L101/00C08L7/00D21H21/34
CPCC08K3/32C08K9/10C08L7/00C08L23/00C08L67/00C08L77/00C08L101/00C08L2201/02C08L2201/08C09C1/40C09C3/006C09C3/063C09C3/08C09C3/10D21H19/14D21H21/34
Inventor 彭治汉秦铭骏郭承鑫彭志宏何小春彭治权义有华彭斌侯小彬
Owner 湖南美莱珀科技发展有限公司
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