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Organosilicon waterborne emulsion and preparation method thereof

A silicone water-based and organic technology, applied in the field of emulsions, can solve the problems such as the unstable quality of silicone emulsions, the environmental pollution of surfactants, and achieve the effects of short production cycle, large output and stable process.

Inactive Publication Date: 2015-12-30
SUZHOU HUIFENG LUBRICANT
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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 overcome the shortcomings of the quality instability of the organic silicon emulsion and the environmental pollution of the surfactant in the prior art, and provide a kind of environment-friendly high-stability organic silicon water-based emulsion and its preparation method , the silicone aqueous emulsion has high stability, is safe and environmentally friendly, and the preparation process is simple and convenient

Method used

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  • Organosilicon waterborne emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Containing 15% of α, ω-dihydroxy polydimethylsiloxane, 12% of isomeric C 10 Alkylated alcohol polyoxyethylene (10) ether is put into a high-speed stirrer, and at a temperature of 50°C, first stir and mix evenly at a low speed, and then add 73% of the water dropwise within 2 hours under high-speed stirring, that is, A milky white silicone aqueous emulsion was obtained. The experimental results are shown in Table 1.

Embodiment 2

[0035] Containing 40% α, ω-bis-trimethylsiloxy polydimethylsiloxane, 20% isomeric C 13 Alkylated alcohol polyoxyethylene (8) ether is put into a high-speed stirrer, and under the temperature condition of 25°C, first stir and mix evenly at a low speed, and then add 40% of the water dropwise within 2 hours under high-speed stirring, That is, a milky white silicone aqueous emulsion was obtained. The experimental results are shown in Table 1.

Embodiment 3

[0037] Containing 18% α, ω-bis-trimethylsiloxy poly(dimethylsiloxane-methyl long-chain alkylsiloxane), 12% α, ω-bis-trimethylsiloxane based poly(dimethylsiloxane-methylphenylsiloxane), 5% isomeric C 8 Alkylated alcohol polyoxyethylene (3) ether, 5% isomeric C 10 Alkylated alcohol polyoxyethylene (10) ether is put into a high-speed stirrer, and at a temperature of 70° C., first stir at a low speed and mix evenly, and then add 60% of the water dropwise within 2 hours under high-speed stirring. That is, a milky white silicone aqueous emulsion was obtained. The experimental results are shown in Table 1.

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Abstract

The invention discloses organosilicon waterborne emulsion and a preparation method thereof. The organosilicon waterborne emulsion comprises, by weight percentage, 15-50% of organopolysiloxane, 10-25% of surfactant and the balance of water, wherein the surfactant is isomeric alcohol ethoxylate which is low in use amount and high in emulsifying capacity and permeability as compared with surfactant commonly used by organopolysiloxane. The preparation method includes: during common high-speed mechanical stirring, using water as dispersing medium to sequentially add the surfactant and the organopolysiloxane; under the temperature lower than 80 DEG C, stirring at low speed and evenly mixing, and stirring at high speed to obtain the milky white organosilicon waterborne emulsion. The organosilicon waterborne emulsion and the preparation method thereof have the advantages that the preparation method is simple in process, good in repeatability and convenient to operate, and the prepared emulsion is high in biodegradability, non-toxic and environmental friendly.

Description

technical field [0001] The invention relates to the technical field of emulsions, in particular to an environment-friendly and highly stable organic silicon aqueous emulsion and a preparation method thereof. Background technique [0002] Organopolysiloxane oil has excellent chemical stability, heat resistance, cold resistance, weather resistance, lubricity, hydrophobicity and low surface tension, and is non-toxic and harmless to human health. Wide range of applications. However, due to the strong hydrophobicity of organopolysiloxane oil, it is difficult to disperse in the water system, so its use in some aspects is limited. The emergence of silicone emulsions solves this problem, so organopolysiloxane oils are mostly used in the form of emulsions. At present, silicone emulsions are widely used in textile industry, plastic processing, papermaking, finishing agents, defoamers, Release agent, building surface waterproofing agent, cosmetics and ink formulations, etc. [0003]...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/06C08L83/07C08J3/03
Inventor 诸国建沈志晨
Owner SUZHOU HUIFENG LUBRICANT