Polysiloxane-modified cationic polysaccharide compound as well as preparation method and application thereof

A technology of cationic polysaccharides and polysiloxanes, applied in cosmetic preparations, cosmetics, pharmaceutical formulations, etc., can solve problems such as insufficient softness and gloss, improve dispersibility, facilitate packaging and transportation, and improve application effects Effect

Active Publication Date: 2014-10-08
GUANGZHOU TINCI MATERIALS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the field of daily cosmetics, cationic modified polysaccharide compounds are one of the commonly used conditioning agents, but these conventional cationic polysaccharide compounds still have some deficiencies in the application effect, for example, the application of some cationic polysaccharide compounds in hair care products will have Insufficient softness and insufficient gloss, researchers in this field often improve its application effect through further modification or compounding. For example, in the patent CN 100543037C, a cationizing agent containing a hydrophobic alkyl group is used to treat cellulose. Modified to achieve good application effect; while in patent CN 103191033A, silicone oil emulsion and cationic starch are used to compound to achieve better application effect

Method used

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  • Polysiloxane-modified cationic polysaccharide compound as well as preparation method and application thereof
  • Polysiloxane-modified cationic polysaccharide compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Prepare 300g of ethanol aqueous solution with a mass fraction of 80% in the reactor, add 100g of starch, stir and disperse evenly, heat the material to a temperature of 50°C, then slowly add 6g of a 32% NaOH aqueous solution, and add 20g of it after reacting for 30min 70% aqueous solution of 2,3-epoxypropyltrimethylammonium chloride was stirred evenly, then the temperature was raised to 60°C for cationization reaction for 5 hours, and then aminopropanol with an average molecular weight of 35,000 and an amino group content of 0.6% was added Modification reaction was carried out with 5 g of base polydimethylsiloxane, and the reaction was completed by maintaining the temperature of the material at 60° C. to 70° C. for 2 hours.

[0039] Add 2.9g of glacial acetic acid for neutralization, measure pH=6.9 to stop the reaction, then filter the reaction material, and vacuum-dry the powder solid phase at 90°C to obtain 108g of polysiloxane-modified cationic starch.

Embodiment 2

[0041] Prepare 250g of ethanol aqueous solution with a mass fraction of 75% in a reaction flask, add 120g of cellulose, stir and disperse evenly, heat up to a material temperature of 55°C, then slowly add 6.5g of a 32% NaOH aqueous solution, react for 15min, then add 20g The aqueous solution of 2,3-epoxypropyltrimethylammonium chloride with a mass fraction of 70% was stirred evenly, then heated to 60°C for cationization reaction for 5 hours, and then added with an average relative molecular mass of 35,000 and an amino group content of 0.6%. 5g of aminopropyl polydimethylsiloxane was used for the modification reaction, and the temperature of the material was maintained at 60°C to 70°C for 2h to complete the reaction.

[0042] Add 3.1g of glacial acetic acid for neutralization, the measured pH=7.2 to stop the reaction, then filter the reaction material, and vacuum-dry the powder solid phase at 85°C to obtain 125g of polysiloxane-modified cationic cellulose.

Embodiment 3

[0044] Prepare 300g of isopropanol aqueous solution with a mass fraction of 75% in a reaction flask, add 100g of guar gum, stir and disperse evenly, heat up to a material temperature of 50°C, then slowly add 6g of a 32% KOH aqueous solution with a mass fraction, and react for 30 minutes Add 20 g of 2,3-epoxypropyltrimethylammonium chloride aqueous solution with a mass fraction of 70% and stir evenly, then raise the temperature to 55°C for cationization reaction for 5 hours, and then add 7.5 g of aminoethylaminopropyl polysiloxane was used for the modification reaction, and the reaction was completed for 1.5 hours while maintaining the temperature of the material at 60° C. to 70° C.

[0045] Add 2.9g of glacial acetic acid for neutralization, measure PH=7.1 to stop the reaction, then centrifuge the reaction material, take the powdered solid phase and carry out vacuum drying at 90°C to obtain 106g of polysiloxane-modified cationic guar gum.

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Abstract

The invention belongs to the technical field of modification of natural high polymer compounds and discloses a polysiloxane-modified cationic polysaccharide compound as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out a cationic modification reaction between a polysaccharide compound and a cationization agent, performing polysiloxane modification with active polysiloxane, or simultaneously performing cationic modifier polysiloxane modification on the polysaccharide compound, neutralizing and drying, thereby obtaining the polysiloxane-modified cationic polysaccharide compound. The product has the advantages of high water dispersibility and drifting difficulty of powder. In addition, due to the introduced polysiloxane, the application performances, such as softness and smoothness, of the cationic polysaccharide compound can be improved to a certain degree, and the polysaccharide compound can be applied to daily care products.

Description

technical field [0001] The invention belongs to the technical field of modification of natural polymer compounds, and in particular relates to a polysiloxane-modified cationic polysaccharide compound and its preparation method and application. Background technique [0002] Cationic polysaccharide compounds have a wide range of applications in human industrial production, such as the application of cationic starch, cationic cellulose, and cationic guar gum in the paper industry and daily care products. [0003] Since most cationic modified polymer polysaccharide compounds are powdery solids, the particles are relatively small and easy to scatter, so the product will have greater difficulties in the packaging and transportation process, and the fine particles are easily picked up by the packaging personnel. Absorption, causing harm to the body. [0004] In addition, in the application of cationic modified polysaccharide compounds, improving their water dispersibility has alwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00C08B31/08C08B31/00C08B11/145C08B15/05C08B37/00A61K8/73A61Q5/02
Inventor 雷秋芬张利萍
Owner GUANGZHOU TINCI MATERIALS TECH
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