CN112386961A - Polyether defoaming agent and preparation method thereof - Google Patents
Polyether defoaming agent and preparation method thereof Download PDFInfo
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- CN112386961A CN112386961A CN202011359028.6A CN202011359028A CN112386961A CN 112386961 A CN112386961 A CN 112386961A CN 202011359028 A CN202011359028 A CN 202011359028A CN 112386961 A CN112386961 A CN 112386961A
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- polyether
- defoaming agent
- defoamer
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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
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- Health & Medical Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Detergent Compositions (AREA)
- Polyethers (AREA)
Abstract
The invention belongs to the technical field of chemical synthesis, and particularly relates to a polyether defoamer and a preparation method thereof, wherein the polyether defoamer is prepared from the following raw materials in parts by weight: ethylene oxide, small molecule alcohol, lecithin: the catalyst is 90-180:70-130:30-60:45-70: 50-80. The polyether defoaming agent prepared by the invention has excellent defoaming capability and foam inhibition capability, has strong emulsifying, dispersing and penetrating capabilities, can be self-emulsified in a water system, has good stability and has a lasting defoaming effect. And has no toxicity, low cost, water saving and no side effect on washing product.
Description
Technical Field
The invention belongs to the technical field of chemical synthesis, and particularly relates to a polyether defoaming agent and a preparation method thereof.
Background
The function of the defoaming agent in the washing process cannot be ignored, a large amount of water resources can be wasted in the rinsing process due to a large amount of foam generated in the washing process, harmful substances are easily left on clothes and absorbed by skin to damage the health of a human body, so that the effective removal of the washing foam is necessary, the water resources are saved, the washing time is also saved, and the washing machine is beneficial to health.
Disclosure of Invention
The invention aims to provide a polyether defoaming agent and a preparation method thereof, aiming at solving the problem of a large amount of foam in washing, and the polyether defoaming agent has the characteristics of low cost and wide application range through optimized formula design.
The polyether defoamer is characterized by being prepared from the following raw materials in parts by weight: ethylene oxide, small molecule alcohol, lecithin: the catalyst is 90-180:70-130:30-60:45-70: 50-80.
Further, the molecular weight of the polypropylene glycol ether is 400-5000.
Furthermore, the small molecule alcohol is one or more of butanol, isobutanol or propylene glycol.
Furthermore, the catalyst is one or more of nano magnesium hydroxide, nano calcium carbonate or nano magnesium carbonate.
The preparation method of the polyether defoaming agent is characterized by comprising the following steps of adding the raw materials into a pressure container with stirring, and stirring for 2-5 hours at the temperature of 50-100 ℃, the pressure of 0.02-0.1Mpa and the rotating speed of 300r/min to obtain semitransparent emulsion, namely the polyether defoaming agent.
In the invention, the polypropylene glycol ether has the function of a hydrophobic agent; the epoxy ethane has the function of hydrophilic group; the small molecular alcohol is used as a regulator and also has hydrophilic effect and permeability. The lecithin structure has two long fatty acid chains, and is hydrophobic, lipophilic and non-polar; the catalyst acts as a catalyst. After the raw materials are compounded, the components generate macromolecules with a hydrophobic effect under the catalytic action, the macromolecules are regulated by micromolecular alcohol, the solubility of oil stain of clothes in water can be improved by lecithin, the catalyst is solid powder and can adapt to water environments with various hardness, and a hydrophobic end can be attracted into a water phase by a hydrophobic group on the surface of a bubble.
Compared with the prior art, the invention has the following beneficial effects: the prepared polyether defoaming agent has excellent defoaming capability and foam inhibiting capability, has strong emulsifying, dispersing and penetrating capabilities, can be self-emulsified in a water system, has good stability and has a lasting defoaming effect. And has no toxicity, low cost, water saving and no side effect on washing product.
Detailed Description
The present invention will be further described with reference to the following examples.
All the starting materials used in the examples are commercially available, except where otherwise indicated.
Example 1:
the polyether defoamer is prepared from the following components in parts by weight:
polypropylene glycol ether (molecular weight 400): ethylene oxide, butanol, lecithin: the nano magnesium hydroxide is 100:80:50:45: 60.
The preparation method comprises the following steps of adding the raw materials into a pressure container with stirring, stirring for 2.5h at 50 ℃ and 0.08Mpa, and obtaining semitransparent emulsion at the stirring speed of 300r/min, namely the polyether defoamer, and detecting the viscosity of 3000(mpa.s/25 ℃).
Example 2:
the polyether defoamer is prepared from the following components in parts by weight:
polypropylene glycol ether (molecular weight 1000): ethylene oxide, isobutanol, lecithin: nano calcium hydroxide 120:90:55:50: 70.
The preparation method comprises the following steps of adding the raw materials into a pressure container with stirring, stirring for 5 hours at 75 ℃ and 0.05Mpa at a stirring speed of 300r/min to obtain a semitransparent emulsion, namely the polyether defoamer, and detecting the viscosity to 2000(mpa.s/25 ℃).
Example 3:
the polyether defoamer is prepared from the following components in parts by weight:
polypropylene glycol ether (molecular weight 5000): ethylene oxide, propylene glycol, lecithin: 130 parts of nano calcium carbonate, 100 parts of nano calcium carbonate: 60:55:75.
The preparation method comprises adding the above raw materials into a pressure vessel with stirring, stirring at 100 deg.C and 0.02Mpa for 3.5 hr at a rotation speed of 300r/min to obtain semitransparent emulsion, i.e. polyether defoamer, and detecting viscosity of 3050mpa.s
Example 4:
the polyether defoamer is prepared from the following components in parts by weight:
polypropylene glycol ether (molecular weight 3000): ethylene oxide, propylene glycol, lecithin: and (4) nano magnesium carbonate 180: 130: 30:75:75.
The preparation method comprises the following steps of adding the raw materials into a pressure container with stirring, stirring for 2 hours at 80 ℃ and 0.1Mpa at a stirring speed of 300r/min to obtain a semitransparent emulsion, namely the polyether defoamer, and detecting the viscosity to be 1000(mpa.s/25 ℃).
Test example:
the detection method comprises the following steps: 30g of a 1% by mass aqueous solution of sodium dodecylbenzenesulfonate was added to a 100-ml measuring cylinder to produce 100 ml of foam, and a drop of the product was added to observe and record the time (unit: sec) for foam elimination, the shorter the time, the better the defoaming effect. The foam inhibition capability is to foam the solution after the defoaming agent is added, record the scale of foam initiation, and the lower the height of foam initiation, the better the foam inhibition. And (4) testing the emulsifying permeability, after the foam inhibition performance is detected, placing the mixture at room temperature for one day without layering, and detecting that the foam inhibition performance is qualified.
Claims (5)
1. The polyether defoamer is characterized by being prepared from the following raw materials in parts by weight: ethylene oxide, small molecule alcohol, lecithin: the catalyst is 90-180:70-130:30-60:45-70: 50-80.
2. The polyether defoamer as set forth in claim 1, wherein said polypropylene glycol ether has a molecular weight of 400-.
3. The polyether defoamer of claim 1, wherein said small molecule alcohol is one or more of butanol, isobutanol or propylene glycol.
4. The polyether defoamer as claimed in claim 1, wherein said catalyst is one or more of nano magnesium hydroxide, nano calcium carbonate or nano magnesium carbonate.
5. A method for preparing the polyether defoaming agent according to any one of claims 1 to 4, characterized by comprising the following steps of adding the raw materials into a pressure vessel with stirring, and stirring for 2 to 5 hours at the temperature of 50 to 100 ℃, the pressure of 0.02 to 0.1MPa and the rotating speed of 300r/min to obtain a translucent emulsion, namely the polyether defoaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359028.6A CN112386961A (en) | 2020-11-27 | 2020-11-27 | Polyether defoaming agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011359028.6A CN112386961A (en) | 2020-11-27 | 2020-11-27 | Polyether defoaming agent and preparation method thereof |
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| CN112386961A true CN112386961A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011359028.6A Pending CN112386961A (en) | 2020-11-27 | 2020-11-27 | Polyether defoaming agent and preparation method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4895681A (en) * | 1986-10-23 | 1990-01-23 | Henkel Kommanditgesellschaft Auf Aktien | Fatty acid esters of polyglycerol polyglycol ethers, their production and use |
| JP2005230711A (en) * | 2004-02-20 | 2005-09-02 | Sanyo Chem Ind Ltd | Antifoamer composition |
| WO2008066790A2 (en) * | 2006-11-27 | 2008-06-05 | Momentive Performance Materials Inc. | Silicone antifoam composition and method using same |
| CN101638868A (en) * | 2008-08-01 | 2010-02-03 | 尹玉娟 | Polyether defoamer |
| CN102875797A (en) * | 2012-10-19 | 2013-01-16 | 大连广汇科技有限公司 | Synthesis method of polyether defoamer |
| CN104324655A (en) * | 2014-09-23 | 2015-02-04 | 浙江皇马科技股份有限公司 | Low foam polyether type surfactant and synthesis method thereof |
| CN106807123A (en) * | 2016-12-28 | 2017-06-09 | 广东中联邦精细化工有限公司 | A kind of foam inhibitor and preparation method thereof |
| CN107537185A (en) * | 2017-08-18 | 2018-01-05 | 佳化化学（茂名）有限公司 | A kind of self-emulsifying type defoamer and preparation method thereof |
| CN109925755A (en) * | 2017-12-16 | 2019-06-25 | 常州普纳电子科技有限公司 | A kind of polyether antifoam agent |
-
2020
- 2020-11-27 CN CN202011359028.6A patent/CN112386961A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| US4895681A (en) * | 1986-10-23 | 1990-01-23 | Henkel Kommanditgesellschaft Auf Aktien | Fatty acid esters of polyglycerol polyglycol ethers, their production and use |
| JP2005230711A (en) * | 2004-02-20 | 2005-09-02 | Sanyo Chem Ind Ltd | Antifoamer composition |
| WO2008066790A2 (en) * | 2006-11-27 | 2008-06-05 | Momentive Performance Materials Inc. | Silicone antifoam composition and method using same |
| CN101638868A (en) * | 2008-08-01 | 2010-02-03 | 尹玉娟 | Polyether defoamer |
| CN102875797A (en) * | 2012-10-19 | 2013-01-16 | 大连广汇科技有限公司 | Synthesis method of polyether defoamer |
| CN104324655A (en) * | 2014-09-23 | 2015-02-04 | 浙江皇马科技股份有限公司 | Low foam polyether type surfactant and synthesis method thereof |
| CN106807123A (en) * | 2016-12-28 | 2017-06-09 | 广东中联邦精细化工有限公司 | A kind of foam inhibitor and preparation method thereof |
| CN107537185A (en) * | 2017-08-18 | 2018-01-05 | 佳化化学（茂名）有限公司 | A kind of self-emulsifying type defoamer and preparation method thereof |
| CN109925755A (en) * | 2017-12-16 | 2019-06-25 | 常州普纳电子科技有限公司 | A kind of polyether antifoam agent |
Non-Patent Citations (1)
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| 马洛平编著: "《消除有害泡沫技术》", 31 December 1987, 化学工业出版社 * |
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