CN106879582A - Low bubble dispersant, its preparation method and application - Google Patents
Low bubble dispersant, its preparation method and application Download PDFInfo
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- CN106879582A CN106879582A CN201710176314.0A CN201710176314A CN106879582A CN 106879582 A CN106879582 A CN 106879582A CN 201710176314 A CN201710176314 A CN 201710176314A CN 106879582 A CN106879582 A CN 106879582A
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- monomer
- low bubble
- dispersant
- preparation
- bubble dispersant
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- 239000002270 dispersing agent Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000000178 monomer Substances 0.000 claims abstract description 58
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 21
- 229920000570 polyether Polymers 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000003999 initiator Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000375 suspending agent Substances 0.000 claims abstract description 8
- 239000004562 water dispersible granule Substances 0.000 claims abstract description 6
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims abstract description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims abstract description 3
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 25
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 22
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- -1 alkyl methacrylate Chemical compound 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003905 agrochemical Substances 0.000 claims description 3
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 claims description 3
- 229940117958 vinyl acetate Drugs 0.000 claims description 3
- FKOZPUORKCHONH-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid Chemical class CC(C)CS(O)(=O)=O FKOZPUORKCHONH-UHFFFAOYSA-N 0.000 claims description 2
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000002585 base Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000000575 pesticide Substances 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 31
- 239000000047 product Substances 0.000 description 16
- 238000009736 wetting Methods 0.000 description 13
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 239000000080 wetting agent Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- 239000012265 solid product Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002085 persistent effect Effects 0.000 description 3
- 239000004563 wettable powder Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000361 pesticidal effect Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- YOIZTLBZAMFVPK-UHFFFAOYSA-N 2-(3-ethoxy-4-hydroxyphenyl)-2-hydroxyacetic acid Chemical compound CCOC1=CC(C(O)C(O)=O)=CC=C1O YOIZTLBZAMFVPK-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000005906 Imidacloprid Substances 0.000 description 1
- 241000255964 Pieridae Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 235000010086 Setaria viridis var. viridis Nutrition 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- MXWJVTOOROXGIU-UHFFFAOYSA-N atrazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)C)=N1 MXWJVTOOROXGIU-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical class CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [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])* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 244000230342 green foxtail Species 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 1
- 229940056881 imidacloprid Drugs 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/068—Polysiloxanes
Abstract
The invention discloses the low bubble dispersant of one kind, its preparation method and application, belong to macromolecular compound synthesis technical field.It is by polymer that the weight average molecular weight of monomer A, B and C copolymerization is 5000~35000；Monomer A is polyether modified silicon oil maleate；Preparation method is：（1）Add monomer A, B, lauryl sodium sulfate and water, agitating heating（2）Monomer C and initiator is added dropwise（3）After reaction, cooling, regulation pH is 4~8.Low bubble dispersant of the invention can reduce system foam, be easy to produce and use；The surface tension of aqueous systems can be reduced, makes system that there is relatively low surface tension, and wettability is good；Dispersiveness is improve, system is more stablized；It is uniformly dispersed；Can apply in the preparations such as pesticide wettable, suspending agent, water dispersible granules.
Description
Technical field
The present invention relates to macromolecular compound synthesis technical field, more particularly to a kind of synthetic technology neck of low bubble dispersant
Domain.
Background technology
Dispersant be it is a kind of in intramolecular while having two kinds of interfacial agents of opposite nature of lipophile and hydrophily.Can
It is homogeneous to disperse those to be poorly soluble in the inorganic of liquid, the solid and liquid particles of organic pigment, while also prevent particle
Sedimentation and cohesion, form the suspension of stabilization.
The formula composition of the pesticidal preparations such as wettable powder, water dispersible granules, suspending agent is general all to contain dispersant and profit
Humectant.Preparation preparation process or enter water it is latter as have foam very high, this is because dispersant and wetting agent are surfaces
Activating agent easily bubbles, and foam is for processing and using bringing many inconvenience.For example, the material of suspending agent is in the process being sanded
In easily produce foam, cause very big trouble to production, current practice is that the defoamers such as organosilicon are added in production, but
Because the foamability of auxiliary agent is different, defoamer defoaming capacity preferably but suds ability is poor, addition that in the process will be frequently
Defoamer；Preparation needs dispersed with stirring in use, and foam is also easily produced in whipping process, and liquid is easy when causing to prepare
Overflow container, spray liquor uneven, low bubble dispersant then can be very good to solve the above problems.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of low bubble dispersant, its preparation method and application, of the invention
Low bubble dispersant can reduce system foam, be easy to produce and use；The surface tension of aqueous systems can be reduced, there is system
Relatively low surface tension, and wettability is good；Dispersiveness is improve, system is more stablized；It is uniformly dispersed；Can apply in agriculture
In the preparations such as medicine wettable powder, suspending agent, water dispersible granules.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of low bubble dispersant, it is by monomer
The weight average molecular weight of A, B and C copolymerization is 5000~35000 polymer；
Monomer A is polyether modified silicon oil maleate, and as shown in I, m is 0~10 integer to structural formula, and n is 3~53 integer；
Monomer B be sodium vinyl sulfonate, acrylic sodium sulfonate, methylpropene sodium sulfonate, SSS, 2- acrylamides-
One or more in 2- methyl propane sulfonic acids；
Monomer C is the one kind in alkyl acrylate, alkyl methacrylate, styrene, methyl styrene, vinylacetate
Or it is two or more；
The mol ratio of wherein monomer A and monomer B is 0.1:1~1:1, monomer A are 1 with the mol ratio of monomer C:1~1:10；
Ⅰ。
The molecular weight of monomer A is 500~3500.
The preparation method of monomer A is：In the reactor equipped with toluene, polyether modified silicon oil and maleic anhydride are added, treated
All after dissolving, heating, stirring stops heating after terminating to reaction, removes toluene and residual maleic anhydride, cooling discharge.
Polyether modified silicon oil is 1 with the mol ratio of maleic anhydride:1~1:2.
Preferred polyether modified silicon oil is 1 with the mol ratio of maleic anhydride:1.2.
After after polyether modified silicon oil and maleic anhydride all dissolving in the preparation process of monomer A, stirred at 30 DEG C~60 DEG C
After mixing 3~10h of reaction, stop heating, remove toluene and residual maleic anhydride, cooling discharge.
Polyether modified silicon oil is the existing compound of in the market, it is also possible to reference《The preparation of polyether modified silicon oil and its in cotton
Application in comfort of fabric arrangement》（Appoint Xinhua etc., Institutes Of Technology Of Zhejiang's journal, 26 (2), 2009:189-194.）Closed
Into i.e. 0.16%~0.18% containing hydrogen silicone oil and allyl polyether in the presence of catalyst, are formed by addition reaction.
Other monomers are existing Conventional compounds, can by city available from.
The preparation method of low bubble dispersant, comprises the following steps：
（1）In the reactor, the mol ratio is added to be converted into the monomer A and B of quality, lauryl sodium sulfate and water, 12
The quality of sodium alkyl sulfate is the 1.5%~4.0% of monomer A and B gross mass, is heated with stirring to 60~90 DEG C；
（2）It is converted into the monomer C of quality and is dissolved in water that to account for all monomers total to the mol ratio is added dropwise in reactor simultaneously
The initiator of quality 0.2%~3%, time for adding is 1~3h；
（3）After 3~6h of reaction, normal temperature is cooled to, it is 4~8 to adjust pH with alkali lye, and fluid product solid content is 25%~40%.
The consumption of low bubble dispersant preparation process reclaimed water will make fluid product solid content be 25%~40%.
Initiator is water-soluble free radical initiator, such as ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate, hydrogen peroxide.
Alkali lye is the aqueous solution of NaOH and/or potassium hydroxide.
The present invention is low, and bubble dispersant liq product is used in agricultural chemicals suspension agent, and fluid product is used for wettable powder after spray drying
In agent, water dispersible granules.
It is using the beneficial effect produced by above-mentioned technical proposal：
（1）Low bubble dispersant of the invention, with low bubble and antifoam performance, makes system due to introducing polyether modified silicon oil side chain
Foam is few, is easy to produce and uses；
（2）Low bubble dispersant of the invention can reduce the surface tension of aqueous systems due to introducing polyether modified silicon oil side chain,
Make system that there is relatively low surface tension, wettability is good；
（3）, due to introducing polyether modified silicon oil side chain, lipophile itself is stronger, can be good at for low bubble dispersant of the invention
Absorption improves dispersiveness on pesticide granules surface, and system is more stablized.
（4）Low bubble dispersant of the invention, with certain emulsibility, is prepared due to introducing polyether modified silicon oil side chain
Suspending agent enter water in vaporific dispersion, be uniformly dispersed.
（5）Because low bubble dispersant of the invention has wettability, extra wetting agent can not be used in formula,
Low-foam wetting agents of the invention can be applied in the preparations such as pesticide wettable, suspending agent, water dispersible granules.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, further
Illustrate the present invention.Except without specified otherwise, " % " representative " mass fraction " in following embodiments.
Embodiment 1
The preparation of monomer A：
In the four-hole boiling flask equipped with 100g toluene, 61.8g polyether modified silicon oils are added（M is that 4, n is 15, and molecular weight is 1236）
With 5.90g maleic anhydrides, after after all dissolvings, the stirring reaction 5h at 40 DEG C stops heating, removes toluene and remaining maleic acid
Acid anhydride, cooling discharge obtains product liquid i.e. monomer A.
The preparation method of low bubble dispersant：
（1）In the reactor, monomer A, 20.6g monomer B of the above-mentioned preparations of 30g is added（SSS）, 1g dodecyls
Sodium sulphate, 80g water, are heated with stirring to 70 DEG C；
（2）To 9.68g monomers C is added dropwise in reactor simultaneously（Methyl acrylate）And initiator solution（0.3g ammonium persulfates with
The mixture of 15g water）, time for adding is 2h；
（3）After reaction 3h, normal temperature is cooled to, it is 5.0 to adjust pH with 30% sodium hydroxide lye, and products obtained therefrom is fluid product, spray
It is solid product after dry.
Embodiment 2
The preparation of monomer A：
In the four-hole boiling flask equipped with 100g toluene, 67.04g polyether modified silicon oils are added（M is that 10, n is 53, and molecular weight is
3352）With 2.36g maleic anhydrides, after after all dissolvings, the stirring reaction 7h at 45 DEG C stops heating, removes toluene and remnants
Maleic anhydride, cooling discharge obtains product liquid i.e. monomer A.
The preparation method of low bubble dispersant：
（1）In the reactor, monomer A, 13.76g monomer B of the above-mentioned preparations of 30g is added（Methylpropene sodium sulfonate）, 0.7g 12
Sodium alkyl sulfate, 90g water, are heated with stirring to 80 DEG C；
（2）To 7.49g monomers C is added dropwise in reactor simultaneously（Styrene）And initiator solution（1.58g sodium peroxydisulfates and 15g
The mixture of water）, time for adding is 2.5h；
（3）After reaction 5h, normal temperature is cooled to, it is 6.0 to adjust pH with 40% potassium hydroxide alkali lye, and products obtained therefrom is fluid product, spray
It is solid product after dry.
Embodiment 3
The preparation of monomer A：
In the four-hole boiling flask equipped with 100g toluene, 72.40g polyether modified silicon oils are added（M is that 7, n is 23, and molecular weight is
1810）With 4.71g maleic anhydrides, after after all dissolvings, the stirring reaction 9h at 35 DEG C stops heating, removes toluene and remnants
Maleic anhydride, cooling discharge obtains product liquid i.e. monomer A.
The preparation method of low bubble dispersant：
（1）In the reactor, monomer A, 13.03g monomer B of the above-mentioned preparations of 30g is added（2- acrylamide -2- methyl-prop sulphurs
Acid）, 1.2g lauryl sodium sulfate, 90g water, be heated with stirring to 85 DEG C；
（2）To 24.94g monomers C is added dropwise in reactor simultaneously（EHMA）And initiator solution（1.02g mistakes
The mixture of sodium sulphate and 15g water）, time for adding is 3h；
（3）After reaction 6h, normal temperature is cooled to, it is 5.5 to adjust pH with 40% potassium hydroxide alkali lye, and products obtained therefrom is fluid product, spray
It is solid product after dry.
Embodiment 4
The preparation of monomer A：
In the four-hole boiling flask equipped with 100g toluene, 73.56g polyether modified silicon oils are added（M is that 2, n is 46, and molecular weight is
2452）With 3.53g maleic anhydrides, after after all dissolvings, the stirring reaction 8h at 40 DEG C stops heating, removes toluene and remnants
Maleic anhydride, cooling discharge obtains product liquid i.e. monomer A.
The preparation method of low bubble dispersant：
（1）In the reactor, monomer A, 12.24g monomer B of the above-mentioned preparations of 30g is added（Sodium vinyl sulfonate）, 1.5g dodecanes
Base sodium sulphate, 90g water, are heated with stirring to 90 DEG C；
（2）To 10.12g monomers C is added dropwise in reactor simultaneously（Vinylacetate）And initiator solution（1.3g sodium peroxydisulfates with
The mixture of 15g water）, time for adding is 2h；
（3）After reaction 4h, normal temperature is cooled to, it is 7.0 to adjust pH with 40% potassium hydroxide alkali lye, and products obtained therefrom is fluid product, spray
It is solid product after dry.
Comparative example 1
Monomer A in embodiment 1 is changed same mole of maleic anhydride into, other specification is with embodiment 1.
Comparative example 2
Monomer A in embodiment 2 is changed same mole of maleic anhydride into, other specification is with embodiment 2.
Comparative example 3
Monomer A in embodiment 3 is changed same mole of maleic anhydride into, other specification is with embodiment 3.
Comparative example 4
Monomer A in embodiment 4 is changed same mole of maleic anhydride into, other specification is with embodiment 4.
In order to preferably evaluate the performance of the low bubble dispersant of synthesis, following test is done：
1. foaming characteristics test
Because the ratio of the dispersant in formula and wetting agent is probably 5:2, select the dispersant and common wetting agent for preparing
AOS mixes, and takes 0.07g and is put into the graduated cylinder for filling 250mL standard hard waters, by GB/T 28137-2011 agricultural chemicals persistent foamabilities
Method of testing is tested, as a result as follows：
| Foam/mL | |
| Embodiment 1 | 0 |
| Embodiment 2 | 0 |
| Embodiment 3 | 0 |
| Embodiment 4 | 0 |
| Comparative example 1 | 50 |
| Comparative example 2 | 50 |
| Comparative example 3 | 50 |
| Comparative example 4 | 50 |
It can be seen that, the low bubble dispersant of the present invention has good low bubble and antifoam performance.
2. wettability test
Embodiment 1 to 4, dispersant prepared by comparative example 1 to 4 are made into the solution of 1000mg/L, are surveyed with surface tension instrument
Examination static surface tension, it is as a result as follows：
| Surface tension/(mN/m) | |
| Water | 70.2 |
| Embodiment 1 | 31.8 |
| Embodiment 2 | 29.7 |
| Embodiment 3 | 30.9 |
| Embodiment 4 | 29.0 |
| Comparative example 1 | 56.8 |
| Comparative example 2 | 58.9 |
| Comparative example 3 | 60.7 |
| Comparative example 4 | 67.8 |
It can be seen that, the low bubble dispersant of the present invention has reduces surface tension performance well, with good wetability.
3. pesticidal preparations formula in application test
(1) application in 35% imidacloprid WP
Because the low bubble dispersant for synthesizing has wettability, wetting agent is added without in formula, evaluating formula is：97% pyrrole worm
Quinoline TC 36.1%, dispersant 5%, sodium sulphate 20%, kaolin complements to 100%.In addition, in dispersant prepared by comparative example
Add 2% alpha-olefin sodium sulfonate AOS as a comparison, evaluation result is as follows：
| Dispersant | Enter water state | Persistent foamability/mL | Suspensibility/% |
| Embodiment 1 | It is dispersed in cloud | 0 | 95.2 |
| Embodiment 2 | It is dispersed in cloud | 0 | 95.8 |
| Embodiment 3 | It is dispersed in cloud | 0 | 96.7 |
| Embodiment 4 | It is dispersed in cloud | 0 | 92.3 |
| Comparative example 1 | Wetting is poor, and bulk is sunk | 0 | 70.8 |
| Comparative example 2 | Wetting is poor, and bulk is sunk | 0 | 70.6 |
| Comparative example 3 | Wetting is poor, and bulk is sunk | 0 | 81.1 |
| Comparative example 4 | Wetting is poor, and bulk is sunk | 0 | 79.8 |
| Comparative example 1+AOS | Wetting is general, small block sinking | 50 | 71.5 |
| Comparative example 2+ AOS | Wetting is general, small block sinking | 50 | 72.1 |
| Comparative example 3+ AOS | Wetting is general, small block sinking | 50 | 82.1 |
| Comparative example 4+ AOS | Wetting is general, small block sinking | 50 | 80.3 |
It can be seen that, low bubble dispersant of the invention enables the uniform wetting and dispersing of preparation, and dispersion suspendability is good, with compared with
Good low bubble and antifoam performance.
（2）Application in 50% atrazine SC
Because the low bubble dispersant for synthesizing has wettability, wetting agent is added without in formula, evaluating formula is：97% green bristlegrass is gone
Tianjin TC 51.6%, dispersant 5%, urea 4%, xanthans 0.16%, water complements to 100%.In addition, the dispersion prepared in comparative example
2% OP-10 is added in agent as a comparison, evaluation result is as follows：
| Dispersant | Sand milling state | Enter water state | Persistent foamability/mL |
| Embodiment 1 | Still, material is dilute | It is dispersed in cloud | 0 |
| Embodiment 2 | Still, material is dilute | It is dispersed in cloud | 0 |
| Embodiment 3 | Still, material is dilute | It is dispersed in cloud | 0 |
| Embodiment 4 | Still, material is dilute | It is dispersed in cloud | 0 |
| Comparative example 1 | Livering | Wetting is poor, and bulk is sunk | 0 |
| Comparative example 2 | Livering | Wetting is poor, and bulk is sunk | 0 |
| Comparative example 3 | Livering | Wetting is poor, and bulk is sunk | 0 |
| Comparative example 4 | Livering | Wetting is poor, and bulk is sunk | 0 |
| Comparative example 1+OP-10 | Tiny bubble, livering | Wetting is general, small block sinking | 50 |
| Comparative example 2+ OP-10 | Tiny bubble, livering | Wetting is general, small block sinking | 50 |
| Comparative example 3+ OP-10 | Tiny bubble, livering | Wetting is general, small block sinking | 50 |
| Comparative example 4+ OP-10 | Tiny bubble, livering | Wetting is general, small block sinking | 50 |
It can be seen that, low bubble dispersant of the invention can be sanded normally, and material is dilute；With certain emulsifiability, enter water and nebulize
Dispersion, with preferable low bubble and antifoam performance.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art,
On the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications should also be regarded
It is protection scope of the present invention.
Claims (10)
1. a kind of low bubble dispersant, it is characterised in that：It is by the weight average molecular weight of monomer A, B and C copolymerization for 5000~
35000 polymer；
Monomer A is polyether modified silicon oil maleate, and as shown in I, m is 0~10 integer to structural formula, and n is 3~53 integer；
Monomer B be sodium vinyl sulfonate, acrylic sodium sulfonate, methylpropene sodium sulfonate, SSS, 2- acrylamides-
One or more in 2- methyl propane sulfonic acids；
Monomer C is the one kind in alkyl acrylate, alkyl methacrylate, styrene, methyl styrene, vinylacetate
Or it is two or more；
The mol ratio of wherein monomer A and monomer B is 0.1:1~1:1, monomer A are 1 with the mol ratio of monomer C:1~1:10；
Ⅰ。
2. low bubble dispersant according to claim 1, it is characterised in that：The molecular weight of monomer A is 500~3500.
3. low bubble dispersant according to claim 1, it is characterised in that：The preparation method of monomer A is：Equipped with toluene
In reactor, polyether modified silicon oil and maleic anhydride are added, after after all dissolvings, heated, stirring stops adding after terminating to reaction
Heat, removes toluene and residual maleic anhydride, cooling discharge.
4. low bubble dispersant according to claim 3, it is characterised in that：The mol ratio of polyether modified silicon oil and maleic anhydride
It is 1:1~1:2.
5. low bubble dispersant according to claim 4, it is characterised in that：The mol ratio of polyether modified silicon oil and maleic anhydride
It is 1:1.2.
6. low bubble dispersant according to claim 3, it is characterised in that：After after all dissolvings, stirred at 30 DEG C~60 DEG C
After mixing 3~10h of reaction, stop heating, remove toluene and residual maleic anhydride, cooling discharge.
7. the preparation method of the low bubble dispersant any one of claim 1 to 6, it is characterised in that：Comprise the following steps：
（1）In the reactor, the mol ratio is added to be converted into the monomer A and B of quality, lauryl sodium sulfate and water, 12
The quality of sodium alkyl sulfate is the 1.5%~4.0% of monomer A and B gross mass, is heated with stirring to 60~90 DEG C；
（2）It is converted into the monomer C of quality and is dissolved in water that to account for all monomers total to the mol ratio is added dropwise in reactor simultaneously
The initiator of quality 0.2%~3%, time for adding is 1~3h；
（3）After 3~6h of reaction, normal temperature is cooled to, it is 4~8 to adjust pH with alkali lye, and fluid product solid content is 25%~40%.
8. it is according to claim 7 it is low bubble dispersant preparation method, it is characterised in that：The initiator for it is water-soluble from
By base initiator.
9. it is according to claim 7 it is low bubble dispersant preparation method, it is characterised in that：Described alkali lye is NaOH
And/or potassium hydroxide aqueous solution.
10. low bubble dispersant according to claim 1, it is characterised in that：As application of dispersant in agricultural chemicals suspension agent, can
In WP and water dispersible granules.
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| CN108276437A (en) * | 2018-02-11 | 2018-07-13 | 邢台格默森化工科技有限公司 | A kind of low-foam wetting agents and preparation method thereof |
| CN108456308A (en) * | 2018-02-11 | 2018-08-28 | 邢台格默森化工科技有限公司 | Bleeding agent and preparation method thereof |
| CN108774298A (en) * | 2018-06-15 | 2018-11-09 | 刘书静 | Low bubble dispersant of one kind and preparation method thereof |
| CN109943140A (en) * | 2019-04-05 | 2019-06-28 | 扬州市立达树脂有限公司 | A kind of water paint dispersing agent of environment-friendly high-efficiency and preparation method thereof |
| CN112811843A (en) * | 2021-01-08 | 2021-05-18 | 江苏金木土科技有限公司 | Slurry-like high-dispersity silica-ash-based concrete admixture and preparation method thereof |
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| CN108276437A (en) * | 2018-02-11 | 2018-07-13 | 邢台格默森化工科技有限公司 | A kind of low-foam wetting agents and preparation method thereof |
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| CN112811843A (en) * | 2021-01-08 | 2021-05-18 | 江苏金木土科技有限公司 | Slurry-like high-dispersity silica-ash-based concrete admixture and preparation method thereof |
| CN113583505A (en) * | 2021-09-01 | 2021-11-02 | 西安纳瑞工控科技有限公司 | Low-foam paint dispersing wetting agent and preparation method thereof |
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