CN108970182A - A kind of stable type defoaming agent and preparation method thereof - Google Patents
A kind of stable type defoaming agent and preparation method thereof Download PDFInfo
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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 stable type defoaming agents and preparation method thereof, belong to defoaming technology agent field.Using diatomite as raw material hexamethyldisiloxane is added, in a large amount of methyl of diatomite surface grafting in the present invention, adsorption activity object is obtained, more defoaming activity objects are adsorbed, increases adhesive capacity, to improve the content of active matter in defoaming agent, to reduce the usage amount of defoaming agent；Dispersion active matter is prepared for the cheap high boiling point silicon oil part higher methyl-silicone oil of fictitious hosts, high boiling point silicon oil is made of short chain polysiloxane, surface tension is low, it is easily dispersed and plays defoaming, dimethicone viscosity is higher, is mainly made of long-chain polysiloxanes, solubility is smaller in foamed solution, defoaming effect persistence is stronger, and suds suppressing properties are stronger.It is lower that the present invention solves the foam inhibition ability for current defoaming agent, the big problem of dosage.
Description
Technical field
The present invention relates to defoaming technology field, it is related to a kind of stable type defoaming agent and preparation method thereof.
Background technique
In fabric finishing each process, blistering is a problem during refining, bleaching, dyeing and arrangement.It spins at present
Dyeing is knitted the quality requirement of anti-foam product is continuously improved, it is desirable that defoaming agent wide pH value and at a temperature of there is stabilization
Property, and it is resistant to high shear, lasting defoaming and foam inhibition.Defoaming agent is many kinds of from natural materials to synthetic, wherein organosilicon
This kind of performance comparative superiority of class, has a wide range of application.It common are that machine silicon type defoaming agent is less toxic, anti-oxidant, brokenly bubble ability is strong, but
Its foam inhibition ability is lower, thus consumption is big.
Summary of the invention
The technical problems to be solved by the invention: lower for the foam inhibition ability of current defoaming agent, the big problem of dosage mentions
For a kind of stable type defoaming agent and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of stable type defoaming agent, including adsorptivity active matter, defoaming activity agent, dispersion active matter；
The preparation method of the defoaming activity agent, includes the following steps:
Defoaming activity agent: (1) take octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, hexamethyldisiloxane 3 ~ 7:2 in mass ratio ~
5:1 ~ 3 is mixed, and obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 3 ~ 5% is 98% is added, is stirred 3 in 35 ~ 45 DEG C
~ 5h obtains stirring mixture, takes stirring mixture 80 ~ 90:8 in mass ratio ~ 13 that sodium bicarbonate is added, is stirred 2 ~ 3h, takes out
Filter, takes smoke filtrate；
(2) it takes smoke filtrate 2 ~ 5:1 in mass ratio ~ 4 that dodecylene is added, is warming up to 105 ~ 110 DEG C and is stirred 20 ~ 30min, then
Be added smoke filtrate quality 0.5 ~ 1.5% chloroplatinic acid, be stirred 2 ~ 3h, be cooled to 55 ~ 65 DEG C, obtain cooled material, take cooled material by
Allyl alcohol polyoxyalkyl ether, isopropanol is added in 6 ~ 9:13 of mass ratio ~ 18:3 ~ 5, is stirred 30 ~ 40min in 75 ~ 80 DEG C, then plus
Enter the chloroplatinic acid of cooled material quality 1 ~ 3%, keep the temperature 5 ~ 6h, rotary evaporation filters, takes smoke filtrate a up to defoaming activity agent.
The adsorptivity active matter are as follows: take diatomite to crushed 500 meshes, collect sieving particle, take sieving particle by matter
Hexamethyldisiloxane is added than 80 ~ 100:2 ~ 5 in amount, is warming up to 105 ~ 110 DEG C of 2 ~ 3h of heat preservation, is cooled to room temperature to get adsorptivity
Active matter.
The dispersion active matter: it takes dimethicone 1 ~ 3:2 in mass ratio ~ 4 that high boiling point silicon oil mixing is added, obtains mixed matrix
Object takes mixed matrix object 5 ~ 9:3 in mass ratio ~ 7 that white carbon black is added and is stirred, is cooled to room temperature to get dispersion active matter.
Condition is stirred after the addition white carbon black are as follows: is warming up to 150 ~ 200 DEG C and is stirred 5 ~ 7h.
It is characterized in that, the preparation method includes the following steps:
According to the mass fraction, 10 ~ 20 parts of adsorptivity active matters, 30 ~ 50 parts of defoaming activity agent, 25 ~ 35 parts of dispersions active matters, 20 are taken
~ 30 parts of atoleines, 3 ~ 6 parts of emulsifiers, are stirred 10 ~ 15min in 1500 r/min, be warming up to 70 ~ 80 DEG C heat preservation 30 ~
50min adds the thickener of emulsifier quality 10 ~ 20%, adjusts pH to 6.8 ~ 7, is cooled to room temperature to get stable type defoaming
Agent.
The emulsifier are as follows: take MS-1 7 ~ 10:1 in mass ratio ~ 3:3 ~ 6 that lauryl sodium sulfate, OP-10 mixing is added,
To obtain the final product.
The thickener are as follows: take carragheen 3 ~ 5:4 in mass ratio ~ 6 be added sodium alginate mixing to get.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention is added hexamethyldisiloxane and obtains in a large amount of methyl of diatomite surface grafting using diatomite as raw material
Adsorption activity object, diatomite surface hydroxyl are replaced by methyl, become hydrophobic from hydrophilic, so that it compounds energy with defoaming agent faster
It in water, is spontaneously wet out by water into water phase, is uniformly sprawled in foam surface, while aperture is become larger, adsorb more defoamings and live
Property object, increase adhesive capacity, so that the content of active matter in defoaming agent is improved, to reduce the usage amount of defoaming agent；
(2) present invention is synthesized with octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil etc. for raw material with the method for high containing hydrogen silicone oil telomerization
Silicon oil of low hydrogen content needed for graft reaction, then with dodecylene, allyl alcohol polyoxyalkyl ether, isopropanol carry out silicon hydrogenate addition into
Row side chain graft is modified, obtains polymer, introduces chain alkyl and polyether-based in the polymer, so that improving surface property, prevents
Lotion wall built-up is excessive when only emulsifying, and promotes solid film rupture, so that foam is tended to be unstable, is conducive to defoaming, in the process sodium bicarbonate
Neutralize dense H2SO4Catalyst avoids the generation of a large amount of waste water and the waste of product；
(3) present invention is prepared for dispersion active matter, high boiling-point silicon with the cheap high boiling point silicon oil part higher methyl-silicone oil of fictitious hosts
Oil is made of short chain polysiloxane, and surface tension is low, is easily dispersed and is played defoaming, and dimethicone viscosity is higher, mainly
It being made of long-chain polysiloxanes, solubility is smaller in foamed solution, and defoaming effect persistence is stronger, and suds suppressing properties are stronger, and two
Person, which have complementary advantages, forms compounding, and white carbon black is added, and using its large specific surface area, compound silicone oil is added in the small characteristic of density,
The reduction of hydrophobic treatment the adsorbed hydroxyl content is carried out, helps to enhance dispersibility of the silicone oil in bubbling system, and can hinder
Suitable white carbon black is added in the merging of silicone emulsion droplet in defoaming agent system, forms uniform diameter grain, defoams agent emulsion
With stable defoaming activity.
Specific embodiment
High boiling point silicon oil: 25 DEG C of 50 ~ 150mPas of viscosity；Methyl-silicone oil: 25 DEG C of 500 ~ 700mPas of viscosity；White carbon black:
Hydrophilic, d50=7 ~ 10 μm, specific surface area 300m2/g。
Emulsifier: take MS-1 7 ~ 10:1 in mass ratio ~ 3:3 ~ 6 be added lauryl sodium sulfate, OP-10 mixing to get.
Thickener: take carragheen 3 ~ 5:4 in mass ratio ~ 6 be added sodium alginate mixing to get.
Adsorptivity active matter: taking diatomite to crushed 500 meshes, collects sieving particle, take sieving particle in mass ratio 80 ~
Hexamethyldisiloxane is added in 100:2 ~ 5, is warming up to 105 ~ 110 DEG C of 2 ~ 3h of heat preservation, is cooled to room temperature to get adsorptivity active matter.
Defoaming activity agent: (1) take octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, hexamethyldisiloxane in mass ratio 3 ~
7:2 ~ 5:1 ~ 3 is mixed, and obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 3 ~ 5% is 98% is added, stirs in 35 ~ 45 DEG C
3 ~ 5h is mixed, stirring mixture is obtained, takes stirring mixture 80 ~ 90:8 in mass ratio ~ 13 that sodium bicarbonate is added, it is stirred 2 ~
3h filters, takes smoke filtrate；
(2) it takes smoke filtrate 2 ~ 5:1 in mass ratio ~ 4 that dodecylene is added, is warming up to 105 ~ 110 DEG C and is stirred 20 ~ 30min, then
Be added smoke filtrate quality 0.5 ~ 1.5% chloroplatinic acid, be stirred 2 ~ 3h, be cooled to 55 ~ 65 DEG C, obtain cooled material, take cooled material by
Allyl alcohol polyoxyalkyl ether, isopropanol is added in 6 ~ 9:13 of mass ratio ~ 18:3 ~ 5, is stirred 30 ~ 40min in 75 ~ 80 DEG C, then plus
Enter the chloroplatinic acid of cooled material quality 1 ~ 3%, keep the temperature 5 ~ 6h, rotary evaporation filters, takes smoke filtrate a up to defoaming activity agent.
Dispersion active matter: taking dimethicone 1 ~ 3:2 in mass ratio ~ 4 that high boiling point silicon oil mixing is added, obtain mixed matrix object,
It takes mixed matrix object 5 ~ 9:3 in mass ratio ~ 7 that white carbon black is added, is warming up to 150 ~ 200 DEG C and is stirred 5 ~ 7h, be cooled to room temperature,
Up to dispersion active matter.
A kind of preparation method of stable type defoaming agent, includes the following steps:
According to the mass fraction, 10 ~ 20 parts of adsorptivity active matters, 30 ~ 50 parts of defoaming activity agent, 25 ~ 35 parts of dispersions active matters, 20 are taken
~ 30 parts of atoleines, 3 ~ 6 parts of emulsifiers, are stirred 10 ~ 15min in 1500 r/min, be warming up to 70 ~ 80 DEG C heat preservation 30 ~
50min adds the thickener of emulsifier quality 10 ~ 20%, adjusts pH to 6.8 ~ 7, is cooled to room temperature to get stable type defoaming
Agent.
Embodiment 1
High boiling point silicon oil: 25 DEG C of viscosity 50mPas；Methyl-silicone oil: 25 DEG C of viscosity 500mPas；White carbon black: hydrophilic, d50=7µ
M, specific surface area 300m2/g。
Emulsifier: take MS-1 7:1:3 in mass ratio be added lauryl sodium sulfate, OP-10 mixing to get.
Thickener: take carragheen 3:4 in mass ratio be added sodium alginate mixing to get.
Adsorptivity active matter: taking diatomite to crushed 500 meshes, collects sieving particle, takes sieving particle in mass ratio 80:
2 are added hexamethyldisiloxane, are warming up to 105 DEG C of heat preservation 2h, are cooled to room temperature to get adsorptivity active matter.
Defoaming activity agent: (1) octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, hexamethyldisiloxane in mass ratio 3 are taken:
2:1 mixing, obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 3% is 98% is added, is stirred 3h in 35 DEG C, must stir
Mixture is mixed, takes stirring mixture 80:8 in mass ratio that sodium bicarbonate is added, is stirred 2h, filter, take smoke filtrate；
(2) it takes smoke filtrate 2:1 in mass ratio that dodecylene is added, is warming up to 105 DEG C and is stirred 20min, add smoke filtrate
The chloroplatinic acid of quality 0.5%, is stirred 2h, is cooled to 55 DEG C, obtains cooled material, takes cooled material 6:13:3 in mass ratio that alkene is added
Propyl alcohol polyoxyalkyl ether, isopropanol are stirred 30min in 75 DEG C, add the chloroplatinic acid of cooled material quality 1%, keep the temperature 5h,
Rotary evaporation filters, takes smoke filtrate a up to defoaming activity agent.
Dispersion active matter: it takes dimethicone 1:2 in mass ratio that high boiling point silicon oil mixing is added, obtains mixed matrix object, take mixed
It closes matrix object 5:3 in mass ratio and white carbon black is added, be warming up to 150 DEG C and be stirred 5h, be cooled to room temperature to get dispersion activity
Object.
A kind of preparation method of stable type defoaming agent, includes the following steps:
According to the mass fraction, 10 parts of adsorptivity active matters, 30 parts of defoaming activity agent, 25 parts of dispersion active matters, 20 parts of liquid stones are taken
Wax, 3 parts of emulsifiers, are stirred 10min in 1500 r/min, are warming up to 70 DEG C of heat preservation 30min, add emulsifier quality
10% thickener adjusts pH to 6.8, is cooled to room temperature to get stable type defoaming agent.
Embodiment 2
High boiling point silicon oil: 25 DEG C of viscosity 100mPas；Methyl-silicone oil: 25 DEG C of viscosity 600mPas；White carbon black: hydrophilic, d50=8
μm, specific surface area 300m2/g。
Emulsifier: take MS-1 8:2:5 in mass ratio be added lauryl sodium sulfate, OP-10 mixing to get.
Thickener: take carragheen 4:5 in mass ratio be added sodium alginate mixing to get.
Adsorptivity active matter: taking diatomite to crushed 500 meshes, collects sieving particle, takes sieving particle in mass ratio 90:
4 are added hexamethyldisiloxane, are warming up to 108 DEG C of heat preservation 2.5h, are cooled to room temperature to get adsorptivity active matter.
Defoaming activity agent: (1) octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, hexamethyldisiloxane in mass ratio 5 are taken:
3:2 mixing, obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 4% is 98% is added, is stirred 4h in 40 DEG C, must stir
Mixture is mixed, takes stirring mixture 85:113 in mass ratio that sodium bicarbonate is added, is stirred 2.5h, filter, take smoke filtrate；
(2) it takes smoke filtrate 3:2 in mass ratio that dodecylene is added, is warming up to 108 DEG C and is stirred 25min, add smoke filtrate
The chloroplatinic acid of quality 0.8%, is stirred 2.5h, is cooled to 60 DEG C, obtains cooled material, and cooled material 7:15:4 in mass ratio is taken to be added
Allyl alcohol polyoxyalkyl ether, isopropanol are stirred 35min in 78 DEG C, add the chloroplatinic acid of cooled material quality 2%, heat preservation
5.5h, rotary evaporation filter, take smoke filtrate a up to defoaming activity agent.
Dispersion active matter: it takes dimethicone 2:3 in mass ratio that high boiling point silicon oil mixing is added, obtains mixed matrix object, take mixed
It closes matrix object 7:4 in mass ratio and white carbon black is added, be warming up to 180 DEG C and be stirred 6h, be cooled to room temperature to get dispersion activity
Object.
A kind of preparation method of stable type defoaming agent, includes the following steps:
According to the mass fraction, 15 parts of adsorptivity active matters, 40 parts of defoaming activity agent, 30 parts of dispersion active matters, 25 parts of liquid stones are taken
Wax, 5 parts of emulsifiers, are stirred 12min in 1500 r/min, are warming up to 75 DEG C of heat preservation 40min, add emulsifier quality
15% thickener adjusts pH to 6.9, is cooled to room temperature to get stable type defoaming agent.
Embodiment 3
High boiling point silicon oil: 25 DEG C of viscosity 150mPas；Methyl-silicone oil: 25 DEG C of viscosity 700mPas；White carbon black: hydrophilic, d50=
10 μm, specific surface area 300m2/g。
Emulsifier: take MS-1 10:3:6 in mass ratio be added lauryl sodium sulfate, OP-10 mixing to get.
Thickener: take carragheen 5:6 in mass ratio be added sodium alginate mixing to get.
Adsorptivity active matter: taking diatomite to crushed 500 meshes, collects sieving particle, takes sieving particle in mass ratio
Hexamethyldisiloxane is added in 100:5, is warming up to 110 DEG C of heat preservation 3h, is cooled to room temperature to get adsorptivity active matter.
Defoaming activity agent: (1) octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, hexamethyldisiloxane in mass ratio 7 are taken:
5:3 mixing, obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 5% is 98% is added, is stirred 5h in 45 DEG C, must stir
Mixture is mixed, takes stirring mixture 90:13 in mass ratio that sodium bicarbonate is added, is stirred 3h, filter, take smoke filtrate；
(2) it takes smoke filtrate 5:4 in mass ratio that dodecylene is added, is warming up to 110 DEG C and is stirred 30min, add smoke filtrate
The chloroplatinic acid of quality 1.5%, is stirred 3h, is cooled to 65 DEG C, obtains cooled material, takes cooled material 9:18:5 in mass ratio that alkene is added
Propyl alcohol polyoxyalkyl ether, isopropanol are stirred 40min in 80 DEG C, add the chloroplatinic acid of cooled material quality 3%, keep the temperature 6h,
Rotary evaporation filters, takes smoke filtrate a up to defoaming activity agent.
Dispersion active matter: it takes dimethicone 3:4 in mass ratio that high boiling point silicon oil mixing is added, obtains mixed matrix object, take mixed
It closes matrix object 9:7 in mass ratio and white carbon black is added, be warming up to 200 DEG C and be stirred 7h, be cooled to room temperature to get dispersion activity
Object.
A kind of preparation method of stable type defoaming agent, includes the following steps:
According to the mass fraction, 20 parts of adsorptivity active matters, 50 parts of defoaming activity agent, 35 parts of dispersion active matters, 30 parts of liquid stones are taken
Wax, 6 parts of emulsifiers, are stirred 15min in 1500 r/min, are warming up to 80 DEG C of heat preservation 50min, add emulsifier quality
20% thickener adjusts pH to 7, is cooled to room temperature to get stable type defoaming agent.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking adsorptivity active matter.
Comparative example 2: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking defoaming activity agent.
Comparative example 3: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking dispersion active matter.
Comparative example 4: the defoaming agent of Wuxi City company production.
Defoaming agent prepared by above-described embodiment 1 ~ 3 and comparative example 1 ~ 4 is 80 ~ 90 DEG C, in the case of pH=9 in temperature, by disappearing
The mass ratio of infusion and water is that 1:4 adds water to be diluted, disappearing after then respectively taking 5 drops to evaluate dilution by the way of continuous bubbling
Antifoam performance and suds suppressing properties of the infusion in frothing media stoste；As a result as shown in table 1 below.
It should be noted that antifoam performance is so that foam how long is can reach minimum altitude according to the addition of defoaming agent 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 restored to according to foam
The time of needs is spent to judge, the time is longer, and suds suppressing properties are better.
Dosage test: at room temperature, being added the sodium dodecyl benzene sulfonate aqueous solution of 100 mL, 2 wt% in 1L graduated cylinder, past
Nitrogen is passed through in expanding foam solution, record foam reaches 300 mL scales, 3% ~ 8% defoaming agent is added, foam residual volume is fewer, and explanation disappears
It is better to steep suds suppressing properties.It repeats experiment three times, is averaged.
Table 1: suds suppressing properties
Table 2: dosage tests table
In summary, defoaming agent foam inhibition ability of the invention is higher, and dosage is small, is worth of widely use.
Claims (7)
1. a kind of stable type defoaming agent, which is characterized in that including adsorptivity active matter, defoaming activity agent, dispersion active matter；
The preparation method of the defoaming activity agent, includes the following steps:
Defoaming activity agent: (1) take octamethylcy-clotetrasiloxane, high containing hydrogen silicone oil, methyl methacrylate 3 ~ 7:2 in mass ratio ~
5:1 ~ 3 is mixed, and obtains mixture, and the sulfuric acid that the mass fraction of mixture quality 3 ~ 5% is 98% is added, is stirred 3 in 35 ~ 45 DEG C
~ 5h obtains stirring mixture, takes stirring mixture 80 ~ 90:8 in mass ratio ~ 13 that sodium bicarbonate is added, is stirred 2 ~ 3h, takes out
Filter, takes smoke filtrate；
(2) it takes smoke filtrate 2 ~ 5:1 in mass ratio ~ 4 that dodecylene is added, is warming up to 105 ~ 110 DEG C and is stirred 20 ~ 30min, then
Be added smoke filtrate quality 0.5 ~ 1.5% chloroplatinic acid, be stirred 2 ~ 3h, be cooled to 55 ~ 65 DEG C, obtain cooled material, take cooled material by
Allyl alcohol polyoxyalkyl ether, isopropanol is added in 6 ~ 9:13 of mass ratio ~ 18:3 ~ 5, is stirred 30 ~ 40min in 75 ~ 80 DEG C, then plus
Enter the chloroplatinic acid of cooled material quality 1 ~ 3%, keep the temperature 5 ~ 6h, rotary evaporation filters, takes smoke filtrate a up to defoaming activity agent.
2. stable type defoaming agent according to claim 1, which is characterized in that the adsorptivity active matter are as follows: take diatomite
It crushed 500 meshes, collect sieving particle, take sieving particle 80 ~ 100:2 in mass ratio ~ 5 that hexamethyldisiloxane, heating is added
To 105 ~ 110 DEG C of 2 ~ 3h of heat preservation, it is cooled to room temperature to get adsorptivity active matter.
3. stable type defoaming agent according to claim 1, which is characterized in that the dispersion active matter: take dimethicone
High boiling point silicon oil mixing is added in 1 ~ 3:2 in mass ratio ~ 4, obtains mixed matrix object, and mixed matrix object 5 ~ 9:3 in mass ratio ~ 7 is taken to be added
White carbon black is stirred, and is cooled to room temperature to get dispersion active matter.
4. stable type defoaming agent according to claim 3, which is characterized in that be stirred item after the addition white carbon black
Part are as follows: be warming up to 150 ~ 200 DEG C and be stirred 5 ~ 7h.
5. a kind of preparation method of the stable type defoaming agent as described in claim 1 ~ 4 any one, which is characterized in that the preparation
Method includes the following steps:
According to the mass fraction, 10 ~ 20 parts of adsorptivity active matters, 30 ~ 50 parts of defoaming activity agent, 25 ~ 35 parts of dispersions active matters, 20 are taken
~ 30 parts of atoleines, 3 ~ 6 parts of emulsifiers, are stirred 10 ~ 15min in 1500 r/min, be warming up to 70 ~ 80 DEG C heat preservation 30 ~
50min adds the thickener of emulsifier quality 10 ~ 20%, adjusts pH to 6.8 ~ 7, is cooled to room temperature to get stable type defoaming
Agent.
6. the preparation method of stable type defoaming agent according to claim 5, which is characterized in that the emulsifier are as follows: take MS-
17 ~ 10:1 in mass ratio ~ 3:3 ~ 6 be added lauryl sodium sulfate, OP-10 mixing to get.
7. the preparation method of stable type defoaming agent according to claim 5, which is characterized in that the thickener are as follows: card taking
Draw glue 3 ~ 5:4 in mass ratio ~ 6 be added sodium alginate mixing to get.
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| CN108192579A (en) * | 2017-12-30 | 2018-06-22 | 吴迪 | A kind of motor vehicle antifreeze fluid and preparation method thereof |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103342818A (en) * | 2013-07-16 | 2013-10-09 | 扬州晨化科技集团有限公司 | Preparation method of polyether modified polysiloxane foam stabilizer |
| CN104225965A (en) * | 2014-09-24 | 2014-12-24 | 湖北兴瑞化工有限公司 | Organosilicone defoamer and preparation method thereof |
| CN105152255A (en) * | 2015-09-23 | 2015-12-16 | 苏州市晶协高新电子材料有限公司 | Preparation method of defoaming agent for wastewater treatment |
| CN105418933A (en) * | 2015-12-18 | 2016-03-23 | 江西蓝星星火有机硅有限公司 | Preparation method of long-chain alkyl polyether co-modified silicone oil |
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