CN111111266A - Modified organic silicon defoaming agent and preparation method thereof - Google Patents
Modified organic silicon defoaming agent and preparation method thereof Download PDFInfo
- Publication number
- CN111111266A CN111111266A CN201911397299.8A CN201911397299A CN111111266A CN 111111266 A CN111111266 A CN 111111266A CN 201911397299 A CN201911397299 A CN 201911397299A CN 111111266 A CN111111266 A CN 111111266A
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- oil
- coupling agent
- silicone oil
- 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
- 239000002518 antifoaming agent Substances 0.000 title claims abstract description 36
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 12
- 239000010703 silicon Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229920002545 silicone oil Polymers 0.000 claims abstract description 32
- 239000007822 coupling agent Substances 0.000 claims abstract description 30
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 24
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 24
- 239000002562 thickening agent Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 23
- 239000000194 fatty acid Substances 0.000 claims abstract description 23
- 229930195729 fatty acid Natural products 0.000 claims abstract description 23
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims abstract description 23
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 20
- 229920000570 polyether Polymers 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 11
- -1 acyloxy titanate Chemical compound 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013530 defoamer Substances 0.000 claims description 17
- 239000000839 emulsion Substances 0.000 claims description 12
- 229920001296 polysiloxane Polymers 0.000 claims description 11
- 229940008099 dimethicone Drugs 0.000 claims description 9
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 9
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 9
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 6
- 235000021314 Palmitic acid Nutrition 0.000 claims description 3
- 239000005662 Paraffin oil Substances 0.000 claims description 3
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical group CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 3
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001587 sorbitan monostearate Substances 0.000 claims description 3
- 235000011076 sorbitan monostearate Nutrition 0.000 claims description 3
- 229940035048 sorbitan monostearate Drugs 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
-
- 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)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses a modified organic silicon defoaming agent and a preparation method thereof, wherein the modified organic silicon defoaming agent comprises the following raw materials in parts by weight, 5-20 parts of dimethyl silicone oil; 5-10 parts of polyether modified silicone oil; 10-20 parts of hydrocarbonized oil; 1-5 parts of silicon dioxide; 2-5 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-4 parts of a thickening agent; 50-80 parts of water, and the titanate coupling agent is a mixture of isopropyl dioleate acyloxy titanate and tetraisopropyl dititanate through the design of a formula, so that the stability after defoaming is better, the foaming is not easy to occur during medium-speed stirring, the use amount is small, and a better defoaming effect can be obtained under the condition of a small use amount.
Description
Technical Field
The invention relates to the field of defoaming agents, in particular to a modified organic silicon defoaming agent and a preparation method thereof.
Background
The defoaming agent, also known as an antifoaming agent, can generate a plurality of harmful foams in the industrial production process, needs to be added with defoaming, and is widely applied to removing the harmful foams generated in the production processes of industries such as latex, textile sizing, food fermentation, biomedicine, coating, petrochemical industry, paper making, industrial cleaning and the like. Generally, foams are coarse dispersions of gas in liquid, belonging to gas-liquid heterogeneous systems, gas-liquid dispersions with bulk densities close to that of gas but not close to that of liquid. When the liquid does not contain the surfactant, the bubbles can migrate to the surface of the liquid and break and disappear; when the liquid contains a surfactant, the surface of the bubbles forms a film sheet, and the foam becomes stable. The conventional defoaming agent compositions have a problem that sufficient defoaming property cannot be obtained. Particularly, in the emulsion type coating, the defoaming property is poor, and the problems of foam breaking prevention and foam inhibition are difficult to solve.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a modified organic silicon defoamer and a preparation method thereof, the high-efficiency water-based paint defoamer prepared by the invention contains a silicon dioxide component, has strong capability of eliminating tiny bubbles in a high-viscosity system, is suitable for transparent water-based paint, has strong defoaming and foam inhibiting capabilities, is suitable for polyurethane and acrylic adhesive systems, belongs to an emulsion type defoamer, has self-dispersion performance and is convenient to use; the problems that most of defoaming agents are low in defoaming speed and short in foam inhibition time in a high-viscosity system are solved, and the titanium ester coupling agent is a mixture of isopropyl dioleate acyloxy titanium ester and tetraisopropyl dititanate through the design of a formula, so that the defoaming agent is high in stability after defoaming and is not easy to foam during medium-speed stirring.
In order to achieve the purpose, the invention provides the following technical scheme: the modified organic silicon defoaming agent comprises the following raw materials, by weight, 5-20 parts of dimethyl silicone oil; 5-10 parts of polyether modified silicone oil; 10-20 parts of hydrocarbonized oil; 1-5 parts of silicon dioxide; 2-5 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-4 parts of a thickening agent; 50-80 parts of water.
Preferably, the silicone oil comprises the following raw materials, by weight, 5-10 parts of dimethyl silicone oil; 5-6 parts of polyether modified silicone oil; 10-15 parts of hydrocarbonized oil; 1-3 parts of silicon dioxide; 2-3 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-3 parts of a thickening agent; 50-80 parts of water.
Preferably, the coating comprises the following raw materials in parts by weight, 7 parts of dimethyl silicone oil; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.5 parts of a coupling agent; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Preferably, the hydrocarbonated oil is a paraffin oil.
Preferably, the silicon dioxide is hydrophobic fumed silica.
Preferably, the fatty acid is palmitic acid.
Preferably, the coupling agent is a titanate coupling agent, the titanate coupling agent is a mixture of isopropyl dioleate acyloxy titanate and tetraisopropyl dititanate, the emulsifier is sorbitan monostearate, and the thickener is hydroxypropyl methyl cellulose.
The invention also provides a preparation method of the modified organic silicon defoaming agent, which comprises the following steps of (1): adding dimethyl silicone oil, polyether modified silicone oil, hydrocarbonated oil, silicon dioxide, allyl glycidyl ether, fatty acid, a coupling agent, an emulsifier, a thickening agent and water into a heating tank in proportion, heating to 100-150 ℃, keeping the temperature, stirring for 1-3 hours, and then cooling to 70-80 ℃ to obtain a premix;
step (2): emulsifying and stirring the pre-mixture at 70-80 ℃ for 1-2 h, and then cooling to room temperature to obtain a coarse emulsion; and homogenizing the crude emulsion for 0.5-1 h to obtain the defoaming agent.
Compared with the prior art, the invention has the following beneficial effects:
1. the efficient water-based paint defoamer prepared by the invention contains silicon dioxide components, has strong capability of eliminating micro bubbles in a high-viscosity system, is suitable for transparent water-based paint, has strong defoaming and foam inhibiting capabilities, is suitable for a polyurethane and acrylic emulsion system, belongs to an emulsion type defoamer, has self-dispersion performance, and is convenient to use; the problems that most of defoaming agents are low in defoaming speed and short in defoaming time in a high-viscosity system are solved, and the titanate coupling agent is a mixture of isopropyl dioleate acyloxy titanate and tetraisopropyl dititanate through the design of a formula, so that the defoaming agent has better stability after defoaming, is not easy to foam during medium-speed stirring, is small in using amount, and can achieve a better defoaming effect under the condition of less using amount.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a modified organic silicon defoaming agent which comprises the following raw materials in parts by weight, 5-20 parts of dimethyl silicone oil; 5-10 parts of polyether modified silicone oil; 10-20 parts of hydrocarbonized oil; 1-5 parts of silicon dioxide; 2-5 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-4 parts of a thickening agent; 50-80 parts of water. Further, the coating comprises the following raw materials, by weight, 5-10 parts of dimethyl silicone oil; 5-6 parts of polyether modified silicone oil; 10-15 parts of hydrocarbonized oil; 1-3 parts of silicon dioxide; 2-3 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-3 parts of a thickening agent; 50-80 parts of water.
The oil is composed of a hydrocarbonate, a coupling agent, an emulsifier, a thickening agent and a coupling agent, wherein the hydrocarbonate is paraffin oil, silicon dioxide is hydrophobic fumed silica, fatty acid is palmitic acid, the coupling agent is a titanate coupling agent, the titanate coupling agent is a mixture of isopropyl dioleate acyloxy titanate and tetraisopropyl dititanate, the emulsifier is sorbitan monostearate, and the thickening agent is hydroxypropyl methyl cellulose.
Embodiment 1, a modified silicone defoamer, comprising the following raw materials, by weight, 5 parts of dimethicone; 5 parts of polyether modified silicone oil; 10 parts of hydrocarbonated oil; 1 part of silicon dioxide; 2 parts of allyl glycidyl ether; 1 part of fatty acid; 1 part of a coupling agent; 2 parts of an emulsifier; 1 part of a thickening agent; 50 parts of water.
Embodiment 2, a modified silicone defoamer, comprising the following raw materials, by weight, 20 parts of dimethicone; 10 parts of polyether modified silicone oil; 20 parts of hydrocarbonated oil; 5 parts of silicon dioxide; 5 parts of allyl glycidyl ether; 2 parts of fatty acid; 2 parts of a coupling agent; 5 parts of an emulsifier; 4 parts of a thickening agent; 80 parts of water.
Embodiment 3, a modified silicone defoamer, comprising the following raw materials, by weight, 10 parts of dimethicone; 6 parts of polyether modified silicone oil; 15 parts of hydrocarbonated oil; 3 parts of silicon dioxide; 3 parts of allyl glycidyl ether; 2 parts of fatty acid; 2 parts of a coupling agent; 5 parts of an emulsifier; 3 parts of a thickening agent; 80 parts of water.
Embodiment 4, a modified silicone defoamer, comprising the following raw materials, by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.5 parts of a coupling agent; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Embodiment 5, a modified silicone defoamer, comprising the following raw materials, by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.0 part of isopropyl dioleic acid acyloxy titanate and 0.5 part of tetraisopropyl dititanate; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Comparative example 1, a modified silicone defoamer comprising the following raw materials in parts by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.5 parts of isopropyl dioleate acyloxy titanate; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Comparative example 2, a modified silicone defoamer, comprising the following raw materials, by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.5 parts of tetraisopropyl dititanate; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Comparative example 3, a modified silicone defoamer comprising the following raw materials in parts by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 0.5 part of isopropyl dioleic acid acyloxy titanate and 1.5 parts of tetraisopropyl dititanate; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
Example 1-comparative example 3 was prepared in the following manner: adding dimethyl silicone oil, polyether modified silicone oil, hydrocarbonated oil, silicon dioxide, allyl glycidyl ether, fatty acid, a coupling agent, an emulsifier, a thickening agent and water into a heating tank in proportion, heating to 100-150 ℃, keeping the temperature, stirring for 1-3 hours, and then cooling to 70-80 ℃ to obtain a premix; emulsifying and stirring the pre-mixture at 70-80 ℃ for 1-2 h, and then cooling to room temperature to obtain a coarse emulsion; and homogenizing the crude emulsion for 0.5-1 h to obtain the defoaming agent.
Comparative example 1
Commercially available antifoam agents.
The defoaming agents prepared in example 1-comparative example 3 were subjected to performance test, the foaming agent was acrylic emulsion, 400ml of the above foaming agent was added into a 1000ml measuring cylinder, air was blown in through an air pump to raise the foam height to the 1000ml mark, and blowing was stopped, 0.5ml of the defoaming agents prepared in example 1, example 2, example 3, example 4, comparative example 1, comparative example 2, comparative example 3, and 0.35ml of example 5 were added respectively, and compared with comparative example 1 of a commercially available defoaming agent, the defoaming time of each defoaming agent was recorded to 500ml, and then blowing was performed again, and the rise of foam after defoaming was recorded to 800ml and 1000ml marks, and the experimental results are shown in table 1.
TABLE 1 antifoam Performance test results
As shown in Table 1, the defoaming agent prepared by the invention is obviously superior to the commercially available defoaming agent in defoaming performance and foam inhibiting performance.
Comparative example 2
The defoaming agents prepared in the examples 1 to the comparative example 3 were subjected to performance test, the foaming solution was acrylic emulsion, 400ml of the above foaming solution was added into a 1000ml measuring cylinder, air was blown in through an air pump to raise the height of foam to a 1000ml scale, and then air blowing was stopped, 0.5ml of the above examples 1 to the comparative example 3 was added, and compared with the commercial defoaming agent comparative example 1, the defoaming time of each defoaming agent was recorded to 500ml, and then air blowing was performed again, and the rise of foam after defoaming was recorded to 800ml and 1000ml, and the experimental results are shown in table 2.
TABLE 2 Performance test results for the same amount of defoamer used
Referring to tables 1 and 2, the defoaming agent of the present invention can achieve a smaller amount, and also can achieve excellent defoaming performance, as well as excellent foam suppressing performance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. The modified organic silicon defoaming agent is characterized by comprising the following raw materials, by weight, 5-20 parts of dimethyl silicone oil; 5-10 parts of polyether modified silicone oil; 10-20 parts of hydrocarbonized oil; 1-5 parts of silicon dioxide; 2-5 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-4 parts of a thickening agent; 50-80 parts of water.
2. The modified organic silicon defoaming agent according to claim 1 is characterized by comprising the following raw materials, by weight, 5-10 parts of dimethyl silicone oil; 5-6 parts of polyether modified silicone oil; 10-15 parts of hydrocarbonized oil; 1-3 parts of silicon dioxide; 2-3 parts of allyl glycidyl ether; 1-2 parts of fatty acid; 1-2 parts of a coupling agent; 2-5 parts of an emulsifier; 1-3 parts of a thickening agent; 50-80 parts of water.
3. The modified organosilicon antifoaming agent according to claim 2, characterized by comprising the following raw materials, by weight, 7 parts of dimethicone; 5.5 parts of polyether modified silicone oil; 12 parts of hydrocarbonated oil; 1.5 parts of silicon dioxide; 2.5 parts of allyl glycidyl ether; 1.5 parts of fatty acid; 1.5 parts of a coupling agent; 3 parts of an emulsifier; 1.5 parts of a thickening agent; and 64 parts of water.
4. The modified silicone defoamer as set forth in claim 3, wherein said hydrocarbonated oil is a paraffin oil.
5. The modified organosilicon antifoaming agent according to claim 4, characterized in that the silica is hydrophobic fumed silica.
6. The modified silicone defoamer as set forth in claim 5, wherein said fatty acid is palmitic acid.
7. The modified silicone defoamer as claimed in claim 6, wherein said coupling agent is a titanate coupling agent, said titanate coupling agent is a mixture of isopropyl dioleate acyloxy titanate and tetraisopropyl dititanate, said emulsifier is sorbitan monostearate, and said thickener is hydroxypropyl methylcellulose.
8. The preparation method of the modified organic silicon defoaming agent is characterized by comprising the following steps: step (1): adding dimethyl silicone oil, polyether modified silicone oil, hydrocarbonated oil, silicon dioxide, allyl glycidyl ether, fatty acid, a coupling agent, an emulsifier, a thickening agent and water into a heating tank in proportion, heating to 100-150 ℃, keeping the temperature, stirring for 1-3 hours, and then cooling to 70-80 ℃ to obtain a premix;
step (2): emulsifying and stirring the pre-mixture at 70-80 ℃ for 1-2 h, and then cooling to room temperature to obtain a coarse emulsion; and homogenizing the crude emulsion for 0.5-1 h to obtain the defoaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397299.8A CN111111266A (en) | 2019-12-30 | 2019-12-30 | Modified organic silicon defoaming agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397299.8A CN111111266A (en) | 2019-12-30 | 2019-12-30 | Modified organic silicon defoaming agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111111266A true CN111111266A (en) | 2020-05-08 |
Family
ID=70505347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397299.8A Pending CN111111266A (en) | 2019-12-30 | 2019-12-30 | Modified organic silicon defoaming agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111111266A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744236A (en) * | 2020-08-14 | 2020-10-09 | 杭州富阳诚科通信材料有限公司 | Polyether modified organic silicon defoaming agent and preparation method thereof |
| CN111974032A (en) * | 2020-09-07 | 2020-11-24 | 安徽銮威化工科技开发有限公司 | Modified organic silicon defoaming agent and preparation method thereof |
| CN112023452A (en) * | 2020-08-19 | 2020-12-04 | 肇庆领誉环保实业有限公司 | Defoaming agent for domestic sewage treatment and preparation method thereof |
| CN113546452A (en) * | 2021-04-28 | 2021-10-26 | 淄博惠生工贸有限公司 | Modified organic silicon defoaming agent and preparation method thereof |
| CN114632352A (en) * | 2022-03-31 | 2022-06-17 | 山东师范大学实验厂 | Polyether compound modified polysiloxane body defoaming agent, and preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641097A (en) * | 2004-12-10 | 2005-07-20 | 曹治平 | Moderate temperature prnited and dyed organosilicon anti-bubbling and its preparing method |
| CN102284198A (en) * | 2011-05-18 | 2011-12-21 | 黄山市强力化工有限公司 | Water-soluble polyether modified organic silicon defoaming agent as well as preparation and compounding methods thereof |
| CN102343165A (en) * | 2011-10-20 | 2012-02-08 | 山东大易化工有限公司 | Efficient silicone defoaming agent |
| CN107115695A (en) * | 2017-04-21 | 2017-09-01 | 苏州博纳化学科技有限公司 | Defoamer of fluorine richness silicone oil and preparation method thereof |
| CN107475735A (en) * | 2017-07-11 | 2017-12-15 | 沈阳瑞驰表面技术有限公司 | Organic silicon defoamer of cold-rolled steel sheet cleaning and preparation method thereof |
| CN107670340A (en) * | 2017-11-15 | 2018-02-09 | 四川科立鑫新材料有限公司 | A kind of Polyether Modified Polysiloxanes Defoaming Agent |
| CN109563303A (en) * | 2016-08-03 | 2019-04-02 | 美国陶氏有机硅公司 | Sudo controlling compositions comprising organosilicon material |
-
2019
- 2019-12-30 CN CN201911397299.8A patent/CN111111266A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641097A (en) * | 2004-12-10 | 2005-07-20 | 曹治平 | Moderate temperature prnited and dyed organosilicon anti-bubbling and its preparing method |
| CN102284198A (en) * | 2011-05-18 | 2011-12-21 | 黄山市强力化工有限公司 | Water-soluble polyether modified organic silicon defoaming agent as well as preparation and compounding methods thereof |
| CN102343165A (en) * | 2011-10-20 | 2012-02-08 | 山东大易化工有限公司 | Efficient silicone defoaming agent |
| CN109563303A (en) * | 2016-08-03 | 2019-04-02 | 美国陶氏有机硅公司 | Sudo controlling compositions comprising organosilicon material |
| CN107115695A (en) * | 2017-04-21 | 2017-09-01 | 苏州博纳化学科技有限公司 | Defoamer of fluorine richness silicone oil and preparation method thereof |
| CN107475735A (en) * | 2017-07-11 | 2017-12-15 | 沈阳瑞驰表面技术有限公司 | Organic silicon defoamer of cold-rolled steel sheet cleaning and preparation method thereof |
| CN107670340A (en) * | 2017-11-15 | 2018-02-09 | 四川科立鑫新材料有限公司 | A kind of Polyether Modified Polysiloxanes Defoaming Agent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744236A (en) * | 2020-08-14 | 2020-10-09 | 杭州富阳诚科通信材料有限公司 | Polyether modified organic silicon defoaming agent and preparation method thereof |
| CN112023452A (en) * | 2020-08-19 | 2020-12-04 | 肇庆领誉环保实业有限公司 | Defoaming agent for domestic sewage treatment and preparation method thereof |
| CN112023452B (en) * | 2020-08-19 | 2022-02-11 | 肇庆领誉环保实业有限公司 | Defoaming agent for domestic sewage treatment and preparation method thereof |
| CN111974032A (en) * | 2020-09-07 | 2020-11-24 | 安徽銮威化工科技开发有限公司 | Modified organic silicon defoaming agent and preparation method thereof |
| CN113546452A (en) * | 2021-04-28 | 2021-10-26 | 淄博惠生工贸有限公司 | Modified organic silicon defoaming agent and preparation method thereof |
| CN114632352A (en) * | 2022-03-31 | 2022-06-17 | 山东师范大学实验厂 | Polyether compound modified polysiloxane body defoaming agent, and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111111266A (en) | Modified organic silicon defoaming agent and preparation method thereof | |
| CN110960892A (en) | Efficient water-based paint defoaming agent and preparation method thereof | |
| CN101780383B (en) | Aqueous emulsion non-silicon defoamer and preparation method thereof | |
| CN105148571B (en) | For the preparation method of the defoamer of water-based system | |
| CN106215466A (en) | A kind of preparation method of high stability of siloxane defoamer | |
| CN113069796B (en) | Organic silicon defoaming agent for water-based paint and preparation method thereof | |
| CN107469411B (en) | A kind of preparation method of organic silicon defoamer | |
| CN111974032A (en) | Modified organic silicon defoaming agent and preparation method thereof | |
| WO2021203556A1 (en) | Organosilicon composite emulsion defoamer for papermaking industry, and preparation method therefor | |
| CN103669108B (en) | A kind of paper industry silicone defoaming agent and preparation method thereof | |
| CN105289048A (en) | Organic silicon-modified polyether ester emulsion defoamer and preparation method thereof | |
| US3250727A (en) | Defoaming agents containing methylsiloxanes | |
| CN106267913A (en) | A kind of high stability of siloxane defoamer | |
| CN107648890A (en) | A kind of oil industry defoaming agent composition and preparation method thereof | |
| CN106237662A (en) | A kind of preparation method of organic silicon defoamer | |
| CN106215467A (en) | A kind of organic silicon defoamer | |
| CN115317962A (en) | Emulsion type defoaming agent and preparation method thereof | |
| KR101638010B1 (en) | Self-emulsible non-silicon defoamer composition | |
| CN106215468A (en) | A kind of silicone antifoaming agent and preparation method thereof | |
| CN112604325A (en) | Organic silicon modified unsaturated higher fatty alcohol ester defoaming agent and preparation method thereof | |
| CN112717479A (en) | Polyether defoaming agent and preparation method thereof | |
| JP5649376B2 (en) | Defoamer for kraft pulp manufacturing process | |
| CN117926629A (en) | Fluorine-containing silicon paste defoamer and preparation method and application thereof | |
| CN116272000A (en) | Acid-resistant defoamer and preparation method thereof | |
| CN106345146A (en) | Defoaming agent for strong-basic metal degreasing agents and preparation method of defoaming agent |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200508 |