CN111569474A - Organic silicon emulsion defoaming agent in textile size and preparation method thereof - Google Patents
Organic silicon emulsion defoaming agent in textile size and preparation method thereof Download PDFInfo
- Publication number
- CN111569474A CN111569474A CN202010465016.5A CN202010465016A CN111569474A CN 111569474 A CN111569474 A CN 111569474A CN 202010465016 A CN202010465016 A CN 202010465016A CN 111569474 A CN111569474 A CN 111569474A
- Authority
- CN
- China
- Prior art keywords
- emulsion
- percent
- textile size
- defoaming agent
- defoaming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention belongs to the technical field of defoaming agents, and particularly relates to an organic silicon emulsion defoaming agent in textile size and a preparation method thereof, wherein the preparation method of the emulsion defoaming agent comprises the following steps: the method comprises the following steps: mixing ethylene oxide, an initiator, propylene oxide, butylene oxide and a catalyst to prepare polyether polyol; step two: mixing and stirring silicone oil, water and an emulsifier; step three: adding the polyether polyol prepared in the first step after stirring; step four: add stabilizer in the emulsion of completion of stewing, homogeneity in the isotropic symmetry 50min can, in this application file, through adding polyether polyol in the raw materials of preparation defoaming agent, can effectual improvement defoaming agent defoaming performance under its boiling point, can not pollute the prevention and cure thick liquids simultaneously, reduce the influence, can guarantee the abundant liquid mixture of defoaming agent in textile size simultaneously through the suspending agent of adding effectively, improve defoaming ability.
Description
Technical Field
The invention relates to the technical field of defoaming agents, in particular to an organic silicon emulsion defoaming agent in textile size and a preparation method thereof.
Background
Defoaming agents are substances that reduce the surface tension of water, solutions, suspensions, etc., prevent the formation of foam, or reduce or eliminate the original foam.
The defoamer should have the following properties: the defoaming power is strong, and the dosage is less; adding the product into a foaming system does not influence the basic properties of the system, namely does not react with a system to be defoamed; surface tension is small; fourthly, the balance between the surface and the surface is good; the heat resistance is good; sixthly, the diffusivity and the permeability are good, and the positive spreading coefficient is higher; the chemical stability and the oxidation resistance are strong; the gas has good solubility and permeability; ninthly, the dissolubility in the foaming solution is small; the red (R) has no physiological activity and high safety.
The application of the defoaming agent is very wide, such as the food industry, the paper industry, the water treatment industry, the oil extraction industry, the printing and dyeing industry, the coating industry, the detergent industry, the rubber latex industry, the aerosol industry, the daily chemical industry, the medical industry, the dairy industry and the like.
The silicone emulsion defoaming agent is an oil-in-water emulsion prepared by taking silicone oil as a raw material and adding a compounding agent for emulsification. The defoaming agent is nontoxic, tasteless, non-corrosive, strong in defoaming capability, good in foam inhibition effect, good in thermal stability, wide in use temperature range, good in chemical stability, physiologically inert, and small in dosage, and the dosage is generally several to hundreds of ppm; can be widely used for petroleum, chemical industry, textile, printing and dyeing, environmental protection, paper making, medicine, industrial water treatment and the like.
The organosilicon emulsion defoamer used in the textile size needs to ensure the low-temperature (about 80 ℃) defoaming performance when in use, effective adaptation is not carried out aiming at the temperature in the prior art, so that the defoamer used in the textile size is a common defoamer, the defoaming performance of the defoamer is not improved aiming at textile products, and the defoamer is not beneficial to textile development.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems associated with defoaming agents in existing textile slurries.
Therefore, the invention aims to provide an organic silicon emulsion defoaming agent in textile size and a preparation method thereof, which can improve the rapid elimination of foams in the textile size, improve the defoaming performance, realize targeted foam treatment and reduce the influence on textile materials.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
an organosilicon emulsion defoaming agent in textile size comprises silicone oil, water, a stabilizing agent, a suspending agent, ethylene oxide, an initiator, propylene oxide, butylene oxide, a catalyst and an emulsifying agent.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the emulsion defoamer is prepared from the following materials in proportion:
22.2 to 28.7 percent of silicone oil, 25.5 to 35 percent of water, 8.7 to 12.6 percent of stabilizer, 12.3 to 16.5 percent of suspending agent, 3.2 to 6.4 percent of ethylene oxide, 5.6 to 7.5 percent of initiator, 2.8 to 5.5 percent of propylene oxide, 1.7 to 3.4 percent of butylene oxide, 3.5 to 6.4 percent of catalyst and 4.2 to 8.3 percent of emulsifier.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the stabilizer is a magnesium-aluminum compound containing fatty acid zinc.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the suspending agent is specifically an aqueous suspending agent, the catalyst is specifically a liquid catalyst, and the emulsifier is specifically a non-ionic emulsifier, preferably any one of polyoxyethylene ether, polyoxypropylene ether or polyol fatty acid ester.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the initiator is preferably any one of propylene glycol, glycerol, trimethylolpropane or ethylenediamine pentaerythritol.
A preparation method of an organic silicon emulsion defoamer in textile slurry comprises the following steps:
the method comprises the following steps: mixing ethylene oxide, an initiator, propylene oxide, butylene oxide and a catalyst to prepare polyether polyol;
step two: mixing and stirring the silicone oil, the water and the emulsifier for 80-120 min;
step three: after stirring, adding the polyether polyol prepared in the first step, then increasing the ambient temperature to 55-65 ℃, stirring for 50min again, and then standing for 2 days;
step four: and adding a stabilizer into the emulsion after standing, and homogenizing in a homogenizer for 50 min.
Compared with the prior art: need guarantee its low temperature (about 80 ℃) defoaming performance with organosilicon emulsion defoaming agent that uses in textile size when using, carry out effectual adaptation to this temperature among the prior art, the defoaming agent that causes to use in the textile size is general defoaming agent, its defoaming performance does not improve to the textile product, be unfavorable for textile development, in this application document, through adding polyether polyol in the raw materials of preparation defoaming agent, can effectually improve the defoaming performance of defoaming agent under its boiling point (200 ℃), can not pollute the prevention and cure thick liquids simultaneously, reduce the influence, can guarantee the abundant liquid mixture of defoaming agent in the textile size effectively through the suspending agent that adds simultaneously, improve defoaming ability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic flow structure diagram of an organosilicon emulsion defoamer in textile size and a preparation method thereof.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
The invention provides an organic silicon emulsion defoaming agent in textile size, which is prepared from the following materials in proportion:
26% silicone oil, 27% water, 10% stabilizer, 14% suspending agent, 4% ethylene oxide, 6% initiator, 3% propylene oxide, 2% butylene oxide, 3.5% catalyst, and 4.5% emulsifier.
Wherein the stabilizer is a magnesium-aluminum complex containing fatty acid zinc.
The suspending agent is specifically an aqueous suspending agent, the catalyst is specifically a liquid catalyst, and the emulsifier is specifically a nonionic emulsifier, preferably polyoxyethylene ether.
Among them, the initiator is preferably propylene glycol.
A preparation method of an organic silicon emulsion defoamer in textile slurry comprises the following steps:
the method comprises the following steps: mixing ethylene oxide, an initiator, propylene oxide, butylene oxide and a catalyst to prepare polyether polyol;
step two: mixing and stirring silicone oil, water and an emulsifier for 80 min;
step three: after stirring, adding the polyether polyol prepared in the first step, then increasing the ambient temperature to 55-65 ℃, stirring for 50min again, and then standing for 2 days;
step four: and adding a stabilizer into the emulsion after standing, and homogenizing in a homogenizer for 50 min.
Example 2
An organic silicon emulsion defoaming agent in textile size is prepared from the following materials in percentage by weight:
23% silicone oil, 30% water, 10% stabilizer, 13% suspending agent, 4% ethylene oxide, 6% initiator, 3% propylene oxide, 2% butylene oxide, 4% catalyst and 5% emulsifier.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the stabilizer is a magnesium-aluminum compound containing fatty acid zinc.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the suspending agent is specifically an aqueous suspending agent, the catalyst is specifically a liquid catalyst, and the emulsifier is specifically a non-ionic emulsifier, preferably any one of polyoxyethylene ether, polyoxypropylene ether or polyol fatty acid ester.
As a preferable embodiment of the silicone emulsion defoaming agent in the textile size, the textile size comprises: the initiator is preferably any one of propylene glycol, glycerol, trimethylolpropane or ethylenediamine pentaerythritol.
A preparation method of an organic silicon emulsion defoamer in textile slurry comprises the following steps:
the method comprises the following steps: mixing ethylene oxide, an initiator, propylene oxide, butylene oxide and a catalyst to prepare polyether polyol;
step two: mixing and stirring the silicone oil, the water and the emulsifier for 80-120 min;
step three: after stirring, adding the polyether polyol prepared in the first step, then increasing the ambient temperature to 55-65 ℃, stirring for 50min again, and then standing for 2 days;
step four: and adding a stabilizer into the emulsion after standing, and homogenizing in a homogenizer for 50 min.
The defoamers produced in the two examples above were tested, respectively identified as A, B, A, B defoamers were placed into two textile pulps with the same raw materials, stirred in the same manner for 20min, and then the change of the two defoamers in the textile pulps was observed, and the complete defoaming time and defoaming and dispersing efficiencies were mainly recorded, as follows:
serial number | Complete defoaming time | Defoaming efficiency | Efficiency of dispersion |
A | 7min/m2 | 90.2% | 5min/m2 |
B | 6.7min/m2 | 92.4% | 4.7min/m2 |
As can be seen from the above table, the defoaming performance and the dispersibility of the defoaming agent prepared from the different raw materials by the same method in the two embodiments of the present application are both significantly improved compared with the prior art, and the defoaming efficiency is over 90%, so as to achieve the purpose of rapid defoaming.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. An organic silicon emulsion defoaming agent in textile size is characterized in that: the emulsion defoaming agent comprises silicone oil, water, a stabilizing agent, a suspending agent, ethylene oxide, an initiator, propylene oxide, butylene oxide, a catalyst and an emulsifying agent.
2. The defoamer for silicone emulsion in textile size according to claim 1, wherein: the emulsion defoamer is prepared from the following materials in proportion:
22.2 to 28.7 percent of silicone oil, 25.5 to 35 percent of water, 8.7 to 12.6 percent of stabilizer, 12.3 to 16.5 percent of suspending agent, 3.2 to 6.4 percent of ethylene oxide, 5.6 to 7.5 percent of initiator, 2.8 to 5.5 percent of propylene oxide, 1.7 to 3.4 percent of butylene oxide, 3.5 to 6.4 percent of catalyst and 4.2 to 8.3 percent of emulsifier.
3. The defoamer for silicone emulsion in textile size according to claim 2, wherein: the stabilizer is a magnesium-aluminum compound containing fatty acid zinc.
4. The defoamer for silicone emulsion in textile size according to claim 2, wherein: the suspending agent is specifically an aqueous suspending agent, the catalyst is specifically a liquid catalyst, and the emulsifier is specifically a non-ionic emulsifier, preferably any one of polyoxyethylene ether, polyoxypropylene ether or polyol fatty acid ester.
5. The defoamer for silicone emulsion in textile size according to claim 2, wherein: the initiator is preferably any one of propylene glycol, glycerol, trimethylolpropane or ethylenediamine pentaerythritol.
6. The method for preparing the silicone emulsion defoamer in textile size according to any one of claims 1-5, characterized in that: the preparation method of the emulsion defoamer comprises the following steps:
the method comprises the following steps: mixing ethylene oxide, an initiator, propylene oxide, butylene oxide and a catalyst to prepare polyether polyol;
step two: mixing and stirring the silicone oil, the water and the emulsifier for 80-120 min;
step three: after stirring, adding the polyether polyol prepared in the first step, then increasing the ambient temperature to 55-65 ℃, stirring for 50min again, and then standing for 2 days;
step four: and adding a stabilizer into the emulsion after standing, and homogenizing in a homogenizer for 50 min.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010465016.5A CN111569474A (en) | 2020-05-28 | 2020-05-28 | Organic silicon emulsion defoaming agent in textile size and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010465016.5A CN111569474A (en) | 2020-05-28 | 2020-05-28 | Organic silicon emulsion defoaming agent in textile size and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111569474A true CN111569474A (en) | 2020-08-25 |
Family
ID=72121891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010465016.5A Withdrawn CN111569474A (en) | 2020-05-28 | 2020-05-28 | Organic silicon emulsion defoaming agent in textile size and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111569474A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114159839A (en) * | 2021-12-31 | 2022-03-11 | 句容宁武高新技术发展有限公司 | Preparation method of microporous nanoparticle defoaming agent |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105498302A (en) * | 2015-11-24 | 2016-04-20 | 宜兴市丰烨化学有限公司 | Polyether silicone oil triglyceride antifoaming agent and preparation method thereof |
CN107674194A (en) * | 2017-08-21 | 2018-02-09 | 沈阳浩博实业有限公司 | A kind of polyether antifoam agent and preparation method thereof |
CN107936241A (en) * | 2017-11-27 | 2018-04-20 | 山东诺威新材料有限公司 | Polyethers for defoamer and preparation method thereof |
CN108854169A (en) * | 2018-06-25 | 2018-11-23 | 杨飞 | A kind of composite anti-foaming agent and preparation method thereof |
CN109260770A (en) * | 2018-09-12 | 2019-01-25 | 蓝凤祥 | A kind of nontoxic organic silicon modified by polyether suspension pvc resin defoaming agent of anti-freeze type and preparation method thereof |
CN110013690A (en) * | 2019-04-30 | 2019-07-16 | 乌鲁木齐市华泰隆化学助剂有限公司 | A kind of PVC organic silicon defoamer and preparation method thereof |
-
2020
- 2020-05-28 CN CN202010465016.5A patent/CN111569474A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105498302A (en) * | 2015-11-24 | 2016-04-20 | 宜兴市丰烨化学有限公司 | Polyether silicone oil triglyceride antifoaming agent and preparation method thereof |
CN107674194A (en) * | 2017-08-21 | 2018-02-09 | 沈阳浩博实业有限公司 | A kind of polyether antifoam agent and preparation method thereof |
CN107936241A (en) * | 2017-11-27 | 2018-04-20 | 山东诺威新材料有限公司 | Polyethers for defoamer and preparation method thereof |
CN108854169A (en) * | 2018-06-25 | 2018-11-23 | 杨飞 | A kind of composite anti-foaming agent and preparation method thereof |
CN109260770A (en) * | 2018-09-12 | 2019-01-25 | 蓝凤祥 | A kind of nontoxic organic silicon modified by polyether suspension pvc resin defoaming agent of anti-freeze type and preparation method thereof |
CN110013690A (en) * | 2019-04-30 | 2019-07-16 | 乌鲁木齐市华泰隆化学助剂有限公司 | A kind of PVC organic silicon defoamer and preparation method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114159839A (en) * | 2021-12-31 | 2022-03-11 | 句容宁武高新技术发展有限公司 | Preparation method of microporous nanoparticle defoaming agent |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3455839A (en) | Method for reducing or preventing foam in liquid mediums | |
CN105498304B (en) | A kind of defoaming composition and preparation method thereof | |
EP2846891B1 (en) | Defoamer formulations comprising organopolysiloxanes | |
CN105148571A (en) | Preparation method of defoaming agent for waterborne system | |
CN101757804B (en) | Preparation of antifoaming agent for sugar industry | |
CN105833572B (en) | Polyether antifoam agent and preparation method thereof | |
CN102895805B (en) | The preparation method of non-silicon defoaming agent | |
JP4338674B2 (en) | Antifoam composition | |
CN106492707A (en) | Surface activator composition | |
CN106243364B (en) | A kind of organic silicon modified by polyether lotion and preparation method thereof | |
CN110075573A (en) | A kind of silicate-containing oil and the defoaming agent of epoxidized soybean oil and preparation method thereof | |
CN106731034A (en) | A kind of compound defoamer | |
CN111569474A (en) | Organic silicon emulsion defoaming agent in textile size and preparation method thereof | |
CN114191854A (en) | Polyether modified organic siloxane emulsion type defoaming agent and preparation method thereof | |
CN105031978B (en) | A kind of silicon ether composite anti-foaming agent emulsion and preparation method thereof | |
DE941365C (en) | Antifoam agents | |
CN113813650A (en) | Novel defoaming agent and preparation method thereof | |
CN106243984A (en) | A kind of water-borne wood coating of Diamond Search volatilization and preparation method thereof | |
DE69822559T2 (en) | Silicone-based foam suppressant composition | |
CN104474745A (en) | Preparation method of organic silicon defoamer for textile printing and dyeing | |
CN108654512A (en) | Low bubble nonionic surfactant of one kind and the preparation method and application thereof | |
CN103920312B (en) | Method for preparing special foam-inhibiting defoaming agent for organic silicon wetting agent | |
JP5649376B2 (en) | Defoamer for kraft pulp manufacturing process | |
CN105273710B (en) | Acidproof defoamer and preparation method thereof | |
CN107130459B (en) | A kind of black liquid defoaming agent and its preparation method and application |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200825 |