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Carboxymethyl chitosan oligosaccharide quaternary ammonium salt/rectorite nanometer composite material and preparation method and application thereof

A technology of carboxymethyl chitosan oligosaccharide and nano-composite material, which is applied in the field of daily cosmetics and cosmetic additives, can solve the problems of high price of hyaluronic acid, zero physiological activity, and promote carcinogenesis, and achieves good UV resistance and anti-cancer properties. Oxidative, good moisturizing effect

Inactive Publication Date: 2012-06-20
广西南宁绿园北林木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they all have their own limitations: some traditional Chinese medicines have the possibility of promoting cancer on human skin; animal and vegetable oils have a single function, which is not suitable for some people; the yield of hyaluronic acid is low, and its physiological activity is almost zero. acid is expensive
[0004] Carboxymethylchitooligosaccharide quaternary ammonium salt / rectorite nanocomposite material is a new type of nanocomposite material that has just been developed. It has been proved to have good antibacterial properties, but its large-scale, rapid production and application still under development

Method used

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  • Carboxymethyl chitosan oligosaccharide quaternary ammonium salt/rectorite nanometer composite material and preparation method and application thereof
  • Carboxymethyl chitosan oligosaccharide quaternary ammonium salt/rectorite nanometer composite material and preparation method and application thereof
  • Carboxymethyl chitosan oligosaccharide quaternary ammonium salt/rectorite nanometer composite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] In the carboxymethyl chitooligosaccharide quaternary ammonium salt / rectorite nanocomposite material in this example, the carboxymethyl chitooligosaccharide quaternary ammonium salt accounted for 33.33%, and the rectorite accounted for 66.67%.

[0024] The weight average molecular weight of above-mentioned carboxymethyl chitosan oligosaccharide quaternary ammonium salt is 2.0 * 10 4 , the carboxymethyl substitution degree is 95%, and the substitution degree of the quaternary ammonium group is 20%.

[0025] The preparation method of the above-mentioned exfoliated carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanocomposite material is as follows:

[0026] step 1.

[0027] Disperse rectorite in deionized water to form a suspension with a concentration of 15 mg / mL, and obtain a rectorite suspension after swelling at room temperature for 36 hours;

[0028] Carboxymethyl chitosan quaternary ammonium salt was dissolved in deionized water to prepare...

Embodiment 2

[0032] In the carboxymethyl chitooligosaccharide quaternary ammonium salt / rectorite nanocomposite material in this embodiment, the carboxymethyl chitooligosaccharide quaternary ammonium salt accounts for 50%, and the rectorite accounts for 50%.

[0033] The weight average molecular weight of above-mentioned carboxymethyl chitosan oligosaccharide quaternary ammonium salt is 1.3 * 10 4 , the carboxymethyl substitution degree is 80%, and the substitution degree of the quaternary ammonium group is 35%.

[0034] The preparation method of the above-mentioned exfoliated carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanocomposite material is as follows:

[0035] step 1.

[0036] Disperse rectorite in deionized water to form a suspension with a concentration of 10 mg / mL, and obtain a rectorite suspension after swelling at room temperature for 30 hours;

[0037] Carboxymethyl chitosan quaternary ammonium salt was dissolved in deionized water to prepare a co...

Embodiment 3

[0041] In the carboxymethyl chitooligosaccharide quaternary ammonium salt / rectorite nanocomposite material in this example, the carboxymethyl chitooligosaccharide quaternary ammonium salt accounted for 66.67%, and the rectorite accounted for 33.33%.

[0042] The weight average molecular weight of above-mentioned carboxymethyl chitosan oligosaccharide quaternary ammonium salt is 8.0 * 10 3 , the carboxymethyl substitution degree is 50%, and the substitution degree of the quaternary ammonium group is 55%.

[0043] The preparation method of the above-mentioned exfoliated carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanocomposite material is as follows:

[0044] step 1.

[0045] Disperse rectorite in deionized water to form a suspension with a concentration of 10 mg / mL, and obtain a rectorite suspension after swelling at room temperature for 24 hours;

[0046] Carboxymethyl chitosan quaternary ammonium salt was dissolved in deionized water to prepare...

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Abstract

The invention discloses a rapid preparation method for a carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanometer composite material and an application thereof serving as a cosmetic additive. The method comprises the following steps of: preparing a rectorite suspension and a carboxymethyl chitosan oligosaccharide quaternary ammonium salt solution by taking deionized water as a solution; dropwise adding 5-20 mg / mL of the carboxymethyl chitosan oligosaccharide quaternary ammonium salt solution into the rectorite solution at one time; and treating with a microwave radiation heating method to obtain the carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanometer composite material. As proved by moisture absorption and moisture retention experiments, an anti-ultraviolet experiment and an inoxidability experiment, the carboxymethyl chitosan oligosaccharide quaternary ammonium salt / rectorite nanometer composite material has high ultraviolet resistance and high inoxidability apart from higher moisture retention than sodium hyaluronate, and is a novel environmentally-friendly, natural, efficient and multifunctional cosmetic additive with low cost.

Description

technical field [0001] The invention relates to the technical field of cosmetic additives, in particular to the application of a carboxymethylchitooligosaccharide quaternary ammonium salt / rectorite nanocomposite material as a cosmetic additive, and belongs to the field of daily cosmetics. Background technique [0002] Cosmetics have been widely studied and utilized by people since ancient times, and in the preparation process of cosmetics, cosmetic additives play a vital role in the quality of products. To some extent, it can be said that cosmetic additives determine the quality of cosmetics. [0003] Traditional cosmetic additives are generally Chinese herbal medicine raw materials, natural animal and vegetable oils and synthetic additives. But they all have their own limitations: some traditional Chinese medicines have the possibility of promoting cancer on human skin; animal and vegetable oils have a single function, which is not suitable for some people; the yield of hy...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08K3/34C08J3/28A61K8/73A61K8/29A61Q17/04A61Q19/00A61Q19/08
Inventor 王小英刘博孙润仓李晓云韩洋曾宪杰苏韩杰鲁俊祥
Owner 广西南宁绿园北林木业有限公司
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