CN107982963A - A kind of modified organic silicon defoamer, defoaming agent composition and preparation method thereof - Google Patents
A kind of modified organic silicon defoamer, defoaming agent composition and preparation method thereof Download PDFInfo
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- CN107982963A CN107982963A CN201711287639.2A CN201711287639A CN107982963A CN 107982963 A CN107982963 A CN 107982963A CN 201711287639 A CN201711287639 A CN 201711287639A CN 107982963 A CN107982963 A CN 107982963A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
- B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
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Abstract
The invention discloses a kind of modified organic silicon defoamer, defoaming agent composition and preparation method thereof, which includes the raw material of following parts by weight：70~85 parts of 10~20 parts of silicon cream, 10~15 parts of Pluronic PE 6800,2~5 parts of surfactant, 1.5~3 parts of thickener and water.The present invention is by modified organic silicon defoamer, and obtained defoamer defoaming is rapid, suds are lasting, cost-effective, good dispersion；Defoamer high temperature resistant, acid and alkali-resistance, electrolyte-resistant, the resistant to shearing, it is good with the various compatbilities of dyestuff, not floating oil, no silicon spot, safe and non-toxic, meets environmental requirement, and stable quality, and viscosity and concentration are suitable, easy to use and dilution etc..
Description
Technical field
The present invention relates to defoaming technology field, in particular to a kind of modified organic silicon defoamer, defoaming agent composition
And preparation method thereof.
Background technology
In fabric finishing each operation, blistering is a problem during refining, bleaching, dyeing and arrangement.Spin at present
Knit dyeing the quality requirement of anti-foam product is continuously improved, it is desirable to which defoamer has in wide pH value with a temperature of to be stablized
Property, and it is resistant to high shear, lasting defoaming and suds.Defoamer is various from natural materials to synthetic species, wherein with polyethers
The performance comparative superiority of this two class of class and organic silicon, has a wide range of application.Organic silicon type defoamer is less toxic, anti-oxidant, brokenly bubble energy
Power is strong, but its suds ability is relatively low, thus consumption is big.And although the defoamer suds ability of polyethers is strong, brokenly bubble speed
Rate is low.
The content of the invention
In view of this, a kind of modified organic silicon defoamer provided by the invention, defoaming agent composition and preparation method thereof, more
Good overcomes the above-mentioned problems of the prior art and defect, and the present invention is by modified organic silicon defoamer, obtained defoaming
Agent defoaming is rapid, suds are lasting, cost-effective, good dispersion；Defoamer high temperature resistant, acid and alkali-resistance, electrolyte-resistant, the resistant to shearing,
It is good with the various compatbilities of dyestuff, not floating oil, no silicon spot, safe and non-toxic, meets environmental requirement, and stable quality, viscosity and
Concentration is suitable, easy to use and dilution etc..
A kind of modified organic silicon defoamer, includes the raw material of following parts by weight：10~20 parts of silicon cream, EO/PO blocks are total to
70~85 parts of 10~15 parts of polymers, 2~5 parts of surfactant, 1.5~3 parts of the first thickener and water.
Further, the modified organic silicon defoamer also includes the raw material of following parts by weight：Fungicide 0.1~0.3
Part.
Further, the surfactant is fatty acid sorbitan, polysorbate, polyethylene glycol methanesulfonic acid, fatty alcohol
One or more in polyoxyethylene ether, polyoxyl 40 stearate and fatty acid glyceride.
Further, first thickener is one kind in carboxycellulose, xanthans and polyacrylate.
Further, the fungicide is a kind of a variety of in glutaraldehyde, silver oxide, zinc oxide and magnesia.
Present invention also offers a kind of preparation method of modified organic silicon defoamer, the modified organic silicon defoamer is upper
The modified organic silicon defoamer stated；The preparation method includes：
First surfactant and the first thickener are added to the water, are uniformly mixed at 60~80 DEG C；Then add silicon cream,
Pluronic PE 6800, mixes at 60~80 DEG C；40~50 DEG C are cooled to again, add remaining water or remaining water and fungicide
It is uniformly mixed.
Present invention also offers a kind of defoaming agent composition, the raw material of following parts by weight is included：Modified organic silicon defoams
90~100 parts of agent, 10~20 parts of levelling agent, 0.2~0.3 part of the second thickener, 0.01~0.05 part of preservative and water 45~55
Part；The modified organic silicon defoamer is above-mentioned modified organic silicon defoamer.
Further, the levelling agent is α-[3- [1,3,3,3- tetramethyl -1- (trimethyl silicon substrate-oxo) two silica
Alkane]-propyl group-ω-hydroxyl polyoxyethylene) or dimethyl -3- hydroxypropyl-methyls ethoxyquin, the third oxidation (siloxanes and poly- silica
Alkane)；Dimethyl -3- hydroxypropyl-methyls the ethoxyquin, the viscosity of the third oxidation (siloxanes and polysiloxanes) for 500~
4000mm2/s。
Further, second thickener is xanthans or modified polyacrylate；The preservative is Kathon CG.
Present invention also offers a kind of preparation method of defoaming agent composition, the defoaming agent composition is above-mentioned defoaming
Agent composition, the preparation method include：
First the second thickener is added to the water uniformly mixed, adds modified organic silicon defoamer, levelling agent and preservative
It is uniformly mixed.
Compared with prior art, a kind of modified organic silicon defoamer of the invention, defoaming agent composition and preparation method thereof
Beneficial effect be：
The present invention by modified organic silicon defoamer, obtained defoamer defoaming is rapid, suds are lasting, it is cost-effective, point
It is good to dissipate property；Defoamer high temperature resistant, acid and alkali-resistance, electrolyte-resistant, the resistant to shearing, it is good with the various compatbilities of dyestuff, not floating oil, no silicon
Spot, it is safe and non-toxic, meet environmental requirement, and stable quality, viscosity and concentration are suitable, easy to use and dilution etc..
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, makees detailed
It is described as follows.
Embodiment
For the ease of understanding the present invention, elaborate with reference to the mode of embodiment to technical scheme,
Many details are elaborated in the following description in order to fully understand the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can be with
Similar improvement is done in the case of without prejudice to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all technologies used herein and scientific terminology have and the common skill of fields of the present invention
The normally understood identical implication of art personnel.When there is a conflict, the definition in this specification shall prevail.
Term as used herein：
Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that covering
Non-exclusionism includes.Wanted for example, composition, step, method, product or device comprising listed elements are not necessarily limited to those
Element, but can include not expressly listed other key elements or such a composition, step, method, product or device it is intrinsic
Key element.
Conjunction " by ... form " exclude any key element do not pointed out, step or component.If be used in claim,
This phrase will make claim be closed, it is not included the material in addition to the material of those descriptions, but relative
Except customary impurities.When phrase " by ... form " be rather than immediately following theme in the clause that appears in claim main body after
When, it is only limited to the key element described in the clause；Other key elements be not excluded the claim as a whole it
Outside.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value limits, this, which is appreciated that, specifically discloses by any range limit or preferred value and any scope
All scopes that any pairing of lower limit or preferred value is formed, regardless of whether the scope separately discloses.For example, when open
Scope " when 1~5 ", described scope should be interpreted as including scope " 1~4 ", " 1~3 ", " 1~2 ", " 1~2 and 4~
5 ", " 1~3 and 5 " etc..When number range is described herein, unless otherwise stated, otherwise the scope is intended to include its end
Value and all integers and fraction within the range.
"and/or" is used to represent that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B).
A kind of modified organic silicon defoamer, includes the raw material of following parts by weight：
Such as 10 parts, 12 parts, 15 parts, 18 parts or 20 parts of 10~20 parts of silicon cream；
Such as 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts of 10~15 parts of Pluronic PE 6800；
Such as 2 parts, 3 parts, 4 parts or 5 parts of 2~5 parts of surfactant；
Such as 1.5 parts, 1.8 parts, 2 parts, 2.5 parts or 3 parts of 1.5~3 parts of thickener；
With 70~85 parts such as 70 parts, 72 parts, 75 parts, 78 parts, 80 parts or 85 parts of water.
Preferably, the modified organic silicon defoamer also includes the raw material of following parts by weight：0.1~0.3 part of fungicide
Such as 0.1 part, 0.15 part, 0.2 part, 0.25 part or 0.3 part.
Preferably, the surfactant is fatty acid sorbitan, polysorbate, polyethylene glycol methanesulfonic acid, poly alkyl alcohol
One or more in ethylene oxide ether, polyoxyl 40 stearate and fatty acid glyceride.
More preferably, the surfactant is the combination of polyoxyl 40 stearate and fatty acid glyceride.
Preferably, first thickener is one kind in carboxycellulose, xanthans and polyacrylate.
More preferably, first thickener is carboxycellulose.
Preferably, the fungicide is a kind of a variety of in glutaraldehyde, silver oxide, zinc oxide and magnesia.
Preferably, the Pluronic PE 6800 is polyether block silicone oil.
Present invention also offers a kind of preparation method of modified organic silicon defoamer, the modified organic silicon defoamer is upper
The modified organic silicon defoamer stated；The preparation method includes：
First surfactant and the first thickener are added to the water, are uniformly mixed at 60~80 DEG C；Then add silicon cream,
Pluronic PE 6800, mixes at 60~80 DEG C；40~50 DEG C are cooled to again, are added remaining water and fungicide and are uniformly mixed.
Present invention also offers a kind of defoaming agent composition, the raw material of following parts by weight is included：
Such as 90 parts, 92 parts, 95 parts, 98 parts or 100 parts of 90~100 parts of modified organic silicon defoamer；
Such as 10 parts, 12 parts, 15 parts, 18 parts or 20 parts of 10~20 parts of levelling agent；
Second such as 0.2 part of 0.2~0.3 part of thickener, 0.22 part, 0.25 part, 0.28 part or 0.3 part；
Such as 0.01 part, 0.02 part, 0.03 part, 0.04 part or 0.05 part of 0.01~0.05 part of preservative；
Such as 45 parts, 48 parts, 50 parts, 52 parts or 55 parts of 45~55 parts of water.
Above-mentioned modified organic silicon defoamer is above-mentioned modified organic silicon defoamer.
Preferably, the levelling agent for α-[3- [1,3,3,3- tetramethyl -1- (trimethyl silicon substrate-oxo) disiloxane] -
Propyl group-ω-hydroxyl polyoxyethylene) or dimethyl -3- hydroxypropyl-methyls ethoxyquin, the third oxidation (siloxanes and polysiloxanes).
Dimethyl -3- hydroxypropyl-methyls the ethoxyquin, the viscosity of the third oxidation (siloxanes and polysiloxanes) for 500~
4000mm2/ s such as 500mm2/s、1000mm2/s、1500mm2/s、1800mm2/s、2000mm2/s、2500mm2/s、3000mm2/s
Or 4000mm2/ s etc..
Preferably, second thickener is xanthans or modified polyacrylate；The preservative is Kathon CG preservative.
Present invention also offers a kind of preparation method of defoaming agent composition, the defoaming agent composition is above-mentioned defoaming
Agent composition, the preparation method include：
First the second thickener is added to the water uniformly mixed, adds modified organic silicon defoamer, levelling agent and preservative
It is uniformly mixed.
The present invention by modified organic silicon defoamer, obtained defoamer defoaming is rapid, suds are lasting, it is cost-effective, point
It is good to dissipate property；Defoamer high temperature resistant, acid and alkali-resistance, electrolyte-resistant, the resistant to shearing, it is good with the various compatbilities of dyestuff, not floating oil, no silicon
Spot, it is safe and non-toxic, meet environmental requirement, and stable quality, viscosity and concentration are suitable, easy to use and dilution etc..
For the ease of understanding the present invention, technical scheme is further illustrated with reference to embodiment.Applicant
Statement, the present invention are illustrated by the following examples detailed process equipment and the technological process of the present invention, but not office of the invention
It is limited to following detailed process equipments and technological process, that is, does not mean that the present invention should rely on above-mentioned detailed process equipment and technique stream
Cheng Caineng is implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to each original of product of the present invention
The equivalence replacement of material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and open model
Within enclosing.
Embodiment 1
(1) modified organic silicon defoamer is prepared：First by 1.4 parts of polyoxyl 40 stearates, 1.6 parts of glycerine fatty acids
Ester and 1.5 parts of carboxymethyl celluloses are stirred, and are added in 35 parts of water, are heated to 70 DEG C and are uniformly mixed；Then add
10 parts of silicon cream, 10 parts of Pluronic PE 6800s, stir 30min at a temperature of 70 DEG C, then are cooled to 50 DEG C, by said mixture
30min is stirred at a temperature of 50 DEG C, while adds 40 parts of water, is finally cooled to 30 DEG C under agitation, that is, obtaining modification has
Machine silicon defoaming agent.
(2) defoaming agent composition is prepared：0.2 part of modified polypropene acid resin is slowly added to (side in 45 parts of deionized waters
Edged stir), after stirring evenly add 90 parts of modified organic silicon defoamers stir evenly, add 10 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.01
Part Kathon CG preservative, to obtain the final product.
Embodiment 2
(1) modified organic silicon defoamer is prepared：First by 1 part of polyoxyl 40 stearate, 1 part of fatty acid glyceride and
1.8 parts of carboxymethyl celluloses are stirred, and are added in 30 parts of water, are heated to 60 DEG C and are uniformly mixed；Then 12 parts are added
Silicon cream, 12 parts of Pluronic PE 6800s, stir 30min at a temperature of 70 DEG C, then are cooled to 40 DEG C, by said mixture 40
30min is stirred at a temperature of DEG C, while adds 40 parts of water, 30 DEG C is finally cooled under agitation, that is, obtains modified organic silicon
Defoamer.
(2) defoaming agent composition is prepared：0.22 part of modified polypropene acid resin is slowly added to (side in 48 parts of deionized waters
Edged stir), after stirring evenly add 95 parts of modified organic silicon defoamers stir evenly, add 12 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.03
Part Kathon CG preservative, to obtain the final product.
Embodiment 3
(1) modified organic silicon defoamer is prepared：First by 2.2 parts of polyoxyl 40 stearates, 1.8 parts of glycerine fatty acids
Ester and 2 parts of carboxymethyl celluloses are stirred, and are added in 40 parts of water, are heated to 70 DEG C and are uniformly mixed；Then 10 are added
Part silicon cream, 14 parts of Pluronic PE 6800s, stir 30min at a temperature of 65 DEG C, then are cooled to 45 DEG C, and said mixture is existed
30min is stirred at a temperature of 45 DEG C, while adds 38 parts of water；30 DEG C are finally cooled under agitation, that is, are obtained modified organic
Silicon defoaming agent.
(2) defoaming agent composition is prepared：0.25 part of modified polypropene acid resin is slowly added to (side in 50 parts of deionized waters
Edged stir), after stirring evenly add 92 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.04
Part Kathon CG preservative, to obtain the final product.
Embodiment 4
(1) modified organic silicon defoamer is prepared：First by 2.4 parts of polyoxyl 40 stearates, 2.6 parts of glycerine fatty acids
Ester and 3 parts of carboxymethyl celluloses are stirred, and are added in 35 parts of water, are heated to 75 DEG C and are uniformly mixed；Then 18 are added
Part silicon cream, 11 parts of Pluronic PE 6800s, stir 30min at a temperature of 80 DEG C, then are cooled to 50 DEG C, and said mixture is existed
30min is stirred at a temperature of 50 DEG C, while adds 40 parts of water；0.1 part of silver oxide is eventually adding, is cooled to 30 under agitation
DEG C, that is, obtain modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.28 part of modified polypropene acid resin is slowly added to (side in 52 parts of deionized waters
Edged stir), after stirring evenly add 98 parts of modified organic silicon defoamers stir evenly, add 18 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.03
Part Kathon CG preservative, to obtain the final product.
Embodiment 5
(1) modified organic silicon defoamer is prepared：First by 2 parts of polyoxyl 40 stearates, 2.5 parts of fatty acid glycerides
It is stirred, is added in 40 parts of water with 3 parts of carboxymethyl celluloses, is heated to 70 DEG C and is uniformly mixed；Then 20 parts are added
Silicon cream, 15 parts of Pluronic PE 6800s, stir 30min at a temperature of 70 DEG C, then are cooled to 50 DEG C, by said mixture 50
30min is stirred at a temperature of DEG C, while adds 45 parts of water；0.2 part of glutaraldehyde is eventually adding, is cooled to 30 DEG C under agitation,
Obtain modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.3 part of modified polypropene acid resin is slowly added to (side in 55 parts of deionized waters
Edged stir), after stirring evenly add 100 parts of modified organic silicon defoamers stir evenly, add 20 parts of levelling agent α-[3- [1,3,
3,3- tetramethyl -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding
0.05 portion of Kathon CG preservative, to obtain the final product.
Embodiment 6
(1) modified organic silicon defoamer is prepared：First by 2.5 parts of polyoxyl 40 stearates, 2 parts of fatty acid glycerides
It is stirred, is added in 40 parts of water with 2.5 parts of carboxymethyl celluloses, is heated to 70 DEG C and is uniformly mixed；Then 20 are added
Part silicon cream, 15 parts of Pluronic PE 6800s, stir 30min at a temperature of 70 DEG C, then are cooled to 50 DEG C, and said mixture is existed
30min is stirred at a temperature of 50 DEG C, while adds 40 parts of water；0.3 part of glutaraldehyde is eventually adding, is cooled to 30 under agitation
DEG C, that is, obtain modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.2 part of modified polypropene acid resin is slowly added to (side in 55 parts of deionized waters
Edged stir), after stirring evenly add 95 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.03
Part Kathon CG preservative, to obtain the final product.
Comparative example 1
(1) modified organic silicon defoamer is prepared：First by 2.2 parts of polyoxyl 40 stearates, 1.8 parts of glycerine fatty acids
Ester and 2 parts of carboxymethyl celluloses are stirred, and are added in 40 parts of water, are heated to 70 DEG C and are uniformly mixed；Then 10 are added
Part silicon cream, stirs 30min at a temperature of 65 DEG C, then is cooled to 45 DEG C, and said mixture is stirred 30min at a temperature of 45 DEG C,
38 parts of water are added at the same time；30 DEG C are finally cooled under agitation, that is, obtain modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.25 part of modified polypropene acid resin is slowly added to (side in 50 parts of deionized waters
Edged stir), after stirring evenly add 92 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.04
Part Kathon CG preservative, to obtain the final product.
Comparative example 2
(1) modified organic silicon defoamer is prepared：First by 2.2 parts of polyoxyl 40 stearates, 1.8 parts of glycerine fatty acids
Ester and 2 parts of carboxymethyl celluloses are stirred, and are added in 40 parts of water, are heated to 70 DEG C and are uniformly mixed；Then 14 are added
Part Pluronic PE 6800, stirs 30min at a temperature of 65 DEG C, then is cooled to 45 DEG C, by said mixture at a temperature of 45 DEG C
30min is stirred, while adds 38 parts of water；30 DEG C are finally cooled under agitation, that is, obtain modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.25 part of modified polypropene acid resin is slowly added to (side in 50 parts of deionized waters
Edged stir), after stirring evenly add 92 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.04
Part Kathon CG preservative, to obtain the final product.
Comparative example 3
(1) modified organic silicon defoamer is prepared：2 parts of carboxymethyl celluloses are stirred first, are added in 40 parts of water,
70 DEG C are heated to be uniformly mixed；Then 10 parts of silicon cream, 14 parts of Pluronic PE 6800s are added, are stirred at a temperature of 65 DEG C
30min, then 45 DEG C are cooled to, said mixture is stirred into 30min at a temperature of 45 DEG C, while add 38 parts of water；Finally stirring
30 DEG C are cooled under the conditions of mixing, that is, obtains modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.25 part of modified polypropene acid resin is slowly added to (side in 50 parts of deionized waters
Edged stir), after stirring evenly add 92 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.04
Part Kathon CG preservative, to obtain the final product.
Comparative example 4
(1) modified organic silicon defoamer is prepared：First by 2.2 parts of polyoxyl 40 stearates, 1.8 parts of glycerine fatty acids
Ester is stirred, and is added in 40 parts of water, is heated to 70 DEG C and is uniformly mixed；Then it is embedding that 10 parts of silicon cream, 14 parts of EO/PO are added
Section copolymer, stirs 30min at a temperature of 65 DEG C, then is cooled to 45 DEG C, and said mixture is stirred at a temperature of 45 DEG C
30min, while 38 parts of water are added, it is uniformly mixed, that is, obtains modified organic silicon defoamer.
(2) defoaming agent composition is prepared：0.25 part of modified polypropene acid resin is slowly added to (side in 50 parts of deionized waters
Edged stir), after stirring evenly add 92 parts of modified organic silicon defoamers stir evenly, add 15 parts of levelling agent α-[3- [1,3,3,
3- tetramethyls -1- (trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) stir evenly, it is eventually adding 0.04
Part Kathon CG preservative, to obtain the final product.
It is to the defoaming composition of embodiment 1~6 and the preparation of comparative example 1~4 and disappearing for conventional organic silicon defoamer below
Bubble, suds suppressing properties, resistance to elevated temperatures, acid-proof alkaline carry out contrast test.
1. defoaming composition and conventional organic silicon defoamer prepared by above-described embodiment 1~6 and comparative example 1~4 are in temperature
Spend for 80~90 DEG C, be 1 by the mass ratio of defoamer and water in the case of pH=9:4 add water to be diluted, and then respectively take 5 drops to adopt
Antifoam performance and suds suppressing properties of the defoaming composition in frothing media stoste after evaluating dilution with the mode of continuous bubbling；Knot
Fruit is as shown in table 1 below.
It should be noted that antifoam performance is foam how long is can reach minimum altitude according to the addition of defoamer to sentence
Disconnected, the time is shorter, and antifoam performance is better, conversely, antifoam performance is poorer.Suds suppressing properties are that the height most started is returned to according to foam
The time that degree needs judges that the time is longer, and suds suppressing properties are better.
Table 1
It can be drawn by upper table 1, with regard to foam can be made to reach minimum in defoaming composition 5s prepared by the embodiment of the present invention 1~6
Height is, it is necessary to which at least 480s can just return to the height most started；And just make in defoaming composition 10s prepared by comparative example 1~4
Foam reaches minimum altitude, and most 180s then want 7s just to make bubble with regard to that can return to the height most started, conventional organic silicon defoamer
Foam reaches minimum altitude, and 300s is with regard to that can return to the height most started.
Therefore, the brokenly bubble performance of defoaming agent composition prepared by the embodiment of the present invention 1~6 and suds suppressing properties are superior to contrast
Defoaming agent composition and the brokenly bubble performance and suds suppressing properties of conventional organic silicon defoamer prepared by example 1~4, and the embodiment of the present invention
1~6 defoaming agent composition prepared can defoam faster makes foam height reach bottom.
2. defoaming composition and conventional organic silicon defoamer prepared by embodiment 1~6 and comparative example 1~4 take 3g respectively
Add in 97g water, observation is heated to 40~100 DEG C of phenomenon, and the phenomenon of room temperature is down in then observation, as a result as shown in table 2 below.
Table 2
Drawn by upper table 2, the resistance to elevated temperatures of defoaming agent composition prepared by the embodiment of the present invention 1~6 is good obvious excellent
The defoaming agent composition and the resistance to elevated temperatures of conventional organic silicon defoamer prepared in comparative example 1~4.
3. defoaming composition and conventional organic silicon defoamer prepared by embodiment 1~6 and comparative example 1~4 take 5g respectively
It is put into corresponding bottle, adds 95g water, adjust different pH value, stirs.The phenomenon under different pH value is observed, as a result such as table 3
It is shown.
Table 3
Drawn by upper table 3, the acid-proof alkaline of defoaming agent composition prepared by the embodiment of the present invention 1~6 is good obvious excellent
The defoaming agent composition and the acid-proof alkaline of conventional organic silicon defoamer prepared in comparative example 1~4.
The preferred embodiment of the present invention is above are only, is not intended to limit the invention, for those skilled in the art
For member, inventive formulation and preparation process can have various modifications and variations.Within the spirit and principles of the invention, institute
Any modification, equivalent substitution, improvement and etc. of work, should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. modified organic silicon defoamer, it is characterised in that：Include the raw material of following parts by weight：10~20 parts of silicon cream, EO/ 70~85 parts of 10~15 parts of PO block copolymers, 2~5 parts of surfactant, 1.5~3 parts of the first thickener and water.
- 2. modified organic silicon defoamer according to claim 1, it is characterised in that：Also include the original of following parts by weight Material：0.1~0.3 part of fungicide.
- 3. modified organic silicon defoamer according to claim 1, it is characterised in that：The surfactant is aliphatic acid mountain Pears are smooth, polysorbate, polyethylene glycol methanesulfonic acid, fatty alcohol polyoxyethylene ether, polyoxyl 40 stearate and glycerine fatty acid One or more in ester.
- 4. modified organic silicon defoamer according to claim 1, it is characterised in that：First thickener is carboxylated fiber One kind in element, xanthans and polyacrylate.
- 5. modified organic silicon defoamer according to claim 2, it is characterised in that：The fungicide is glutaraldehyde, oxidation One or more in silver, zinc oxide and magnesia.
- A kind of 6. preparation method of modified organic silicon defoamer, it is characterised in that：The modified organic silicon defoamer will for right Seek 1~5 any one of them modified organic silicon defoamer；The preparation method includes：First surfactant and the first thickener are added to the water, are uniformly mixed at 60~80 DEG C；Then silicon cream, EO/ are added PO block copolymers, mix at 60~80 DEG C；40~50 DEG C are cooled to again, add remaining water or remaining water and fungicide mixing Uniformly.
- A kind of 7. defoaming agent composition, it is characterised in that：Include the raw material of following parts by weight：Modified organic silicon defoamer 90~ 45~55 parts of 100 parts, 10~20 parts of levelling agent, 0.2~0.3 part of the second thickener, 0.01~0.05 part of preservative and water；It is described Modified organic silicon defoamer is Claims 1 to 4 any one of them modified organic silicon defoamer.
- 8. defoaming agent composition according to claim 7, it is characterised in that：The levelling agent is α-[3- [1,3,3,3- tetra- Methyl isophthalic acid-(trimethyl silicon substrate-oxo) disiloxane]-propyl group-ω-hydroxyl polyoxyethylene) or dimethyl -3- hydroxypropyls-first Base ethoxyquin, the third oxidation (siloxanes and polysiloxanes)；Dimethyl -3- hydroxypropyl-methyls the ethoxyquin, the third oxidation (silicon Oxygen alkane and polysiloxanes) viscosity be 500~4000mm2/s。
- 9. defoaming agent composition according to claim 7, it is characterised in that：Second thickener is xanthans or modification Polyacrylate；The preservative is Kathon CG.
- A kind of 10. preparation method of defoaming agent composition, it is characterised in that：The defoaming agent composition is claim 7~9 times Defoaming agent composition described in one, the preparation method include：First the second thickener is added to the water it is uniformly mixed, add modified organic silicon defoamer, levelling agent and preservative mixing Uniformly.
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| CN111760334A (en) * | 2020-07-21 | 2020-10-13 | 滨州市广友化工有限公司 | Organic silicone oil defoaming agent and preparation method thereof |
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