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O/W type polysiloxane nano-emulsion and preparation method thereof

A technology of polysiloxane and nanoemulsion, which is applied in the field of cosmetics, can solve the problems of uneven dispersed phase particles and excessive particle size, and achieve the effects of simple preparation process, uniform particle size and stable system

Inactive Publication Date: 2015-05-20
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a O / W type polysiloxane with uniform dispersed phase particle size and smaller particle size in order to solve the above-mentioned technical problem of inhomogeneous dispersed phase particles and excessively large particle size of the common emulsion system. alkane nanoemulsion

Method used

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  • O/W type polysiloxane nano-emulsion and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] An O / W type polysiloxane nanoemulsion, calculated by weight percentage, the composition and content of each raw material in the described O / W type polysiloxane nanoemulsion are as follows:

[0030] Polysiloxane 1%

[0031] Emulsifier 5%

[0032] Organic additives 3%

[0033] Inorganic additives 0.01%

[0034] Water 90.99%

[0035] The polysiloxane is polydimethylsiloxane, an industrial-grade product for cosmetics produced by Dow Corning (China) Silicone Co., Ltd.;

[0036] The emulsifier is C 18 Alcohol polyoxyethylene ether mixture, that is, C with EO=2 18 Alcohol polyoxyethylene ether and C of EO=21 18 A mixture composed of alcohol polyoxyethylene ether, the HLB value of the mixture is 11.3, and the C of EO=2 18 Alcohol polyoxyethylene ether is 2%, HLB value is 5, EO=21 C 18 Alcohol polyoxyethylene ether is 3%, HLB value is 15.5, industrial-grade product provided by Croda (China) Co., Ltd., the EO mentioned is the average number of ethoxylates of polyoxyethyle...

Embodiment 2

[0045] An O / W type polysiloxane nanoemulsion, calculated by weight percentage, the composition and content of each raw material in the described O / W type polysiloxane nanoemulsion are as follows:

[0046] Silicone 15%

[0047] Emulsifier 15%

[0048] Organic additives 15%

[0049] Inorganic additives 0.5%

[0050] Water 54.5%

[0051] The polysiloxane is methylphenylpolysiloxane, an industrial-grade product produced by Dow Corning (China) Silicone Co., Ltd.;

[0052] Described emulsifier is the mixture that is made up of sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester, and the HLB value of mixture is 10.72, and wherein sorbitan fatty acid ester is 6%, and HLB value 4.3, polyoxyethylene sorbitan fatty acid ester is 9%, HLB value is 15, industrial grade product provided by Sinopharm Chemical Reagent Co., Ltd.;

[0053] Described inorganic salt is Potassium Chloride, the chemically pure product of Sinopharm Group Chemical Reagent Co., Ltd.;

[0054] ...

Embodiment 3

[0060] An O / W type polysiloxane nanoemulsion, calculated by weight percentage, the composition and content of each raw material in the described O / W type polysiloxane nanoemulsion are as follows:

[0061] Silicone 30%

[0062] Emulsifier 25%

[0063] Organic additives 25%

[0064] Inorganic additives 2.0%

[0065] water 18%

[0066] The polysiloxane is a long-chain alkyl-modified polysiloxane, an industrial-grade product produced by Dow Corning (China) Silicone Co., Ltd.;

[0067] Described emulsifying agent is polyglyceryl stearate mixture, namely the mixture that is made up of polyglyceryl stearate and polydecacyl stearate, the HLB value of mixture is 10.6, wherein polytriglyceryl stearate 10%, HLB value 7, polydecacyl stearate 15%, HLB value 13, industrial grade products provided by Lonza (China) Co., Ltd.;

[0068] Described inorganic salt is magnesium sulfate, the chemically pure product of Sinopharm Group Chemical Reagent Co., Ltd.;

[0069] The organic additive is...

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Abstract

The invention discloses O / W type polysiloxane nano-emulsion and a preparation method thereof. The O / W type polysiloxane nano-emulsion consists of the following components in percentage by weight: 1-30 percent of polysiloxane, 5-25 percent of emulsifying agent, 3-25 percent of organic additive, 0.01-2.0 percent of inorganic additive and the balance of water. The preparation method of the O / W type polysiloxane nano-emulsion comprises the following steps of: firstly mixing the polysiloxane and the emulsifying agent and then heating to 70-90 DEG C to obtain a uniformly dispersed oil phase component; then mixing the organic additive, the inorganic additive and water and then heating to 70-90 DEG C to obtain a uniformly dispersed water phase component; and finally, homogenizing the oil phase component at a homogenizing speed of 15,000-30,000 rpm, meanwhile, adding the water phase component therein, homogenizing for 5-15 minutes, then controlling the stirring speed to be 300-800 rpm and naturally cooling to room temperature to obtain the O / W type polysiloxane nano-emulsion with particle diameter of dispersed phase particles within 100-500 nm.

Description

technical field [0001] The invention belongs to the technical field of cosmetics, and relates to an O / W polysiloxane nanoemulsion and a preparation method thereof. Background technique [0002] Polysiloxane is a kind of Si-O-Si with a unique silicon-oxygen bond structure, endowed with large bond angles and bond lengths, and small intermolecular forces. It is not easy to crystallize like ordinary organic molecules, so it has good air permeability. ; Its high bond energy makes silicone polymers have outstanding heat resistance and excellent flexibility, and the helical structure of its molecular chain and the longitudinal outer side of the methyl group make it have extremely low surface tension and good water repellency performance. Because the silicon-hydrogen bond (Si-H) has great activity, it can be hydrolyzed and condensed to form a film under the action of high temperature and metal salt. Due to the special structure, organosiloxane polymers have a series of properties ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L83/08C08L83/06C08K5/05C08K5/053C08K3/16C08K3/30C08J3/03
Inventor 张婉萍朱海洋范争荣
Owner SHANGHAI INST OF TECH