CN107137959A - A kind of preparation method of non-silicon emulsion defoamer - Google Patents
A kind of preparation method of non-silicon emulsion defoamer Download PDFInfo
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Abstract
The present invention relates to a kind of preparation method of non-silicon emulsion defoamer, fatty alcohol, paraffin, Lipid use nonionic surfactant, thickener and water are prepared into emulsion respectively, again three's emulsion and anion surfactant are carried out being mixed to get non-silicon emulsion defoamer at normal temperatures, the preparation method technique is simple, prepared emulsion is more stable, while antifoaming performance is improved.
Description
Technical field
It is fine chemicals additive the present invention relates to a kind of defoamer, therefore, the invention belongs to fine chemicals technology
Field.
Background technology
In paper making wet part, sizing agent, retention and drainage aid agent, reinforcing agent, deinking agent, drying strengthening agent can be used according to paper kind difference
Deng the auxiliary agent with surface-active, in copy paper plain boiled water cyclic process, it is easy to produce bubble, the presence of these bubbles is to paper
Have a great impact, make degree of sizing poor, spot, diaphanous spot and aperture occurs in paper, or even causes disconnected paper, and easily makes the fortune of pump
Line efficiency declines, and increases energy consumption.
Application of the fatty alcohol emulsion defoamer in paper making wet part has been ripe technology.Domestic and international researcher is to fat
Fat alcohol emulsion defoamer has done many researchs.On the one hand it is the stability for improving fatty alcohol emulsion mainly in terms of two, it is another
Aspect is to improve the antifoaming performance of fatty alcohol emulsion.
It will add water and had after higher alcohols, linolenic acid sodium and the uniform Hybrid Heating of anhydrous sorbitol in CN102337706A
There is the defoamer of good antifoaming performance；The melt of higher alcohols, polyglycerol ester, mineral oil is well mixed in EP2663689
Aqueous phase emulsification is added afterwards and obtains defoamer, and emulsion prepared by this invention has substantially excellent antifoaming performance at 20-50 DEG C.On
State two patents and only focus on antifoaming performance in emulsion, stability can not be taken into account.By higher alcohols, fusing point in CN105658294A
It is more than 90 DEG C of waxes as main antifoam composition, emulsion is prepared under the pressure condition more than 1.0 air pressure, this invention prepares breast
Although liquid has preferable antifoaming performance under the high temperature conditions, same emulsion intercalation method can not be taken into account and prepare work
Skill is more complicated.
By emulsifier and defoaming activity thing material in CN101780383A（Higher alcohols, glycerin polyether, alkynol）It is dissolved in point
In dispersion media, the heating pre-emulsification laggard step-length time homogenizes preparation stable emulsion, and the emulsion prepares that time-consuming, and cost is high；
Strong dispersion is carried out to fatty alcohol emulsion using high speed dispersor in CN103628353A, while introducing polymer substance to prepare
Stable emulsion, preparation method is more complicated；US5807502 utilizes the C6-18 1,2- glycol and oxirane containing straight chained alkyl
Addition product as emulsifying agent carry out stabile fat alcohol emulsion, such emulsifying agent market is difficult to buy, and synthesis material is expensive；
CN1781574A using the addition product of C2-4 alkylene oxides and the primary alconol for having branched alkyl come stabile fat alcohol emulsion, but such side
Method can not solve the problems, such as natural fatty alcohol emulsion intercalation method.
Above patent generally existing problems with, the stability and antifoaming performance of the first fatty alcohol emulsion defoamer are difficult to
Take into account, second emulsion stability, which is improved, to be generally required by complicated technique.
The inventors discovered that the reason for causing fatty alcohol emulsion defoamer unstable be in fatty alcohol emulsion defoamer except
Outside fatty alcohol, also other components such as paraffin, grease, and emulsify these other components and the emulsifying agent needed for chyle fat alcohol
HLB value is inconsistent, is mutually difficult to balance to cause emulsion unstable.The present inventor is carried by a kind of simple preparation technology
The high stability of fatty alcohol emulsion defoamer, and the inventors discovered that utilize fatty alcohol emulsion defoamer prepared by such a technique
Antifoaming performance is improved simultaneously.
The content of the invention
Fatty alcohol, paraffin, Lipid use nonionic surfactant, thickener and water are prepared into breast by the present invention respectively
Liquid, then three's emulsion is mixed with anion surfactant at normal temperatures so that fatty alcohol emulsion defoamer is able to surely
It is fixed, while antifoaming performance is improved.
Technical scheme
Non- silicon emulsion defoamer prepared by the present invention, it is composed of the following components：
1st, fatty alcohol
Fatty alcohol is C12-C30 unitary to trihydroxylic alcohol, including synthetic fatty alcohol and natural fatty alcohol in the present invention.Synthctic fat
Alcohol can be obtained by ziegler process by the oxidation of alkyl aluminum, can also be obtained by oxo synthesis；Natural fatty alcohol can
To be obtained by being extracted in grease.Specifically, the fatty alcohol includes the fatty alcohol containing single carbon atom, such as C12 alcohol, C14
Alcohol, C16 alcohol, C18 alcohol, C20 alcohol, C22 alcohol, C24 alcohol, C26 alcohol, C28 alcohol, C30 alcohol；And the mixing containing different carbon numbers
Fatty alcohol, such as C12-18 mixed alcohols, C16-18 mixed alcohols, C16-22 mixed alcohols, from one or more therein.Fat
Alcohol consumption accounts for the 15-25% of emulsion total amount
2nd, paraffin
Paraffin is a kind of hydrocarbon extracted from oil, shale oil or other pitch mineral oil in the present invention, such as
Microcrystalline wax, atoleine.Paraffin consumption accounts for the 2-8% of emulsion total amount.
3rd, grease
Grease is in rapeseed oil, peanut oil, soybean oil, coconut oil, palm oil, castor oil, olive oil, butter in the present invention
It is one or more.Grease amount accounts for the 2-8% of emulsion total amount
4th, nonionic surfactant
Nonionic surfactant is divided into three classes in the present invention：
Nonionic surfactant A structural formulas are：R1O(EO)mH, wherein R1For C8-28Alkyl, m be 25-60 integer, it is non-from
Sub- surfactant A consumption accounts for the 0.1 ~ 3% of emulsion total amount.
Nonionic surfactant B structure formula is：R2O(EO)nH, wherein R2For C8-28Alkyl, n be 10-20 integer,
Nonionic surfactant B consumptions account for the 0.1 ~ 3% of emulsion total amount.
Nonionic surfactant C includes polyoxyethylene 20 sorbitan monostearate（Tween60）, polyoxyethylene lose
Water sorbitol monooleate（Tween80）, polyoxyethylene 20 sorbitan trioleate（Tween85）, anhydrous sorbitol Dan Yue
Cinnamic acid ester（Span20）, sorbitan monopalmitate（Span40）, sorbitan monostearate（Span60）, it is three hard
Glycerol, glycerin monostearate, pentaerythrite tristerin, ethylene glycol monostearate, ethylene glycol distearyl
It is one or more in acid esters, diethylene glycol monostearate, diethylene glycol distearate.Nonionic surfactant C consumptions
Account for the 0.1 ~ 3% of emulsion total amount.
5th, thickener
Thickener includes xanthan gum, guar gum, carboxymethyl cellulose, hydroxyethyl cellulose, methylcellulose, poly- third in the present invention
Olefin(e) acid, polyacrylamide and polyacrylate, preferably polyacrylate.Thickener consumption accounts for the 1 ~ 3% of emulsion total amount.Thickener
It is divided into three parts to use, 1/3rd of thickener total amount is accounted for respectively.
6th, water
Water consumption accounts for the 60-75% of emulsion total amount in the present invention.Moisture is that three parts are used, and 1/3rd of water inventory are accounted for respectively.
7th, anion surfactant
Anion surfactant is selected from alkylsulfonate, alkyl diphenyl ether disulfonate, alkylphenol-polyethenoxy in the present invention
It is one or more in ether phosphate salt, fatty alcohol polyoxyethylene ether sulfate, specifically including lauryl sodium sulfate, dodecane
Base benzene sulfonic acid sodium salt, ferric tri-dodecanesulfonate, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate.It is total that anionic surfactant dose accounts for emulsion
The 1 ~ 3% of amount.
A kind of preparation method of non-silicon emulsion type defoaming agent of the present invention is as follows：
（1）It is prepared by fatty alcohol emulsion：Fatty alcohol, nonionic surfactant A are mixed in proportion, 70-90 DEG C, stirring is warming up to
It is allowed to well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high speed shear
Equipment is further emulsified, and is cooled to room temperature, adds 1/3rd thickener, regulation to required viscosity.
（2）It is prepared by paraffin wax emulsions：Paraffin, nonionic surfactant B are mixed in proportion, 70-90 DEG C, stirring is warming up to
It is allowed to well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high speed shear
Equipment is further emulsified, and is cooled to room temperature, adds 1/3rd thickeners, regulation to required viscosity.
（3）It is prepared by fat liquor：Grease, nonionic surfactant C are mixed in proportion, 70-90 DEG C, stirring is warming up to
It is allowed to well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high speed shear
Equipment is further emulsified, and is cooled to room temperature, adds 1/3rd thickener, regulation to required viscosity.
（4）Fatty alcohol emulsion, paraffin wax emulsions, fat liquor and anion surfactant are well mixed at normal temperatures,
It can obtain defoamer of the present invention.
Embodiment
Embodiment 1
（1）By 15 parts of C16-22 mixed alcohols, 0.5 part of lauryl alcohol polyethylene glycol oxide（40）Ether is mixed in proportion, is warming up to 90 DEG C, is stirred
Mix and be allowed to well mixed；21.5 parts 80 DEG C of water is slowly added to appeal mixture, it is then further by high-speed shearing equipment
Emulsification, is cooled to room temperature, adds 1 part of polyacrylic ester thickener, stirs and can obtain emulsion a；
（2）By 6 parts of microcrystalline waxes, 0.5 part of lauryl alcohol polyethylene glycol oxide（20）Ether is mixed in proportion, is warming up to 90 DEG C, stirring is allowed to
It is well mixed；21.5 parts 80 DEG C of water is slowly added to appeal mixture, then further emulsified by high-speed shearing equipment, it is cold
But to room temperature, 1 part of polyacrylic ester thickener is added, stirs and can obtain emulsion b；
（3）8 portions of rapeseed oils, 0.5 part of sorbester p18,0.5 part of polysorbate60 are mixed in proportion, 80 DEG C are warming up to, stirring is allowed to mix
Uniformly；21.5 parts 80 DEG C of water is slowly added to appeal mixture, is then further emulsified, is cooled to by high-speed shearing equipment
Room temperature, adds 1 part of polyacrylic ester thickener, stirs and can obtain emulsion c；；
（4）A, b, c emulsion prepared is well mixed at normal temperatures with 1.5 parts of lauryl sodium sulfate；Produce emulsion viscosity
For 540mpa.s emulsion.
Embodiment 2
（1）By 15 parts of C18 alcohol, 1 part of lauryl alcohol polyethylene glycol oxide（30）Ether is mixed in proportion, is warming up to 90 DEG C, stirring is allowed to mix
Uniformly；22 parts 80 DEG C of water is slowly added to appeal mixture, is then further emulsified by high-speed shearing equipment, is cooled to room
Temperature, adds 0.4 part of polyacrylic ester thickener, stirs and can obtain emulsion d；
（2）By 8 parts of microcrystalline waxes, 0.5 part of lauryl alcohol polyethylene glycol oxide（20）Ether is mixed in proportion, is warming up to 90 DEG C, stirring is allowed to
It is well mixed；22 parts 80 DEG C of water is slowly added to appeal mixture, is then further emulsified, cooled down by high-speed shearing equipment
To room temperature, 0.4 part of polyacrylic ester thickener is added, stirs and can obtain emulsion e；
（3）4 parts of castor oil, 2 parts of rapeseed oils, 0.5 part of diethylene glycol monostearate, 0.1 part of polysorbate60 are mixed in proportion, risen
Temperature is to 80 DEG C, and stirring is allowed to well mixed；22 parts 80 DEG C of water is slowly added to appeal mixture, then set by high speed shear
Standby further emulsification, is cooled to room temperature, adds 0.4 part of polyacrylic ester thickener, stir and can obtain emulsion f；
（4）D, e, f emulsion prepared is well mixed at normal temperatures with 1.7 parts of lauryl sodium sulfate；Produce emulsion viscosity
For 423 mpa.s emulsion.
Embodiment 3
（1）By 10 parts of C20 alcohol, 10 parts of C22 alcohol, 5 parts of C24 alcohol, 3 parts of stearyl alcohol polyoxyethylene（30）Ether is mixed in proportion, heating
To 90 DEG C, stirring is allowed to well mixed；20.2 parts 90 DEG C of water is slowly added to appeal mixture, then set by high speed shear
Standby further emulsification, is cooled to room temperature, adds 0.5 part of polyacrylic ester thickener, stir and can obtain emulsion h；
（2）By 2 parts of atoleines, 3 parts of lauryl alcohol polyethylene glycol oxides（15）Ether is mixed in proportion, is warming up to 90 DEG C, stirring is allowed to mixed
Close uniform；20.2 parts 75 DEG C of water is slowly added to appeal mixture, is then further emulsified, cooled down by high-speed shearing equipment
To room temperature, 0.5 part of polyacrylic ester thickener is added, stirs and can obtain emulsion i；
（3）2 portions of soybean oils, 1.9 parts of glycerin monostearates are mixed in proportion, 80 DEG C are warming up to, stirring is allowed to well mixed；
20.2 parts 85 DEG C of water is slowly added to appeal mixture, is then further emulsified by high-speed shearing equipment, is cooled to room temperature,
0.5 part of polyacrylic ester thickener is added, stirs and can obtain emulsion j；
（4）H, i, j emulsion prepared is well mixed at normal temperatures with 1 part of disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate；Produce breast
Fluid viscosity is 670mpa.s emulsion.
Embodiment 4
（1）By 10 parts of C16-C18 mixed alcohols, 8 parts of C22 alcohol, 1 part of stearyl alcohol polyoxyethylene（40）Ether is mixed in proportion, is warming up to
90 DEG C, stirring is allowed to well mixed；21.3 parts 80 DEG C of water is slowly added to appeal mixture, then passes through high-speed shearing equipment
Further emulsification, is cooled to room temperature, adds 0.5 part of polyacrylic ester thickener, stirs and can obtain emulsion k；
（2）By 4 parts of microcrystalline waxes, 2 parts of atoleines, 1 part of stearyl alcohol polyoxyethylene（20）Ether is mixed in proportion, is warming up to 90
DEG C, stirring is allowed to well mixed；21.3 parts 80 DEG C of water is slowly added to appeal mixture, then entered by high-speed shearing equipment
One step is emulsified, and is cooled to room temperature, is added 0.5 part of polyacrylic ester thickener, is stirred and can obtain emulsion l；
（3）5 portions of peanut oil, 0.6 part of pentaerythrite tristerin are mixed in proportion, 80 DEG C are warming up to, stirring is allowed to mixed
Close uniform；21.3 parts 80 DEG C of water is slowly added to appeal mixture, is then further emulsified, cooled down by high-speed shearing equipment
To room temperature, 0.5 part of polyacrylic ester thickener is added, stirs and can obtain emulsion m；
（4）K, l, m emulsion prepared is well mixed at normal temperatures with 3 parts of neopelexes；Produce emulsion viscosity
For 400mpa.s emulsion.
Comparative example 1
By the fatty alcohol of 15 parts of C16 ~ 22,6 parts of microcrystalline waxes, 8 parts of rapeseed oils, 0.1 part of neopelex, 1 part of laruyl alcohol
Polyoxyethylene（40）Ether is heated to 90 DEG C, is uniformly mixed, and is slowly added to 67.9 parts of 80 DEG C of hot water, is set by high speed shear
It is standby, room temperature is cooled to, 2 parts of polyacrylic ester thickeners are added, you can the emulsion that viscosity is 771mpa.s is obtained.
Comparative example 2
15 parts of C18 alcohol, 8 parts of microcrystalline waxes, 4 parts of castor oil, 2 parts of rapeseed oils, 3 parts of lauryl sodium sulfate, 1 part of laruyl alcohol are gathered
Oxygen ethene（20）Ether, 1 part of stearyl alcohol polyoxyethylene（20）Ether is heated to 90 DEG C, is uniformly mixed, and is slowly added to 65 parts 90 DEG C
Hot water, by high-speed shearing equipment, is cooled to room temperature, adds 1 part of polyacrylic ester thickener, you can obtaining viscosity is
478mpa.s emulsion.
Comparative example 3
By 10 parts of C20 alcohol, 10 parts of C22 alcohol, 5 parts of C24 alcohol, 2 parts of atoleines, 2 parts of soybean oils, 2 parts of dodecyl diphenyl oxides two
Sodium sulfonate, 1 part of lauryl alcohol polyethylene glycol oxide（20）Ether, 1 part of diethylene glycol monostearate are heated to 90 DEG C, are uniformly mixed,
66 parts of 90 DEG C of hot water are slowly added to, by high-speed shearing equipment, room temperature is cooled to, adds 1 part of polyacrylic ester thickener, you can
Obtain the emulsion that viscosity is 600mpa.s.
Comparative example 4
By 10 parts of C16-C18 mixed alcohols, 8 parts of C22 alcohol, 4 parts of microcrystalline waxes, 2 parts of atoleines, 5 parts of peanut oil, 2 parts of dodecanes
Base sodium sulphate, 2 parts of lauryl alcohol polyethylene glycol oxides（20）Ether, 0.5 part of glycerin monostearate, 1 part of pentaerythrite tristerin,
90 DEG C are heated to, is uniformly mixed, 63.5 parts of 90 DEG C of hot water is slowly added to, by high-speed shearing equipment, is cooled to room temperature, plus
Enter 2 parts of polyacrylic ester thickeners, you can obtain the emulsion that viscosity is 580mpa.s.
Comparative example 5
By 10 parts of C16-C18 mixed alcohols, 8 parts of C22 alcohol, 4 parts of microcrystalline waxes, 2 parts of atoleines, 5 parts of peanut oil, 1 part of stearyl alcohol
Polyoxyethylene（30）Ether, 1 part of lauryl alcohol polyethylene glycol oxide（20）Ether, 1 part of sorbester p18,0.5 part of polysorbate60 are heated to 90 DEG C, and stirring is mixed
Close uniform, be slowly added to 65.5 parts of 90 DEG C of hot water, by high-speed shearing equipment, be cooled to room temperature, add 2 parts of polyacrylate and increase
Thick dose, you can obtain the emulsion that viscosity is 445mpa.s.
Comparative example 6（Prepared according to patent CN102600647B methods）
By 10 parts of C16-C18 mixed alcohols, 8 parts of C22 alcohol, 4 parts of microcrystalline waxes, 2 parts of atoleines, 5 parts of peanut oil, 1 part of dodecane
Base sodium sulphate, 2 parts of lauryl alcohol polyethylene glycol oxides（40）Ether, 0.5 part of glycerin monostearate, 90 DEG C are heated to, are uniformly mixed,
65.5 parts of 90 DEG C of hot water are slowly added to, the emulsion obtained by high-speed shearing equipment adds 1 part of lauryl sodium sulfate, cooling
To room temperature, 1 part of polyacrylic ester thickener is added, you can obtain the emulsion that viscosity is 415mpa.s.
Comparative example 7（Prepared according to patent CN103628353A methods）
By 10 parts of C16-C18 mixed alcohols, 8 parts of C22 alcohol, 4 parts of microcrystalline waxes, 2 parts of atoleines, 5 parts of peanut oil, 2 parts of laruyl alcohols
Polyoxyethylene（40）Ether, 0.5 part of glycerin monostearate, 1 part of molecular weight are mixed and heated to 90 DEG C for 5000 Sodium Polyacrylate,
0.3h is disperseed with 4000r/min rotating speed using high speed dispersor, 32 parts of 90 DEG C of hot water are added, the time that adds water is 0.5h hours,
The Polyacrylate thickeners that 2 parts of molecular weight are 500,000 are added, 33.5 parts of 90 DEG C of hot water are continuously added, the time that adds water is 0.5h,
It is cooled to room temperature, you can obtain the emulsion that viscosity is 485mpa.s.
Performance test
1st, stability of emulsion is tested
The emulsion that above-described embodiment and comparative example are prepared, is individually positioned in 6 months viscosity of progress at 5 DEG C, 25 DEG C, 40 DEG C
Tracking and testing.The specific method of testing of viscosity is tested under the conditions of using NDJ-8 type digital display viscosity apparatus, 2# rotors, 6rpm.Specifically
Situation see the table below（Viscosity unit mPa.s, "-" represents emulsion into lotion, it is impossible to flow）：
The froth breaking agent emulsion of the invention prepared is can be seen that from viscosity tracking and testing data to store up under the conditions of 5 DEG C, 25 DEG C, 40 DEG C
Deposit 6 months, viscosity B coefficent amplitude is smaller, it is shown that good storage stability.And fatty alcohol emulsion prepared by comparative example 1-5 glues
Degree had different degrees of increase at 6 months.
The method of comparative example 6 and comparative example 7 respectively in patent CN102600647B and CN103628353A prepares breast
Liquid, emulsion viscosity amplitude of variation prepared by tracking data display comparison example 6-7 is also smaller.
, antifoaming performance method of testing：
The performance of defoamer is determined using the method for circulation bubbling, and adding 600ml plain boiled waters into circulation bubbling device is heated to institute
Temperature is needed, turn-on flow rate pump under 8/L min flow, is recycled to foam volume 300ml, adds 6ul defoamers, record bubble
Foam volume is changed over time, in same time, and volume is smaller, and antifoaming performance is better；Foam reaches the time at 300ml again
Longer, then suds suppressing properties are better.
Fatty alcohol emulsion prepared by the present invention shows good antifoaming performance at 30 DEG C, 55 DEG C, with stability
Preferable comparative example 6, comparative example 7, which are compared, equally shows good antifoaming performance.
Claims (4)
1. a kind of preparation method of non-silicon emulsion defoamer, it is characterised in that described non-silicon emulsion defoamer is by following components
Composition：
（1）Fatty alcohol, consumption is the 15 ~ 25% of the non-silicon emulsion defoamer total amount；
（2）Paraffin, consumption is the 2 ~ 8% of the non-silicon emulsion defoamer total amount；
（3）Grease, consumption is the 2 ~ 8% of the non-silicon emulsion defoamer total amount；
（4）Nonionic surfactant, nonionic surfactant is divided into three classes, respectively nonionic surfactant A, it is non-from
Sub- surfactant B and nonionic surfactant C, nonionic surfactant A, nonionic surfactant B and nonionic
Surfactant C consumptions are respectively the 0.1 ~ 3% of the non-silicon emulsion defoamer total amount；
（5）Thickener, consumption is the 1 ~ 3% of the non-silicon emulsion defoamer total amount；
（6）Water, consumption is the 60 ~ 75% of the non-silicon emulsion defoamer total amount；
（7）Anion surfactant, consumption is the 1 ~ 3% of the non-silicon emulsion defoamer；
The non-silicon emulsion defoamer preparation method is：
（1）It is prepared by fatty alcohol emulsion：Fatty alcohol, nonionic surfactant A are mixed in proportion, 70-90 DEG C, stirring is warming up to
It is allowed to well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high speed shear
Equipment is further emulsified, and is cooled to room temperature, adds 1/3rd thickener, regulation to required viscosity；
（2）It is prepared by paraffin wax emulsions：Paraffin, nonionic surfactant B are mixed in proportion, 70-90 DEG C is warming up to, stirring is allowed to
It is well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high-speed shearing equipment
Further emulsification, is cooled to room temperature, adds 1/3rd thickeners, regulation to required viscosity；
（3）It is prepared by fat liquor：Grease, nonionic surfactant C are mixed in proportion, 70-90 DEG C is warming up to, stirring is allowed to
It is well mixed；1/3rd water more than 70 DEG C is slowly added into said mixture, then passes through high-speed shearing equipment
Further emulsification, is cooled to room temperature, adds 1/3rd thickener, regulation to required viscosity；
（4）Fatty alcohol emulsion, paraffin wax emulsions, fat liquor and anion surfactant are well mixed at normal temperatures, you can
Obtain defoamer of the present invention.
2. the nonionic surfactant A structural formulas described in claim 1 are：R1O(EO)mH, wherein R1For C8-28Alkyl, m
For 25-60 integer.
3. the nonionic surfactant B structure formula described in claim 1 is：R2O(EO)nH, wherein R2For C8-28Alkyl, n
For 10-20 integer.
4. the nonionic surfactant C described in claim 1 is selected from polyoxyethylene 20 sorbitan monostearate
（Tween60）, polyoxyethylene 20 sorbitan monooleate（Tween80）, polyoxyethylene 20 sorbitan trioleate
（Tween85）, sorbitan mono-laurate（Span20）, sorbitan monopalmitate（Span40）, Sorbitan
Alcohol monostearate（Span60）, glyceryl tristearate, glycerin monostearate, pentaerythrite tristerin, second two
It is a kind of or many in alcohol monostearate, glycol distearate, diethylene glycol monostearate, diethylene glycol distearate
Kind.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021203555A1 (en) * | 2020-04-09 | 2021-10-14 | 江苏四新科技应用研究所股份有限公司 | Preparation method for fatty alcohol emulsion defoaming agent |
| TWI772729B (en) * | 2019-12-30 | 2022-08-01 | 林大強 | Antifoam composition |
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| CN102600647A (en) * | 2012-03-29 | 2012-07-25 | 南京四新科技应用研究所有限公司 | Method for preparing stable aliphatic emulsion |
| CN102649021A (en) * | 2012-05-03 | 2012-08-29 | 安微銮威化工科技开发有限公司 | Non-silicon composite emulsion type antifoaming agent and preparation method thereof |
| CN104069653A (en) * | 2013-03-29 | 2014-10-01 | 上海依科绿色工程有限公司 | Mineral oil defoamer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI772729B (en) * | 2019-12-30 | 2022-08-01 | 林大強 | Antifoam composition |
| WO2021203555A1 (en) * | 2020-04-09 | 2021-10-14 | 江苏四新科技应用研究所股份有限公司 | Preparation method for fatty alcohol emulsion defoaming agent |
| CN113512901A (en) * | 2020-04-09 | 2021-10-19 | 江苏四新科技应用研究所股份有限公司 | Preparation method of fatty alcohol emulsion defoaming agent |
| CN113512901B (en) * | 2020-04-09 | 2023-03-10 | 江苏四新科技应用研究所股份有限公司 | Preparation method of fatty alcohol emulsion defoaming agent |
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