CN114258920A - Compound suspending agent containing terbutryn and s-metolachlor and preparation method thereof - Google Patents
Compound suspending agent containing terbutryn and s-metolachlor and preparation method thereof Download PDFInfo
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- CN114258920A CN114258920A CN202111647218.2A CN202111647218A CN114258920A CN 114258920 A CN114258920 A CN 114258920A CN 202111647218 A CN202111647218 A CN 202111647218A CN 114258920 A CN114258920 A CN 114258920A
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- suspending agent
- terbutryn
- metolachlor
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- 239000000375 suspending agent Substances 0.000 title claims abstract description 82
- IROINLKCQGIITA-UHFFFAOYSA-N terbutryn Chemical compound CCNC1=NC(NC(C)(C)C)=NC(SC)=N1 IROINLKCQGIITA-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 150000001875 compounds Chemical class 0.000 title claims abstract description 30
- WVQBLGZPHOPPFO-LBPRGKRZSA-N (S)-metolachlor Chemical compound CCC1=CC=CC(C)=C1N([C@@H](C)COC)C(=O)CCl WVQBLGZPHOPPFO-LBPRGKRZSA-N 0.000 title claims abstract description 28
- 239000005617 S-Metolachlor Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003921 oil Substances 0.000 claims abstract description 28
- MXWJVTOOROXGIU-UHFFFAOYSA-N atrazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)C)=N1 MXWJVTOOROXGIU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000003755 preservative agent Substances 0.000 claims abstract description 12
- 230000002335 preservative effect Effects 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 8
- 239000004548 suspo-emulsion Substances 0.000 claims abstract description 6
- 239000008096 xylene Substances 0.000 claims abstract description 6
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 4
- 239000000706 filtrate Substances 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 15
- 239000000230 xanthan gum Substances 0.000 claims description 14
- 229920001285 xanthan gum Polymers 0.000 claims description 14
- 229940082509 xanthan gum Drugs 0.000 claims description 14
- 235000010493 xanthan gum Nutrition 0.000 claims description 14
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 29
- 239000000575 pesticide Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 34
- 230000000052 comparative effect Effects 0.000 description 17
- 230000002363 herbicidal effect Effects 0.000 description 14
- 240000008042 Zea mays Species 0.000 description 11
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 11
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 11
- 235000005822 corn Nutrition 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 239000008346 aqueous phase Substances 0.000 description 9
- 239000011324 bead Substances 0.000 description 9
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical group [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 description 9
- WVQBLGZPHOPPFO-UHFFFAOYSA-N 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(1-methoxypropan-2-yl)acetamide Chemical compound CCC1=CC=CC(C)=C1N(C(C)COC)C(=O)CCl WVQBLGZPHOPPFO-UHFFFAOYSA-N 0.000 description 8
- 239000004009 herbicide Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000009333 weeding Methods 0.000 description 5
- 230000002688 persistence Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000004546 suspension concentrate Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000005621 Terbuthylazine Substances 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- IYRMWMYZSQPJKC-UHFFFAOYSA-N kaempferol Chemical compound C1=CC(O)=CC=C1C1=C(O)C(=O)C2=C(O)C=C(O)C=C2O1 IYRMWMYZSQPJKC-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- FZXISNSWEXTPMF-UHFFFAOYSA-N terbutylazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)(C)C)=N1 FZXISNSWEXTPMF-UHFFFAOYSA-N 0.000 description 2
- VPSXHKGJZJCWLV-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(1-ethylpiperidin-4-yl)oxypyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)OC1CCN(CC1)CC VPSXHKGJZJCWLV-UHFFFAOYSA-N 0.000 description 1
- KNDAEDDIIQYRHY-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(piperazin-1-ylmethyl)pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)CN1CCNCC1 KNDAEDDIIQYRHY-UHFFFAOYSA-N 0.000 description 1
- AWFYPPSBLUWMFQ-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(1,4,6,7-tetrahydropyrazolo[4,3-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)NN=C2 AWFYPPSBLUWMFQ-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- UBSCDKPKWHYZNX-UHFFFAOYSA-N Demethoxycapillarisin Natural products C1=CC(O)=CC=C1OC1=CC(=O)C2=C(O)C=C(O)C=C2O1 UBSCDKPKWHYZNX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-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
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004062 cytokinin Substances 0.000 description 1
- UQHKFADEQIVWID-UHFFFAOYSA-N cytokinin Natural products C1=NC=2C(NCC=C(CO)C)=NC=NC=2N1C1CC(O)C(CO)O1 UQHKFADEQIVWID-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- MWDZOUNAPSSOEL-UHFFFAOYSA-N kaempferol Natural products OC1=C(C(=O)c2cc(O)cc(O)c2O1)c3ccc(O)cc3 MWDZOUNAPSSOEL-UHFFFAOYSA-N 0.000 description 1
- 235000008777 kaempferol Nutrition 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UXOUKMQIEVGVLY-UHFFFAOYSA-N morin Natural products OC1=CC(O)=CC(C2=C(C(=O)C3=C(O)C=C(O)C=C3O2)O)=C1 UXOUKMQIEVGVLY-UHFFFAOYSA-N 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application relates to the technical field of pesticide preparations, and particularly discloses a compound suspending agent containing terbutryn and s-metolachlor and a preparation method thereof. The compound suspending agent is formed by mixing a water phase and an oil phase, wherein the water phase comprises the following components in parts by weight: 110-130 parts of water, 20-30 parts of terbutryn and 10-20 parts of atrazine; the oil phase comprises the following components in parts by weight: 10-15 parts of water and 60-70 parts of s-metolachlor; the weed control effect of the suspending agent is improved. A preparation method of a compound suspending agent containing terbutryn and s-metolachlor comprises the following steps: mixing water, terbutryn, atrazine, an emulsifier, an antifreezing agent, a thickening agent, a preservative and a defoaming agent, and sanding to obtain a water phase; mixing water, s-metolachlor, xylene and suspoemulsion SE40 to obtain an oil phase; and mixing the water phase and the oil phase, and emulsifying to obtain the compound suspending agent.
Description
Technical Field
The application relates to the technical field of pesticide preparations, in particular to a compound suspending agent containing terbutryn and s-metolachlor and a preparation method thereof.
Background
The weeds in the corn field are various, the quantity is large, the range is wide, the weeds are difficult to pull out, and rotation is difficult due to land circulation and large scale production and planting area, so the corn field herbicide is a main means for weeding in the corn field.
The common corn field herbicide is divided into two types of pre-seedling treatment and post-seedling stem and leaf treatment, wherein the pre-seedling treatment type herbicide has less harm to crops, so that the application is more, but the lasting effect is shorter, so that the weed control effect is influenced.
Disclosure of Invention
In order to improve the weed control effect, the application provides a compound suspending agent containing terbutryn and s-metolachlor and a preparation method thereof.
In a first aspect, the composite suspending agent containing terbutryn and s-metolachlor provided by the application adopts the following technical scheme:
the compound suspending agent is formed by mixing a water phase and an oil phase, wherein the water phase comprises the following components in parts by weight: 110-130 parts of water, 20-30 parts of terbutryn and 10-20 parts of atrazine; the oil phase comprises the following components in parts by weight: 10-15 parts of water and 60-70 parts of s-metolachlor.
By adopting the technical scheme, the terbutryn and the metolachlor are compounded for use, so that the weed control effect of the suspending agent is improved; the atrazine has a certain inhibition effect on weeds, and can be deeply buried in soil, so that the persistence of the suspending agent is prolonged, the weed control effect of the suspending agent is further improved, and the atrazine has good selectivity on corn and reduces the influence on corn crop lands.
In a specific embodiment, the weight ratio of the oil phase to the water phase is 1 (1-1.5).
By adopting the technical scheme, the proportion of the oil phase and the water phase is further optimized, and the weed control effect of the suspending agent is improved.
In a specific possible embodiment, the aqueous phase further comprises 2 to 6 parts by weight of an emulsifier, 4 to 8 parts by weight of an antifreeze, 0.8 to 1.4 parts by weight of a thickener, 0.5 to 1 part by weight of a preservative, and 0.1 to 0.3 part by weight of a defoamer.
In a particular embodiment, the thickener is a mixture of xanthan gum and magnesium aluminum silicate.
By adopting the technical scheme, the xanthan gum and the magnesium aluminum silicate have a good thickening effect, so that the suspending agent is kept in a stable suspension state; in addition, the magnesium aluminum silicate has a unique three-dimensional chain structure, an excellent carrier is provided for terbutryn, atrazine and metolachlor, and after the suspending agent is used, the xanthan gum can form a layer of glue film, so that the active ingredients in the suspending agent have certain slow release and protection effects, the persistence of the suspending agent is further improved, and the weed control effect of the suspending agent is further improved.
In a specific possible embodiment, the weight ratio of the xanthan gum to the magnesium aluminum silicate is 1 (9-11).
By adopting the technical scheme, the proportion of xanthan gum and magnesium aluminum silicate is further optimized, and the weed control effect of the suspending agent is improved.
In a specific possible embodiment, the oil phase further comprises 5 to 10 parts by weight of xylene and 5 to 20 parts by weight of suspoemulsion SE 4015.
In a second aspect, the application provides a preparation method of a compound suspending agent containing terbutryn and s-metolachlor, which adopts the following technical scheme:
a preparation method of a compound suspending agent containing terbutryn and s-metolachlor comprises the following steps:
uniformly mixing water, terbutryn, atrazine, an emulsifier, an antifreezing agent, a thickening agent, a preservative and a defoaming agent, sanding and filtering to obtain a filtrate A, wherein the filtrate A is a water phase;
uniformly mixing water, s-metolachlor, xylene and suspoemulsion SE40 to obtain an oil phase;
and uniformly mixing the water phase and the oil phase, and shearing and emulsifying for 5-10 min to obtain the compound suspending agent.
By adopting the technical scheme, the terbutryn and the atrazine are sanded to prepare a water phase, and then the water phase is mixed with an oil phase prepared from the metolachlor, and the mixture is sheared and emulsified to obtain the compound suspending agent with good weed control effect.
In a specific possible embodiment, water, terbutryn, atrazine, an emulsifier, an antifreezing agent, a thickening agent, a preservative and a defoaming agent are uniformly mixed, then sanding and filtering are carried out to obtain filtrate A, sanding and filtering are carried out to obtain filtrate B, and the filtrate B is an aqueous phase.
By adopting the technical scheme, the filtrate A is sanded again, so that the suspension property of the suspending agent can be improved, and the weed control effect of the suspending agent is improved.
In a specific possible embodiment, the temperature of the two sanding processes is 30-40 ℃.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the application, the terbutryn and the metolachlor are compounded for use, so that the weed control effect of the suspending agent is improved; the atrazine has a certain inhibition effect on weeds, and can be deeply buried in soil, so that the persistence of the suspending agent is prolonged, the weed control effect of the suspending agent is improved, and the atrazine has better selectivity on corn and reduces the influence on corn crop lands;
2. the magnesium aluminum silicate has a unique three-dimensional chain structure, provides an excellent carrier for terbutryn, atrazine and metolachlor, and after the suspending agent is used, xanthan gum can form a layer of glue film, so that the active ingredients in the suspending agent have certain slow release and protection effects, the persistence of the suspending agent is further improved, and the weed control effect of the suspending agent is further improved;
3. according to the method, the filtrate A is sanded again, so that the suspension property of the suspending agent can be improved, and the weed control effect of the suspending agent is improved.
Detailed Description
The present application will be described in further detail with reference to examples.
All the starting materials in the examples are commercially available. Wherein the emulsifier is preferably calcium dodecylbenzene sulfonate; the antifreezing agent is preferably glycol; the preservative is preferably a cason preservative; the defoaming agent is preferably an organic silicon defoaming agent, and the CAS number is 9003-05-8.
Examples
Examples 1 to 13
As shown in tables 1 and 2, examples 1 to 13 are different in the ratio of raw materials.
Example 1
A compound suspending agent containing terbutryn and s-metolachlor is prepared by the following method:
adding 120g of water, 20g of terbutryn, 10g of atrazine, 4g of calcium dodecyl benzene sulfonate, 5g of ethylene glycol, 0.1g of xanthan gum, 0.7g of magnesium aluminum silicate, 0.6 g of cason preservative and 0.2g of organic silicon defoaming agent into a stirring tank, stirring and mixing uniformly to obtain a mixture A, adding the mixture A into a sanding tank at normal temperature, adding pickaxe beads with the weight being twice that of the mixture A into the sanding tank, sanding for 30min, and filtering to obtain a filtrate A, wherein the filtrate A is a water phase;
adding 10g of water, 60g of s-metolachlor, 6g of xylene and 17g of suspoemulsion SE40 into a stirring tank, and uniformly stirring and mixing to obtain an oil phase;
and (3) uniformly mixing 40g of water phase and 50g of oil phase, adding into a high-speed shearing homogenizer, and shearing and emulsifying for 8min to obtain the compound suspending agent.
TABLE 1 amount of aqueous phase raw material
| Sample (I) | Water (g) | Terbuthylazine (g) | Atrazine (g) | Calcium dodecyl benzene sulfonate (g) | Ethylene glycol (g) | Xanthan gum (A)g） | Magnesium aluminium silicate (g) | Kasong preservative (g) | Silicone antifoam agent (g) |
| Example 1 | 120 | 20 | 10 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 2 | 120 | 25 | 10 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 3 | 120 | 30 | 10 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 4 | 120 | 25 | 15 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 5 | 120 | 25 | 20 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 6 | 120 | 25 | 15 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 7 | 120 | 25 | 15 | 4 | 5 | 0.1 | 0.7 | 0.6 | 0.2 |
| Example 8 | 120 | 25 | 15 | 4 | 5 | 0.1 | 0.9 | 0.6 | 0.2 |
| Example 9 | 120 | 25 | 15 | 4 | 5 | 0.1 | 1 | 0.6 | 0.2 |
| Example 10 | 120 | 25 | 15 | 4 | 5 | 0.1 | 1.1 | 0.6 | 0.2 |
| Example 11 | 120 | 25 | 15 | 4 | 5 | 0.1 | 1.3 | 0.6 | 0.2 |
| Example 12 | 120 | 25 | 15 | 4 | 5 | 1.1 | 0 | 0.6 | 0.2 |
| Example 13 | 120 | 25 | 15 | 4 | 5 | 0 | 1.1 | 0.6 | 0.2 |
TABLE 2 amount of oil phase raw materials
| Sample (I) | Water (g) | S-metolachlor (g) | Xylene (g) | Suspoemulsion SE40 (g) |
| Example 1 | 10 | 60 | 6 | 17 |
| Example 2 | 10 | 60 | 6 | 17 |
| Example 3 | 10 | 60 | 6 | 17 |
| Example 4 | 10 | 60 | 6 | 17 |
| Example 5 | 10 | 60 | 6 | 17 |
| Example 6 | 10 | 65 | 6 | 17 |
| Example 7 | 10 | 70 | 6 | 17 |
| Example 8 | 10 | 65 | 6 | 17 |
| Example 9 | 10 | 65 | 6 | 17 |
| Example 10 | 10 | 65 | 6 | 17 |
| Example 11 | 10 | 65 | 6 | 17 |
| Example 12 | 10 | 65 | 6 | 17 |
| Example 13 | 10 | 65 | 6 | 17 |
Examples 14 to 17
As shown in Table 3, examples 14 to 17 are different from example 9 in the ratio of the water phase to the oil phase.
TABLE 3 amounts of aqueous and oil phases
| Sample (I) | Oil phase (g) | Aqueous phase (g) |
| Example 14 | 50 | 50 |
| Example 15 | 50 | 60 |
| Example 16 | 50 | 75 |
| Example 17 | 50 | 90 |
Example 18
Example 18 differs from example 15 in that the mixture a was added to a sanding tank at normal temperature, and pickaxe beads twice the weight of the mixture a were added to the sanding tank, sanded for 30min, and filtered to obtain filtrate a; at normal temperature, adding the filtrate A into the sanding tank again, adding pickaxe beads with the weight twice that of the filtrate A into the sanding tank, sanding for 30min, and filtering to obtain filtrate B, wherein the filtrate B is a water phase.
Example 19
Example 19 differs from example 18 in that mixture a was added to a sanding tank at a temperature of 30 ℃, pickaxe beads twice the weight of mixture a were added to the sanding tank, sanded for 30min, and filtered to give filtrate a; and (3) adding the filtrate A into the sanding tank again at the temperature of 30 ℃, adding pickaxe beads with the weight twice that of the filtrate A into the sanding tank, sanding for 30min, and filtering to obtain filtrate B, wherein the filtrate B is a water phase.
Example 20
Example 20 differs from example 18 in that mixture a was added to a sanding tank at a temperature of 35 ℃, pickaxe beads twice the weight of mixture a were added to the sanding tank, sanded for 30min, and filtered to give filtrate a; and (3) adding the filtrate A into the sanding tank again at the temperature of 35 ℃, adding pickaxe beads with the weight twice that of the filtrate A into the sanding tank, sanding for 30min, and filtering to obtain filtrate B, wherein the filtrate B is a water phase.
Example 21
Example 21 differs from example 18 in that mixture a was added to a sanding tank at a temperature of 40 ℃, pickaxe beads twice the weight of mixture a were added to the sanding tank, sanded for 30min, and filtered to give filtrate a; and at the temperature of 40 ℃, adding the filtrate A into the sanding tank again, adding pickaxe beads with the weight twice that of the filtrate A into the sanding tank, sanding for 30min, and filtering to obtain filtrate B, wherein the filtrate B is a water phase.
Comparative example
Comparative example 1
The difference between the comparative example 1 and the example 1 is that the terbutryn suspending agent is selected as the compound suspending agent.
Comparative example 2
The difference between the comparative example 2 and the example 1 is that the metolachlor missible oil is selected as the compound suspending agent.
Comparative example 3
Comparative example 3 differs from example 1 in that 120g of water, 30g of terbutryn, 4g of calcium dodecylbenzenesulfonate, 5g of ethylene glycol, 0.1g of xanthan gum, 0.7g of magnesium aluminum silicate, 0.6 g of kaempferol preservative and 0.2g of silicone defoamer were added to a stirring tank and stirred and mixed uniformly to obtain a mixture a; the remaining steps were in accordance with example 1.
Performance test
Weed control effect: adding the compound suspending agent in each embodiment and comparative example into water to prepare herbicide with consistent effective components, and then spraying the same amount of herbicide on a corn field; the weeding rate = (A-B)/A, wherein A is the number of weeds in the corn field before treatment, B is the number of weeds in the corn field after 20 days of treatment, and the higher the weeding rate is, the better the weed control effect is.
Table 4 table of performance test results
| Sample (I) | Percentage of weed removed (%) |
| Example 1 | 90.21 |
| Example 2 | 92.13 |
| Example 3 | 91.31 |
| Example 4 | 92.96 |
| Example 5 | 92.42 |
| Example 6 | 93.45 |
| Example 7 | 93.12 |
| Example 8 | 94.56 |
| Example 9 | 95.25 |
| Example 10 | 95.01 |
| Example 11 | 94.67 |
| Example 12 | 94.11 |
| Example 13 | 93.98 |
| Example 14 | 96.17 |
| Example 15 | 96.88 |
| Example 16 | 96.53 |
| Example 17 | 96.04 |
| Example 18 | 97.55 |
| Example 19 | 98.01 |
| Example 20 | 98.89 |
| Example 21 | 98.56 |
| Comparative example 1 | 74.69 |
| Comparative example 2 | 78.67 |
| Comparative example 3 | 88.53 |
By combining the suspending agent in the embodiment 1, the comparative example 1 and the comparative example 2, the weeding rate of the suspending agent in the comparative example 1 and the comparative example 2 is far lower than that of the embodiment 1, so that the weed control effect of the suspending agent in the embodiment 1 is better; therefore, the terbutryn belongs to a photosynthesis inhibitor, the metolachlor belongs to a cytokinin inhibitor, and the terbutryn and the metolachlor are compounded for use, so that the weed removal effect can be improved.
By combining the example 1 and the comparative example 3, the weeding rate of the suspending agent in the example 1 is higher than that of the comparative example 3, and the atrazine added into the suspending agent can be deeply buried in soil, so that the lasting effect of the suspending agent is prolonged, and the weed control effect of the suspending agent is improved.
With reference to examples 1 to 3, the herbicidal rate of the suspending agent in example 2 was the highest, and it can be seen that when the aqueous phase was prepared, the amount of terbuthylazine used was increased, and the herbicidal rate of the prepared suspending agent tended to increase first and then decrease.
Combining example 2, example 4 and example 5, the herbicidal rate of the suspending agent in example 4 was the highest, and it can be seen that when the aqueous phase was prepared, the amount of atrazine used was increased, and the herbicidal rate of the prepared suspending agent tended to increase first and then decrease.
Combining example 4, example 6 and example 7, the herbicidal rate of the suspending agent in example 6 was the highest, and it can be seen that when the amount of s-metolachlor used was increased during the preparation of the oil phase, the herbicidal rate of the prepared suspending agent tended to increase first and then decrease.
By combining the embodiment 6 and the embodiments 8-11, the weed control rate of the suspending agent in the embodiment 9 is the highest, so that the proportioning of the thickening agent in the embodiment 9 is the best when the aqueous phase is prepared, and when the weight ratio of the xanthan gum to the magnesium aluminum silicate is 1 (9-11), the weed control rate of the prepared suspending agent is higher.
By combining the embodiments 9, 12 and 13, the herbicidal rate of the suspending agent in the embodiments 12 and 13 is lower than that in the embodiment 9, and it can be seen that the thickening agent is selected from xanthan gum and magnesium aluminum silicate for use, the magnesium aluminum silicate has a unique three-dimensional chain structure, so that an excellent carrier is provided for the effective herbicidal components in the suspending agent, and after the suspending agent is used, the xanthan gum forms a layer of glue film, so that the effective components in the suspending agent have certain slow release and protection effects, and therefore, the lasting effect of the suspending agent is further improved, and the weed control effect of the suspending agent is further improved.
The suspending agent in the embodiment 15 has the highest weed control rate by combining the embodiment 9 and the embodiments 14-17, so that the ratio of the water phase to the oil phase in the embodiment 9 is optimal when the suspending agent is prepared, and the weed control effect of the prepared suspending agent is better when the weight ratio of the oil phase to the water phase is 1 (1-1.5).
Combining example 15 and example 18, the herbicidal efficacy of the suspension concentrate of example 18 was greater than that of example 15, and it can be seen that when preparing the aqueous phase, two sanding operations were performed to improve the suspensibility of the suspension concentrate prepared, thereby improving the weed control effect of the suspension concentrate prepared.
In combination with examples 18 to 21, the weed control rate of the suspending agent in example 20 was the highest, and it can be seen that the temperature of sanding was increased during the preparation of the aqueous phase, and the weed control rate of the prepared suspending agent showed a tendency of increasing first and then decreasing.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. A compound suspending agent containing terbutryn and s-metolachlor is characterized in that: the composite suspending agent is formed by mixing a water phase and an oil phase, wherein the water phase comprises the following components in parts by weight: 110-130 parts of water, 20-30 parts of terbutryn and 10-20 parts of atrazine; the oil phase comprises the following components in parts by weight: 10-15 parts of water and 60-70 parts of s-metolachlor.
2. The compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 1, wherein: the weight ratio of the oil phase to the water phase is 1 (1-1.5).
3. The compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 1, wherein: the water phase also comprises 2-6 parts by weight of an emulsifier, 4-8 parts by weight of an antifreezing agent, 0.8-1.4 parts by weight of a thickening agent, 0.5-1 part by weight of a preservative and 0.1-0.3 part by weight of a defoaming agent.
4. The compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 3, wherein: the thickening agent is a mixture of xanthan gum and magnesium aluminum silicate.
5. The compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 4, wherein: the weight ratio of the xanthan gum to the magnesium aluminum silicate is 1 (9-11).
6. The compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 1, wherein: the oil phase also comprises 5-10 parts by weight of dimethylbenzene and 5-20 parts by weight of suspending agent SE 4015.
7. A preparation method of a compound suspending agent containing terbutryn and s-metolachlor is characterized by comprising the following steps: the method comprises the following steps:
uniformly mixing water, terbutryn, atrazine, an emulsifier, an antifreezing agent, a thickening agent, a preservative and a defoaming agent, sanding and filtering to obtain a filtrate A, wherein the filtrate A is a water phase;
uniformly mixing water, s-metolachlor, xylene and suspoemulsion SE40 to obtain an oil phase;
and uniformly mixing the water phase and the oil phase, and shearing and emulsifying for 5-10 min to obtain the compound suspending agent.
8. The preparation method of the compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 7, wherein the compound suspending agent comprises the following components: uniformly mixing water, terbutryn, atrazine, an emulsifier, an antifreezing agent, a thickening agent, a preservative and a defoaming agent, sanding and filtering to obtain a filtrate A, sanding and filtering the filtrate A to obtain a filtrate B, wherein the filtrate B is a water phase.
9. The preparation method of the compound suspending agent containing terbutryn and s-metolachlor as claimed in claim 8, wherein the compound suspending agent comprises the following components: and the sanding temperature is 30-40 ℃.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107711837A (en) * | 2017-10-11 | 2018-02-23 | 浙江中山化工集团股份有限公司 | A kind of complex weedicide containing S-metolachlor and preparation method thereof |
| CN109497055A (en) * | 2018-11-29 | 2019-03-22 | 北京明德立达农业科技有限公司 | A kind of microcapsule suspension-suspendinagent agent and preparation method thereof containing Atrazine and S-metolachlor |
| CN110250176A (en) * | 2019-06-17 | 2019-09-20 | 上海明德立达生物科技有限公司 | A kind of Garagard and the microcapsule suspension-suspendinagent agent of S-metolachlor and its preparation method and application |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107711837A (en) * | 2017-10-11 | 2018-02-23 | 浙江中山化工集团股份有限公司 | A kind of complex weedicide containing S-metolachlor and preparation method thereof |
| CN109497055A (en) * | 2018-11-29 | 2019-03-22 | 北京明德立达农业科技有限公司 | A kind of microcapsule suspension-suspendinagent agent and preparation method thereof containing Atrazine and S-metolachlor |
| CN110250176A (en) * | 2019-06-17 | 2019-09-20 | 上海明德立达生物科技有限公司 | A kind of Garagard and the microcapsule suspension-suspendinagent agent of S-metolachlor and its preparation method and application |
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Application publication date: 20220401 |