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Pickering emulsification preparation method of high-performance single-component invisible skin coating liquid

A one-component, coating liquid technology, applied in the field of preparation of invisible skin coating liquid, can solve problems such as lack of elasticity, and achieve the effects of increasing interaction, reducing cost and simple preparation process

Active Publication Date: 2020-07-24
FUDAN UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned Pickering emulsion has a certain film-forming property, it lacks the same elasticity as skin

Method used

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  • Pickering emulsification preparation method of high-performance single-component invisible skin coating liquid
  • Pickering emulsification preparation method of high-performance single-component invisible skin coating liquid
  • Pickering emulsification preparation method of high-performance single-component invisible skin coating liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] ① Silane coupling agent on nano-SiO 2 particle surface modification

[0051] Add 5 g of fumed silica (A380) into 150 mL of absolute ethanol, and ultrasonically disperse for 30 min to obtain a dispersion of fumed silica; add 0.5 g of ethyltrimethoxysilane A171 and 0.5 g of methyltrimethoxy Add silane (MTMS) dropwise to 15 mL of absolute ethanol, and continue to stir at room temperature for 15 minutes to make it alcoholyze; Add it dropwise into a four-neck bottle, and at the same time add ammonia water dropwise to adjust the pH value to 8. The reactant was continuously stirred at 80 °C for 8 h to obtain a modified liquid; the obtained modified liquid was centrifuged and washed with ethanol, Centrifuge and wash with deionized water for 3-6 times at 8000 rpm for 10 min, and finally disperse the centrifuged product in deionized water to obtain modified A380 aqueous dispersion A1 with a solid content of 5 wt%.

[0052] Add 10 g of A380 into 200 mL of absolute ethanol, ultra...

Embodiment 2

[0069] Take 70 wt% vinyl silicone oil Pickering emulsion B1, 15 wt% hydrogen-containing silicone oil Pickering emulsion C2, and 15 wt% Karstedt catalyst capsule emulsion D11 in Example 1 and mix them uniformly under low-speed stirring to prepare a one-component invisible skin coating cloth liquid.

Embodiment 3

[0071] Take 75 wt% vinyl silicone oil Pickering emulsion B2, 10 wt% hydrogen-containing silicone oil Pickering emulsion C1, and 15 wt% Karstedt catalyst capsule emulsion D12 in Example 1 and mix them uniformly under low-speed stirring to prepare a one-component invisible skin coating cloth liquid.

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Abstract

The invention belongs to the technical field of fine chemicals, and particularly relates to a Pickering emulsification preparation method of high-performance single-component invisible skin coating liquid. The method comprises the following steps: modifying nano SiO2 particles by adopting a silane coupling agent, and regulating and controlling the lipophilicity and hydrophilicity of the surfaces of the nano SiO2 particles; taking modified nano SiO2 particles as an emulsifier, carrying out high-speed emulsification to prepare a vinyl silicone oil Pickering emulsion and a hydrogen-containing silicone oil Pickering emulsion; preparing a capsule emulsion of the Karstedt catalyst; and compounding and mixing the vinyl silicone oil Pickering emulsion, the hydrogen-containing silicone oil Pickering emulsion and the Karstedt catalyst capsule emulsion in proportion to prepare the single-component invisible skin coating liquid. The prepared coating liquid is applied to the surface of skin, a high-transparency elastic coating film can be automatically formed, and the coating liquid is high in adhesive force and free of irritation. And compared with the coating liquid prepared based on the traditional surfactant, the mechanical property of the coating film is better. The coating liquid is applied to the surface of human skin and has the functions of removing wrinkles, preserving moisture, isolating and the like.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a preparation method of an invisible skin coating liquid. Background technique [0002] Pickering emulsion is a new type of emulsion that uses solid particles instead of traditional organic surfactants to stabilize the system, and its corresponding solid particles are called Pickering emulsifiers. Compared with traditional surfactant-stabilized emulsions, Pickering emulsions have many advantages, such as simple preparation process, reduced emulsifier dosage, cost savings, safety and non-toxicity, environmental friendliness, renewability, etc., and less foaming in the actual application process , the stability of the emulsion is stronger; in addition, because of the unique properties of the interface particle film, the perfect combination of organic and inorganic characteristics endows the Pickering emulsion with excellent performance. It is used in cosmetics, f...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D183/05C09D7/62C09D7/40A61K8/895A61K8/891A61K8/06A61K9/107A61K47/04A61Q1/00A61Q17/00A61Q19/00A61Q19/08
CPCA61K8/062A61K8/891A61K8/895A61K9/107A61K47/02A61K2800/413A61K2800/614A61Q1/00A61Q17/00A61Q19/00A61Q19/08C08K2201/003C08K2201/011C08L2201/10C08L2203/02C08L2205/025C08L2312/00C09D183/04C09D7/62C09D7/70C08L83/04C08K9/06C08K7/26C08K3/36
Inventor 周树学李萍王棽来旭春陈磊吴梁李青峰
Owner FUDAN UNIV
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