Synthesis of quasi chitosan-fatty acid salt and development of green surfactant

Abstract

The invention relates to a novel method for simply producing a novel green cleaning detergent in an aqueous solution system. Green detergent series products which are prepared from mixed fatty acid and quasi chitosan biomass amino compounds and have high surface activity are developed, surface tension of an aqueous solution is reduced to 28-29 mN / m, critical micelle concentration is 0.38-0.40 mg / ml, and the products are far better than sodium dodecyl sulfate and soap. According to the technology, biomass raw materials are widely sourced, the cost is low, and the prepared products are good in biological degradability, safe and environment-friendly.

Description

technical field

[0001] The invention relates to the synthesis of a pseudochitosan fatty acid salt and the development of a green surfactant. Bio-based sulfuric acid monoester salt is generated by sulfonation process through biomass raw materials such as cellulose and starch, and then ammoniated to synthesize 6- Amino cellulose or 6-amino starch, and then salted with mixed fatty acids, can synthesize a green high-efficiency surfactant that is superior to the most commonly used surfactant raw material, sodium dodecylbenzene sulfonate. Background technique

[0002] Surfactants have hydrophilic and lipophilic groups, which can be aligned on the surface of the solution, and refer to surface active substances that can significantly change the interface state of the solution when added in a small amount. One end of the molecular structure of the surfactant is a hydrophilic group, and the other end is a hydrophobic group; the hydrophilic group is often a polar group such as carboxyl...

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