Hexadecoic acid acidamide surfactant and synthetic method

A surfactant, hexadecanoic acid amide technology, applied in chemical instruments and methods, dissolution, chemical/physical process, etc., can solve the problem of small variety and quantity, and achieve the effect of low irritation and good compatibility
CN101254431AInactive Publication Date: 2008-09-03TIANJIN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIVERSITY OF TECHNOLOGY
Publication Date
2008-09-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A hexadecanamide surfactant and a synthetic method are provided. The inventive hexadecanamide surfactant has the structural formula as above. The synthetic method includes: synthesizing an amide surfactant directly from hexadecanoic acid, hydroxyethylethylene diamine and chloroacetic acid as raw materials, by a novel vacuum-amphoteric method without ring closing reaction. The method includes the following steps: synthesizing a hexadecanamide surfactant intermediate, and then performing amphoteric reaction by 'chloroacetic acid process' to obtain the hexadecanamide surfactant. The inventive hexadecanamide surfactant has low foaming performance, low irritation, and good compounding, washing, wetting and penetrating performance; and is widely used as a cleaning agent in daily chemical industry, as well as an emulsifier, a dispersant and an industrial surface cleaning agent.
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Description

【Technical field】:

[0001] The invention belongs to the technical field of surfactants and their preparation. 【Background technique】:

[0002] The palmitic acid amide surfactant involved in the present invention is a novel surfactant, and its performance is comparable to that of the carboxylic acid type imidazoline amphoteric surfactant.

[0003] Aliphatic hydrocarbon-based imidazoline amphoteric surfactants have excellent cleaning, wetting, foaming and dispersing properties [1，2] , very low irritation [3] , low toxicity or non-toxic [4] , antistatic [5] , antibacterial [6] , friendly to the environment.

[0004] Amphoteric surfactants are classified according to their structures: (1) imidazoline amphoteric surfactants (2) betaine amphoteric surfactants (3) amino acid surfactants (4) lecithin surfactants. Among them, the lecithin surfactant is a natural surfactant, and the rest are artificially synthesized [7] .

[0005] Amphoteric surfactants are a late-developed cla...

Claims

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