CN102491679B - Method for preparing defoamer for cement mortar containing rubber emulsion - Google Patents
Method for preparing defoamer for cement mortar containing rubber emulsion Download PDFInfo
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- CN102491679B CN102491679B CN 201110404707 CN201110404707A CN102491679B CN 102491679 B CN102491679 B CN 102491679B CN 201110404707 CN201110404707 CN 201110404707 CN 201110404707 A CN201110404707 A CN 201110404707A CN 102491679 B CN102491679 B CN 102491679B
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Abstract
The invention relates to an organic silicon defoamer. The organic silicon defoamer comprises the following main materials in part by weight: 10 parts of dimethicone, 2 parts of hydroxyl silicone oil, 3 parts of polyether silicone oil and 1 to 5 parts of precipitated silicon dioxide. The method comprises the following steps of: preparing three kinds of silicone oil and the precipitated silicon dioxide by a three-roller grinding machine at the temperature of between 140 and 200 DEG C to obtain silicon paste; and adding the silicon paste and an emulsifier (1 to 3 parts of Tween 80, 1 to 3 parts of spunray and 1 part of spandex (OP)) into a stirring kettle, adding 30 to 50 parts of water while stirring, and stirring uniformly for half an hour to prepare uniform emulsion serving as the organic silicon defoamer. The invention has the advantages that the organic silicon defoamer can be used for the preparation and using process of the cement mortar which is used for construction and contains the rubber emulsion, has high defoaming and foam breaking capacity, can improve the breaking speed of air bubbles and reduce the generation quantity of the air bubbles, and has high compatibility and stability.
Description
Technical field
The present invention relates to the anticorrosion waterproof of buildings or structures, use the sand-cement slurry preparation that contains rubber latex and use the effective froth breaking of needs.
Background technology
Defoamer take type siloxane as base material is the desirable defoamer of a class in the antifoaming system, is exactly because it is water insoluble, and more difficult emulsification can run into the problems such as layering in therefore using.This defoamer is foremost to be German BYK company, produce various silicone based defoamers, but price is very high.Domestic a lot of enterprises produce silicone antifoam agent and still have the undesirable problem of froth breaking, be used in the sand-cement slurry that contains rubber latex, because of the effect froth breaking of the tensio-active agent that exists in original system slow.
Summary of the invention
The invention provides a kind of sand-cement slurry that contains rubber latex making method of defoamer
Production technique of the present invention can be divided into two portions: first part makes silicon cream, be that the main raw material composition comprises dimethyl silicone oil, hydroxy silicon oil, polyether silicone oil, precipitated silica, more than various parts by weight be followed successively by 10 parts, 2 parts, 3 parts, 1-5 part, by three-roll grinder three kinds of silicone oil and precipitated silica are made silicon cream at 140-200 ℃ first during configuration, add silicon cream and emulsifying agent (tween 80: 1-3 part at stirring tank, this this 60:1-3 part and OP4:1 part), add while stirring water 30-50 part, uniform stirring half an hour, make homogeneous latex emulsion and be silicone antifoam agent.Wherein methyl-silicone oil viscosity is that 0.5-1Pas, hydroxy silicon oil viscosity are that 2-3Pas, polyether silicone oil viscosity are 0.5-1Pas.Beneficial effect of the present invention is: can be used for preparation and the use procedure of rubber latex sand-cement slurry for building, have extremely strong deaeration and broken bubble ability, can improve the speed of abolishing of bubble, the generation of reduction bubble, have simultaneously preferably consistency and stability.Take rubber latex (this experiment adopt styrene-butadiene latex an amount of) sand-cement slurry (cement: sand=200: 100) add unit weight behind the defoamer as judging criterion, the container 100mg used according to this experiment, unit weight can make the indices of rubber latex sand-cement slurry be up to state standards more than the 220g.
Embodiment
Being described below with chart is exemplary of the present invention, but does not limit to this several schemes.
First part makes silicon cream, be that the main raw material composition comprises dimethyl silicone oil, hydroxy silicon oil, polyether silicone oil, precipitated silica, more than various parts by weight be followed successively by 10 parts, 2 parts, 3 parts, 1-5 part, by three-roll grinder three kinds of silicone oil and precipitated silica are made silicon cream at 140-200 ℃ first during configuration.Second section is to add silicon cream and emulsifying agent (tween 80: 1-3 part, this this 60:1-3 part and OP4:1 part) at stirring tank, and 80 ℃ of temperature add water 30-50 part while stirring, uniform stirring half an hour, makes homogeneous latex emulsion and is silicone antifoam agent.Wherein methyl-silicone oil viscosity is that 0.5-1Pas, hydroxy silicon oil viscosity are that 2-3Pas, polyether silicone oil viscosity are 0.5-1Pas.OP4 is alkylphenol polyoxyethylene.
Concrete raw material, emulsifying agent dosage, amount of water and the sand-cement slurry unit weight that contains rubber latex see the following form:
Claims (2)
1. silicone antifoam agent, it is characterized in that the main raw material composition comprises dimethyl silicone oil, hydroxy silicon oil, polyether silicone oil, precipitated silica, more than various parts by weight be followed successively by 10 parts, 2 parts, 3 parts, 1-5 part, during preparation, first three kinds of silicone oil and precipitated silica are made silicon cream with three-roll grinder at 140-200 ℃, then, in stirring tank, add silicon cream and the emulsifying agent of making, emulsifying agent consists of tween 80: 1-3 part, this this 60:1-3 part and OP4:1 part, add while stirring water 30-50 part, uniform stirring half an hour, make homogeneous latex emulsion and be silicone antifoam agent.
2. silicone antifoam agent as claimed in claim 1, wherein, methyl-silicone oil viscosity is that 0.5-1Pas, hydroxy silicon oil viscosity are that 2-3Pas, polyether silicone oil viscosity are 0.5-1Pas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110404707 CN102491679B (en) | 2011-12-02 | 2011-12-02 | Method for preparing defoamer for cement mortar containing rubber emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110404707 CN102491679B (en) | 2011-12-02 | 2011-12-02 | Method for preparing defoamer for cement mortar containing rubber emulsion |
Publications (2)
| Publication Number | Publication Date |
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| CN102491679A CN102491679A (en) | 2012-06-13 |
| CN102491679B true CN102491679B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110404707 Active CN102491679B (en) | 2011-12-02 | 2011-12-02 | Method for preparing defoamer for cement mortar containing rubber emulsion |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111100B (en) * | 2013-01-24 | 2015-02-11 | 中昊晨光化工研究院有限公司 | Silicon emulsion defoamer composition as well as preparation method and application thereof |
| CN103877755B (en) * | 2014-03-11 | 2016-03-02 | 苏州恒康新材料有限公司 | A kind of silicone defoaming agent and preparation method thereof |
| CN103866562B (en) * | 2014-04-01 | 2016-02-10 | 许昌恒源发制品股份有限公司 | Hair products pre-treatment defoamer and preparation method thereof |
| CN105944406B (en) * | 2016-06-15 | 2017-12-19 | 广州嘉德乐生化科技有限公司 | A kind of food defoamer |
| CN108905305A (en) * | 2018-09-18 | 2018-11-30 | 湖北兴瑞硅材料有限公司 | Organic silicon defoamer and preparation method thereof |
| CN109516716A (en) * | 2018-12-03 | 2019-03-26 | 苏州市兴邦化学建材有限公司 | A kind of defoaming agent and production method improving cement-based self-leveling mortar surface state |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010047426A (en) * | 2008-08-19 | 2010-03-04 | Sumitomo Metal Mining Siporex Kk | Frost damage resistance improver and method for producing mortar or concrete with frost damage resistance |
| CN101580355B (en) * | 2009-06-26 | 2011-06-15 | 郭元华 | Water-based organic silicon waterproof agent |
| CN102049153A (en) * | 2009-10-30 | 2011-05-11 | 成都海旺科技有限责任公司 | Preparation method for defoamer special for spinning |
| CN102051821A (en) * | 2009-10-30 | 2011-05-11 | 成都海旺科技有限责任公司 | Method for preparing textile sizing defoaming agent |
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| CN102491679A (en) | 2012-06-13 |
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Address after: 116023 Dalian high tech park, Liaoning, No. 201 Huangpu Road Patentee after: Zhonghao (Dalian) Chemical Research and Design Institute Co., Ltd. Address before: 116023 Dalian high tech park, Liaoning, No. 201 Huangpu Road Patentee before: Dalian Chemical Research &. Design Inst. |