CN115613046A - Low-foam cleaning agent and preparation method thereof - Google Patents
Low-foam cleaning agent and preparation method thereof Download PDFInfo
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- CN115613046A CN115613046A CN202211196579.4A CN202211196579A CN115613046A CN 115613046 A CN115613046 A CN 115613046A CN 202211196579 A CN202211196579 A CN 202211196579A CN 115613046 A CN115613046 A CN 115613046A
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- deionized water
- organic silicon
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- 239000006260 foam Substances 0.000 title claims abstract description 31
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000008367 deionised water Substances 0.000 claims abstract description 32
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 239000013530 defoamer Substances 0.000 claims abstract description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 27
- 239000010703 silicon Substances 0.000 claims abstract description 27
- 239000000839 emulsion Substances 0.000 claims abstract description 22
- 239000004135 Bone phosphate Substances 0.000 claims abstract description 14
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 14
- 150000001733 carboxylic acid esters Chemical class 0.000 claims abstract description 14
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940043237 diethanolamine Drugs 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- -1 alkylolamide Chemical compound 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 235000019795 sodium metasilicate Nutrition 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 6
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000003995 emulsifying agent Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 150000002191 fatty alcohols Chemical class 0.000 claims description 13
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 12
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 12
- 229910021485 fumed silica Inorganic materials 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000002209 hydrophobic effect Effects 0.000 claims description 12
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 12
- 239000001488 sodium phosphate Substances 0.000 claims description 12
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 12
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 6
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 8
- 229960001763 zinc sulfate Drugs 0.000 description 8
- 229910000368 zinc sulfate Inorganic materials 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses a low-foam cleaning agent and a preparation method thereof, wherein the low-foam cleaning agent comprises the following raw materials in parts by weight: 1.5-2 parts of sodium metasilicate, 0.3-2.5 parts of sodium dodecyl sulfate, 1-3.5 parts of alkylolamide, 5-10 parts of diethanolamine, 0.5-1.5 parts of corrosion inhibitor, 1-2 parts of solubilizer, 0.1-0.5 part of organic silicon defoamer emulsion, 2-5 parts of poly-tribasic carboxylic acid ester and 90-95 parts of deionized water; adding sodium dodecyl sulfate, alkylolamide, diethanol amine, a corrosion inhibitor, a solubilizer, an organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent; the cleaning agent can effectively remove stains on the surface of metal, can effectively protect the surface of metal due to low alkalinity, and has the characteristics of low foam and easy rinsing due to the addition of the organic silicon defoamer emulsion.
Description
Technical Field
The invention relates to the technical field of cleaning, in particular to a low-foam cleaning agent and a preparation method thereof.
Background
After the metal workpiece is machined, the surface of the metal workpiece can carry dirt, such as various cutting fluids, guide rail oil and the like, if the metal workpiece is not cleaned, the smooth operation of a machining process is influenced, the corrosion of the metal surface is caused and accelerated, and the machining quality and the service life of a product are influenced. In addition, the cleaning process is not required to be performed before the finish machining such as plating, phosphating (silanization), glazing, painting and the like, and in the maintenance and repair of mechanical equipment. The selection of the cleaning process and the quality of the cleaning effect relate to the major problems of safety, energy, environmental protection and the like, and directly influence the performance and quality of the product, so the cleaning process becomes an indispensable important link in modern industrial production. However, water-based metal cleaning agents are prone to foaming and residue, and in severe cases, a large amount of surfactant is taken away by overflowing foam, so that the service life of the cleaning agent is shortened, and the cleaning efficiency is reduced by the foam.
Disclosure of Invention
In order to solve the technical problems, the invention provides a low-foam cleaning agent and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
the low-foam cleaning agent comprises the following raw materials in parts by weight: 1.5-2 parts of sodium metasilicate, 0.3-2.5 parts of sodium dodecyl sulfate, 1-3.5 parts of alkylolamide, 5-10 parts of diethanolamine, 0.5-1.5 parts of corrosion inhibitor, 1-2 parts of solubilizer, 0.1-0.5 part of organic silicon defoamer emulsion, 2-5 parts of poly-tribasic carboxylic acid ester and 90-95 parts of deionized water;
the organic silicon defoamer emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, and carrying out heat preservation reaction for 1h to prepare modified fumed silica;
s2, mixing the modified fumed silica and the dimethyl silicon oil, heating to 150-180 ℃, and stirring for 3 hours under the condition of heat preservation to obtain a mixture;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
Further, the method comprises the following steps: in the step S1, the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol is controlled to be 100: 5-8: 3-5, and in the step S2, the weight ratio of the mixture to the fatty alcohol to the sodium phosphate to the composite emulsifier to the deionized water is controlled to be 50-80: 10-20: 5-10: 25-35: 500-600.
Further: the compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
A preparation method of a low-foam cleaning agent comprises the following steps:
adding sodium dodecyl sulfate, alkylolamide, diethanol amine, a corrosion inhibitor, a solubilizer, an organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
The invention has the beneficial effects that:
the low-foam cleaning agent can effectively remove stains on the metal surface, can effectively protect the metal surface due to low alkalinity, is added with the organosilicon defoamer emulsion, so that the cleaning agent has the characteristic of low foam and easy rinsing, can increase the spreading coefficient of the organosilicon defoamer by introducing fatty alcohol into the organosilicon defoamer in the preparation process, reduces the entry barrier of the defoamer, forms a loose unstable film surface on the surface of a foam film, accelerates the rupture of the foam film, can destroy the charge stability on the surface of the foam film by introducing high-valent phosphate, accelerates the aging and combination of the foam film, and has the synergistic defoaming effect with other components.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, 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.
Example 1
The low-foam cleaning agent comprises the following raw materials in parts by weight: 1.5 parts of sodium metasilicate, 0.3 part of sodium dodecyl sulfate, 1 part of alkylolamide, 5 parts of diethanolamine, 0.5 part of zinc sulfate, 1 part of solubilizer, 0.1 part of organic silicon defoamer emulsion, 2 parts of poly-tribasic carboxylic ester and 90 parts of deionized water;
adding sodium dodecyl sulfate, alkylolamide, diethanolamine, zinc sulfate, solubilizer, organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
The organic silicon defoamer emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, carrying out heat preservation reaction for 1 hour to prepare modified fumed silica, and controlling the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol to be 100: 5: 3;
s2, mixing the modified fumed silica and the dimethyl silicon oil, heating to 150 ℃, keeping the temperature and stirring for 3 hours to prepare a mixture, and controlling the weight ratio of the mixture, the fatty alcohol, the sodium phosphate, the composite emulsifier and the deionized water to be 50: 10: 5: 25: 500;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
The compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
Example 2
The low-foam cleaning agent comprises the following raw materials in parts by weight: 1.6 parts of sodium metasilicate, 0.5 part of sodium dodecyl sulfate, 2 parts of alkylolamide, 6 parts of diethanolamine, 0.8 part of zinc sulfate, 1 part of solubilizer, 0.3 part of organic silicon defoamer emulsion, 3 parts of poly-tribasic carboxylic ester and 92 parts of deionized water;
adding sodium dodecyl sulfate, alkylolamide, diethanolamine, zinc sulfate, solubilizer, organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
The organic silicon defoamer emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, and carrying out heat preservation reaction for 1h to prepare modified fumed silica, wherein the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol is controlled to be 100: 6: 4;
s2, mixing the modified fumed silica and the dimethyl silicon oil, heating to 160 ℃, keeping the temperature and stirring for 3 hours to prepare a mixture, and controlling the weight ratio of the mixture, the fatty alcohol, the sodium phosphate, the composite emulsifier and the deionized water to be 60: 10-20: 6: 28: 550;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
The compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
Example 3
The low-foam cleaning agent comprises the following raw materials in parts by weight: 1.8 parts of sodium metasilicate, 2 parts of sodium dodecyl sulfate, 3 parts of alkylolamide, 8 parts of diethanolamine, 1.2 parts of zinc sulfate, 2 parts of solubilizer, 0.4 part of organic silicon defoamer emulsion, 4 parts of poly-tribasic carboxylic ester and 94 parts of deionized water;
adding sodium dodecyl sulfate, alkylolamide, diethanolamine, zinc sulfate, solubilizer, organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
The organic silicon defoaming agent emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, and carrying out heat preservation reaction for 1h to prepare modified fumed silica, wherein the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol is controlled to be 100: 6: 4;
s2, mixing the modified fumed silica and the dimethyl silicon oil, heating to 180 ℃, keeping the temperature and stirring for 3 hours to prepare a mixture, and controlling the weight ratio of the mixture, the fatty alcohol, the sodium phosphate, the composite emulsifier and the deionized water to be 70: 18: 8: 32: 580;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
The compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
Example 4
The low-foam cleaning agent comprises the following raw materials in parts by weight: 2 parts of sodium metasilicate, 2.5 parts of sodium dodecyl sulfate, 3.5 parts of alkylolamide, 10 parts of diethanolamine, 1.5 parts of zinc sulfate, 2 parts of solubilizer, 0.5 part of organic silicon defoamer emulsion, 5 parts of poly-tribasic carboxylic ester and 95 parts of deionized water;
adding sodium dodecyl sulfate, alkylolamide, diethanolamine, zinc sulfate, solubilizer, organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
The organic silicon defoaming agent emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, and carrying out heat preservation reaction for 1h to prepare modified fumed silica, wherein the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol is controlled to be 100: 8: 5;
s2, mixing the modified fumed silica and the dimethyl silicone oil, heating to 180 ℃, keeping the temperature and stirring for 3 hours to prepare a mixture, wherein the weight ratio of the mixture to the fatty alcohol to the sodium phosphate to the composite emulsifier to the deionized water is 80: 20: 10: 35: 600;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
The compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
Comparative example 1
This comparative example compares to example 1 without the addition of a silicone defoamer emulsion.
Comparative example 2
This comparative example is a commercially available low foam cleaner from a company.
30mL of the cleaning agent prepared in examples 1-4 and comparative examples 1-2 was transferred into a 100mL measuring cylinder, covered with a stopper, and immediately shaken up and down for 1min at 5 deg.C (freezer operation), room temperature (20 deg.C), and higher temperature (50 deg.C), wherein the shaking distance is about 0.33m, and the frequency is about 100-110 times/min; after shaking, the bung was opened, placed in a freezer/water bath and allowed to stand for 10min, the foam disappearance time(s) was observed and recorded, with the results shown in the following table:
| 5℃ | 20℃ | 50℃ | |
| example 1 | 4 | 8 | 11 |
| Example 2 | 5 | 8 | 11 |
| Example 3 | 4 | 8 | 10 |
| Example 4 | 4 | 7 | 10 |
| Comparative example 1 | 10 | 15 | 21 |
| Comparative example 2 | 9 | 13 | 20 |
From the above table, it can be seen that the defoamers prepared in examples 1 to 4 of the present invention have a rapid defoaming property.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (4)
1. A low-foam cleaning agent is characterized in that: the feed comprises the following raw materials in parts by weight: 1.5-2 parts of sodium metasilicate, 0.3-2.5 parts of sodium dodecyl sulfate, 1-3.5 parts of alkylolamide, 5-10 parts of diethanolamine, 0.5-1.5 parts of corrosion inhibitor, 1-2 parts of solubilizer, 0.1-0.5 part of organic silicon defoamer emulsion, 2-5 parts of poly-tribasic carboxylic ester and 90-95 parts of deionized water;
the organic silicon defoamer emulsion is prepared by the following steps:
step S1, mixing hydrophobic fumed silica, ammonium dihydrogen phosphate and 1-octanol, heating to 100 ℃, and carrying out heat preservation reaction for 1h to prepare modified fumed silica;
s2, mixing the modified fumed silica and the dimethyl silicon oil, heating to 150-180 ℃, and stirring for 3 hours under the condition of heat preservation to obtain a mixture;
and S3, uniformly mixing the prepared mixture, fatty alcohol, sodium phosphate and a composite emulsifier at 70 ℃, then slowly adding deionized water, stirring at a constant speed for 20min, then continuously adding deionized water, stirring for 20min, and cooling to room temperature to prepare the organic silicon defoamer emulsion.
2. A low foaming cleaning agent as claimed in claim 1 wherein: in the step S1, the weight ratio of the hydrophobic fumed silica to the ammonium dihydrogen phosphate to the 1-octanol is controlled to be 100: 5-8: 3-5, and in the step S2, the weight ratio of the mixture to the fatty alcohol to the sodium phosphate to the composite emulsifier to the deionized water is controlled to be 50-80: 10-20: 5-10: 25-35: 500-600.
3. The low foaming cleaning agent according to claim 1, wherein: the compound emulsifier is formed by mixing span-80 and tween-60 according to the weight ratio of 5: 1.
4. The method for preparing a low-foaming cleaning agent as claimed in claim 1, wherein the method comprises the following steps: the method comprises the following steps:
adding sodium dodecyl sulfate, alkylolamide, diethanol amine, a corrosion inhibitor, a solubilizer, an organic silicon defoamer and poly-tribasic carboxylic ester into deionized water, and uniformly mixing to prepare the low-foam cleaning agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196579.4A CN115613046A (en) | 2022-09-29 | 2022-09-29 | Low-foam cleaning agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196579.4A CN115613046A (en) | 2022-09-29 | 2022-09-29 | Low-foam cleaning agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115613046A true CN115613046A (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211196579.4A Withdrawn CN115613046A (en) | 2022-09-29 | 2022-09-29 | Low-foam cleaning agent and preparation method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN115613046A (en) |
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- 2022-09-29 CN CN202211196579.4A patent/CN115613046A/en not_active Withdrawn
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Application publication date: 20230117 |