A silicone emulsion

An organosilicon emulsion and organosilicon technology, applied in the field of fine chemical preparations, can solve problems such as poor performance durability and larger particle size of organosilicon emulsions

Active Publication Date: 2021-09-28
南京瑞思化学技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to disclose a silicone emulsion and its preparation method, to solve the problem that the particle size of the silicone emulsion becomes larger and the performance durability is poor in the application system

Method used

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  • A silicone emulsion
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  • A silicone emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] At room temperature, add 15 parts of silicone composition A-1, 10 parts of polyether-modified polysiloxane B-2, and 9 parts of silicone-modified polyether C-1 into a container equipped with a dispersing disc stirrer and 4 parts of stearyl polyoxyethylene ether (21), disperse for 5 minutes at a speed of 800 rpm, so that the materials can be mixed evenly. Then keep the above rotation speed and add 30 parts of water for 40 minutes. After the water phase and oil phase are completely mixed, add 2 parts of polyacrylic acid thickener, and adjust the pH value to 7.5 with monoethanolamine, stir for 10 minutes and then add 30 parts in 20 minutes. water, at this time to obtain a coarse emulsion with a solid content of 40%, and pass through the emulsification pump again to obtain the desired high-concentration emulsion E1.

Embodiment 2

[0070] At room temperature, add 13 parts of silicone composition A-2, 13 parts of polyether-modified polysiloxane B-4, and 5 parts of silicone-modified polyether C-5 into a container equipped with a dispersing disc stirrer 1. 6 parts of octanol polyoxyethylene ether (3) (MOA3) and isomeric tridecyl alcohol polyoxyethylene ether (7), dispersed for 15 minutes at a speed of 1500 rpm, so that the materials can be mixed evenly. Then keep the above rotation speed and add 28 parts of water for 25 minutes. After the water phase and oil phase are completely mixed, add 2 parts of polyacrylic acid and 1 part of xanthan gum as two thickeners, and adjust the pH value to 6.5 with monoethanolamine, and stir further 20min; then add 32 parts of water in 40min, at this time to obtain a coarse emulsion with a solid content of 40%, and pass through the emulsification pump again to obtain the desired high-concentration emulsion E2.

Embodiment 3

[0072] At room temperature, add 28 parts of silicone composition A-5, 3 parts of polyether-modified polysiloxane B-2, and 2 parts of polyether-modified polysiloxane B into a container equipped with a dispersing disc stirrer -3, 5 parts of silicone modified polyether C-3, 1 part of span60 and 1 part of tween60, disperse at 3000rpm for 30 minutes, so that the materials can be mixed evenly. Then keep the above rotation speed and add 35 parts of water for 60 minutes. After the water phase and oil phase are completely mixed, add 2 parts of polyacrylic acid thickener, adjust the pH value to 7.0 with monoethanolamine, and stir for 30 minutes; then add 15 parts at 50 minutes. 10 parts of water and 10 parts of ice, the coarse emulsion with a solid content of 40% was obtained at this time, and passed through the emulsification pump again to obtain the desired high-concentration emulsion E3.

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Abstract

The invention relates to a silicone emulsion, which comprises a silicone composition, a polyether-modified polysiloxane, a silicone-modified polyether, a nonionic surfactant, a thickener, water and other auxiliary agents. Use the combination of polyether-modified polysiloxane and silicone-modified polyether molecules to emulsify and disperse the high-viscosity silicone composition, and obtain a silicone emulsion with good stability, good durability, and not easy to precipitate in the application system . The silicone emulsion prepared by this method can be used in textile, industrial cleaning, sewage treatment, pulp and paper making and other environments.

Description

technical field [0001] The invention relates to a silicone emulsion, which belongs to the preparation of fine chemical additives and belongs to the technical field of fine chemical preparations. Background technique [0002] Silicone is a new type of polymer material that emerged in the 1950s. It has penetrated into many fields of the national economy from the beginning of military use to now, such as textiles, coatings, papermaking, oil extraction, sealing, building materials, etc. It is It is an indispensable material in the process of national economic development. [0003] The application of silicone generally belongs to the application of polymers. People make polymers into emulsion type, solvent type and solid type, which is convenient for end users to use. Silicone emulsion is a very important type, it can be used as defoamer, water repellent, water repellant, release agent, adhesive and so on in the industry. [0004] A large number of experiments and applications ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08J3/03C08L83/04C08L83/05C08L83/08C08L83/07C08L83/12C08L71/00
Inventor不公告发明人
Owner南京瑞思化学技术有限公司