CN117814220A - Pesticide dispersible oil suspending agent and preparation method and application thereof - Google Patents
Pesticide dispersible oil suspending agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN117814220A CN117814220A CN202311846438.7A CN202311846438A CN117814220A CN 117814220 A CN117814220 A CN 117814220A CN 202311846438 A CN202311846438 A CN 202311846438A CN 117814220 A CN117814220 A CN 117814220A
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- China
- Prior art keywords
- percent
- agent
- optionally
- polyoxyethylene ether
- dispersible oil
- Prior art date
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- 239000000575 pesticide Substances 0.000 title claims abstract description 28
- 239000000375 suspending agent Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 42
- 239000003381 stabilizer Substances 0.000 claims abstract description 40
- IYMLUHWAJFXAQP-UHFFFAOYSA-N topramezone Chemical compound CC1=C(C(=O)C2=C(N(C)N=C2)O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 IYMLUHWAJFXAQP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 36
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 36
- MXWJVTOOROXGIU-UHFFFAOYSA-N atrazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)C)=N1 MXWJVTOOROXGIU-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 30
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 26
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 19
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical compound [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 claims abstract description 15
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 12
- 229920002635 polyurethane Polymers 0.000 claims abstract description 12
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 12
- 229920001400 block copolymer Polymers 0.000 claims abstract description 11
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims abstract description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004359 castor oil Substances 0.000 claims abstract description 5
- 235000019438 castor oil Nutrition 0.000 claims abstract description 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 5
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 5
- 239000011591 potassium Substances 0.000 claims abstract description 5
- 239000001593 sorbitan monooleate Substances 0.000 claims abstract description 5
- 229940035049 sorbitan monooleate Drugs 0.000 claims abstract description 5
- 235000011069 sorbitan monooleate Nutrition 0.000 claims abstract description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005642 Oleic acid Substances 0.000 claims abstract description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920005682 EO-PO block copolymer Polymers 0.000 claims abstract description 3
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 3
- 239000010452 phosphate Substances 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract 2
- -1 alkali metal bicarbonate Chemical class 0.000 claims description 35
- 241000196324 Embryophyta Species 0.000 claims description 30
- 239000012053 oil suspension Substances 0.000 claims description 28
- 235000019198 oils Nutrition 0.000 claims description 27
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 20
- 240000008042 Zea mays Species 0.000 claims description 18
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 18
- 235000005822 corn Nutrition 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 claims description 14
- 239000002609 medium Substances 0.000 claims description 14
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 claims description 14
- 229940073769 methyl oleate Drugs 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 12
- 229910000278 bentonite Inorganic materials 0.000 claims description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 12
- 239000006229 carbon black Substances 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 8
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 claims description 8
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 239000002612 dispersion medium Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 6
- 244000025670 Eleusine indica Species 0.000 claims description 5
- 235000014716 Eleusine indica Nutrition 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 4
- 150000004702 methyl esters Chemical class 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 239000003755 preservative agent Substances 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 241000448435 Acalypha australis Species 0.000 claims description 3
- 240000006162 Chenopodium quinoa Species 0.000 claims description 3
- 235000001602 Digitaria X umfolozi Nutrition 0.000 claims description 3
- 235000017898 Digitaria ciliaris Nutrition 0.000 claims description 3
- 235000005476 Digitaria cruciata Nutrition 0.000 claims description 3
- 235000006830 Digitaria didactyla Nutrition 0.000 claims description 3
- 235000005804 Digitaria eriantha ssp. eriantha Nutrition 0.000 claims description 3
- 235000010823 Digitaria sanguinalis Nutrition 0.000 claims description 3
- 244000058871 Echinochloa crus-galli Species 0.000 claims description 3
- 235000010086 Setaria viridis var. viridis Nutrition 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 230000000361 pesticidal effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 3
- 239000008158 vegetable oil Substances 0.000 claims description 3
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 claims description 2
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 2
- 240000001592 Amaranthus caudatus Species 0.000 claims description 2
- 235000009328 Amaranthus caudatus Nutrition 0.000 claims description 2
- 244000036975 Ambrosia artemisiifolia Species 0.000 claims description 2
- 235000003129 Ambrosia artemisiifolia var elatior Nutrition 0.000 claims description 2
- 235000007320 Avena fatua Nutrition 0.000 claims description 2
- 241001647031 Avena sterilis Species 0.000 claims description 2
- 235000004535 Avena sterilis Nutrition 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 241000207894 Convolvulus arvensis Species 0.000 claims description 2
- 241001101998 Galium Species 0.000 claims description 2
- 235000014820 Galium aparine Nutrition 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 2
- 244000234609 Portulaca oleracea Species 0.000 claims description 2
- 235000001855 Portulaca oleracea Nutrition 0.000 claims description 2
- 239000004111 Potassium silicate Substances 0.000 claims description 2
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000002594 Solanum nigrum Nutrition 0.000 claims description 2
- 240000002307 Solanum ptychanthum Species 0.000 claims description 2
- 241000381602 Vachellia nebrownii Species 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 2
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 2
- 235000003484 annual ragweed Nutrition 0.000 claims description 2
- 235000006263 bur ragweed Nutrition 0.000 claims description 2
- 235000003488 common ragweed Nutrition 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims description 2
- 229920002866 paraformaldehyde Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 235000011181 potassium carbonates Nutrition 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- 235000011118 potassium hydroxide Nutrition 0.000 claims description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000004302 potassium sorbate Substances 0.000 claims description 2
- 229940069338 potassium sorbate Drugs 0.000 claims description 2
- 235000010241 potassium sorbate Nutrition 0.000 claims description 2
- 230000002335 preservative effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 235000009736 ragweed Nutrition 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 235000019794 sodium silicate Nutrition 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 2
- 150000007514 bases Chemical group 0.000 claims 1
- 244000230342 green foxtail Species 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 7
- 239000000047 product Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 13
- 238000011282 treatment Methods 0.000 description 12
- 238000003860 storage Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 230000002363 herbicidal effect Effects 0.000 description 8
- 239000004009 herbicide Substances 0.000 description 8
- 238000012216 screening Methods 0.000 description 8
- 239000003814 drug Substances 0.000 description 7
- 230000007774 longterm Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 231100000674 Phytotoxicity Toxicity 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 238000009333 weeding Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000004480 active ingredient Substances 0.000 description 4
- 239000002552 dosage form Substances 0.000 description 4
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- 238000006731 degradation reaction Methods 0.000 description 3
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- 239000004495 emulsifiable concentrate Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 241000482268 Zea mays subsp. mays Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 206010001557 Albinism Diseases 0.000 description 1
- 244000237956 Amaranthus retroflexus Species 0.000 description 1
- 235000013479 Amaranthus retroflexus Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000015493 Chenopodium quinoa Nutrition 0.000 description 1
- 102000016680 Dioxygenases Human genes 0.000 description 1
- 108010028143 Dioxygenases Proteins 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
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- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
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- 231100000252 nontoxic Toxicity 0.000 description 1
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- 239000012466 permeate Substances 0.000 description 1
- 230000004526 pharmaceutical effect Effects 0.000 description 1
- QIIPQYDSKRYMFG-UHFFFAOYSA-N phenyl hydrogen carbonate Chemical compound OC(=O)OC1=CC=CC=C1 QIIPQYDSKRYMFG-UHFFFAOYSA-N 0.000 description 1
- 210000002706 plastid Anatomy 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical compound O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses a dispersible oil suspending agent, a preparation method and application thereof, and relates to the field of pesticides, wherein the dispersible oil suspending agent comprises the following raw materials in percentage by weight: 5 to 35 percent of atrazine, 5 to 30 percent of dimethyltetracloisonne, 1 to 10 percent of topramezone, 1 to 5 percent of dispersing agent, 5 to 20 percent of emulsifying agent, 1 to 5 percent of rheological agent, 0.1 to 5 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 15 to 65 percent of dispersing medium; the dispersing agent comprises at least one of EO/PO block copolymer, phosphate, polyurethane type block copolymer and sulfonate type macromolecular dispersing agent; the emulsifier comprises at least one of castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether, potassium sorbitan monooleate polyoxyethylene ether and calcium dodecyl benzene sulfonate; the stabilizer is an alkaline compound. The invention solves the problems of poor stability and high cost of the dispersible oil suspending agent.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a pesticide dispersible oil suspending agent, a preparation method of the pesticide dispersible oil suspending agent, a use method of the pesticide dispersible oil suspending agent and application of the pesticide dispersible oil suspending agent and the pesticide dispersible oil suspending agent in controlling plant insect pests in farmlands.
Background
Atrazine is a systemic selective pre-seedling and post-seedling closed herbicide, the root absorption is dominant, the stem and leaf absorption is little, and the atrazine is rapidly transmitted to plant meristems and leaves to interfere photosynthesis, so that weeds are killed. In resistant crops such as corn, the corn ketolase is decomposed to generate nontoxic substances, so that the corn ketolase is safe to crops;
the dimethyl isooctyl chloride is a selective activator phenoxy carboxylic acid herbicide and has stronger absorption conductivity. The preparation is mainly used for post-emergence stem and leaf treatment, passes through the stratum corneum and cell membranes and finally is conducted to all parts. The action mode is selectively the same as that of 2, 4-D. But the volatility and the action speed of the composition are lower than those of 2, 4-butyl ester emulsifiable concentrate, so that the composition is safer to use than 2, 4-butyl ester emulsifiable concentrate in rice areas in cold regions.
Topramezone is a benzyl ester pyrazolone herbicide, post-emergence stem and leaf treatment is absorbed by roots, seedlings and leaves, is conducted to meristems in a plant to the top and the base, inhibits p-hydroxyphenylpyruvate dioxygenase (4-HPPD), inhibits biosynthesis of carotenoid by plastid quinone and indirectly, has chloroplast synthesis and function disturbance, causes albinism of germinated sensitive weeds due to oxidative degradation of chlorophyll, accompanies growth inhibition, causes tissue necrosis of which the damage symptom is similar to chlorosis under photosynthesis, bleaches the sensitive target weeds within 2-5 days after treatment, and dies plants within 14 days.
Herbicide varieties of a single active ingredient often suffer from varying degrees of deficiencies in agricultural pest control, including but not limited to: the weeding spectrum is narrow, drug resistance is easy to generate after continuous use, and environmental pollution can be aggravated after the use times are more. The active ingredients with different action mechanisms can be compounded to effectively overcome the defects. Meanwhile, the synergistic effect generated by mixing different active components can improve the control effect, expand the weeding spectrum, delay the generation of weed drug resistance and reduce the environmental pollution, thus being an important means for comprehensively preventing and controlling weeds. However, after different effective components are compounded, the product is unstable and even reacts with each other to decompose the effective components because of the physicochemical properties of the effective components such as melting point, solubility, pH value and the like, so that the compounding of the product is required to be optimized and the formula is required to be reasonably matched; the stability of the product can be maintained, and the product has the advantages of high drug effect and the like.
The development of the dispersible oil suspending agent starts from the later 70 s and gradually progresses to the 80 s. Because of the differences in the effectiveness of water-based, granulated products, particularly pharmaceutical effects, in many cases compared to emulsifiable concentrates, dispersible oil suspensions are a desirable option in some cases. The dispersible oil suspending agent can improve the capability of the liquid medicine to permeate the waxy layer and the cuticle of the leaf surface through the use of an oil dispersion medium and the addition of an oil-based system auxiliary agent, so that the liquid medicine can enter the tissue in the leaf more smoothly, and meanwhile, the oil-based system is beneficial to improving the deposition capability, the rainwater washing resistance and the transpiration resistance of the medicament, and the effects can promote the efficacy to play and play an obvious synergistic effect. Despite the above advantages of preparing dispersible oil suspensions, developing a stable, efficient, high content dispersible oil suspension product remains a challenge for formulation engineers. High levels of dispersible oil suspending agent products tend to suffer from high formulation viscosity, poor dispersion, easy settling and bottoming.
But the topramezone is easy to degrade when being prepared into a dispersible oil suspending agent, and is difficult to obtain the dispersible oil suspending agent with good thermal storage stability at 54 ℃ due to the adjustment and change of auxiliary agents when being used together with other herbicides, so that the effective period of the product is short, and the drug effect and the weeding effect of the compound composition are seriously influenced. In view of the fact that the topramezone dispersible oil suspending agent is decomposed under the influence of various factors to reduce the activity and finally influence the pesticide effect, the problem that the effective components are prevented from being decomposed and the stability of the effective components in the process of storage and transportation is maintained is a difficulty in the research of the technical field of pesticides. Therefore, there is an urgent need to find a dispersible oil suspension herbicidal composition containing topramezone with good stability.
Disclosure of Invention
Object of the Invention
In order to overcome the defects, the invention aims to provide a pesticide dispersible oil suspending agent and a preparation method and application thereof.
The invention adopts the compound composition of atrazine, dimethyl isooctyl chloride and topramezone, and the dispersible oil suspending agent is obtained through a large number of screening and experiments, thereby overcoming the defect of poor stability of the traditional dispersible oil suspending agent, greatly reducing the abnormality of separated chromatographic oil during the shelf life or the product transportation and solving the problems of sedimentation and bottoming; and the problem that three effective components are compounded and are easy to decompose is solved by screening the compound stabilizer, so that the physical and chemical stability of the product is greatly increased, and the compound stabilizer has great advantages for long-term storage of customers.
The herbicide (atrazine 25% + dimethyl isooctyl chloride 15% + topramezone 2%) OD of the invention ensures that the herbicide has obvious synergistic effect on the weeding effect of corn fields, greatly delays the generation of weed resistance, and has the advantages of environmental friendliness, high efficacy, no need of barrel mixing auxiliary agent and convenient use; meanwhile, the problems of poor stability and high cost of the dispersible oil suspending agent are solved.
Solution scheme
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides a pesticide dispersible oil suspension comprising the following raw materials in percentage by weight: 5 to 35 percent of atrazine, 5 to 30 percent of dimethyltetracloisonne, 1 to 10 percent of topramezone, 1 to 5 percent of dispersing agent, 5 to 20 percent of emulsifying agent, 1 to 5 percent of rheological agent, 0.1 to 5 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 15 to 65 percent of dispersing medium;
the emulsifier comprises at least one of castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether, potassium sorbitan monooleate polyoxyethylene ether and calcium dodecyl benzene sulfonate;
the other auxiliary agents comprise zero, one or more of antifreezing agents, defoamers and preservatives.
Further, the stabilizer is an alkaline compound; optionally, the stabilizer is at least one of alkali metal hydroxide, bicarbonate, carbonate and silicate; optionally, the stabilizer is at least one of alkali metal hydroxide, alkali metal bicarbonate, alkali metal carbonate and alkali metal silicate; optionally, the stabilizer is selected from one or more of sodium hydroxide, potassium hydroxide, sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, sodium silicate and potassium silicate; optionally, the stabilizer is selected from one or more of sodium hydroxide, sodium bicarbonate, sodium carbonate and sodium silicate.
Further, the stabilizer comprises 0.3 to 2%, alternatively 0.3 to 1%, alternatively 0.5 to 1% by weight of the dispersible oil suspending agent.
Further, the dispersion medium is selected from at least one of methyl esterified vegetable oil such as methyl oleate, soybean oil methyl ester, rapeseed oil methyl ester; alternatively methyl oleate; optionally, the dispersion medium comprises 17 to 61%, optionally 17 to 38% by weight of the dispersible oil suspending agent.
Further, the rheological agent comprises one or two of organic bentonite and white carbon black, and optionally, the weight ratio of the organic bentonite to the white carbon black is 2: (0-3), optionally 2: (0-1).
Further, the emulsifier comprises calcium dodecyl benzene sulfonate and other ether dispersants, and the other ether dispersants comprise one or more of castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether and potassium sorbitan monooleate polyoxyethylene ether.
Further, the weight ratio of the calcium dodecyl benzene sulfonate and other ether dispersants is (1-5): 12, optionally (2-3.5): 12, optionally (2.5-3.5): 12.
further, the dispersing agent comprises at least one of EO/PO block copolymer, phosphate ester, polyurethane type block copolymer and sulfonate type macromolecule dispersing agent.
Further, the weight ratio of the dispersant, the emulsifier and the dispersion medium is (2-3): (14-15.5):
(17-61), optionally (2-3): (14.5-15.5): (17-38).
Further, the weight ratio of atrazine, dimethyl tetrachlor isooctyl ester and topramezone is (10-35): (8-20):
(2-5), optionally (25-35): (15-20): (2-5).
Further, the material comprises the following raw materials in percentage by weight: 10 to 35 percent of atrazine, 8 to 20 percent of isooctyl methochloride, 2 to 5 percent of topramezone, 2 to 5 percent of dispersing agent, 12 to 18 percent of emulsifying agent, 2 to 5 percent of rheological agent, 0.3 to 2 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 61 percent of dispersing medium.
Further, the material comprises the following raw materials in percentage by weight: 10 to 35 percent of atrazine, 8 to 20 percent of isooctyl dimethyltetrachloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14 to 15.5 percent of emulsifying agent, 2 to 3 percent of rheological agent, 0.3 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 61 percent of dispersing medium.
Further, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of isooctyl dimethyltetrachloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14.5 to 15.5 percent of emulsifying agent, 2 to 3 percent of rheological agent, 0.5 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 38 percent of dispersing medium.
Further, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of isooctyl dimethyltetrachloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14.5 to 15.5 percent of emulsifying agent, 2.5 to 3 percent of rheological agent, 0.5 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 38 percent of dispersing medium.
Further, the material comprises the following raw materials in percentage by weight: 25-30% of atrazine, 15% of dimethyl isooctyl chloride, 2-5% of topramezone, 2-3% of sulfonate polymer dispersant or polyurethane block copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2-2.5% of organic bentonite, 0-1% of white carbon black, 0.5-1% of stabilizer, 0-10% of other auxiliary agents and 17-38% of methyl oleate.
Further, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of dimethyl isooctyl chloride, 2 to 5 percent of topramezone, 2 to 3 percent of sulfonate polymer dispersant or polyurethane block copolymer, 12 percent of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5 to 3.5 percent of calcium dodecyl benzene sulfonate, 2 to 2.5 percent of organic bentonite, 0 to 1 percent of white carbon black, 0.5 to 1 percent of stabilizer, 0.1 to 5 percent of defoamer and 17 to 38 percent of methyl oleate.
Further, the material comprises the following raw materials in percentage by weight: 25-30% of atrazine, 15% of dimethyl isooctyl chloride, 2-5% of topramezone, 2% of sulfonate polymer dispersant or polyurethane type segmented copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2% of organic bentonite, 1% of white carbon black, 0.5-1% of stabilizer, 0.1-5% of defoamer and 29-38% of methyl oleate.
Further, methyl oleate makes up 100%.
Further, the material comprises the following raw materials in percentage by weight: 25% of atrazine, 15% of isooctyl dimethyl tetrachloride, 2% of topramezone, 2% of sulfonate polymer dispersant or polyurethane block copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2% of organic bentonite, 1% of white carbon black, 0.5-1% of stabilizer, 0.1-5% of defoamer and 100% of methyl oleate.
Further, the other auxiliary agents comprise at least one, two, three or four auxiliary agents in the following weight fractions:
0-5% of antifreezing agent; optionally, the antifreezing agent is one or more of propylene glycol, ethylene glycol and glycerol;
0 to 1% of defoaming agent, optionally 0.1 to 0.5%; the defoaming agent is at least one of a polyether defoaming agent, an organic silicon defoaming agent or a polyether modified polysiloxane defoaming agent;
and 0-5% of preservative, optionally one or more of paraformaldehyde, isothiazolinone and potassium sorbate.
In a second aspect, there is provided a method for preparing the pesticide-dispersible oil suspension agent according to the first aspect, comprising: mixing a dispersion medium and a rheological agent, adding an emulsifier, a dispersing agent, a stabilizing agent and other auxiliary agents into a reaction kettle after full activation, and fully mixing and uniformly dispersing; sequentially adding atrazine, dimethyl tetracloisonne isooctyl ester and topramezone under a high-speed shearing state, and mixing to obtain a stable dispersible oil suspending agent;
optionally, the mixture is milled after mixing to a mixture particle size D90 of less than 5 μm.
In a third aspect, there is provided a method of using the pesticide dispersible oil suspension of the first aspect or the dispersible oil suspension prepared by the method of preparation of the second aspect, the dispersible oil suspension being diluted with water and applied by spraying, optionally at a dilution factor of 300-800.
In a fourth aspect, there is provided a use of the pesticide-dispersible oil suspension of the first aspect or the pesticide-dispersible oil suspension prepared by the preparation method of the second aspect for controlling weeds in cultivated or non-cultivated lands; alternatively, the weeds are annual and perennial weeds in a corn field; optionally, the cultivated or non-cultivated land weeds comprise one or more of foxtail, barnyard grass, acalypha australis, goosegrass, wild oat, green bristlegrass, crabgrass, purslane, quinoa, galium, rape, black nightshade, ragweed, water thorn needle, field bindweed and teff.
Advantageous effects
(1) The compound pesticide composition of atrazine, dimethyl isooctyl chloride and topramezone has higher weeding effect, reduces the dosage of herbicide and the application frequency, thereby reducing the cost of the medicament.
(2) The invention carries out a large amount of screening work on the auxiliary agent system, and finally obtains the system with the best matching degree among the components, especially 3 components of the emulsifier, the dispersant and the rheological agent, thereby greatly reducing the processing difficulty of the dosage form, improving the stability of the dosage form, having the advantages of good emulsifying dispersibility and high suspension rate, effectively solving the problems of sample storage creaming, flocculation, particle size growth and the like, and having excellent physical stability after long-term placement. Through screening the stabilizer, the degradation problem of the obtained product after long-term storage is obviously improved, so that the use effect of the product after long-term storage is still excellent for customers.
(3) The pesticide preparation provided by the invention is safe to corn crops and has good pesticide effect on annual and perennial weeds; the product adopts safe and environment-friendly methyl esterification vegetable oil, is safe to transport and environment-friendly to use.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some embodiments, materials, protocols, methods, means, etc. well known to those skilled in the art are not described in detail in order to highlight the gist of the present invention.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
The weeding composition provides a new choice for weed control. The present disclosure is further illustrated by the following examples, but the present disclosure is not limited thereby.
Atrazine, isooctyl dimethyltetrachloride and topramezone are commercially available in the following examples, and other auxiliary agents are commercially available.
The invention is illustrated in further detail by the following examples.
The inventor finally obtains a system with the best matching degree among the components through a large number of screening works, particularly the screening and the combination of 3 components of an emulsifying agent, a dispersing agent and a dispersing medium, greatly reduces the processing difficulty of the dosage form, improves the stability of the dosage form, has the advantages of good emulsifying and dispersing properties and high suspension rate, effectively solves the problems of sample storage creaming, flocculation, particle size growth and the like, and has excellent physical stability after long-term placement. Through screening the stabilizer, the degradation problem of the obtained product after long-term storage is obviously improved, so that the use effect of the product after long-term storage is still excellent for customers. Specifically, the formulation of some examples is shown in table 1:
table 1 formulations of examples and comparative examples
In the above examples and comparative examples, both the auxiliary and the primary drug are commercially available, for example, the sulfonate-based polymeric dispersant may be an alkyl naphthalene sulfonate formaldehyde polycondensate dispersant, available from Noron or Henschel, the lignin sulfonate dispersant may be available from Maidemansiella pekinensis or Bolich, and the polyurethane-based block copolymer may be available from Jinan Jinhe.
In the above examples and comparative examples, dispersible oil suspensions were prepared as follows: mixing a dispersion medium and a rheological agent, adding an emulsifier, a dispersing agent, a defoaming agent and a stabilizing agent into a reaction kettle after full activation, and fully mixing and uniformly dispersing; sequentially adding atrazine, dimethyl isooctyl chloride and topramezone under a high-speed shearing state, mixing and homogenizing for 10-30 minutes, and then grinding until the particle size D90 of the mixture is smaller than 5 mu m to obtain the stable dispersible oil suspending agent.
The properties of the dispersible oil suspension prepared in the above examples were examined:
test example 1
The suspension rate was measured by the GB/T14825-2006 pesticide suspension rate measurement method, the pourability was measured by the GB/T31737-2015 pesticide pourability measurement method, the dispersion stability was measured by the International pesticide analysis Cooperation Commission CIPAC MT 180 "suspension emulsion dispersion stability measurement", and the pourability was measured by the GB/pesticide pourability measurement method, and the results are shown in Table 2.
TABLE 2 product Properties of the dispersible oil suspensions of examples 1-8 and comparative examples 1-4
As can be seen from the above Table 2, the invention, through screening of the auxiliary agent, especially optimization of the emulsifier, the dispersant and the solvent, significantly improves the physical stability of the product, especially examples 3, 4, 5 and 8.
Test example 2
The above examples were subjected to thermal storage stability analysis, the content of topramezone before and after 14 days of thermal storage at 54℃was detected, the detection of topramezone was carried out by conventional methods such as CIPAC or AOAC, and the degradation rate was calculated, and the results are shown in Table 3.
TABLE 3 stability analysis of topramezone of examples 1 to 8 and comparative examples 1 to 4
From the above table, it can be seen that: the stability of the topramezone is obviously improved through the optimization of the stabilizer.
Field test example 1
Experiment site: the test is arranged in a field suburban in a frigid pavilion area of a city in Shandong province, has flat land, complete irrigation and drainage facilities, consistent field management level and even fertility, and is suitable for the field. Corn is sowed in 2022, 6 and 10 days, the variety is Zhensweet No. six, the cultivation mode is direct seeding, and the main weeds in the test field are crabgrass, barnyard grass, green bristlegrass, acalypha australis, amaranthus retroflexus, chenopodium quinoa and the like.
Experimental conditions: and (5) carrying out stem and leaf spraying treatment on the corn in the 4-5 leaf stage. The pesticide is applied by a worker pesticide-16 knapsack manual sprayer for 1 time, 450kg of water is added according to the dosage of each hectare preparation to prepare the pesticide, and the pesticide is uniformly sprayed according to the amount of the pesticide in a converted district. With random block arrangement, 4 repetitions, cell area 30m 2 . Weather was good during the test period and no rain was present on the day of application.
Experimental grouping: a total of 3 treatments were set up, each: treatment 1: spraying clear water and blank control; treatment 2: examples 3, 4, 7 and comparative example 1; treatment 3: the compositions included a control agent (atrazine 25% + dimethyl isooctyl chloride 15% + topramezone 2%) as a dispersible oil suspension (commercially available sample 1, available from Hebei Zhi Chemie Co., ltd.), (atrazine 25% + topramezone 2%) as a dispersible oil suspension (commercially available sample 2, available from Shandong Hailier chemical Co., ltd.), (atrazine 25% + dimethyl tetrachloro 20%) as a suspension (commercially available sample 3, available from Liaoning Hai Jia Agrochemical Co., ltd.). Each medicament is sprayed on stems and leaves according to the dosage of the active ingredients of 650 g/hectare.
Drug efficacy test observation and data arrangement
The weed fresh weight control efficiency calculating method comprises the following steps:
control effect (%) = (fresh weed weight in control area-fresh weed weight in treated area)/fresh weed weight in control area 100 × fresh weed weight in control area
The investigation method for the fresh weight control effect of weeds comprises the following steps:
30d after application, 4 points are randomly taken from each cell, each point is 0.25m < 2 >, all annual weeds are pulled out to be classified as grass fresh weight, and the fresh weight control effect is calculated, and the result is shown in the following table 4.
Table 4 fresh weight control results of each treatment agent for controlling annual weeds in sweet corn fields
From the above table, the efficacy of example 3 and example 4 is better than that of ordinary example 7, and is significantly better than that of comparative example and the current commercial samples, demonstrating that the auxiliary agent of the present invention can improve the control effect of the active ingredient.
The safety of each treatment against fresh weight of weeds and against corn was investigated. The results are shown in Table 5 below.
The corn safety investigation method comprises the following steps:
and observing whether the pesticide is harmful to corn or not 30d after pesticide application, and recording the type and degree of the pesticide. Grading the phytotoxicity of each cell according to a phytotoxicity grading method: grade 1, normal corn growth, no signs of injury; grade 2, corn with slight phytotoxicity less than 10%; grade 3, the pesticide injury in corn and the like can be recovered later, and the yield is not affected; grade 4, the corn has heavier phytotoxicity, is difficult to recover, and causes yield reduction; grade 5, the corn has serious phytotoxicity and cannot be recovered, resulting in obvious yield reduction or absolute yield.
Table 5 safety of each treatment agent on sweet corn
| Experimental grouping | Dosage (a.i g/hectare) | Grade of phytotoxicity |
| Example 3 | 650 | 1 |
| Example 4 | 650 | 1 |
| Example 7 | 650 | 1 |
| Comparative example 1 | 650 | 3 |
| Commercially available sample 1 | 650 | 2 |
| Commercial sample 2 | 650 | 1 |
| Commercially available sample 3 | 650 | 2 |
From the above table, examples 3, 4, 7 and commercial sample 2 were superior to the other treatment groups in terms of safety to corn.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The pesticide dispersible oil suspending agent is characterized by comprising the following raw materials in percentage by weight: 5 to 35 percent of atrazine, 5 to 30 percent of dimethyltetracloisonne, 1 to 10 percent of topramezone, 1 to 5 percent of dispersing agent, 5 to 20 percent of emulsifying agent, 1 to 5 percent of rheological agent, 0.1 to 5 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 15 to 65 percent of dispersing medium;
the emulsifier comprises at least one of castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic acid polyoxyethylene ether, potassium sorbitan monooleate polyoxyethylene ether and calcium dodecyl benzene sulfonate;
the other auxiliary agents comprise zero, one or more of antifreezing agents, defoamers and preservatives.
2. The dispersible oil suspension agent of claim 1 wherein the stabilizer is a basic compound; optionally, the stabilizer is at least one of alkali metal hydroxide, bicarbonate, carbonate and silicate; optionally, the stabilizer is at least one of alkali metal hydroxide, alkali metal bicarbonate, alkali metal carbonate and alkali metal silicate; optionally, the stabilizer is selected from one or more of sodium hydroxide, potassium hydroxide, sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, sodium silicate and potassium silicate; optionally, the stabilizer is selected from one or more of sodium hydroxide, sodium bicarbonate, sodium carbonate and sodium silicate;
optionally, the stabilizer comprises 0.3 to 2%, optionally 0.3 to 1%, optionally 0.5 to 1% by weight of the dispersible oil suspending agent.
3. The dispersible oil suspension agent according to claim 1 or 2, characterized in that the dispersing medium is selected from at least one of methyl esterified vegetable oils such as methyl oleate, soybean oil methyl ester, rapeseed oil methyl ester; alternatively methyl oleate; optionally, the dispersion medium accounts for 17-61% of the weight of the dispersible oil suspending agent, and optionally 17-38%;
and/or the rheological agent comprises one or two of organic bentonite and white carbon black, and optionally, the weight ratio of the organic bentonite to the white carbon black is 2: (0-3), optionally 2: (0-1).
4. A dispersible oil suspension according to any one of claims 1 to 3 wherein the emulsifier comprises calcium dodecylbenzene sulfonate and other ether dispersants, the other ether dispersants comprising one or more of castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, oleic polyoxyethylene ether, potassium sorbitan monooleate polyoxyethylene ether; optionally, the weight ratio of the calcium dodecyl benzene sulfonate to the other ether dispersant is (1-5): 12, optionally (2-3.5): 12, optionally (2.5-3.5): 12;
and/or the dispersing agent comprises at least one of EO/PO block copolymer, phosphate, polyurethane type block copolymer and sulfonate type macromolecular dispersing agent.
5. The dispersible oil suspension agent according to any one of claims 1 to 4, wherein the weight ratio of the dispersant, the emulsifier and the dispersing medium is (2 to 3): (14-15.5): (17-61), optionally (2-3): (14.5-15.5): (17-38);
and/or atrazine, dimethyl tetrachlor isooctyl ester and topramezone (10-35): (8-20):
(2-5), optionally (25-35): (15-20): (2-5).
6. The dispersible oil suspension agent according to any one of claims 1 to 5, characterized in that it comprises the following raw materials in weight percentage: 10 to 35 percent of atrazine, 8 to 20 percent of isooctyl methochloride, 2 to 5 percent of topramezone, 2 to 5 percent of dispersing agent, 12 to 18 percent of emulsifying agent, 2 to 5 percent of rheological agent, 0.3 to 2 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 61 percent of dispersing medium;
optionally, the material comprises the following raw materials in percentage by weight: 10 to 35 percent of atrazine, 8 to 20 percent of isooctyl methochloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14 to 15.5 percent of emulsifying agent, 2 to 3 percent of rheological agent, 0.3 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 61 percent of dispersing medium;
optionally, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of isooctyl methochloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14.5 to 15.5 percent of emulsifying agent, 2 to 3 percent of rheological agent, 0.5 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 38 percent of dispersing medium;
optionally, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of isooctyl methochloride, 2 to 5 percent of topramezone, 2 to 3 percent of dispersing agent, 14.5 to 15.5 percent of emulsifying agent, 2.5 to 3 percent of rheological agent, 0.5 to 1 percent of stabilizing agent, 0 to 10 percent of other auxiliary agent and 17 to 38 percent of dispersing medium;
optionally, the material comprises the following raw materials in percentage by weight: 25-30% of atrazine, 15% of dimethyl isooctyl chloride, 2-5% of topramezone, 2-3% of sulfonate high molecular dispersant or polyurethane block copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2-2.5% of organic bentonite, 0-1% of white carbon black, 0.5-1% of stabilizer, 0-10% of other auxiliary agents and 17-38% of methyl oleate;
optionally, the material comprises the following raw materials in percentage by weight: 25 to 35 percent of atrazine, 15 to 20 percent of dimethyl isooctyl chloride, 2 to 5 percent of topramezone, 2 to 3 percent of sulfonate polymer dispersant or polyurethane block copolymer, 12 percent of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5 to 3.5 percent of calcium dodecyl benzene sulfonate, 2 to 2.5 percent of organic bentonite, 0 to 1 percent of white carbon black, 0.5 to 1 percent of stabilizer, 0.1 to 5 percent of defoamer and 17 to 38 percent of methyl oleate;
optionally, the material comprises the following raw materials in percentage by weight: 25-30% of atrazine, 15% of dimethyl isooctyl chloride, 2-5% of topramezone, 2% of sulfonate polymer dispersant or polyurethane block copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2% of organic bentonite, 1% of white carbon black, 0.5-1% of stabilizer, 0.1-5% of defoamer and 29-38% of methyl oleate;
alternatively, methyl oleate makes up 100%;
optionally, the material comprises the following raw materials in percentage by weight: 25% of atrazine, 15% of isooctyl dimethyl tetrachloride, 2% of topramezone, 2% of sulfonate polymer dispersant or polyurethane block copolymer, 12% of fatty alcohol polyoxyethylene ether or sorbitan potassium monooleate polyoxyethylene ether, 2.5% of calcium dodecyl benzene sulfonate, 2% of organic bentonite, 1% of white carbon black, 0.5-1% of stabilizer, 0.1-5% of defoamer and 100% of methyl oleate.
7. The dispersible oil suspension agent according to any one of claims 1 to 6, characterized in that the other adjuvants comprise at least one, two, three or four adjuvants in the following weight fractions:
0-5% of antifreezing agent; optionally, the antifreezing agent is one or more of propylene glycol, ethylene glycol and glycerol;
0 to 1% of defoaming agent, optionally 0.1 to 0.5%; the defoaming agent is at least one of a polyether defoaming agent, an organic silicon defoaming agent or a polyether modified polysiloxane defoaming agent;
and 0-5% of preservative, optionally one or more of paraformaldehyde, isothiazolinone and potassium sorbate.
8. A process for the preparation of a pesticide-dispersible oil suspension as claimed in any one of claims 1 to 7, comprising: mixing a dispersion medium and a rheological agent, adding an emulsifier, a dispersing agent, a stabilizing agent and other auxiliary agents into a reaction kettle after full activation, and fully mixing and uniformly dispersing; sequentially adding atrazine, dimethyl tetracloisonne isooctyl ester and topramezone under a high-speed shearing state, and mixing to obtain a stable dispersible oil suspending agent;
optionally, the mixture is milled after mixing to a mixture particle size D90 of less than 5 μm.
9. A method of using the pesticidal dispersible oil suspension of any one of claims 1 to 7 or the dispersible oil suspension prepared by the method of preparation of claim 8, wherein the dispersible oil suspension is diluted with water and applied by spraying, optionally at a dilution factor of 300-800.
10. Use of the pesticide-dispersible oil suspension of any one of claims 1 to 7 or the pesticide-dispersible oil suspension prepared by the preparation method of claim 8 for controlling cultivated or non-cultivated weeds; alternatively, the weeds are annual and perennial weeds in a corn field; optionally, the cultivated or non-cultivated land weeds comprise one or more of foxtail, barnyard grass, acalypha australis, goosegrass, wild oat, green bristlegrass, crabgrass, purslane, quinoa, galium, rape, black nightshade, ragweed, water thorn needle, field bindweed and teff.
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|---|---|---|---|
| CN202311846438.7A CN117814220A (en) | 2023-12-28 | 2023-12-28 | Pesticide dispersible oil suspending agent and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311846438.7A CN117814220A (en) | 2023-12-28 | 2023-12-28 | Pesticide dispersible oil suspending agent and preparation method and application thereof |
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| CN202311846438.7A Pending CN117814220A (en) | 2023-12-28 | 2023-12-28 | Pesticide dispersible oil suspending agent and preparation method and application thereof |
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