CN106512487B - A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy - Google Patents
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy Download PDFInfo
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- CN106512487B CN106512487B CN201610944035.XA CN201610944035A CN106512487B CN 106512487 B CN106512487 B CN 106512487B CN 201610944035 A CN201610944035 A CN 201610944035A CN 106512487 B CN106512487 B CN 106512487B
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- 239000002518 antifoaming agent Substances 0.000 title claims abstract description 64
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 64
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 37
- 239000011734 sodium Substances 0.000 title claims abstract description 37
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical class NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 title claims abstract description 36
- -1 polysiloxane Polymers 0.000 title claims abstract description 36
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims description 24
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- TUDXHDSCPJSDIO-UHFFFAOYSA-N 4-amino-2-hydroxybenzoic acid;sodium Chemical compound [Na].NC1=CC=C(C(O)=O)C(O)=C1 TUDXHDSCPJSDIO-UHFFFAOYSA-N 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims description 9
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 claims description 4
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 claims description 3
- KZUBXUKRWLMPIO-UHFFFAOYSA-N 4-methylhexan-2-ol Chemical class CCC(C)CC(C)O KZUBXUKRWLMPIO-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004753 textile Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract description 2
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- REWPEPFZCALMJB-UHFFFAOYSA-N 2-hydroxybenzoic acid;sodium Chemical compound [Na].OC(=O)C1=CC=CC=C1O REWPEPFZCALMJB-UHFFFAOYSA-N 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 7
- 239000006260 foam Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical group CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 4
- 238000011017 operating method Methods 0.000 description 4
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 229940113720 aminosalicylate Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002955 immunomodulating agent Substances 0.000 description 1
- 229940121354 immunomodulator Drugs 0.000 description 1
- 230000002584 immunomodulator Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005320 surfactant adsorption Methods 0.000 description 1
- 239000002562 thickening agent 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
- B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to technical field of textile auxiliary agent, disclose one kind 4 amino, 2 polysiloxane-based antifoaming agent of hydroxybenzoic acid sodium synergy and are grouped as by the group of following parts by weight in terms of 100 parts by weight in total：Polyborosiloxane, 0.1 1 parts；4 amino, 2 hydroxybenzoic acid sodium, 0.01 10 parts；Methyl-polysiloxane, 0.6 1 parts；Higher aliphatic, 10 25 parts；Solvent, surplus.The present invention is used as antifoaming agent physical and chemical performance by adding 4 amino, 2 hydroxybenzoic acid sodium synergy polysiloxanes, and dosage is atomic can to reach fabulous brokenly bubble and suds effect, significantly reduce the additive amount of polysiloxanes；And it improves the stability of antifoaming agent, extend the storage term of validity of polysiloxane defoaming agent；Heat-resisting quantity, resistance to acid and alkali and the fingerprinting stress of synergy polysiloxanes can also be improved.
Description
Technical field：
The present invention relates to technical field of textile auxiliary agent more particularly to a kind of poly- silicon of 4- amino-2-hydroxybenzoic acids sodium synergy
Oxygen alkanes antifoaming agent.
Background technology：
SURFACTANT ADSORPTION causes liquid level reduction in surface tension on gas-liquid interface, to increase gas-liquid contact face,
Bubble is just not easy to merge in this way.The relative density of bubble is more much smaller than liquid itself, when the bubble of rising penetrates liquid level, and handle
Layer of surface active agent molecule absorption on liquid level is got on.Therefore, the aerial bubble for being adsorbed with surfactant of exposure
Bubble chamber film in film and solution is different, it is surrounded by two layers of surface active agent molecule, forms bimolecular film, and the surface adsorbed is lived
Property agent to liquid film have protective effect.Antifoaming agent seeks to destroy and inhibit the formation of this film, and antifoaming agent enters the double of foam
Molecular orientation film destroys the mechanical balance of oriented film and reaches brokenly bubble effect.
Polysiloxane-based defoaming immunomodulator compounds are generally insoluble in water, and it is more difficult emulsified by surfactant, this
Outside, also there is surface tension more lower than general surfactant and extremely low surface viscosity and good spreading property, so
It is widely used as permanent antifoaming agent, there are brokenly bubble and suds double effects.But preparing polysiloxane-based antifoaming agent
When usually require addition four kinds of bases：Active constituent silicones, emulsifier, carrier and thickener,
Raw material components are more complex and silicones usage amount is big.
Invention content：
The purpose of the present invention is to provide a kind of novel polysiloxane defoaming agents, add 4- amino-2-hydroxybenzoic acids
Sodium synergy polysiloxanes significantly reduces the additive amount of polysiloxanes as antifoaming agent physical and chemical performance, and improves the steady of antifoaming agent
It is qualitative, reduce the addition of tackifier.
In order to achieve the above object, the application provides following technical scheme：
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.1-1 parts；4- amino-2-hydroxybenzoic acid sodium：0.01-10 parts；
Methyl-polysiloxane：0.6-1 parts；Higher aliphatic：10-25 parts；
Solvent：Surplus.
Preferably, it in terms of 100 parts by weight in total, is grouped as by the group of following parts by weight：
Polyborosiloxane：0.2-0.8 parts；4- amino-2-hydroxybenzoic acid sodium：0.1-5 parts；
Methyl-polysiloxane：0.6-1 parts；Higher aliphatic：10-25 parts；
Solvent：Surplus.
Preferably, the average molecular weight of the polyborosiloxane is 1000-8000, and the viscosity at 25 DEG C is 5-
400Pa·S。
Preferably, in the methyl-polysiloxane molar fraction range of phenyl in 40-45%, 20 DEG C of kinematic viscosity
For 1000~5000cSt.
Preferably, the higher aliphatic is 4- methyl -2- hexanols, isooctanol, 3- enanthol, isomerous tridecanol, 2- hexyls
One or more of decyl alcohol, tetradecyl alchohol, hexadecanol；
The solvent is water.
Preferably, the preparation method of the antifoaming agent is that 4- amino-2-hydroxybenzoic acid sodium will be added in a part of solvent
It is mixed with higher aliphatic, is heated to 40-50 DEG C, insulated and stirred is handled 1-2 minutes；Then slowly add under stirring
Addition polymerization Borosiloxane, insulated and stirred is handled 3-5 minutes after being heated to 60-65 DEG C；Continuation is slowly added under stirring
Methyl-polysiloxane, is heated to 70-75 DEG C, and insulated and stirred 10-20 minutes is finally added remaining solvent and slowly stirred
It mixes and obtains antifoaming agent after being cooled to room temperature.
The Chinese of 4- amino-2-hydroxybenzoic acid sodium:Sodium para-aminosalicylate is medically mainly used for tulase sense
The complex treatment of dye.The present invention adds main component one of of the 4- amino-2-hydroxybenzoic acids sodium as textile auxiliary antifoaming agent,
Can effective defoaming suds suppressing properties of the synergy silicones as antifoaming agent, and the stabilization of antifoaming agent can be improved
Property, to reduce the use of tackifier, there is higher economic benefit.
The invention has the advantages that：
(1), main component one of of the present invention addition 4- amino-2-hydroxybenzoic acids sodium as textile auxiliary antifoaming agent,
Can effective defoaming suds suppressing properties of the synergy silicones as antifoaming agent, it is polysiloxane-based to greatly reduced
The use of substance, increases economic efficiency.
(2), 4- amino-2-hydroxybenzoic acids sodium can improve the stability of polysiloxane-based antifoaming agent, to reduce
The use of tackifier has higher economic benefit.
(3), 4- amino-2-hydroxybenzoic acids sodium can also improve the heat-resisting quantity of synergy polysiloxanes, resistance to acid and alkali and
Fingerprinting stress, dosage is atomic can to reach fabulous brokenly bubble and suds effect.
(4), the addition of 4- amino-2-hydroxybenzoic acids sodium can also improve the stable storing of polysiloxane-based antifoaming agent
Property, extend the storage term of validity of polysiloxane defoaming agent.
(5), antifoaming agent of the present invention is of low cost, for environment almost without pollution, has high economic benefit and life
State benefit.
Specific implementation mode：
In order to better understand the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.1 part；4- amino-2-hydroxybenzoic acid sodium：0.01 part；
Methyl-polysiloxane：0.6 part；4- methyl -2- hexanols：10 parts；
Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 40
DEG C, insulated and stirred is handled 1 minute；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 3 minutes after being heated to 60 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 70 DEG C, insulated and stirred 10 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 2
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：1 part；4- amino-2-hydroxybenzoic acid sodium：10 parts；
Methyl-polysiloxane：1 part；3- enanthol：10 parts；
Isomerous tridecanol：15 parts；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 50
DEG C, insulated and stirred is handled 2 minutes；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 5 minutes after being heated to 65 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 75 DEG C, insulated and stirred 20 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 3
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.2 part；4- amino-2-hydroxybenzoic acid sodium：1 part；
Methyl-polysiloxane：0.6 part；4- methyl -2- hexanols：5 parts；
3- enanthol：5 parts；Isomerous tridecanol：5 parts；2- hexyl decyl alcohols：5 parts；
Tetradecyl alchohol：5 parts；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 40
DEG C, insulated and stirred is handled 1 minute；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 3 minutes after being heated to 60 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 75 DEG C, insulated and stirred 10 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 4
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.2 part；4- amino-2-hydroxybenzoic acid sodium：5 parts；
Methyl-polysiloxane：0.6 part；3- enanthol：6 parts；
2- hexyl decyl alcohols：6 parts；Hexadecanol：10 parts；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 45
DEG C, insulated and stirred is handled 1 minute；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 3 minutes after being heated to 65 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 70 DEG C, insulated and stirred 20 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 5
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.8 part；4- amino-2-hydroxybenzoic acid sodium：5 parts；
Methyl-polysiloxane：1 part；4- methyl -2- hexanols：6 parts；
Isomerous tridecanol：2 parts；Tetradecyl alchohol：1 part；
Hexadecanol：1 part；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 40
DEG C, insulated and stirred is handled 2 minutes；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 3 minutes after being heated to 65 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 70 DEG C, insulated and stirred 20 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 6
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.6 part；4- amino-2-hydroxybenzoic acid sodium：3 parts；
Methyl-polysiloxane：0.7 part；Isooctanol：10 parts；
3- enanthol：5 parts；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 45
DEG C, insulated and stirred is handled 1 minute；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 3 minutes after being heated to 60 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 75 DEG C, insulated and stirred 10 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Embodiment 7
A kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, in terms of 100 parts by weight in total, by with
The group of lower parts by weight is grouped as：
Polyborosiloxane：0.5 part；4- amino-2-hydroxybenzoic acid sodium：4 parts；
Methyl-polysiloxane：0.9 part；Isomerous tridecanol：1 part；
Tetradecyl alchohol：10 parts；Water：Surplus.
The preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 40
DEG C, insulated and stirred is handled 1 minute；
Then it is slowly added polyborosiloxane under stirring, insulated and stirred is handled 5 minutes after being heated to 65 DEG C；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 70 DEG C, insulated and stirred 10 is divided
Clock；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
Comparative example 1
A kind of polysiloxane-based antifoaming agent is grouped as in terms of 100 parts by weight in total by the group of following parts by weight：
Polyborosiloxane：0.5 part；Methyl-polysiloxane：0.9 part；
Isomerous tridecanol：1 part；Tetradecyl alchohol：10 parts；Water：Surplus.
Its raw material components is identical as embodiment seven as preparation method in addition to without containing 4- amino-2-hydroxybenzoic acid sodium.
Comparative example 2
A kind of polysiloxane-based antifoaming agent is grouped as in terms of 100 parts by weight in total by the group of following parts by weight：
Polyborosiloxane：5 parts；Methyl-polysiloxane：9 parts；
Isomerous tridecanol：1 part；Tetradecyl alchohol：10 parts；
Ethyl cellulose：30 parts；Water：Surplus.
Ethyl cellulose is mixed in the first step of operating procedure with higher aliphatic, remaining operating method and seven phase of embodiment
Together.
Comparative example 3
A kind of polysiloxane-based antifoaming agent is grouped as in terms of 100 parts by weight in total by the group of following parts by weight：
Polyborosiloxane：15 parts；Methyl-polysiloxane：18 parts；
Isomerous tridecanol：20 parts；Tetradecyl alchohol：20 parts；
Ethyl cellulose：20 parts；Water：Surplus.
Ethyl cellulose is mixed in the first step of operating procedure with higher aliphatic, remaining operating method and seven phase of embodiment
Together.
Antifoam performance experiment test：
0.25% neopelex of 200mL is added in 1L graduated cylinders, leads to N thereto2, flow 3L/min, when
When foam height reaches 1L scales, thereto be added 2g/L antifoaming agent, stirring 1-2 minutes after start recording lather collapse when
Between, this is foam time；
0.25% neopelex of 200mL is added in 1L graduated cylinders, the antifoaming agent of 2g/L, stirring are added thereto
Lead to N after 1-2 minutes thereto2, flow 3L/min records foam and reaches required time when 1L scales, this is suds
Time.
Table one：The antifoam performance of the embodiment of the present invention and comparative example antifoaming agent is tested
The result is indicated with average ± variance.Foam does not disappear yet after 30+ was represented more than 30 seconds.
Foam time of the embodiment of the present invention is short, and the suds time is long, and compared with comparative example, antifoaming agent has good defoaming
Energy.
Claims (6)
1. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy, which is characterized in that with 100 weight in total
Part meter, is grouped as by the group of following parts by weight：
Polyborosiloxane：0.1-1 parts；4- amino-2-hydroxybenzoic acid sodium：0.01-10 parts；
Methyl-polysiloxane：0.6-1 parts；Higher aliphatic：10-25 parts；
Solvent：Surplus.
2. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy according to claim 1, feature
It is, in terms of 100 parts by weight in total, is grouped as by the group of following parts by weight：
Polyborosiloxane：0.2-0.8 parts；4- amino-2-hydroxybenzoic acid sodium：0.1-5 parts；
Methyl-polysiloxane：0.6-1 parts；Higher aliphatic：10-25 parts；
Solvent：Surplus.
3. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy according to claim 1, feature
It is：The average molecular weight of the polyborosiloxane is 1000-8000, and the viscosity at 25 DEG C is 5-400PaS.
4. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy according to claim 1, feature
It is：The molar fraction range of phenyl is in 40-45% in the methyl-polysiloxane, and 20 DEG C of kinematic viscosity are 1000~
5000cSt。
5. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy according to claim 1, feature
It is：The higher aliphatic is 4- methyl -2- hexanols, isooctanol, 3- enanthol, isomerous tridecanol, 2- hexyl decyl alcohols, 14
One or more of alcohol, hexadecanol；The solvent is water.
6. a kind of polysiloxane-based antifoaming agent of 4- amino-2-hydroxybenzoic acids sodium synergy according to claim 1, feature
It is, the preparation method of the antifoaming agent is:
It is mixed 4- amino-2-hydroxybenzoic acid sodium is added in a part of solvent with higher aliphatic, is heated to 40-50
DEG C, insulated and stirred is handled 1-2 minutes；
Then it is slowly added polyborosiloxane under stirring, 3-5 points of insulated and stirred processing after being heated to 60-65 DEG C
Clock；
Continuation is slowly added methyl-polysiloxane under stirring, is heated to 70-75 DEG C, insulated and stirred 10-20
Minute；
Remaining solvent is finally added to be slowly stirred and obtain antifoaming agent after being cooled to room temperature.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700587A (en) * | 1971-03-01 | 1972-10-24 | Nalco Chemical Co | Silicone oil antifoam |
| CN101442980A (en) * | 2006-05-11 | 2009-05-27 | 伊士曼化工公司 | Water resistant sunscreen formulas with sulfopolyesters and phosphate ester surfactants |
| CN102500140A (en) * | 2011-10-25 | 2012-06-20 | 金浦新材料股份有限公司 | High temperature resistant defoamer for delaying coking reaction tower |
| CN103768831A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | High temperature stable defoaming agent and application thereof in delay coking |
-
2016
- 2016-11-02 CN CN201610944035.XA patent/CN106512487B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700587A (en) * | 1971-03-01 | 1972-10-24 | Nalco Chemical Co | Silicone oil antifoam |
| CN101442980A (en) * | 2006-05-11 | 2009-05-27 | 伊士曼化工公司 | Water resistant sunscreen formulas with sulfopolyesters and phosphate ester surfactants |
| CN102500140A (en) * | 2011-10-25 | 2012-06-20 | 金浦新材料股份有限公司 | High temperature resistant defoamer for delaying coking reaction tower |
| CN103768831A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | High temperature stable defoaming agent and application thereof in delay coking |
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