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Brassylic acid glycidyl ester modified hexamethylenediamine curing agent and preparation method and applications thereof

A technology of glycidyl ester and tridecanedioic acid, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of amino hydroxyl compounds, etc., can solve the problems of insufficient impact resistance and high brittleness, and achieve short reaction time, The effect of small temperature fluctuation and convenient operation

Active Publication Date: 2017-12-26
SHANGHAI RESIN FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide a tridecanedioic acid glycidyl ester modified amine curing agent in order to solve the above-mentioned technical problems of high brittleness and insufficient impact resistance

Method used

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  • Brassylic acid glycidyl ester modified hexamethylenediamine curing agent and preparation method and applications thereof
  • Brassylic acid glycidyl ester modified hexamethylenediamine curing agent and preparation method and applications thereof
  • Brassylic acid glycidyl ester modified hexamethylenediamine curing agent and preparation method and applications thereof

Examples

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Effect test

Embodiment 1

[0048] A kind of tridecanedioic acid glycidyl ester modified amine curing agent, its structural formula is as follows:

[0049] .

[0050] Described tridecanedioic acid glycidyl ester modified amine curing agent is prepared by the method comprising the following steps:

[0051] (1), the preparation of raw material, calculate by weight, the amount of each raw material used for preparation is as follows:

[0052]

[0053] The catalyst is a quaternary phosphine salt, and the quaternary phosphine salt is tetrabutylphosphine chloride;

[0054] Described sodium hydroxide solution is the aqueous sodium hydroxide solution that mass percent concentration is 40%;

[0055] (2), esterification reaction

[0056] First add 110 parts of tridecanedioic acid and 100 parts of toluene into a four-necked flask equipped with stirring, nitrogen protection, thermometer, and condenser, heat to 70°C and stir evenly, so that tridecanedioic acid is fully dissolved in toluene, Then add 208 parts...

Embodiment 2

[0070] A kind of tridecanedioic acid glycidyl ester modified amine curing agent, its structural formula is as follows:

[0071] .

[0072] Described tridecanedioic acid glycidyl ester modified amine curing agent is prepared by the method comprising the following steps:

[0073] (1), the preparation of raw material, calculate by weight, the amount of each raw material used for preparation is as follows:

[0074]

[0075] Described catalyst is tertiary amine, and described tertiary amine is triethylamine;

[0076] Described sodium hydroxide solution is the aqueous sodium hydroxide solution that mass percent concentration is 40%;

[0077] (2), esterification reaction

[0078] First add 130 parts of tridecanedioic acid and 120 parts of toluene into a four-necked flask equipped with stirring, nitrogen protection, thermometer and condenser, heat to 70°C and stir evenly, so that tridecanedioic acid is fully dissolved in toluene, Then add 345 parts of epichlorohydrin and 5 pa...

Embodiment 3

[0092] A kind of tridecanedioic acid glycidyl ester modified amine curing agent, its structural formula is as follows:

[0093] .

[0094] Described tridecanedioic acid glycidyl ester modified amine curing agent is prepared by the method comprising the following steps:

[0095] (1), the preparation of raw material, calculate by weight, the amount of each raw material used for preparation is as follows:

[0096]

[0097] The catalyst is a quaternary phosphonium salt, and the quaternary phosphonium salt is tetrabutylphosphine bromide;

[0098] Described sodium hydroxide solution is the aqueous sodium hydroxide solution that mass percent concentration is 40%;

[0099] (2), esterification reaction

[0100] First add 100 parts of tridecanedioic acid and 110 parts of toluene into a four-necked flask equipped with stirring, nitrogen protection, thermometer, and condenser, heat to 70°C and stir evenly, so that tridecanedioic acid is fully dissolved in toluene, Then add 341 part...

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Abstract

The invention discloses a brassylic acid glycidyl ester modified hexamethylenediamine curing agent and a preparation method and applications thereof. The preparation method comprises the following steps: at first, carrying out esterification reactions between brassylic acid and epoxy chloropropane under the effect of a catalyst in a toluene solvent at a controlled temperature of 80-110 DEG C to obtain a chloro-alcohol ester intermediate; mixing the chloro-alcohol ester intermediate with a sodium hydroxide water solution, carrying out cyclization reactions at a controlled temperature of 40-85 DEG C to obtain brassylic acid glycidyl ester; and finally, carrying out amination reactions between brassylic acid glycidyl ester and hexamethylenediamine at a temperature of 60 to 75 DEG C to obtain the brassylic acid glycidyl ester modified hexamethylenediamine curing agent. The prepared brassylic acid glycidyl ester modified hexamethylenediamine curing agent has a high amine value, can be used with epoxy resin (epoxy resin E51, for example) to carry out curing, and has an excellent toughening effect on a cured product. The preparation method has the advantages of simple production technology, convenient operation, high output, and suitability for industrial production.

Description

technical field [0001] The invention relates to a tridecanedioic acid glycidyl ester modified amine curing agent and its preparation method and application, in particular to a tridecanedioic acid glycidyl ester modified amine curing agent for curing epoxy resins and its preparation methods and applications. Background technique [0002] Epoxy resin has the characteristics of high adhesion, good chemical resistance, excellent mechanical properties, and excellent electrical insulation. It can be widely used in various fields such as adhesives, coatings, composite materials, aerospace, transportation, and construction. [0003] However, epoxy resin itself has almost no use value, and it must be added with a curing agent to have use value. The curing agent is an indispensable component in the epoxy formulation system, which has a very important impact on the processing technology and application field, and plays a decisive role in the final performance of the epoxy resin, becom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C219/06C07C213/04C08G59/50
Inventor 吴蓁童伟何辛高晟弢杨志星周心怡赵亮
Owner SHANGHAI RESIN FACTORY
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