CN106621479A - Efficient defoaming agent - Google Patents
Efficient defoaming agent Download PDFInfo
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- CN106621479A CN106621479A CN201611059239.1A CN201611059239A CN106621479A CN 106621479 A CN106621479 A CN 106621479A CN 201611059239 A CN201611059239 A CN 201611059239A CN 106621479 A CN106621479 A CN 106621479A
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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
- B01D19/0463—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings
- B01D19/0468—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups
- B01D19/0472—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups which contain Si-atoms
-
- 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
-
- 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
- B01D19/0431—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing aromatic rings
- B01D19/0436—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing aromatic rings with substituted groups
- B01D19/0459—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing aromatic rings with substituted groups which contain halogen-atoms
-
- 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
- B01D19/0463—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings
-
- 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
- B01D19/0463—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings
- B01D19/0468—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups
- B01D19/0477—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups which contain N-atoms
-
- 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
- B01D19/0463—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings
- B01D19/0468—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups
- B01D19/0486—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing rings other than aromatic rings with substituted groups which contain S-atoms
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses an efficient defoaming agent and belongs to the technical field of chemical industry. The efficient defoaming agent is particularly prepared from the following substances: polyether-modified polysiloxane, octadecanol, n-butyl alcohol, a modified nanometer kaolin powder, deionized water, dioctyl sodium sulfosuccinate, sodium stearate, propylene ester fatty acid and auxiliaries. The components are matched reasonably, and the finally prepared defoaming agent has high defoaming and foam-inhibiting properties, high defoaming rate, high temperature resistance, high acid and alkali resistance, stable quality in long-term storage and use, and good use value.
Description
Technical field
The invention belongs to chemical technology field, and in particular to a kind of high effective antifoaming agent.
Background technology
Defoamer, is also called defrother or foamicide, and many bubbles for affecting and producing can be produced during industrial production
Foam, needs to add defoamer.It is widely used in removing latex, textile sizing, food fermentation, biological medicine, coating, oil
The unwanted bubbles produced during the industry productions such as work, papermaking, industry cleaning link, sewage disposal.However, produce on existing market
Defoamer, there are problems that quality is unstable, antifoaming speed slow mostly,.
The content of the invention
The invention discloses a kind of high effective antifoaming agent, with stay in grade, froth breaking speed is fast the characteristics of.
The present invention is achieved through the following technical solutions：
A kind of high effective antifoaming agent, is made up of the material of following weight portion：
24 ~ 27 parts of polyether modified siloxanes, 15 ~ 18 parts of octadecyl alcolols, 14 ~ 16 parts of n-butanols, 12 ~ 15 parts of modified Nano kaolin
Powder, 350 ~ 370 parts of deionized waters, 3 ~ 6 parts of Aerosol OTs, 2 ~ 4 parts of odium stearate, 3 ~ 5 parts of propylene glycol fatties
Acid esters, 4 ~ 6 parts of auxiliary agents；The auxiliary agent is made up of the material of following weight portion：12 ~ 15 parts of Methacrylamides, 6 ~ 9 parts of dimethyl
Formamide, 5 ~ 8 parts of diethylene glycol monohexyl ethers, 3 ~ 5 parts of sodium citrates, 2 ~ 4 parts of chitosan oligosaccharides, 1 ~ 2 part of pentachlorophenol, 2 ~ 3 parts of sulfonation
Oil；The modified Nano kaolin powder is made up of the material of following weight portion：90 ~ 100 parts of kaolin powder, 12 ~ 15 parts of methyl alcohol, 4 ~
8 parts of butyl titanates, 3 ~ 6 parts of sulfonic acid chlorides.
Preferably, it is made up of the material of following weight portion：
25 parts of polyether modified siloxanes, 16 parts of octadecyl alcolols, 15 parts of n-butanols, 13 parts of modified Nano kaolin powder, 360 parts of deionizations
Water, 5 parts of Aerosol OTs, 3 parts of odium stearate, 4 parts of methyl glycol fatty acid esters, 5 parts of auxiliary agents；The auxiliary agent is by such as
The material of lower weight portion is made：13 portions of Methacrylamides, 8 portions of dimethylformamides, 7 portions of diethylene glycol monohexyl ethers, 4 portions of lemons
Sour sodium, 3 parts of chitosan oligosaccharides, 1.5 parts of pentachlorophenols, 2.5 parts of sulfonated oils；The modified Nano kaolin powder by following weight portion thing
Matter is made：95 parts of kaolin powder, 13 parts of methyl alcohol, 6 parts of butyl titanates, 5 parts of sulfonic acid chlorides.
Further, the preparation method of the auxiliary agent is specially：First by dimethylformamide, diethylene glycol monohexyl ether, sulphur
Carburetion mixes jointly, is put into reactor with 300 ~ 400 revs/min of rotating speed 30 ~ 40min of stir process, then by methyl-prop
Acrylamide, sodium citrate, chitosan oligosaccharide, pentachlorophenol mixing are added after pulverizing, and it is 40 ~ 44 DEG C that heating keeps temperature in reactor,
Again 50 ~ 60min is stirred with 600 ~ 700 revs/min of rotating speed, last re-dry is crushed.
Further, the preparation method of the modified Nano kaolin powder is specially：First kaolin powder is put into quality point
Number is 30 ~ 35min of immersion treatment in 7% tartaric acid solution, after deionized water is rinsed well after taking-up, then puts it into temperature
Spend for 1.2 ~ 1.4h of calcination processing under conditions of 740 ~ 790 DEG C, then jointly put it with methyl alcohol, butyl titanate, sulfonic acid chloride
In entering reactor, control pressure is 0.4 ~ 0.5MPa, and heating keeping temperature is 70 ~ 75 DEG C, with 800 ~ 900 revs/min of rotating speed
Take out after 40 ~ 50min of stir process, be finally milled to granular size for 40 ~ 70nm.
A kind of preparation method of high effective antifoaming agent, comprises the steps：
（1）First by polyether modified siloxane, octadecyl alcolol, n-butanol, methyl glycol fatty acid ester and auxiliary agent, jointly mixing is put into first
In reactor, 58 ~ 62 DEG C are heated to, improve pressure to 0.2 ~ 0.3MPa, be stirred until homogeneous with 500 ~ 600 revs/min of rotating speed
It is standby afterwards；
（2）By step（1）Gained material is put into the second reactor, while adding deionized water, butanedioic acid di-isooctyl sulfonic acid
Sodium, odium stearate composition, by temperature 67 ~ 71 DEG C are promoted to, and pressure are improved to 0.3 ~ 0.4MPa, with 700 ~ 800 revs/min turn
Speed is standby after stirring；
（3）By step（2）Gained material is put into the 3rd reactor, and modified Nano kaolin powder is added, and ultrasonic disperse is uniform
Afterwards.
Further, step（3）Described in ultrasonic disperse when ultrasonic wave frequency be 40 ~ 60kHz.
The present invention has the advantages that：
The present invention reduces making for high radioactive substance with polyether modified siloxane, octadecyl alcolol, n-butanol as main active
With cooperation methyl glycol fatty acid ester, Aerosol OT, the use of odium stearate, it is ensured that defoamer entirety
Froth breaking, suds effect, the auxiliary component of addition can not only effectively facilitate the performance of main active effect, while and can improve
There is the situation generation that viscosity change is big, the failures such as crosslinking tendency occur, quality when improve storage, using in overall long-term storage
Stability, the modified Nano kaolin powder of addition has good dispersiveness, heatproof, resistance to acids and bases, can well promote froth breaking
Infiltration of the agent particle in bubble film, destroys the stability of bubble film, improves froth breaking speed.Finally in each composition
Under common mating reaction, the obtained defoamer of the present invention has good froth breaking, suds characteristic, and froth breaking speed is very fast, heatproof, resistance to
Acidity of Aikalinity is good, and the stay in grade that long term storage is used, and has good use value.
Specific embodiment
Embodiment 1
A kind of high effective antifoaming agent, is made up of the material of following weight portion：
24 parts of polyether modified siloxanes, 15 parts of octadecyl alcolols, 14 parts of n-butanols, 12 parts of modified Nano kaolin powder, 350 parts of deionizations
Water, 3 parts of Aerosol OTs, 2 parts of odium stearate, 3 parts of methyl glycol fatty acid esters, 4 parts of auxiliary agents；The auxiliary agent is by such as
The material of lower weight portion is made：12 portions of Methacrylamides, 6 portions of dimethylformamides, 5 portions of diethylene glycol monohexyl ethers, 3 portions of lemons
Sour sodium, 2 parts of chitosan oligosaccharides, 1 part of pentachlorophenol, 2 parts of sulfonated oils；The modified Nano kaolin powder by following weight portion material system
Into：90 parts of kaolin powder, 12 parts of methyl alcohol, 4 parts of butyl titanates, 3 parts of sulfonic acid chlorides.
Further, the preparation method of the auxiliary agent is specially：First by dimethylformamide, diethylene glycol monohexyl ether, sulphur
Carburetion mixes jointly, is put into reactor with 350 revs/min of rotating speed stir process 35min, then by Methacrylamide,
Sodium citrate, chitosan oligosaccharide, pentachlorophenol mixing pulverize after add, heating keep reactor in temperature be 42 DEG C, then with 650 turns/
The rotating speed stirring 55min of minute, last re-dry is crushed.
Further, the preparation method of the modified Nano kaolin powder is specially：First kaolin powder is put into quality point
Number is immersion treatment 33min in 7% tartaric acid solutions, after deionized water is rinsed well after taking-up, then puts it into temperature and is
Calcination processing 1.3h under conditions of 760 DEG C, then with methyl alcohol, butyl titanate, sulfonic acid chloride is jointly put into it in reactor, control
Pressing pressure is 0.45MPa, and heating keeping temperature is 72 DEG C, to take out after 850 revs/min of rotating speed stir process 43min, finally
Granular size is milled to for 40 ~ 70nm.
A kind of preparation method of high effective antifoaming agent, comprises the steps：
（1）First by polyether modified siloxane, octadecyl alcolol, n-butanol, methyl glycol fatty acid ester and auxiliary agent, jointly mixing is put into first
In reactor, 60 DEG C are heated to, improve pressure to 0.25MPa, it is standby after being stirred until homogeneous with 550 revs/min of rotating speed；
（2）By step（1）Gained material is put into the second reactor, while adding deionized water, butanedioic acid di-isooctyl sulfonic acid
Sodium, odium stearate composition, by temperature 68 DEG C are promoted to, and improve pressure to 0.35MPa, are stirred with 750 revs/min of rotating speed
It is standby afterwards；
（3）By step（2）Gained material is put into the 3rd reactor, and modified Nano kaolin powder is added, and ultrasonic disperse is uniform
Afterwards.
Further, step（3）Described in ultrasonic disperse when ultrasonic wave frequency be 50kHz.
Embodiment 2
A kind of high effective antifoaming agent, is made up of the material of following weight portion：
25 parts of polyether modified siloxanes, 16 parts of octadecyl alcolols, 15 parts of n-butanols, 13 parts of modified Nano kaolin powder, 360 parts of deionizations
Water, 5 parts of Aerosol OTs, 3 parts of odium stearate, 4 parts of methyl glycol fatty acid esters, 5 parts of auxiliary agents；The auxiliary agent is by such as
The material of lower weight portion is made：13 portions of Methacrylamides, 8 portions of dimethylformamides, 7 portions of diethylene glycol monohexyl ethers, 4 portions of lemons
Sour sodium, 3 parts of chitosan oligosaccharides, 1.5 parts of pentachlorophenols, 2.5 parts of sulfonated oils；The modified Nano kaolin powder by following weight portion thing
Matter is made：95 parts of kaolin powder, 13 parts of methyl alcohol, 6 parts of butyl titanates, 5 parts of sulfonic acid chlorides.Remaining method and step is with embodiment 1.
Embodiment 3
A kind of high effective antifoaming agent, is made up of the material of following weight portion：
27 parts of polyether modified siloxanes, 18 parts of octadecyl alcolols, 16 parts of n-butanols, 15 parts of modified Nano kaolin powder, 370 parts of deionizations
Water, 6 parts of Aerosol OTs, 4 parts of odium stearate, 5 parts of methyl glycol fatty acid esters, 6 parts of auxiliary agents；The auxiliary agent is by such as
The material of lower weight portion is made：15 portions of Methacrylamides, 9 portions of dimethylformamides, 8 portions of diethylene glycol monohexyl ethers, 5 portions of lemons
Sour sodium, 4 parts of chitosan oligosaccharides, 2 parts of pentachlorophenols, 3 parts of sulfonated oils；The modified Nano kaolin powder by following weight portion material system
Into：100 parts of kaolin powder, 15 parts of methyl alcohol, 8 parts of butyl titanates, 6 parts of sulfonic acid chlorides.Remaining method and step is with embodiment 1.
Comparative example 1
This comparative example 1 compared with Example 1, does not contain modified Nano kaolin powder in its composition, method in addition is walked
Rapid all same.
Comparative example 2
This comparative example 2 compared with Example 2, does not contain auxiliary agent in its composition, method and step all same in addition.
Comparative example 3
This comparative example 3 compared with Example 3, with etc. mass parts conventional modified white carbon black substituting modification nano kaoline powder
Composition, method and step all same in addition.
Control group
Existing silicone defoamer on market.
In order to contrast effect of the present invention, performance test is carried out to the corresponding defoamer of above-mentioned seven kinds of methods, specifically by thing
The emulsion for first preparing is poured into 1000mL graduated cylinders, and the volume height for keeping foaming is 400mL（Represented with milliliter number）, then
The μ L of corresponding froth breaking agent solution 300 are pipetted rapidly to be placed in 1000mL graduated cylinders, while opening stopwatch, count defoaming effect；Then
Dewatering ability test is carried out, specifically defoamer correspondence is fitted into specification identical sebific duct, with the rotating speed of 5000r/min
Lower centrifugation, the most long S in short-term for detecting that being significantly separated occurs in liquid, with this stability of defoamer is evaluated；Concrete contrast number
According to as shown in table 1 below：
Table 1
| A（s） | Froth breaking quality | B（s） | S（min） | |
| Embodiment 1 | 10 | Froth breaking is complete | 16 | 52 |
| Embodiment 2 | 8 | Froth breaking is complete | 12 | 55 |
| Embodiment 3 | 9 | Froth breaking is complete | 14 | 53 |
| Comparative example 1 | 75 | Not exclusively, resid vol is highly 94mL to froth breaking | 134 | 31 |
| Comparative example 2 | 64 | Not exclusively, resid vol is highly 85mL to froth breaking | 142 | 33 |
| Comparative example 3 | 33 | Not exclusively, resid vol is highly 33mL to froth breaking | 71 | 42 |
| Control group | 52 | Not exclusively, resid vol is highly 78mL to froth breaking | 178 | 24 |
Note：A described in upper table 1 is represented from froth breaking and started to eliminating the duration that volume height is experienced by the bubble of 300mL；
The froth breaking quality refers to that overall bubble situation, without significant change, can be considered the state at the end of froth breaking；The B is represented from froth breaking
Start to froth breaking to terminate experienced duration.
By in upper table 1 as can be seen that the obtained defoamer antifoaming speed of the present invention is fast, froth breaking quality is good, while and having very
Good stability, use value is higher.
Claims (6)
1. a kind of high effective antifoaming agent, it is characterised in that be made up of the material of following weight portion：
24 ~ 27 parts of polyether modified siloxanes, 15 ~ 18 parts of octadecyl alcolols, 14 ~ 16 parts of n-butanols, 12 ~ 15 parts of modified Nano kaolin
Powder, 350 ~ 370 parts of deionized waters, 3 ~ 6 parts of Aerosol OTs, 2 ~ 4 parts of odium stearate, 3 ~ 5 parts of propylene glycol fatties
Acid esters, 4 ~ 6 parts of auxiliary agents；The auxiliary agent is made up of the material of following weight portion：12 ~ 15 parts of Methacrylamides, 6 ~ 9 parts of dimethyl
Formamide, 5 ~ 8 parts of diethylene glycol monohexyl ethers, 3 ~ 5 parts of sodium citrates, 2 ~ 4 parts of chitosan oligosaccharides, 1 ~ 2 part of pentachlorophenol, 2 ~ 3 parts of sulfonation
Oil；The modified Nano kaolin powder is made up of the material of following weight portion：90 ~ 100 parts of kaolin powder, 12 ~ 15 parts of methyl alcohol, 4 ~
8 parts of butyl titanates, 3 ~ 6 parts of sulfonic acid chlorides.
2. a kind of high effective antifoaming agent according to claim 1, it is characterised in that be made up of the material of following weight portion：
25 parts of polyether modified siloxanes, 16 parts of octadecyl alcolols, 15 parts of n-butanols, 13 parts of modified Nano kaolin powder, 360 parts of deionizations
Water, 5 parts of Aerosol OTs, 3 parts of odium stearate, 4 parts of methyl glycol fatty acid esters, 5 parts of auxiliary agents；The auxiliary agent is by such as
The material of lower weight portion is made：13 portions of Methacrylamides, 8 portions of dimethylformamides, 7 portions of diethylene glycol monohexyl ethers, 4 portions of lemons
Sour sodium, 3 parts of chitosan oligosaccharides, 1.5 parts of pentachlorophenols, 2.5 parts of sulfonated oils；The modified Nano kaolin powder by following weight portion thing
Matter is made：95 parts of kaolin powder, 13 parts of methyl alcohol, 6 parts of butyl titanates, 5 parts of sulfonic acid chlorides.
3. a kind of high effective antifoaming agent according to claim 1 and 2, it is characterised in that the preparation method of the auxiliary agent is concrete
For：First dimethylformamide, diethylene glycol monohexyl ether, sulfonated oil are mixed jointly, is put into reactor with 300 ~ 400 revs/min
Rotating speed 30 ~ the 40min of stir process of clock, then pulverizes Methacrylamide, sodium citrate, chitosan oligosaccharide, pentachlorophenol mixing
After add, it is 40 ~ 44 DEG C that heating keeps temperature in reactor, then stirs 50 ~ 60min with 600 ~ 700 revs/min of rotating speed, most
Afterwards re-dry is crushed.
4. a kind of high effective antifoaming agent according to claim 1 and 2, it is characterised in that the modified Nano kaolin powder
Preparation method is specially：First kaolin powder is put into 30 ~ 35min of immersion treatment in the tartaric acid solution that mass fraction is 7%, is taken
Go out after rear deionized water rinses well, then put it into temperature for 1.2 ~ 1.4h of calcination processing under conditions of 740 ~ 790 DEG C, so
It is put into reactor jointly with methyl alcohol, butyl titanate, sulfonic acid chloride afterwards, control pressure is 0.4 ~ 0.5MPa, heating keeps
Temperature is 70 ~ 75 DEG C, to take out after 800 ~ 900 revs/min of rotating speed 40 ~ 50min of stir process, is finally milled to granular size
For 40 ~ 70nm.
5. a kind of preparation method of high effective antifoaming agent as claimed in claim 1 or 2, it is characterised in that comprise the steps：
（1）First by polyether modified siloxane, octadecyl alcolol, n-butanol, methyl glycol fatty acid ester and auxiliary agent, jointly mixing is put into first
In reactor, 58 ~ 62 DEG C are heated to, improve pressure to 0.2 ~ 0.3MPa, be stirred until homogeneous with 500 ~ 600 revs/min of rotating speed
It is standby afterwards；
（2）By step（1）Gained material is put into the second reactor, while adding deionized water, butanedioic acid di-isooctyl sulfonic acid
Sodium, odium stearate composition, by temperature 67 ~ 71 DEG C are promoted to, and pressure are improved to 0.3 ~ 0.4MPa, with 700 ~ 800 revs/min turn
Speed is standby after stirring；
（3）By step（2）Gained material is put into the 3rd reactor, and modified Nano kaolin powder is added, and ultrasonic disperse is uniform
Afterwards.
6. a kind of preparation method of high effective antifoaming agent according to claim 5, it is characterised in that step（3）Described in surpass
The frequency of ultrasonic wave is 40 ~ 60kHz when sound disperses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611059239.1A CN106621479A (en) | 2016-11-28 | 2016-11-28 | Efficient defoaming agent |
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|---|---|---|---|---|
| CN108176084A (en) * | 2017-12-29 | 2018-06-19 | 常德金德新材料科技股份有限公司 | A kind of antifoaming agent and preparation method |
| CN113350833A (en) * | 2021-05-12 | 2021-09-07 | 深圳市点石源水处理技术有限公司 | Defoaming agent and preparation method thereof |
| CN114534320A (en) * | 2021-12-31 | 2022-05-27 | 南通市晗泰化工有限公司 | Micro-explosion slow-release type defoaming agent and preparation process thereof |
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Cited By (4)
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|---|---|---|---|---|
| CN108176084A (en) * | 2017-12-29 | 2018-06-19 | 常德金德新材料科技股份有限公司 | A kind of antifoaming agent and preparation method |
| CN113350833A (en) * | 2021-05-12 | 2021-09-07 | 深圳市点石源水处理技术有限公司 | Defoaming agent and preparation method thereof |
| CN113350833B (en) * | 2021-05-12 | 2022-12-06 | 深圳市点石源水处理技术有限公司 | Defoaming agent and preparation method thereof |
| CN114534320A (en) * | 2021-12-31 | 2022-05-27 | 南通市晗泰化工有限公司 | Micro-explosion slow-release type defoaming agent and preparation process thereof |
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Application publication date: 20170510 |