CN103041623B - High-efficiency organic silicon defoaming agent - Google Patents
High-efficiency organic silicon defoaming agent Download PDFInfo
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- CN103041623B CN103041623B CN201210582943.0A CN201210582943A CN103041623B CN 103041623 B CN103041623 B CN 103041623B CN 201210582943 A CN201210582943 A CN 201210582943A CN 103041623 B CN103041623 B CN 103041623B
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- defoaming agent
- silicone oil
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Abstract
The invention discloses a high-efficiency organic silicon defoaming agent and belongs to the technical field of fine chemical engineering. The defoaming agent consists of the following components in part by weight: 50 to 90 parts of mixture of hydroxyl silicone oil and 201 silicone oil, 2 to 15 parts of gaseous phase white carbon black, 2 to 12 parts of condensation compound of fatty alcohol and ethylene oxide, 1 to 6 parts of modified nonionic surfactant, 1 to 10 parts of allyl alcohol polyoxyl alkyl ether, 1 to 8 parts of propylene glycol block polyether, 3 to 20 parts of sorbitol anhydride monostearate, 3 to 20 parts of dehydrated sorbitol monostearate polyoxyl vinethene and 10 to 30 parts of water. The defoaming agent has the characteristics of high defoaming speed, strong foam inhibiting ability, no toxicity, high adaptability, small using amount and the like.
Description
Technical field
The present invention relates to a kind of silicone antifoaming agent and preparation method thereof, belong to fine chemical technology field.
Background technology
Defoamer is the surfactant for suppressing and eliminate various harmful foams, is the chemical method of the most effectively controlling foam, is widely used in the fields such as chemical industry, medicine, weaving, printing and dyeing, ore dressing, coating, ink and sewage disposal.In industrial production, foam can bring harm such as reducing production capacity, wastage of material, Quality Down, causes adverse effect to producing.Current commercially available defoamer specific aim is stronger, and defoaming effect is not bery desirable.External defoamer better performances, but expensive, be difficult to realize at home large-scale promotion.
CN101053801A discloses a kind of Polyether Modified Polysiloxanes Defoaming Agent composition, CN102284198A discloses a kind of water soluble polyether modified organo-silicon defoamer and preparation and preparation method, CN102527096A discloses the tree-shaped polyether group of grafting and composite silicone defoaming agent on a kind of organosiloxane main chain, and CN102343165A discloses a kind of silicone defoaming agent that mainly comprises silicone grease mixture interpolation polyether silicone oil, thickener and anticorrisive agent isoreactivity thing.But the technological process complexity of above bibliographical information, production cost are large, be unfavorable for promoting.Outstanding defoamer must be taken into account froth breaking simultaneously, press down a bubble effect, and production technology is simple and feasible.
Summary of the invention
The object of the present invention is to provide a kind of froth breaking, press down that bubble ability is strong, the silicone antifoaming agent of good stability, another object is to provide its preparation method, is convenient to suitability for industrialized production.
Silicone antifoaming agent of the present invention, is prepared from by following component: in weight portion: the mixture of 50～90 parts of hydroxy silicon oils and 201 silicone oil, 2～15 parts of gas-phase silicas, 2～12 parts of fatty alcohols and ethylene oxide condensate, 1～6 portion of modification non-ionic surface active agent, 1～10 part of allyl alcohol polyoxy alkyl ether, 1～8 part of propylene glycol block polyether, 3～20 parts of sorbitan monostearates, 3～20 parts of Arlacel-60 APEOs and 10～30 parts of water.
Hydroxy silicon oil is that end group is the linear dimethyl silicone polymer of hydroxyl, structural formula HO[(CH
3)
2siO]
nh, n=5～11; Preferably KF-96.
Specific area>=the 175m of gas-phase silica
2/ g, preferably 200～300 m
2/ g;
Fatty alcohol and ethylene oxide condensate are dispersant IW;
Modification non-ionic surface active agent is for disperseing solubilizer S;
Allyl alcohol polyoxy alkyl ether is polyethers F-6, as reaction synergist;
Propylene glycol block polyether is a kind of in polyethers F38, F68, as reaction synergist;
Its preparation method is as follows: in reactor, add the mixture of hydroxy silicon oil and 201 silicone oil, be warmed up to 200 DEG C, start agitator, add gas-phase silica, stir and make the abundant homogenizing of two materials, be warming up to 250 DEG C, drop into remaining all materials, add suitable quantity of water, insulation reaction 2 hours, be cooled to 100 DEG C, add again suitable quantity of water, stir nature and cool to 80 DEG C, stir bottom discharge.
Compared with prior art, the beneficial effect of silicone defoaming agent of the present invention is: in defoamer, use methyl-silicone oil and hydroxyl silicone oil component simultaneously, introduce dispersant IW and disperse solubilizer S, and reaction synergist, make product of the present invention have good compatibility, antifoaming speed is fast, stable performance, adaptability is good, consumption is few; Small investment of the present invention, is convenient to suitability for industrialized production.
Detailed description of the invention
Set forth the present invention with specific embodiment below, but embodiment is not limited to its scope.
Embodiment 1
In stainless steel electric heating reacting kettle, add the KF-96 of 50g, 201 silicone oil of 20g, be warmed up to 200 DEG C, start agitator (120r/min), add 5g gas-phase silica, stir and within 30 minutes, make the abundant homogenizing of two materials, be warming up to 250 DEG C, add 8g dispersant IW, 3g disperses solubilizer S, 5g polyethers F-6, 4g polyethers F68, 12g sorbitan monostearate (Span60), 12g Arlacel-60 APEO (Tween60), add again 5g water, insulation reaction 2 hours, be cooled to 100 DEG C, add again 15g water, stir nature and cool to 80 DEG C, stir bottom discharge.
Embodiment 2
In stainless steel electric heating reacting kettle, add the KF-96 of 25g, 201 silicone oil of 55g, be warmed up to 200 DEG C, start agitator (120r/min), add 4g gas-phase silica, stir and within 30 minutes, make the abundant homogenizing of two materials, be warming up to 250 DEG C, add 6g dispersant IW, 4g disperses solubilizer S, 8g polyethers F-6, 5g polyethers F38, 7g sorbitan monostearate (Span60), 7g Arlacel-60 APEO (Tween60), add 8g water, insulation reaction 2 hours, be cooled to 100 DEG C, add again 12g water, stir nature and cool to 80 DEG C, stir bottom discharge.
Embodiment 3
In stainless steel electric heating reacting kettle, add the KF96 of 40g, 201 silicone oil of 40g, be warmed up to 200 DEG C, start agitator (120r/min), add 3g gas-phase silica, stir and within 30 minutes, make the abundant homogenizing of two materials, be warming up to 250 DEG C, add 9g dispersant IW, the dispersion solubilizer S of 5g, 7g polyethers F-6, 6g polyethers F68, 8g sorbitan monostearate (Span60), 8g Arlacel-60 APEO (Tween60), add 12g water, insulation reaction 2 hours, be cooled to 100 DEG C, add again 10g water, stir nature and cool to 80 DEG C, stir bottom discharge.
Defoamer performance test:
Testing equipment: circulating pump (bubbling device)
Probe temperature: 25 DEG C
(1) antifoam performance test:
To the sodium dodecyl benzene sulfonate aqueous solution that adds 200mL concentration 0.5% in the graduated cylinder of 1000mL, start circulating pump bubbling to certain altitude, add a certain amount of certain density defoamer of the present invention, record foam and be down to another time highly used from a certain height, repeat to test three times, average, be the foam time of this defoamer.
(2) suds suppressing properties test:
To the sodium dodecyl benzene sulfonate aqueous solution and a certain amount of certain density defoamer of the present invention that add 200mL concentration 0.5% in the graduated cylinder of 1000mL, start the circulating pump continuous bubbling that remains a constant speed, record foam and rise to another time highly used from a certain height, repeat to test three times, average, be pressing down the bubble time of this defoamer.
Result of the test sees the following form.
Note: keep 25 DEG C of constant temperature in test, pH value=7.
From table, test result can be found out, froth breaking, suds suppressing properties and the external product of defoamer of the present invention are suitable, and overall performance is much better than domestic existing product performance.
Claims (1)
1. a silicone antifoaming agent, it is characterized in that, be prepared from by following component: the mixture of 50～90 parts of hydroxy silicon oils and 201 silicone oil, 2～15 parts of gas-phase silicas, 2～12 parts of fatty alcohols and ethylene oxide condensate, 1～6 portion of modification non-ionic surface active agent, 1～10 part of allyl alcohol polyoxy alkyl ether, 1～8 part of propylene glycol block polyether, 3～20 parts of sorbitan monostearates, 3～20 parts of Arlacel-60 APEOs and 10～30 parts of water, each component is in weight portion;
Described hydroxy silicon oil is that end group is the linear dimethyl silicone polymer of hydroxyl, structural formula HO[(CH
3)
2siO]
nh, n=5～11; Specific area>=the 175m of described gas-phase silica
2/ g; Described fatty alcohol and ethylene oxide condensate are dispersant IW; Described modification non-ionic surface active agent is for disperseing solubilizer S; Described allyl alcohol polyoxy alkyl ether is polyethers F-6; Described propylene glycol block polyether is a kind of in polyethers F38, F68.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582943.0A CN103041623B (en) | 2012-12-28 | 2012-12-28 | High-efficiency organic silicon defoaming agent |
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| CN201210582943.0A CN103041623B (en) | 2012-12-28 | 2012-12-28 | High-efficiency organic silicon defoaming agent |
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| Publication Number | Publication Date |
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| CN103041623A CN103041623A (en) | 2013-04-17 |
| CN103041623B true CN103041623B (en) | 2014-10-29 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550960B (en) * | 2013-11-18 | 2015-09-02 | 中国科学院新疆理化技术研究所 | A kind of synthetic method of propylene glycol block polyether modified organic silicon Compounded Antifoamer |
| CN103666419B (en) * | 2013-12-04 | 2015-12-09 | 天津宁赛科技有限公司 | A kind of oil well cement composite organic defoamer |
| 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 |
| CN104162294A (en) * | 2014-07-21 | 2014-11-26 | 江苏国平油品科技有限公司 | Micro bubble remover and preparation method thereof |
| CN104179070A (en) * | 2014-08-20 | 2014-12-03 | 顾咏亮 | Preparation method of organic silicon defoamer |
| CN105525516A (en) * | 2016-01-28 | 2016-04-27 | 上海氟聚化学产品有限公司 | Antibacterial defoaming agent |
| CN106215468A (en) * | 2016-08-29 | 2016-12-14 | 枣阳市金鹏化工有限公司 | A kind of silicone antifoaming agent and preparation method thereof |
| CN106178611A (en) * | 2016-08-30 | 2016-12-07 | 句容宁武高新技术发展有限公司 | High effective antifoaming agent and preparation method thereof |
| CN106867482A (en) * | 2016-12-27 | 2017-06-20 | 广东中联邦精细化工有限公司 | A kind of special defoamer in oil field |
| CN110314417B (en) * | 2019-07-10 | 2021-04-20 | 广东省科学院产业技术育成中心 | Organic silicon defoaming agent |
| CN110950396A (en) * | 2019-11-29 | 2020-04-03 | 湖北新四海化工股份有限公司 | Defoaming agent for landfill leachate and preparation method |
| CN114307262B (en) * | 2022-01-11 | 2023-05-26 | 江西蓝星星火有机硅有限公司 | Defoaming agent for steam boiler and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657147A (en) * | 2005-01-05 | 2005-08-24 | 长春理工大学 | Organic silicon ether defoaming agent for food processing |
| CN102527096A (en) * | 2011-05-12 | 2012-07-04 | 湖北新四海化工股份有限公司 | Organic silicon defoaming agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3944690B2 (en) * | 2001-07-11 | 2007-07-11 | 信越化学工業株式会社 | Antifoam composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657147A (en) * | 2005-01-05 | 2005-08-24 | 长春理工大学 | Organic silicon ether defoaming agent for food processing |
| CN102527096A (en) * | 2011-05-12 | 2012-07-04 | 湖北新四海化工股份有限公司 | Organic silicon defoaming agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-24708A 2003.01.28 |
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