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Diurea-based organic small molecular gel factor, preparation method thereof, thixotropic hydrocarbon fuel gel material and preparation method thereof

A small molecule gel and gel material technology, applied in the field of supramolecular chemistry, can solve the problems of difficult purification and many synthesis steps, and achieve the effects of wide application prospects, simple synthesis steps, and strong practicability

Inactive Publication Date: 2019-05-24
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used organic small molecule gelling factors have many synthesis steps and are difficult to purify

Method used

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  • Diurea-based organic small molecular gel factor, preparation method thereof, thixotropic hydrocarbon fuel gel material and preparation method thereof
  • Diurea-based organic small molecular gel factor, preparation method thereof, thixotropic hydrocarbon fuel gel material and preparation method thereof
  • Diurea-based organic small molecular gel factor, preparation method thereof, thixotropic hydrocarbon fuel gel material and preparation method thereof

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preparation example Construction

[0031] The preparation method of the diureido organic small molecule gelling factor of the present invention comprises the following steps:

[0032] Dissolve octadecylamine in the reaction solvent, then add tetramethylxylylene diisocyanate, react under nitrogen protection for 4 to 12 hours, and the reaction temperature is 20°C to 40°C. After the reaction is stopped, the reaction solution is removed by filtration and dried to obtain White solid powder product; add 4-10L of reaction solvent per mole of octadecylamine, and the molar ratio of octadecylamine to m-tetramethylxylylene diisocyanate is 2:1-3:1.

[0033] The molar ratio of the aforementioned octadecylamine to m-tetramethylxylylene diisocyanate is preferably 2.2:1 to 2.6:1.

[0034] The above reaction solvent is one or more of toluene, benzene, tetrahydrofuran, dichloromethane, chloroform, ethyl acetate or 1,2 dichloroethane.

[0035] The above-mentioned reaction solvent is preferably added in an amount of 4-8 L of reac...

Embodiment 1

[0045] In a 2.5-liter three-necked flask, add 54.5 grams of n-octadecylamine, 400 milliliters of ethyl acetate, and drop in 24.4 grams of meta-tetramethylxylylene diisocyanate, and the reaction solution is reacted under nitrogen protection at a reaction temperature of 20° C. After 12 hours, after the reaction was completed, it was filtered and dried to obtain 74.4 grams of a white solid powder product.

Embodiment 2

[0047] In a 2.5-liter three-necked flask, add 59.2 grams of n-octadecylamine, 600 milliliters of toluene, drop in 24.4 grams of m-tetramethylxylylene diisocyanate, and react the reaction solution for 8 hours at a reaction temperature of 35° C. under stirring under nitrogen protection. , filtered after the reaction, and dried to obtain 75.2 grams of a white solid powder product.

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Abstract

The invention relates to a diurea-based organic small molecular gel factor, a preparation method thereof, a thixotropic hydrocarbon fuel gel material and a preparation method thereof. The preparationmethod of the diurea-based organic small molecular gel factor comprises the following steps of: dissolving octadecylamine in a reaction solvent; adding tetramethylbenzene diisocynate, reacting for 4-12h under the protection of nitrogen, filtering and removing reaction liquid after the reaction to obtain a solid powder product, wherein each mole of octadecylamine is added with 4-10L of the reactionsolvent, and the molar ratio of the octadecylamine to the tetramethylbenzene diisocynate is 2:1-3:1; the diurea-based organic gel factor can be used for preparing the thixotropic organic gel materialfrom hydrocarbon fuel hanging type tetrahydrodicyclopentadiene, aviation kerosene and the like; and the organic gel material has excellent performance and good application prospect in the field of gel propellants.

Description

technical field [0001] The invention belongs to the technical field of supramolecular chemistry, and specifically relates to a diurea-based organic small molecule gel factor, a preparation method, a thixotropic hydrocarbon fuel gel material and a preparation method. Background technique [0002] Small organic molecule gelling factors are supramolecular gels formed by hydrogen bonds, π-π stacking, van der Waals forces, coordination bonds and other weak interactions. This special structural feature endows supramolecular gels with special properties. One of the potential application directions of small organic molecule gel materials is gel propellant formulation system. Gel propellant is a new type of propellant between solid propellant and liquid propellant. It is made of a small amount of gel to gel the liquid component to form a propellant with a certain structure and stability. . The commonly used organic small molecule gelling factor has many steps in synthesis and is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C273/18C07C275/24C06D5/00
Inventor 邱贤平朱朝阳庞爱民张思孙忠祥杜利陈克海
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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