Defoaming agent for transparent liquid detergent

Abstract

The invention provides a defoaming agent for a transparent liquid detergent. The defoaming agent is characterized in that: the defoaming agent includes (1) 5-40% of an organosilicon active component,(2) 10-80% of polyether modified polysiloxane having a specific spatial structure, (3) 10-80% of polyether polyol and (4) 1-10% of silicon dioxide; a preparation method comprises (1) mixing the organosilicon active component with polyether modified polysiloxane having a specific spatial structure, heating the mixture to 50-150 DEG C, and stirring the mixture for 0.5-1.5 hours at the rotating speedof 100-600 rpm, (2) keeping the temperature unchanged, adding the polyether polyol and hydrophobic white carbon black under stirring, and stirring the mixture for 1.0-2.0 hours at the rotating speedof 100-600 rpm, and (3) homogenizing the mixture through a colloid mill or a homogenizer to obtain the defoaming agent. The defoaming agent has relatively strong defoaming and foam inhibition effects,has relatively strong stability, and can ensure that clarity and stability of the detergent are not influenced.

Description

technical field [0001] The present discovery provides a defoamer for transparent liquid detergents, which has strong defoaming and foam-suppressing effects. The defoamer not only has strong stability itself, but also can ensure that the clarity and stability in detergents are not affected, and belongs to the technical field of fine chemicals. Background technique [0002] Liquid detergent has the characteristics of easy dissolution, convenient use, low production energy consumption, less equipment investment, low cost, and energy saving. It has gradually replaced solid detergent. Because liquid washing contains a large amount of surfactant, it produces a large amount of foam during use, which not only increases the number of subsequent rinses, wastes water resources, but also increases electricity and use costs. In order to make detergents develop in the direction of energy saving, water saving, functionalization and greening, it is imperative to control the foam generated ...

AI Technical Summary

Problems solved by technology

[0005] CN103272411B relates to a silicone emulsion foam inhibitor and a preparation method thereof. Under the action of an acidic catalyst, hydrogen-containing polyorganosiloxane, unsaturated polyether and α-olefin are used to obtain alkyl and unsaturated polyether co-modified polymer Organosiloxane; then add hydrophobic particles and mix with silicone resin, and the obtained foam suppressor active ingredient is then used as an emulsifier to prepare an O / W type defoamer emulsion, which is added to a non-structural detergent, although it can Solve the attenuation of clarity and anti-foaming performance, but the problem of anti-foaming agent precipitation will still occur after long-term storage

Although it has excellent clarity and stability in liquid detergents, and has a relatively ideal foam control effect with a small amount of addition, the defoamer in its preparation process needs to pass through a colloid mill, which is difficult to avoid The problem of attenuation of antifoam performance after high temperature and strong shear treatment

[0008] In summary, it is difficult for non-organic silicon defoamers to exhibit excellent foam control effects in liquid detergents. Traditional silicone emulsion defoamers have problems with their own stability and stability in non-structural laundry detergents. The inventive bulk silicone defoamer has the problems of affecting the turbidity of liquid detergent and the attenuation of antifoaming performance

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