Epoxy resin curing agent, synthesis method and curing method

A technology of epoxy resin curing and synthesis method, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of imino compounds, etc. It can solve the problem of stickiness on the surface of cured products, lack of color and yellowing resistance, and curing failure of the system surface etc. to achieve excellent yellowing resistance, bright surface and excellent scratch resistance
CN105646846BActive Publication Date: 2018-03-02雅安市弘利展化工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
雅安市弘利展化工有限公司
Publication Date
2018-03-02

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Abstract

The invention provides an epoxy resin curing agent, a synthesis method and a curing method and belongs to the field of curing agent products. The epoxy resin curing agent is N,N'-bis(3-aminopropyl) ethanediamine and is synthesized from raw materials including ethanediamine, ketone, acrylonitrile and the like through multi-step reactions. The epoxy resin curing agent has high curing strength, wear resistance and scratch resistance and has a higher curing speed at a low temperature, a surface after curing is bright, is not prone to oxidation and has excellent yellowing resistance. The synthesis method of the epoxy resin curing agent is simple in process and convenient to control.
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Description

technical field

[0001] The invention relates to the field of curing agent products, in particular to an epoxy resin curing agent and a synthesis method. Background technique

[0002] There are many kinds of epoxy resin curing agents. For room temperature curing transparent epoxy systems, aliphatic amines or their modified products are usually used as curing agents. Aliphatic amines and their derivatives curing agents have high reactivity and polarity, so they can quickly initiate the ring-opening reaction of the epoxy structure, but they are also very easy to absorb moisture and CO in the air 2 , so that the surface curing of the system fails or is incomplete, and eventually leads to defects such as stickiness, oil bleeding, and dullness on the surface of the cured product, especially when curing at low temperature, this phenomenon is particularly prominent.

[0003] In order to solve the above problems, fatty amines are usually subjected to hydrophobic pre-reaction, such a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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