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Organosilicon emulsion and preparation method thereof

A technology of silicone emulsion and polyorganosiloxane, which is applied in the field of silicone emulsion and its preparation, can solve the problems that the emulsification efficiency of emulsifier needs to be further improved

Active Publication Date: 2011-04-06
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, silicone polyether, sorbitan polyether derivatives, alkylphenol polyether derivatives, etc. are usually used as emulsifiers to disperse silicone mixtures, but the emulsification efficiency of these emulsifiers needs to be further improved

Method used

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  • Organosilicon emulsion and preparation method thereof
  • Organosilicon emulsion and preparation method thereof
  • Organosilicon emulsion and preparation method thereof

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preparation example Construction

[0043] Preparation of active substances:

[0044] Active substances A, B, C, and D were prepared by using the reaction raw materials and conditions in the following table and following the preparation method of the aforementioned active substances.

[0045] Table 1

[0046]

[0047] Preparation of silicon polyether:

[0048] Preparation of Silicon Polyether E 1 ,E 2 ,E 3 and E 4 , whose structural formula is:

[0049]

[0050] where R 2 , R 3 , r, s, e, f, t are shown in Table 2.

[0051] Table 2

[0052] Silicon polyether

[0053] R 3

[0054] Preparation of higher fatty alcohol polyethers:

[0055] Preparation of Higher Fatty Alcohol Polyether F 1 , F 2 , F 3 and F 4 , whose general structure is R 1 O(EO) m (PO) n H, R 1 The values ​​of , m and n are shown in Table 3.

[0056] table 3

[0057] Advanced fatty alcohol polyether

[0058] Preparation of emulsion:

Embodiment 1

[0060] The composition of the emulsion is:

[0061] Active Substance A 5%

[0062] Active Substance B 15%

[0063] Silicon polyether E 1 3%

[0064] Silicon polyether E 2 3%

[0065] Octylphenol polyoxyethylene (9) ether 0.5%

[0066] Advanced fatty alcohol polyether F 1 1.5%

[0067] Acrylic thickener 1%

[0068] Potassium sorbate 0.1%

[0069] water balance

[0070] Total 100%

[0071] At room temperature, fully mix the active material, higher fatty alcohol polyether, and silicon polyether for 35 minutes under stirring. After completion, raise the temperature of the above system to 60°C. Then, keep the system temperature, slowly add water, and increase the stirring speed Make it change from water-in-oil emulsion to oil-in-water emulsion phase inversion, continue to add water to the required mass concentration, which is 50%, the coarse emulsion is further emulsified by colloid mill, and finally diluted to solid content with acrylic...

Embodiment 2

[0073] The composition of the emulsion is:

[0074] Active Substance C 10%

[0075] Active Substance D 15%

[0076] Silicon polyether E 1 4%

[0077] Silicon polyether E 3 2.5%

[0078] Sorbitan Monooleate 1.0%

[0079] Advanced fatty alcohol polyether F 2 2.5%

[0080] Acrylic thickener 2%

[0081] Kethon 0.1%

[0082] water balance

[0083] Total 100%

[0084] At room temperature, fully mix the active material, higher fatty alcohol polyether, and silicon polyether for 40 minutes under stirring. After completion, raise the temperature of the above system to 80°C. Then, keep the system temperature, slowly add water, and increase the stirring speed Make it change from water-in-oil emulsion to oil-in-water emulsion phase inversion, continue to add water to the required mass concentration, which is 60%, the coarse emulsion is further emulsified by colloid mill, and finally diluted to solid content with acrylic acid thickening water 35% ...

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Abstract

The invention discloses an organosilicon emulsion which comprises active substances, high-grade fatty alcohol polyether, an emulsifying agent, polyether modified polysiloxane and water, wherein the active substrates are obtained from polysiloxane and lyophobic particles under the action of a catalyst. A preparation method of the organosilicon emulsion comprises the steps of: A, fully mixing the active substances, the high-grade fatty alcohol polyether, the emulsifying agent and the polyether modified polysiloxane for 10-50min through stirring; B, raising the temperature of the system in the step A to 55-85 DEG C; C, keeping the temperature of the system, slowly adding the water, increasing the stirring speed to ensure that a water-in-oil emulsion is changed into an oil-in-water emulsion, and continuously adding the water until the mass concentration is 40-70 percent; and D, further emulsifying crude emulsion through a colloid mill, and finally, diluting without thickening water until the needed emulsion concentration is reached. The organosilicon emulsion prepared by the method has stable property, and can be widely applied to the industries of papermaking, spinning and weaving, coating, leather, medicine, cosmetics and the like.

Description

technical field [0001] The invention relates to a silicone emulsion and a preparation method thereof. The silicone emulsion is an important fine chemical additive. Therefore, the invention belongs to the technical field of fine chemical preparations. technical background [0002] Silicone emulsion is one of the important silicone products. Due to its unique properties and characteristics, it has been widely used in industries such as papermaking, textiles, pulp, coatings, construction, leather, medicine, cosmetics and other industries. field, and the application field is still expanding, and the application potential is great. In the above application fields, the use of silicone in the form of water emulsion is the most economical, convenient and safe, and at the same time meets the requirements of environmental protection. [0003] The silicone emulsion used in the industrial process is mainly of the oil-in-water type. There are two main preparation methods for the oil-in-...

Claims

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Application Information

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IPC IPC(8): C08L83/10C08L71/02C08L83/12C08J3/03
Inventor 钟翔吴飞许勇曹添
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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