CN1919437A - Disperser composition and application thereof - Google Patents

Disperser composition and application thereof Download PDF

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Publication number
CN1919437A
CN1919437A CN200510129204.6A CN200510129204A CN1919437A CN 1919437 A CN1919437 A CN 1919437A CN 200510129204 A CN200510129204 A CN 200510129204A CN 1919437 A CN1919437 A CN 1919437A
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China
Prior art keywords
imidacloprid
wdg
dispersant composition
test
naphthalene sulfonate
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CN200510129204.6A
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Inventor
徐年凤
韩顺宁
熊建民
沈敏
张瑶
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JIANGSU PESTICIDE RESEARCH INSTITUTE Co Ltd
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JIANGSU PESTICIDE RESEARCH INSTITUTE Co Ltd
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Abstract

The invention discloses a disperser composition and application, which is composed of 10-90% naphthalenesulfonate and 90-10% polycarboxylate to prepare water dispersing particle pesticide.

Description

A kind of dispersant composition and application thereof
Technical field
The present invention relates to a kind of dispersant, particularly relate to a kind of dispersant with high efficiency composition that certain proportion naphthalene sulfonate and polycarboxylate are composited that contains, the invention still further relates to the application of this dispersant.
Background technology
Reach at present in considerable time from now on, chemical pesticide remains the topmost means of protection crops good harvest.Use along with chemical pesticide, the worldwide environment and the ecological balance have all been suffered heavy damage, the toxicity of agricultural chemicals, residual and environmental pollution is very serious, in order to address this problem, development should be strengthened on the one hand, the environment friendly agricultural preparation will be researched and developed and use on the other hand the novel pesticide of high-efficiency low-toxicity, easily biological-degradable and environmentally compatible.Along with China becomes a full member of the World Trade Organization, more should strengthen the research and development of environment-friendly type pesticides new formulation, to strengthen the international competitiveness of China's pesticide industry.The development and application of the insecticides adjuvant of high-efficiency low-toxicity is the prerequisite that guarantees the environment friendly agricultural formulation development, but the insecticides adjuvant of high-efficiency low-toxicity is fewer at present.
Summary of the invention
Purpose of the present invention is exactly in order to address the above problem, and proposes the pesticide dispersing agent composition of a kind of high-efficiency low-toxicity, environmental protection.
Another object of the present invention provides the application of this dispersant composition, and particularly this dispersant composition is at preparation environmental protection type agricultural chemical novel form---the application in the water-dispersible granules (WDG).
The objective of the invention is to be achieved through the following technical solutions:
A kind of dispersant composition, this dispersant composition is made up of naphthalene sulfonate and polycarboxylate, and the percentage by weight of naphthalene sulfonate and polycarboxylate is 10～90%: 90～10%.
Described dispersant composition, wherein the weight ratio of naphthalene sulfonate and polycarboxylate is 60～80%: 40～20%.
Described dispersant composition, the structural formula of wherein said naphthalene sulfonate are general formula (I):
General formula (I)
Wherein R is H, CH 3, C 4H 9, ArCH 3Alkyl or aromatic alkyl group.
Described dispersant composition, wherein said polycarboxylate are polyvinylpyrrolidone, maleic acid acrylic copolymer, polyacrylate, they or use separately or composite use.
The application of above-mentioned dispersant composition in the preparation water-dispersible granules agricultural.
Described application is characterized in that the percentage by weight of described dispersant composition in water-dispersible granules is 5～10%.
Application of the present invention is in the process of water-dispersible granules, adds a certain amount of above-mentioned composition, mix, and extruder grain behind the liquid feeding, dry finishing gets final product.
Beneficial effect of the present invention:
Dispersant composition outward appearance provided by the invention is brown to light brown powder, stable performance, and active higher, versatility is stronger.
Adopt not only function admirable of water-dispersible granules product that dispersant composition of the present invention makes: smooth in appearance is even, suspensibility is high, disintegration is fast, and resistance is little in granulation process, the machinery heating makes the lower active component of some fusing points also can be processed into the water-dispersible granules product significantly better than not adding said composition.
Heat stabilization test of the present invention and field control effectiveness test (is example with Application Example 6 products obtained therefroms):
The test of table 1 Application Example 6 products obtained therefrom heat storage stabilities (aluminium foil bag sealing, 54 ± 2 ℃, 14d) result
Numbering Imidacloprid content % Suspensibility
Before the storage After the storage Resolution ratio Before the storage After the storage
1 75.12 74.82 0.41 95 90
2 75.16 74.87 0.37 93 91
The present invention has carried out field control effectiveness test to the product (75% Imidacloprid WDG) of using embodiment 6, and the result shows that field efficacy better (sees " report of 75% Imidacloprid WDG control brassicaceous vegetable aphid field control effectiveness test " for details).Alternative is carried out field test with external like product 70% Imidacloprid WDG (trade name Amy pleasure, German BAYER company product) and homemade 10% Imidacloprid WP, and trial crops is brassicaceous vegetable (wild cabbage), and controlling object is an aphid.Result of the test shows: the happy drug effect of 75%WDG and Amy is suitable, every mu of field 1.0ga.i, and 7 days preventive effects are more than 95%, and 10%WP will reach same effect consumption at 1.2ga.i/ mu.The indoor harmacological effect contrast shows that Imidacloprid 75%WDG is suitable with the external happy drug effect of like product Amy, all is better than WP, and is suitable with SL.
75% Imidacloprid WDG control brassicaceous vegetable aphid
The field control effectiveness test report
Client: JiangSu Province agricultural chemical Research Institute Co., Ltd
Carrier: Jiangsu Institute for Pesticides
Nanjing Liuhe District plant test station for plant protection
Test site: Nanjing, Jiangsu Province Liuhe District Qiao Xi village
Test License Number: SHY044726
Person in charge of the technology aspect: Wang Maotao
The participant: the brave Liu's filial piety of the Xing Wuchuan of Cai family is intelligent
Yin Xiao Geng Rong builds cloud Feng Xiao Yan
The report target date: 2004 on November 29,
Economize the test application numbers: test License Number: the SHY044726 of NI04259 portion of Soviet Union
The report of 75% Imidacloprid WDG control brassicaceous vegetable aphid field control effectiveness test
Jiangsu Institute for Pesticides
Nanjing Liuhe District plant test station for plant protection
1 test objective
Entrusted by the JiangSu Province agricultural chemical Research Institute Co., Ltd, we have carried out field control effectiveness test to the 75% Imidacloprid WDG control brassicaceous vegetable aphid of its development, so that clearly this product is prevented and treated the field efficacy of brassicaceous vegetable aphid, determine best using dosage and result of use, observe its security, provide foundation for this product carries out agriculture chemical registration to brassicaceous vegetable.
2 trial crops and object
2,1 trial crops: wild cabbage, kind are summer light wild cabbage.
2,2 controlling objects: brevicoryne brassicae Brevicoryne brassicae is wingless aphid.
3 overviews experimental field
The experimental plot is located at Liuhe District Qiao Xi village, Nanjing and opens poly-vegetable plot, rich peasant family, and preceding stubble is a crowndaisy chrysanthemum.The vegetable plot area is 450m 2Wild cabbage was sowed August 24, field planting on September 21, and seeding row spacing is 30 * 30cm.Prevented and treated cabbage caterpillar, prodenia litura etc. October 3 with A Su, rich water quality management is with conventional, and wild cabbage breeding time is the bag heart stage during test.
4 meteorologies and soil information
4,1 meteorological data: 12.8 ℃ of duration of test (8-November 21 November) temperature on average, 17.9 ℃ of the highest temperatures, 9.0 ℃ of the lowest temperatures.November 9, November 10, November 11, November 13, rainfall was arranged, 5 days rain days, rainfall 54.7mm on November 14.Medication experimental field was fine to cloudy weather the same day, 17.7 ℃ of temperature on average, 28.1 ℃ of the highest temperatures, 10.2 ℃ of the lowest temperatures.
4,2 soil informations: soil is sandy loam, pH value 7.0, and neutrality, quality is fertile.
5 experimental design and arrangement
5,1 test is handled
Test medicine:
75% Imidacloprid WDG 2.0g/666.7m 2(JiangSu Province agricultural chemical Research Institute Co., Ltd provides)
75% Imidacloprid WDG 1.67g/666.7m 2(JiangSu Province agricultural chemical Research Institute Co., Ltd provides)
75% Imidacloprid WDG 1.33g/666.7m 2(JiangSu Province agricultural chemical Research Institute Co., Ltd provides)
75% Imidacloprid WDG 1.0g/666.7m 2(JiangSu Province agricultural chemical Research Institute Co., Ltd provides)
The contrast medicament:
10% Imidacloprid WP 20g/666.7m 2(east, Jiangsu Province precious agricultural chemicals Co., Ltd produces)
Blank: do not spray medicine
5,2 sub-districts are provided with: 6 processing are established in test, and every processing repeats 4 times, totally 24 sub-districts, and arrange sub-district district's group at random.Every sub-district area is 15m 2, test is 360m with the vegetable plot area 2
5,3 application methods and time: the hand-held compression sprayer of 3WSS0.8 type is adopted in dispenser, and in spray in 9: 30 morning of November 8 medicine, spouting liquid is 50kg/666.7m 2
5,4 investigation methods and time: fixed 3 points in every sub-district, fix 5 strain wild cabbages at every, investigate 15 strain wild cabbages altogether, investigation aphid amount radix before the dispenser, each investigation in 3 days, 7 days, 14 days each sub-district aphid amount once after dispenser is calculated each sub-district insect population go down rate (%) and preventive effect (%).
5,5 drug effect computational methods and statistical analyses
Calculate the prevention effect of each treatment region with the insect population rate of going down, method is seen " pesticide field efficacy medicine test criterion (one) " GB/T 17980.13-2000.
Each prevention effect of handling is changed with the new multipole difference of DMRT statistic law comparative test medicament and the prevention effect of contrast medicament to cabbage caterpillar through the arcsine square root.
The influence of 6 pairs of crops and other biology
75% Imidacloprid WDG is to the no poisoning of wild cabbage growth safety.
7 result of the tests and analysis
Result of the test sees table 1, table 2 for details.As shown in Table 1: behind the medicine 3 days, 75% Imidacloprid WDG of JiangSu Province agricultural chemical Research Institute Co., Ltd development was better to the prevention effect of cabbage aphid, 2.0g/666.7m 2Preventive effect be up to 96.76%, 1.67g, 1.33g, 1.0g/666.7m 2Preventive effect to cabbage aphid is respectively 92.01%, 91.96%, 89.61%, and it is also better that east, contrast medicament Jiangsu precious agricultural chemicals Co., Ltd produces the preventive effect of 10% Imidacloprid WP, reaches 94.46%.As shown in Table 2,75% Imidacloprid WDG 2.0g/666.7m 2With 75% Imidacloprid WDG 1.33g/666.7m 2, 10g/666.7m 2And 10% Imidacloprid 20g/666.7m 2There were significant differences, do not have significant difference between other chemicals treatment, 75% Imidacloprid WDG2.0g/666.7m 2With 10% Imidacloprid 20g/666.7m 2Between two chemicals treatment utmost point significant difference is arranged, electrodeless significant difference between other chemicals treatment.
Behind the medicine 7 days, each chemicals treatment was all higher to the preventive effect of cabbage aphid.75% Imidacloprid WDG 2.0g, 1.67g, 1.33g, 1.0g/666.7m 2Preventive effect be respectively 97.27%, 96.13%, 96.36%, 94.26%, contrast medicament 10% Imidacloprid 20g/666.7m 2Preventive effect be 96.80%.There is not significant difference between each chemicals treatment.
Behind the medicine 14 days, each sub-district aphid amount rose to some extent, and preventive effect reduces.75% Imidacloprid WDG 2.0g, 1.67g, 1.33g, 1.0g/666.7m 2Preventive effect be respectively 82.15%, 80.70%, 80.38%, 82.21%, contrast medicament 10% Imidacloprid 20g/666.7m 2Preventive effect be 86.01%.There is not significant difference between each chemicals treatment.
Table 1 75% Imidacloprid WDG control cabbage aphid field control effectiveness test result and statistical analysis table
(Nanjing in November, 2004)
Handle Behind the medicine 3 days Behind the medicine 7 days Behind the medicine 14 days
Preventive effect (%) Conspicuousness Preventive effect (%) Conspicuousness Preventive effect (%) Conspicuousness
0.05 0.01 0.05 0.01 0.05 0.01
75% Imidacloprid WDG 2.0g/666.7m 2 96.76 a A 97.27 a A 82.15 a A
75% Imidacloprid WDG 1.67g/666.7m 2 92.01 ab AB 96.13 a A 80.7 a A
75% Imidacloprid WDG 1.33g/666.7m 2 91.96 b AB 96.36 a A 80.38 a A
75% Imidacloprid WDG 1.0g/666.7m 2 89.61 b AB 94.26 a A 82.21 a A
10% Imidacloprid WP 20g/666.7m 2 94.46 b B 96.8 a A 86.01 a A
8 conclusions
8,1 by this experiment as can be known, and 75% Imidacloprid WDG field efficacy of JiangSu Province agricultural chemical Research Institute Co., Ltd development is better, behind the medicine 3 days, removes 1.0g/666.7m 2Preventive effect is 89.61%, and the preventive effect that other 3 concentration are handled all (was being met rain on the 2nd day after because of medicine, preventive effect is had certain influence) more than 90%; 7 days prevention effects are best behind the medicine, remove 1.0g/666.7m 2Preventive effect is 94.26%, and the preventive effect that other 3 concentration are handled is all more than 95%.And behind the medicine 14 days, preventive effect descends, and several concentration are handled preventive effects all only about 80%.In the field aphid high-incidence season, after preventing and treating 7-10 days for the first time, need with the 2nd medicine.
8,275% Imidacloprid WDG 2.0g, 1.67g, 1.33g/666.7m 2These 3 concentration are handled better in the drug effect in field, and dosage is little, can apply in the field.
8,375% Imidacloprid WDG is in this experimental concentration scope, to wild cabbage growth safety, no ill-effect.
The test target date: on November 21st, 2004
Table 2 75% Imidacloprid WDG control brassicaceous vegetable aphid test data
(Nanjing in November, 2004)
Handle Repeat Radix before the medicine Behind the medicine 3 days Behind the medicine 7 days Behind the medicine 14 days
Borer population alive Borer population alive The rate that goes down % Preventive effect % Borer population alive The rate that goes down % Preventive effect % Borer population alive The rate that goes down % Preventive effect %
75% Imidacloprid WDG 2g/666.7m 2 I 1017 30 97.05 97.16 29 97.15 97.50 311 69.42 76.15
II 1205 68 94.36 94.51 25 97.93 98.18 198 83.57 89.95
III 1205 26 97.84 97.85 34 97.18 97.23 349 71.04 82.46
IV 1129 36 96.81 97.54 56 95.04 96.18 365 67.67 80.03
X 96.76 97.27 82.15
75% Imidacloprid WDG 1.67g/666.7m 2 I 1120 119 89.38 89.76 34 96.96 97.34 222 80.18 84.54
II 1066 108 89.87 90.14 64 94.00 94.74 348 67.35 80.02
III 1210 61 94.96 94.97 77 93.64 93.76 586 51.57 70.68
IV 1165 103 91.16 93.19 20 98.28 98.68 235 79.83 87.54
X 92.01 96.13 80.70
75% Imidacloprid WDG 1.33g/666.7m 2 I 1153 99 91.41 91.72 12 98.96 99.09 220 80.92 85.12
II 1086 66 93.92 94.09 27 97.51 97.82 397 63.44 77.63
III 1094 72 93.42 93.43 32 97.07 97.13 441 59.69 75.59
IV 1204 178 85.22 88.61 134 88.87 91.42 328 72.76 83.17
X 91.96 96.36 80.38
75% Imidacloprid WDG 1g/666.7m 2 I 1315 232 82.36 82.99 60 95.44 96.00 247 81.22 85.35
II 1176 134 88.61 88.91 57 95.15 95.76 277 76.45 85.59
III 1008 51 94.94 94.95 57 94.35 94.45 392 61.11 76.45
IV 1376 150 89.10 91.6 164 88.08 90.81 413 69.99 81.46
X 89.61 94.26 82.21
10% Imidacloprid WP 20g/666.7m 2 I 1174 130 88.93 89.32 64 94.55 95.22 242 79.39 83.92
II 1372 43 96.87 96.95 59 95.70 96.24 271 80.25 87.91
III 1112 17 98.47 98.47 18 98.38 98.41 219 80.31 88.08
IV 1219 109 91.06 93.11 42 96.55 97.34 313 74.32 84.14
X 94.46 96.80 86.01
CK I 1102 1143 -3.72 1258 -14.16 1413 -28.22
II 1293 1329 -2.78 1477 -14.23 2113 -63.42
III 1254 1256 -0.16 1278 -1.91 2071 -65.15
IV 1024 1329 -29.79 1328 -29.69 1658 -61.91
X
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Below be dispersant composition embodiment:
Embodiment 1
Sodium methylene bis-naphthalene sulfonate 1g
Polyvinylpyrrolidone 9g
After two kinds of components of above weight are mixed, promptly get dispersant composition.
Embodiment 2
Benzyl naphthalene sodium sulfonate 2g
Maleic acid-acrylic acid copolymer 8g
After two kinds of components of above weight are mixed, promptly get dispersant composition.
Embodiment 3
Naphthalenesulfonic acid-formaldehyde condensate 5g
Sodium Polyacrylate 5g
After two kinds of components of above weight are mixed, promptly get dispersant composition.
Embodiment 4
Nekal 8g
Polyvinylpyrrolidone 2g
After two kinds of components of above weight are mixed, promptly get dispersant composition.
Embodiment 5
Nekal 1.5g
Naphthalene sulfonate derivative (LOMAR D) 2.5g
Polyvinylpyrrolidone 6g
After three kinds of components of above weight are mixed, promptly get dispersant composition.
Below be Application Example:
Application Example 1
The former medicine 75g of Bravo, sodium methylene bis-naphthalene sulfonate 5g, polypropylene sodium 2g, carboxymethyl cellulose 1g, ammonium sulfate is mended to 100g.Mix and be crushed to average grain diameter (following pulverizing requires together) below 10 microns, add the water extruding and granulate, obtain 75% Bravo WDG after the oven dry, record disintegration time less than 20 times, suspensibility is greater than 85%.
The disintegration time assay method is 30 ± 1 ℃ a standard hard water for adding 250ml water temperature in 250ml band plug graduated cylinder, take by weighing the obtained sample of 1g and add in the above-mentioned graduated cylinder, treat the sample complete wetting after, spin upside down 180 the degree (counting 1 time), reversal rate be 2s once, till the complete disintegration of sample.The mensuration of suspensibility is undertaken by national standard.Down together.
Application Example 2
The former medicine 90g of Imazethapyr, sodium methylene bis-naphthalene sulfonate 1g, neopelex 2g, nekal 2g, polyvinylpyrrolidone 1g, the cotton powder of unit is mended to 100g, mix pulverizing, add water and granulate, obtain 90% Imazethapyr WDG after the oven dry, record disintegration time less than 20 times, suspensibility is greater than 90%.
Application Example 3
Carbendazim active compound 75g, benzyl naphthalene sodium sulfonate 5g, polyvinylpyrrolidone 1g, CMS 5, bentonite are mended to 100g, mix pulverizing, add water and granulate, and obtain 75% carbendazim WDG after the oven dry, record disintegration time less than 20 times, and suspensibility is greater than 85%.
Application Example 4
Own azoles alcohol 80g, naphthalene sulfonate derivative (LOMAR D) 5g, polyvinylpyrrolidone 2g, nekal 2g, white diatomite is mended to 100g.Mix pulverizing, add water and granulate, obtain 80% own azoles alcohol WDG after the oven dry, record disintegration time less than 20 times, suspensibility is greater than 85%.
Application Example 5
The former medicine 12.5g of Flusilazole, polyethylene glycol 2g, polyvinylpyrrolidone 3g, naphthalene sulfonate derivative (LOMAR D) 3g, lignosulfonates 5g, diatomite is mended to 100g.Mix pulverizing, add water and granulate, get 12.5% Flusilazole WDG after the oven dry, record disintegration time less than 20 times, suspensibility is greater than 90%.
Application Example 6
The former medicine 75g of Imidacloprid, naphthalene sulfonate derivative (LOMAR D) 4g, maleic acid-acrylic copolymer sodium salt 3g, CMS 2g, to methoxyl group fat barefoot amido benzene sulfonic acid sodium salt 1g, sodium alkyl sulfate 0.5g, TERRIC 11070.5g, sulfate is mended to 100g.Mix pulverizing, add water and granulate, obtain 75% Imidacloprid WDG after the oven dry.Record the disintegration number of times less than 20 times, suspensibility is greater than 90%.

Claims (6)

1, a kind of dispersant composition is characterized in that this dispersant composition is made up of naphthalene sulfonate and polycarboxylate, and the percentage by weight of naphthalene sulfonate and polycarboxylate is 10～90%: 90～10%.
2, dispersant composition according to claim 1, the weight ratio that it is characterized in that naphthalene sulfonate and polycarboxylate is 60～80%: 40～20%.
3, dispersant composition according to claim 1, the structural formula that it is characterized in that described naphthalene sulfonate are general formula (I):
Figure A2005101292040002C1
General formula (I)
Wherein R is H, CH 3, C 4H 9, ArCH 3Alkyl or aromatic alkyl group.
4, dispersant composition according to claim 1 is characterized in that described polycarboxylate is polyvinylpyrrolidone, maleic acid-acrylic acid copolymer or its salt, polyacrylate, they or use separately or composite use.
5, the application of dispersant composition as claimed in claim 1 in the preparation water-dispersible granules agricultural.
6, application according to claim 5 is characterized in that the percentage by weight of described dispersant composition in water-dispersible granules agricultural is 5～10%.
CN200510129204.6A 2005-08-25 2005-11-29 Disperser composition and application thereof Pending CN1919437A (en)

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CN200510094003 2005-08-25
CN200510094003.7 2005-08-25
CN200510129204.6A CN1919437A (en) 2005-08-25 2005-11-29 Disperser composition and application thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492887B (en) * 2008-01-22 2011-12-21 上海德桑精细化工有限公司 Phthalocyanine reactive dyeing leveling agent
CN111567550A (en) * 2020-06-22 2020-08-25 江苏艾津作物科技集团有限公司 Imidacloprid composition, preparation method thereof and application thereof in pesticide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492887B (en) * 2008-01-22 2011-12-21 上海德桑精细化工有限公司 Phthalocyanine reactive dyeing leveling agent
CN111567550A (en) * 2020-06-22 2020-08-25 江苏艾津作物科技集团有限公司 Imidacloprid composition, preparation method thereof and application thereof in pesticide
CN111567550B (en) * 2020-06-22 2021-11-09 江苏艾津作物科技集团有限公司 Imidacloprid composition, preparation method thereof and application thereof in pesticide

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