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Organic silicone elastomer emulsion and preparation method thereof

A silicone and emulsion technology, which is applied in the field of silicone elastomer emulsion and its preparation, can solve the problem of not getting soft and smooth skin feeling of silicone elastomer

Active Publication Date: 2017-06-13
湖南斯洛柯有机硅有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pure water-based system and the emulsification system with a small proportion of oil phase cannot get the soft and smooth skin feeling of silicone elastomer because of the inability to add a sufficient amount of silicone elastomer gel

Method used

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  • Organic silicone elastomer emulsion and preparation method thereof
  • Organic silicone elastomer emulsion and preparation method thereof
  • Organic silicone elastomer emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] (4) Preparation of emulsion A:

[0097] The base polymer was prepared as follows:

[0098]

[0099] Vinyl double headers (tetramethyldivinyldisiloxane, divinyltetramethyldisiloxane) and D 4 Under the catalysis of sulfuric acid, equilibrate at room temperature for 5 hours, let the layers stand, remove the acid solution, and use Na 2 CO 3 After neutralizing the remaining acid, filter to obtain the basic polymer-divinyl-terminated silicone oil.

[0100] n is the degree of polymerization, n=120, and the molecular weight of the base polymer is 9066;

[0101] Emulsifier: Silok-2205 (commercially available);

[0102] Catalyst: methyl vinyl siloxane coordination platinum complex;

[0103] Water phase: use pure water;

[0104] Preparation method: mix 300g of base polymer and 0.04mg of catalyst evenly and record it as I; add 40g of emulsifier into 1000mL water and mix uniformly and record it as II; add I to II at a stirring speed of 500r / min, and homogenize to obtain Em...

Embodiment 2

[0116] (4) Preparation of emulsion A:

[0117] Base polymer preparation:

[0118]

[0119] Vinyl double-header (tetramethyldivinyldisiloxane, divinyltetramethyldisiloxane), D 4 and heptamethylvinyl D 4 Under the catalysis of sulfuric acid, equilibrate at room temperature for 5 hours, let the layers stand, remove the acid solution, and use Na 2 CO 3 After neutralizing the remaining acid, filter to obtain the basic polymer-divinyl-terminated silicone oil containing one vinyl group in the side chain.

[0120] m and n are degrees of polymerization, m=8, n=160, and the molecular weight of the base polymer is 12714;

[0121] Emulsifier: Silok-2205 (commercially available);

[0122] Catalyst: methyl vinyl siloxane coordination platinum complex;

[0123] Water phase: use pure water;

[0124] Preparation method: mix 250g of base polymer and 0.08mg of catalyst evenly and record it as I; add 45g of emulsifier into 1000ml of water and mix evenly and record it as II; add I to II ...

Embodiment 3

[0135] (4) Preparation of emulsion A:

[0136] Base polymer preparation:

[0137]

[0138] Vinyl double-header (tetramethyldivinyldisiloxane, divinyltetramethyldisiloxane), heptamethylphenyl D 4 and D 4Under the catalysis of sulfuric acid, equilibrate at room temperature for 5 hours, let the layers stand, remove the acid solution, and use Na 2 CO 3 After neutralizing the remaining acid, filter to obtain the basic polymer-divinyl-terminated silicone oil containing phenyl in the side chain.

[0139] m, n is the degree of polymerization, m=10, n=120, the molecular weight of the base polymer is 10411;

[0140] Emulsifier: Silok-2205 (commercially available);

[0141] Catalyst: methyl vinyl siloxane coordination platinum complex;

[0142] Water phase: use pure water;

[0143] Preparation method: mix 300g of base polymer and 0.07mg of catalyst evenly and record it as I; add 40g of emulsifier into 1000ml of water and mix uniformly and record it as II; add I to II at a stirr...

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Abstract

The invention relates to the field of high-molecular materials, and particularly relates to an organic silicone elastomer emulsion and a preparation method thereof. The organic silicone elastomer emulsion is characterized by being prepared from emulsion A and emulsion B, wherein the emulsion A is prepared from divinyl terminated silicone oil, and the emulsion B is prepared from silicone oil with two hydrogenous ends and a hydrogenous side chain. The organic silicone elastomer emulsion can be added into a pure water system or an emulsified product with a relatively large aqueous phase ration more easily. Furthermore, the invention aims at providing a preparation method of the organic silicone elastomer emulsion, which is convenient for industrial production.

Description

technical field [0001] The invention relates to the field of polymer materials, and more specifically relates to a silicone elastomer emulsion and a preparation method thereof. [0002] technical background [0003] In the daily chemical industry, silicone elastomer is also called silicone elastomer gel. Silicone elastomers are generally prepared by dispersing and swelling large molecular weight cross-linked silicone powder into low-viscosity oil. Commonly used greases include cyclopentasiloxane, low-viscosity simethicone, cyclohexane, and isomerized dodecane. [0004] Silicone elastomers have the advantages of excellent high and low temperature resistance, weather resistance, ozone resistance, resistance to various chemicals, high air permeability and physiological inertia. In addition to the above advantages, the network cross-linked silicone elastomer also has high resilience. When an external force is applied, the microstructure of the elastomer will change, and the ela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/442C08G77/20C08G77/08C08G77/06A61K8/895A61K8/06A61Q19/00
CPCA61K8/06A61K8/895A61Q19/00C08G77/06C08G77/08C08G77/20C08G77/442
Inventor 孙东明高鹏东徐运欢陈名吉
Owner 湖南斯洛柯有机硅有限公司
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