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Thickening composition of amino acid surfactant and preparation method of thickening composition

A technology of surfactants and amino acids is applied in the preparation of surface active detergent compositions, non-ionic surface active compounds, detergent mixture compositions, etc., and can solve the problems of increased cost, high compounding ratio, poor cost performance, etc. Achieve the effect of less irritation, wide application and good biocompatibility

Active Publication Date: 2021-07-30
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compounding ratio is not only high, but also needs to add some polymers, which increases the cost of the product, and the cost performance is poor

Method used

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  • Thickening composition of amino acid surfactant and preparation method of thickening composition
  • Thickening composition of amino acid surfactant and preparation method of thickening composition
  • Thickening composition of amino acid surfactant and preparation method of thickening composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A thickening composition of an amino acid surfactant and a preparation method thereof are as follows:

[0029] Take by weighing 2.0024g of 30% aqueous solution of sodium sarcosinate laurate, add 0.0236g N-dodecyl-2-pyrrolidone (C12P) therein, heat and mix uniformly at 100°C, then leave standstill at 20°C for 5 minutes, that is, the mass fraction of N-dodecyl-2-pyrrolidone added relative to sodium lauroyl sarcosinate is 1.18%, and the appearance is as follows figure 1 As shown, it is 1% in the figure.

Embodiment 2

[0031] A thickening composition of an amino acid surfactant and a preparation method thereof are as follows:

[0032] Take by weighing 2.0031g of 30% aqueous solution of sodium sarcosinate laurate, add 0.0437g N-dodecyl-2-pyrrolidone (C12P) therein, heat and mix uniformly at 100°C, then leave standstill at 20°C for 7 Minutes, that is, the mass fraction of N-dodecyl-2-pyrrolidone added relative to sodium lauroyl sarcosinate is 2.18%, and the appearance is as follows figure 1 As shown, it is 2% in the figure.

Embodiment 3

[0034] A thickening composition of an amino acid surfactant and a preparation method thereof are as follows:

[0035] Take by weighing 2.0076g of 30% aqueous solution of sodium sarcosinate laurate, add 0.0850g N-dodecyl-2-pyrrolidone (C12P) therein, heat and mix uniformly at 100°C, then stand at 20°C for 3 Minutes, that is, the mass fraction of N-dodecyl-2-pyrrolidone added relative to sodium lauroyl sarcosinate is 4.23%, and the appearance is as follows figure 1 As shown, it is 4% in the figure.

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Abstract

The invention discloses a thickening composition of an amino acid surfactant and a preparation method of the thickening composition, and belongs to the field of fine chemical engineering. According to the invention, the relatively small nonionic surfactant N-alkyl pyrrolidone is utilized to effectively thicken the amino acid surfactant sodium lauroyl sarcosinate under the condition of not adding any polymer. In the aspect of developing personal cleansing products which do not contain sulfates or ethoxylates and contain natural amino acid anionic surfactants, the effect of improving the viscosity is fundamentally achieved, and N-alkyl pyrrolidone has good biocompatibility, degradability and mildness, and is small in skin irritation and low in toxicity, and the thickening composition has obvious thickening effect on amino acid surfactants, and can be widely applied to the fields of daily chemical products such as skin and hair cleaning compositions, cosmetics, personal care products and the like.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, in particular to a thickening composition of an amino acid surfactant and a preparation method thereof. Background technique [0002] In the personal cleansing market, 'sulphate-free', 'ethoxylate-free' and 'natural' products are considered more environmentally friendly, sustainable and gentle. Therefore, natural surfactants such as polyglycerol-based surfactants, sugar-based surfactants, sterol-based surfactants, and amino acid-based surfactants have become research hotspots in recent years. Among natural surfactants, amino acid-based surfactants have attracted considerable attention. However, in the absence of polymer additives, it is difficult to increase the viscosity of the amino acid surfactant solution, and adding a polymer as a thickener can easily cause temperature sensitivity, hinder the foaming ability of the amino acid surfactant, and make the skin feel unpleasant. good. [...

Claims

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Application Information

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IPC IPC(8): C11D1/83A61K8/44A61K8/49A61Q19/00A61Q19/10
CPCC11D1/83A61K8/4913A61K8/442A61Q19/00A61Q19/10A61K2800/48C11D1/10C11D1/66C11D2111/14C11D2111/12
Inventor 刘学民吴珂
Owner JIANGNAN UNIV
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