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Binary mealmine compound and its preparing method, fire retardant and paint synthesized and their preparing method and use

A melamine and compound technology, applied in the field of compounds, can solve the problems of increased reaction, difficulty, poor water resistance, etc., and achieve the effects of increasing crosslinking density and improving flame retardancy

Inactive Publication Date: 2006-08-23
康富春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(1) There are not enough crosslinking groups (only three active groups NH 2 ), in some occasions such as coating resin, its cross-linking is not sufficient, the hardness and compactness of the paint film are not enough, and the water resistance is poor
(2) In the case of the same molar amount, the nitrogen content is not high enough, and increasing the molar ratio of the monomer will make the reaction difficult or even gel

Method used

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  • Binary mealmine compound and its preparing method, fire retardant and paint synthesized and their preparing method and use
  • Binary mealmine compound and its preparing method, fire retardant and paint synthesized and their preparing method and use
  • Binary mealmine compound and its preparing method, fire retardant and paint synthesized and their preparing method and use

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In a 1000ml three-necked flask equipped with stirring, a thermometer, and a reflux condenser, add 94g (1.0mol) of glutaronitrile, 184.8g (2.2mol) of dicyandiamide, 300ml of methanol and 15g of 85% potassium hydroxide successively, and heat to reflux for 24 hour, and then distill off the methanol, the residue was washed with cold water to neutrality, and dried to obtain 136 g of white solid, yield 52%.

[0051] Elemental analysis (%): C: 40.7 (41.2); H: 5.5 (5.3); N: 53.5 (53.4).

[0052] Note: The theoretical values ​​in brackets are the same below.

Embodiment 2

[0054] The reaction device is the same as in Example 1, 94g (1.0mol) of glutaronitrile, 168g (2.0mol) of dicyandiamide, 400ml of diethylene glycol methyl ether and 20g of potassium tert-butoxide are added successively, heated to 125-130°C for 3 hours , The solvent was evaporated under reduced pressure, the residue was washed with cold water until neutral, and dried to obtain 223 g of white solid, with a yield of 85%.

[0055] Elemental analysis (%): C: 41.3 (41.2); H: 5.2 (5.3); N: 53.7 (53.4).

Embodiment 3

[0057] The reaction device is the same as in Example 1, and 66g (1.0mol) of malononitrile, 210g (2.5mol) of dicyandiamide, 200ml of deionized water and 4g of sodium hydroxide are added successively, heated to reflux for 2 hours, cooled to room temperature, and washed with water until neutralized. property, and dried to obtain 115 g of white solid, yield 49%.

[0058] Elemental analysis (%): C: 36.2 (35.9); H: 4.3 (4.3); N: 59.6 (59.8).

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Abstract

The present invention discloses a kind one binary melamine compound with the general expression as shown, relates to the preparation process of the compound, the retardant resin and paint, and their preparation process and application.

Description

technical field [0001] The present invention relates to a kind of compound, especially refers to the binary melamine that can be used for the synthesis of flame-retardant resin, and the present invention also relates to the preparation method of this compound, and the flame-retardant resin synthesized by using this compound, paint and its preparation method and application. Background technique [0002] Melamine is widely used in the field of paint and flame retardant, and its characteristics are: (1) non-toxic, environmentally friendly material; (2) flame retardant, high temperature decomposition will not release toxic gases; Type or reactive monomer, can make the heat-resistant temperature above 300 ℃. Based on the above advantages, melamine has been widely used in the field of amino resin and flame retardant materials. Although there are many advantages mentioned above, due to its own structural reasons, there are still some defects to be overcome. (1) There are not eno...

Claims

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Application Information

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IPC IPC(8): C07D251/18C08G12/32C09K21/10C09K21/14
Inventor 康富春
Owner 康富春
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