CN1115261A - High effective defrother - Google Patents
High effective defrother Download PDFInfo
- Publication number
- CN1115261A CN1115261A CN94112403.7A CN94112403A CN1115261A CN 1115261 A CN1115261 A CN 1115261A CN 94112403 A CN94112403 A CN 94112403A CN 1115261 A CN1115261 A CN 1115261A
- Authority
- CN
- China
- Prior art keywords
- defoamer
- tween
- parts
- product
- high effective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
The efficient defoaming agent is prepared through esterification of polyoxypropyl glyceroether or polyoxypropyl polyoxyethyl glyceroether with C10-C18 fatty acid at 90-150 deg.C for 20-90 min. and then mixed with defoaming aid, disperser and chlorinated wax at 40-50 deg.C for 30-60 min and features strong defoaming power and quick defoaming speed.
Description
The present invention relates to a kind of composition of macromolecular compound.
The defoamer that is used for aqueous medium at present has the polyoxyethyl propyl glycerin ether, and it has a froth breaking group
, the polyoxyethyl propyl polyoxy ethyl glycerin ether that this polyoxyethyl propyl glycerin ether generates with reacting ethylene oxide again, its froth breaking group is
Strengthen to some extent though it has Duoed a froth breaking group froth breaking ability than the former, its component is single, antifoaming speed with press down the bubble ability and all limited to, still do not satisfy the needs of production to high-performance defoamer.
In view of above-mentioned weak point of the prior art, the object of the present invention is to provide a kind of antifoaming speed fast, press down the strong defoaming composition of bubble ability.
Purpose of the present invention can realize by following measure: a kind of high effective antifoaming agent that is used for aqueous medium is characterized in that: it is to help defoamer, 0.5-1.0% dispersant to mix the product that obtained in 30-60 minute at 40-50 ℃ with 20-30% respectively with 5-20%C10-C18 aliphatic acid again at 90-150 ℃ of esterification 20-90 minute products therefrom respectively by 50-60% polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polychlorostyrene ethyl glycerin ether.Preferably helping defoamer is methyl alcohol, ethanol, butanols, ethylene glycol, propane diols and ethyl acetate.Dispersant is emulsifying agent NP, Tween-20, Tween-40, Tween-60, Tween-80 and polyoxyethylene oleic acid ester.Add the 8-16% chlorinated wax in the raw material.
Main body antifoam composition of the present invention is polyoxyethyl propyl glycerine (list) fatty acid ester or polyoxyethyl propyl polyoxy ethyl glycerine (list) fatty acid ester, again with the composition that helps defoamer, dispersant and synergist.Wherein the main body defoamer is that its reaction equation is as follows by the product of polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polyoxy ethyl glycerin ether and C10-C18 aliphatic acid such as esterifications such as capric acid, dodecylic acid, tetradecanoic acid, hexadecanoic acid, octadecanoid acid and oleic acid:
In the formula: R is the C10-C18 alkyl
M is PPOX molal quantity, wherein m=m1+m2+m3
N is PEO molal quantity, wherein n=n1+n2+n3
From reaction equation as can be seen, increase a froth breaking active group in that polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polyoxy ethyl glycerin ether are terminal, itself and the acting in conjunction of original activity group, therefore make antifoaming speed, but the bubble ability all increases substantially.Wherein to be less than 50% above-mentioned reaction incomplete for the consumption of polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polyoxy ethyl glycerin ether, if be higher than 60% then can not generate good, the soluble in water mono-esterification product of antifoam performance.Therefore its consumption is more suitable at 50-60%.The consumption of C10-C18 aliphatic acid is less than 5%, and above-mentioned reaction is incomplete, is two esterifications even three esterification products that solidify attitude if its consumption, then can generate indissoluble water more than 20%.Therefore its consumption is more suitable at 5-20%.Be to improve the antifoam performance of main body defoamer, also add the defoamer that helps with infiltration, pour point depression, viscosity reduction, dispersion and broken bubble effect, it can be alcohols such as methyl alcohol, ethanol, butanols, ethylene glycol, propane diols, also can be ethyl acetate.Its consumption is lower than at 20% o'clock and helps the froth breaking effect undesirable, can water down the main body composition and consumption is higher than at 30% o'clock, influence defoaming effect, so its consumption is more suitable at 20-30%.For further improving the molten aqueous dispersion problem of macromolecule product after the esterification, can add dispersant, it can be emulsifying agent NP, Tweens (T-20,40,60,80) polyoxyethylene oleic acid ester etc., it is not obvious that its consumption is lower than 0.5% peptizaiton, be higher than 1.0 and can water down the main body defoamer and influence defoaming effect, so its consumption is more suitable at 0.5-1.0.Preferably add the synergist chlorinated wax that enhancing presses down the bubble ability again, it is not obvious that its consumption is lower than 8% synergistic effect, and its consumption is higher than 16% can make the final products layering, be emulsion behind the molten water of product, so its consumption is more suitable at 8-16%.
The preparation process of product of the present invention is summarized as follows:
Preparation process of the present invention is mainly divided two sections: i.e. esterification and hybrid modulation.Esterification mainly is the reaction of polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polyoxy ethyl glycerin ether and aliphatic acid.At first get glycerin ether and aliphatic acid in the ratio of afore mentioned rules, they are added in the reaction vessel, under normal pressure at 90-150 ℃ of stirring reaction 20-90 minute, above-mentioned product is cooled to about 50 ℃, the relation according to the above ratio of adding is respectively again got helps defoamer and dispersant, stirred 30-60 minute in 40-50 ℃, what obtain pH value 5-7, density 0.8-1.0 colourlessly is product of the present invention to yellow liquid.Preferably in the said goods, add again and concern the synergist of being got according to the above ratio, get final product after stirring.
Product of the present invention has following advantage compared to existing technology:
1, antifoaming speed is fast, to press down the bubble ability strong, be existing defoamer froth breaking ability 1-2 doubly, use consumption 1-2 that this defoamer can reduce defoamer doubly.
2, the preparation method is simple, product yield is high, does not have the accessory substance and the three wastes to produce.
Example 1
Get 57.4 parts of polyoxyethyl propyl polyoxy ethyl glycerin ethers, 12.5 parts of hexadecanoic acids, they are added in the reactor that has steam jacket.Under stirring condition, be warming up to 120-130 ℃, under this temperature, keep reaction 50 minutes, then product being cooled to 50 ℃ adds 29.4 parts of propane diols again and helps defoamer, 0.7 part of Tween-60 dispersant, stirred 50 minutes in 40-50 ℃, obtain 100 parts of PH=6.0 light yellow liquids, it is product of the present invention.
Example 2
Get 60 parts of polyoxyethyl propyl polyoxy ethyl glycerin ethers, 18.6 parts of decane acid are added to them in the reactor that has steam jacket.Under stirring condition, be warming up to 90-100 ℃, under this temperature, keep reaction 90 minutes, then product being cooled to 50 ℃ adds 20.8 parts of methyl alcohol again and helps defoamer, 0.6 part of emulsifying agent NP dispersant, can obtain 100 parts of PH=5.4 colourless liquids in 30 minutes in 40-50 ℃ of stirring, it is product of the present invention.
Example 3
Get 50 parts of polyoxyethyl propyl glycerin ethers, 20 parts of oleic acid, they are added in the reactor that has whole vapour chuck.Under stirring condition, be warming up to 140-150 ℃, under this temperature, keep reaction 20 minutes, then product being cooled to 50 ℃ adds 20 parts of butanols, 1.0 parts of polyoxyethylene oleic acid esters again, stirred 60 minutes in 40-50 ℃, add 9 parts of chlorinated waxs at last and stir and can obtain 100 parts of PH=5.1 yellow liquids, it is product of the present invention.
Example 4
Get 54.4 parts of polyoxyethyl propyl glycerin ethers, 7.6 parts of tetradecanoic acids, they are added in the reactor that has steam jacket.Under stirring condition, be warming up to 100-110 ℃, under this temperature, keep reaction 60 minutes, then product is cooled to 50 ℃ and adds 25.3 parts of ethylene glycol, 0.7 part of Tween-40 again, stirred 50 minutes in 40-50 ℃, add 12 parts of chlorinated waxs at last, stirring to obtain 100 parts of PH=5.5 yellow liquids, and it is product of the present invention.
Example 5
Get polyoxyethyl propyl polyoxy ethyl glycerin ether, 56.5 parts of octadecanoid acids, they are added in the reactor that has steam jacket.Under stirring condition, be warming up to 140-150 ℃, under this temperature, keep reaction 40 minutes, then product is cooled to 50 ℃ and adds 30 parts of ethyl acetate, 0.5 part of Tween-80 again, stirred 50 minutes in 40-50 ℃, add 8 parts of cured stirring of chlorination at last and obtain 100 parts of PH=6.9 yellow liquids, it is product of the present invention.
Example 6
Get 50.1 parts of polyoxyethyl propyl polyoxy ethyl glycerin ethers, 10.3 parts of dodecylic acids, they are added in the reactor that has steam jacket.Under stirring condition, be warming up to 90-100 ℃, under this temperature, keep reaction 70 minutes, then product being cooled to 50 ℃ adds 23 parts of ethanol, 0.6 part of Tween-20 again, stirred 40 minutes in 40-50 ℃, add 16 parts of cured stirring of chlorination at last again, obtain 100 parts of PH=5.8 colourless liquids, it is product of the present invention.Annotate: the percentage in the present specification when umber is the weight number.Table 1 defoamer of the present invention with both at home and abroad with defoamer antifoaming speed test data of experiment contrast table
Table 2 defoamer of the present invention and like product basic property and economic benefit comparison sheet unit: unit/ton
| The defoamer title | Basic property relatively | The economic benefit initial analysis relatively | |||||
| Outward appearance | Molten water-based | The speed defoaming | Press down bubble property | Cost of material | Sale price | Economic benefit (unit/ton) | |
| Defoamer of the present invention | Colourless to yellow transparent liquid | Molten water-based can be regulated | Hurry up | Excellent | 7.000-9.000 | ?12.000 ??—— ?15.000 | ????20.000-4.000 |
| The polyoxyethyl propyl glycerin ether | ???″ ???????″ | Insoluble in water | Slowly | Difference | 8.000-9.000 | ?10.000 ??—— ?11.000 | 1.000 about unit |
| Polyoxyethyl propyl polyoxy ethyl glycerin ether | ???″ ?????″ | Water-soluble | Slower | Can | ?″ | ?12.000 ??—— ?14.000 | 2.000 about unit |
| Organosilicon | ???″ ?????″ | Insoluble in water | Hurry up | Excellent | ?30.000 ??—— ?40.000 | ||
| The oil-in-water type organosilicon | Milky white liquid | Water-soluble | Comparatively fast | Very | ?13.000 ??—— ?20.000 | ||
Claims (4)
1, a kind of high effective antifoaming agent that is used for aqueous medium is characterized in that: it is to help defoamer, 0.5～1.0 dispersant to mix the product that obtained in 30-60 minute at 40-50 ℃ with 20-30% respectively with 5-20%C10-C18 aliphatic acid again at 90-150 ℃ of esterification 20-90 minute products therefrom respectively by 50-60% polyoxyethyl propyl glycerin ether or polyoxyethyl propyl polyoxy ethyl glycerin ether.
2, high effective antifoaming agent according to claim 1 is characterized in that: helping defoamer is methyl alcohol, ethanol, butanols, ethylene glycol, propane diols and ethyl acetate.
3, high effective antifoaming agent according to claim 1 and 2 is characterized in that: dispersant is emulsifying agent NP, Tween-20, Tween-40, Tween-60, Tween 80 and polyoxyethylene oleic acid ester.
4, high effective antifoaming agent according to claim 3 is characterized in that: add the 8-16% chlorinated wax in the raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94112403.7A CN1115261A (en) | 1994-07-16 | 1994-07-16 | High effective defrother |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94112403.7A CN1115261A (en) | 1994-07-16 | 1994-07-16 | High effective defrother |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1115261A true CN1115261A (en) | 1996-01-24 |
Family
ID=5036087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94112403.7A Pending CN1115261A (en) | 1994-07-16 | 1994-07-16 | High effective defrother |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1115261A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878224A1 (en) * | 1997-05-17 | 1998-11-18 | Th. Goldschmidt AG | Defoaming compositions for polymer dispersions and aqueous coating compositions |
| CN101664655B (en) * | 2009-09-10 | 2011-11-16 | 沧州信昌化工有限公司 | Composite silicon-free defoamer |
| CN106565128A (en) * | 2016-10-21 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Polyester ether antifoaming agent, and preparation method and application thereof |
| CN106799070A (en) * | 2016-12-28 | 2017-06-06 | 广东中联邦精细化工有限公司 | A kind of special defoamer of rubber |
| CN110152357A (en) * | 2019-07-03 | 2019-08-23 | 云南祺华科技有限公司 | A kind of phosphoric acid extraction production defoaming agent and preparation method thereof |
| CN111530129A (en) * | 2020-04-02 | 2020-08-14 | 南京德俊新材料科技有限公司 | Special defoaming agent for processing phosphoric acid, boric acid and titanium dioxide and preparation method thereof |
-
1994
- 1994-07-16 CN CN94112403.7A patent/CN1115261A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878224A1 (en) * | 1997-05-17 | 1998-11-18 | Th. Goldschmidt AG | Defoaming compositions for polymer dispersions and aqueous coating compositions |
| CN101664655B (en) * | 2009-09-10 | 2011-11-16 | 沧州信昌化工有限公司 | Composite silicon-free defoamer |
| CN106565128A (en) * | 2016-10-21 | 2017-04-19 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Polyester ether antifoaming agent, and preparation method and application thereof |
| CN106799070A (en) * | 2016-12-28 | 2017-06-06 | 广东中联邦精细化工有限公司 | A kind of special defoamer of rubber |
| CN110152357A (en) * | 2019-07-03 | 2019-08-23 | 云南祺华科技有限公司 | A kind of phosphoric acid extraction production defoaming agent and preparation method thereof |
| CN111530129A (en) * | 2020-04-02 | 2020-08-14 | 南京德俊新材料科技有限公司 | Special defoaming agent for processing phosphoric acid, boric acid and titanium dioxide and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102600647B (en) | Method for preparing stable aliphatic emulsion | |
| CN101991975B (en) | Mineral oil defoaming agent and preparation method thereof | |
| CN103641195B (en) | A kind of silicone antifoam agent and preparation method thereof | |
| CN101456813A (en) | Method for synthesizing polyatomic alcohol fatty acid ester | |
| CN102895805B (en) | The preparation method of non-silicon defoaming agent | |
| CN106178610A (en) | A kind of higher alcohols emulsified antifoam agent and preparation method thereof | |
| CN102489049A (en) | Mineral oil type antifoaming agent and preparation method thereof | |
| CN1115261A (en) | High effective defrother | |
| CN101158131A (en) | Defoaming agent for linerboard paper making | |
| CN102558937A (en) | Economical coating antifoaming agent | |
| CA1227101A (en) | Microemulsions | |
| CN101085420A (en) | Preparation method of nonionic surfactant polyethylene glycol phthalate | |
| CN101374599A (en) | Alkaline earth-based alkoxylation catalysts | |
| CN101690857A (en) | Natural high class fatty alcohol emulsion and preparation method thereof | |
| Zhou et al. | Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent | |
| CN104355994A (en) | Aryl alkyl polyol ester and preparation method and application thereof | |
| CN115926679A (en) | Preparation process of composite floor formaldehyde-free adhesive | |
| KR20010053048A (en) | Liquid Thickener for Surfactant Systems | |
| Doll et al. | Synthesis and performance of surfactants based on epoxidized methyl oleate and glycerol | |
| CN101733039A (en) | High-grade fatty alcohol emulsion and preparation method thereof | |
| CN104945606B (en) | A kind of preparation method of Polyester Defoamer | |
| CN107400230A (en) | A kind of high efficient cryogenic petroleum demulsifier and preparation method | |
| CN110694305A (en) | Defoaming agent and preparation method thereof | |
| JPS6116484B2 (en) | ||
| CN207159122U (en) | A kind of aliphatic acid is the device of raw material continuous production fatty acid alkanol amides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |