CN112535885A - Organic silicon defoaming agent and preparation method thereof - Google Patents
Organic silicon defoaming agent and preparation method thereof Download PDFInfo
- Publication number
- CN112535885A CN112535885A CN201910899129.3A CN201910899129A CN112535885A CN 112535885 A CN112535885 A CN 112535885A CN 201910899129 A CN201910899129 A CN 201910899129A CN 112535885 A CN112535885 A CN 112535885A
- Authority
- CN
- China
- Prior art keywords
- parts
- organic silicon
- water
- stabilizer
- polyether
- 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.)
- Pending
Links
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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Coloring (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses an organic silicon defoaming agent and a preparation method thereof, belonging to the field of textile auxiliary agents. The organic silicon defoaming agent comprises the following components: 20-50 parts of water-soluble modified organic silicon solution, 10-30 parts of polyether compound, 2-10 parts of emulsifier, 1-10 parts of stabilizer, 1-10 parts of thickener, 1-3 parts of auxiliary stabilizer and 400-600 parts of deionized water. The organic silicon defoaming agent disclosed by the invention has stable water dilution stability, temperature and chemical stability and high-temperature shear resistance, good stability in the dyeing process, good compatibility with textile auxiliaries and lasting foam control capability.
Description
Technical Field
The invention belongs to the technical field of fabric auxiliary agent treatment, and particularly relates to an organic silicon defoaming agent and a preparation method thereof.
Background
During the processing of textiles, various printing and dyeing auxiliaries are contacted. The main components of the auxiliary agents, particularly the detergent, the penetrating agent, the emulsifier, the leveling agent and the like are surfactants, and the auxiliary agents are easy to generate foams after being subjected to mechanical vibration. The foam is a dispersion of air in water or some liquid, and when the fabric is processed, the contact surface of the liquid and the fabric is reduced, the processing unevenness phenomenon is generated, and the production and the product quality are seriously influenced. The foam can be eliminated by a static, heating or pressure reducing measure, but in order to quickly eliminate the foam or avoid the foam generation in each printing and dyeing process, a defoaming agent for textile printing and dyeing needs to be added. And adding the defoaming agent into the working solution to form solution, emulsion or dispersion, and adsorbing the solution, emulsion or dispersion on the surface of the bubble film. Because it has a lower surface tension than the foam film, the surfactant or foaming substance can be drawn in, the surface viscosity of the foam liquid film is reduced, and the foam liquid film is locally thinned and broken.
In the prior art, the organic silicon defoaming agent for textile printing and dyeing is prepared by taking dimethyl siloxane and silicon dioxide particles as a defoaming agent main body after being fully and uniformly mixed at high temperature, taking surfactants such as NP-4, NP-10 and the like as a composite emulsifier, and taking a proper thickening agent as a stable and dispersing preparation. However, the conventional organic silicon defoaming agent is poor in water dilution stability, is easy to disperse in textile slurry, is poor in chemical stability and thermal stability, and is easy to demulsify and form speckles when used in a severe environment, so that the product quality is seriously adversely affected.
Disclosure of Invention
The invention is carried out to solve the technical problems and provides an organic silicon defoaming agent and a preparation method thereof. In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the organic silicon defoaming agent provided by the invention has the technical characteristics that the organic silicon defoaming agent comprises the following components: 20-50 parts of water-soluble modified organic silicon solution, 10-30 parts of polyether compound, 2-10 parts of emulsifier, 1-10 parts of stabilizer, 1-10 parts of thickener, 1-3 parts of auxiliary stabilizer and 400-600 parts of deionized water.
Preferably, in the organic silicon defoaming agent provided by the invention, 40-50 parts by weight of water-soluble modified organic silicon solution, 18-25 parts by weight of polyether compound, 3-6 parts by weight of emulsifier, 3-8 parts by weight of stabilizer, 7-10 parts by weight of thickener, 1-2 parts by weight of auxiliary stabilizer and 500-600 parts by weight of deionized water.
Preferably, in the silicone defoaming agent provided by the invention, the water-soluble improved silicone solution is polyether modified silicone emulsion, hyperbranched polyether modified silicone emulsion or water-soluble silicone oil.
Preferably, in the silicone defoaming agent provided by the invention, the average viscosity of the water-soluble improved silicone solution at 25 ℃ is 2000-5000 mpa.s.
Preferably, in the silicone defoaming agent provided by the invention, the polyether compound comprises allyl polyether, propylene glycol polyether or trimethylolpropane polyether.
Preferably, in the silicone defoaming agent provided by the invention, the emulsifier is a nonionic emulsifier, and comprises tween 80, N-hexadecyl-N-ethylmorpholinyl ethyl sodium sulfate, pure sodium lauryl sulfate or polyoxyethylene monostearate.
Preferably, in the silicone defoaming agent provided by the invention, the stabilizer is modified starch, and the modified starch comprises etherified carboxymethyl starch, carboxyalkyl starch or ester starch.
Preferably, in the silicone defoamer provided by the invention, the thickener is a water-soluble polyacrylate thickener.
The invention also provides a preparation method of the organic silicon defoaming agent, which comprises the following steps: according to the raw material proportion, after uniformly stirring the water-soluble modified organic silicon solution, the polyether compound and the thickening agent, adding the emulsifier, emulsifying for 3-4 hours at the temperature of 60-80 ℃, then adding deionized water while stirring, adding the stabilizer and the auxiliary stabilizer after uniformly mixing, continuously stirring uniformly, and subpackaging.
The positive progress effects of the invention are as follows:
according to the organic silicon defoaming agent, the water-soluble modified organic silicon solution is used as a core component of the defoaming agent, so that the solubility between the defoaming agent and the textile size is enhanced; the polyether compound is used for improving the long-acting foam inhibition performance of the defoaming agent; the emulsifier enhances the homogeneity between the water-soluble modified organic silicon solution and the polyether compound; the stabilizer improves the stability of the functional components in inorganic salt, dye and acid-base environments; the auxiliary stabilizer is used as the auxiliary of the stabilizer and is used for improving the demulsification temperature of the defoaming agent.
Therefore, the organic silicon defoaming agent disclosed by the invention has stable water dilution stability, temperature and chemical stability and high-temperature shear resistance, good stability in the dyeing process, good compatibility with textile auxiliaries and lasting foam control capability.
Detailed Description
The present invention is described in detail below with reference to specific examples, which are intended to illustrate the present invention and not to limit the scope of the present invention.
Example 1
The components and parts by weight of the silicone defoamer in the example are as follows: 20 parts of polyether modified organic silicon emulsion, 10 parts of allyl polyether, 2 parts of N-hexadecyl-N-ethyl morpholinyl ethyl sodium sulfate, 1 part of etherified carboxymethyl starch, 1 part of water-soluble polyacrylate thickener, 1 part of white carbon black and 400 parts of deionized water.
The preparation method comprises the following steps: according to the raw material proportion, polyether modified organic silicon emulsion, allyl polyether and thickening agent are stirred uniformly in a variable-speed mixer (purchased from IKA, model RW20digitil), then N-hexadecyl-N-ethyl morpholinyl ethyl sodium sulfate is added, emulsification is carried out for 3-4 hours at the temperature of 60-80 ℃, then deionized water is added while stirring, stabilizer etherified carboxymethyl starch and auxiliary stabilizer white carbon black are added after uniform mixing, and split charging is carried out after continuous uniform stirring.
Example 2
The components and mass percentages of the organosilicon antifoaming agent in the embodiment are as follows: 40 parts of hyperbranched polyether modified silicone emulsion, 20 parts of trimethylolpropane polyether, 6 parts of pure sodium lauryl sulfate, 6 parts of carboxyalkyl starch, 6 parts of water-soluble polyacrylate thickener, 2 parts of white carbon black and 500 parts of deionized water.
The preparation method comprises the following steps: according to the raw material proportion, in a variable-speed mixer (purchased from IKA, model RW20digitil), firstly, uniformly stirring hyperbranched polyether modified organic silicon emulsion, trimethylolpropane polyether and a thickening agent, adding pure sodium lauryl sulfate, emulsifying for 3-4 hours at the temperature of 60-80 ℃, then adding deionized water while stirring, uniformly mixing, adding a stabilizer of carboxyalkyl starch and an auxiliary stabilizer of white carbon black, continuously stirring uniformly, and subpackaging.
Example 3
The components and mass percentages of the organosilicon antifoaming agent in the embodiment are as follows: 50 parts by weight of water-soluble silicone oil, 30 parts by weight of propylene glycol polyether, 10 parts by weight of polyoxyethylene monostearate, 10 parts by weight of carboxyalkyl starch, 10 parts by weight of water-soluble polyacrylate thickener, 3 parts by weight of anhydrous sodium sulfate and 600 parts by weight of deionized water.
The preparation method comprises the following steps: according to the raw material proportion, firstly uniformly stirring water-soluble silicone oil, propylene glycol polyether and a thickening agent in a variable-speed mixer (purchased from IKA, model RW20digitil), adding polyoxyethylene monostearate, emulsifying for 3-4 hours at the temperature of 60-80 ℃, then adding deionized water while stirring, adding a stabilizing agent of carboxyalkyl starch and an auxiliary stabilizing agent of anhydrous sodium sulfate after uniformly mixing, continuously stirring uniformly, and subpackaging.
The performance parameters of the silicone defoamer prepared through the three examples are shown in table 1:
TABLE 1 examples 1-3 Silicone antifoam physical Properties
| Performance of | Detection value |
| Appearance of the product | Milky viscous liquid |
| Viscosity (25 ℃ C.) | 2000～10000C.S.T |
| Specific gravity (25 ℃ C.) | About 1.00g/mL |
| pH | 6.5～7 |
| Active content | 40～50％ |
| Ionic type | Non-ionic |
The formulations of examples 1-3 were tested in the same manner as commercially available silicone defoamers for textile use (comparative examples), and the results are shown in Table 2:
TABLE 2 comparative test results of inventive examples with commercial products
The organic silicon defoaming agent prepared in the embodiments 1 to 3 of the invention has good water solubility, excellent temperature and chemical quality stability, can be used in a large pH value range, and can achieve a good effect with a small dosage. The additive is particularly recommended to be applied to the synthesis process of textile size, water-based textile refining auxiliary agents and pigment dyeing, and the foam generation of finished products in the application process is reduced.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit of the invention, and the scope of the appended claims is to be accorded the full scope of the invention.
Claims (10)
1. An organic silicon defoaming agent is characterized by comprising the following components: 20-50 parts of water-soluble modified organic silicon solution, 10-30 parts of polyether compound, 2-10 parts of emulsifier, 1-10 parts of stabilizer, 1-10 parts of thickener, 1-3 parts of auxiliary stabilizer and 400-600 parts of deionized water.
2. The silicone defoamer as set forth in claim 1, characterized in that:
the water-soluble modified organic silicon solution comprises, by weight, 40-50 parts of water-soluble modified organic silicon solution, 18-25 parts of polyether compound, 3-6 parts of emulsifier, 3-8 parts of stabilizer, 7-10 parts of thickener, 1-2 parts of auxiliary stabilizer and 500-600 parts of deionized water.
3. The silicone defoamer as set forth in claim 1 or 2, characterized in that:
wherein the water-soluble improved organic silicon solution is polyether modified organic silicon emulsion, hyperbranched polyether modified organic silicon emulsion or water-soluble silicone oil.
4. The silicone defoamer as set forth in claim 3, characterized in that:
wherein the average viscosity of the water-soluble improved organosilicon solution at 25 ℃ is 2000-5000 mpa.s.
5. The silicone defoamer as set forth in claim 1 or 2, characterized in that:
wherein the polyether compound comprises allyl polyether, propylene glycol polyether or trimethylolpropane polyether.
6. The silicone defoamer as set forth in claim 1, characterized in that:
wherein the emulsifier is a non-ionic emulsifier, and comprises tween 80, N-hexadecyl-N-ethyl morpholinyl ethyl sodium sulfate, pure sodium lauryl sulfate or polyoxyethylene monostearate.
7. The silicone defoamer as set forth in claim 1, characterized in that:
wherein the stabilizer is modified starch, and the modified starch comprises etherified carboxymethyl starch, carboxyalkyl starch or ester starch.
8. The silicone defoamer as set forth in claim 1, characterized in that:
wherein, the auxiliary stabilizer comprises white carbon black or anhydrous sodium sulfate.
9. The silicone defoamer as set forth in claim 1, characterized in that:
wherein the thickening agent is a water-soluble polyacrylate thickening agent.
10. The method for preparing the silicone antifoaming agent of claim 1, which is performed according to the following steps:
according to the raw material proportion, after uniformly stirring the water-soluble modified organic silicon solution, the polyether compound and the thickening agent, adding the emulsifier, emulsifying for 3-4 hours at the temperature of 60-80 ℃, then adding deionized water while stirring, adding the stabilizer and the auxiliary stabilizer after uniformly mixing, continuously stirring uniformly, and subpackaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899129.3A CN112535885A (en) | 2019-09-23 | 2019-09-23 | Organic silicon defoaming agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899129.3A CN112535885A (en) | 2019-09-23 | 2019-09-23 | Organic silicon defoaming agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112535885A true CN112535885A (en) | 2021-03-23 |
Family
ID=75013032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910899129.3A Pending CN112535885A (en) | 2019-09-23 | 2019-09-23 | Organic silicon defoaming agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112535885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114316609A (en) * | 2021-09-03 | 2022-04-12 | 南京瑞思化学技术有限公司 | Preparation method of silicon ether composition |
-
2019
- 2019-09-23 CN CN201910899129.3A patent/CN112535885A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114316609A (en) * | 2021-09-03 | 2022-04-12 | 南京瑞思化学技术有限公司 | Preparation method of silicon ether composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102698475B (en) | Defoaming composition | |
| US8258192B2 (en) | Silicone composition emulsion and method for preparing the same | |
| CN104069656B (en) | A kind of defoaming composition | |
| CN101884852A (en) | Method for improving properties of polyether defoaming agent | |
| CN105148571A (en) | Preparation method of defoaming agent for waterborne system | |
| WO2016019598A1 (en) | Defoaming agent for liquid detergent | |
| CN107460728B (en) | High-efficiency low-foam refining agent and preparation method thereof | |
| CN106215466A (en) | A kind of preparation method of high stability of siloxane defoamer | |
| CN111974032A (en) | Modified organic silicon defoaming agent and preparation method thereof | |
| CN108047805A (en) | A kind of compound levelling agent and its preparation method and application | |
| CN112535885A (en) | Organic silicon defoaming agent and preparation method thereof | |
| CN105153785B (en) | A kind of water paint emulsion type defoaming agent and preparation method thereof | |
| CN109234086A (en) | A kind of concentrated type detergent composition | |
| WO2021203556A1 (en) | Organosilicon composite emulsion defoamer for papermaking industry, and preparation method therefor | |
| CN103074784B (en) | Composite organic silicon defoamer for textile printing and dyeing | |
| CN107488375A (en) | Height filling aqueous wooden ware compound type transparent putty and preparation method thereof | |
| CN106267913A (en) | A kind of high stability of siloxane defoamer | |
| CN112023452A (en) | Defoaming agent for domestic sewage treatment and preparation method thereof | |
| CN102120159A (en) | Method for preparing emulsified silicone oil defoamer | |
| CN105714580A (en) | Environment-friendly, alkali-resistant and high-temperature-resistant defoamer for textile printing and dyeing and preparation method thereof | |
| WO2021254169A1 (en) | Method for preparing organosilicon defoaming composition | |
| CN115387126B (en) | Preparation method of high-stability low-solvent softening agent for cotton | |
| CN113336994B (en) | Foam stabilizer and preparation method and application thereof | |
| CN118001788A (en) | Organic silicon defoamer and preparation method thereof | |
| CN116556084B (en) | One-step energy-saving auxiliary agent for cone dyeing and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210323 |
|
| WD01 | Invention patent application deemed withdrawn after publication |