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CN101167456A - Fenpyroximate water dispersible granule and preparation method thereof - Google Patents

Fenpyroximate water dispersible granule and preparation method thereof Download PDF

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Publication number
CN101167456A
CN101167456A CNA2007101952577A CN200710195257A CN101167456A CN 101167456 A CN101167456 A CN 101167456A CN A2007101952577 A CNA2007101952577 A CN A2007101952577A CN 200710195257 A CN200710195257 A CN 200710195257A CN 101167456 A CN101167456 A CN 101167456A
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agent
water dispersible
fenpyroximate
filler
dispersible granules
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CNA2007101952577A
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张少武
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Abstract

Fenpyroximate water dispersible granule is granula made by mixing and processing fenpyroximate auxiliary agent and filler and can be rapidly disintegrated, dispersed in water to form a high-suspension stable disperse system. No floating dust exists in the producing, using and packing process of the agent, and thereby the agent is safe for operators and does not pollute environment. Compared with prior wettable powder and suspending agent, the agent is large in density, small in volume and able to substantially decrease costs of packing and transporting, and package can be conveniently reclaimed. The agent is good in dispersibility in water, high in suspension rate and able to improve prevention and cure effect.

Description

A kind of fenpyroximate water dispersible granule and preparation method thereof
Technical field
The present invention relates to a kind of stable water dispersible granules and processing method thereof, its main component is an azoles mite ester, adds the formulations of pesticide that the part additive compound forms, and this formulation is easy to use, to user or environmentally friendly.
Background technology
Crops are owing to disease, insect pest, crop smothering, the plague of rats etc. can cause huge production loss, so annual applying pesticides in a large number just can be retrieved the loss of crop.A large amount of uses of agricultural chemicals have caused the pollution of environment: and because human more and more higher to the environmental ecology safe requirement, thereby make the formulations of pesticide develop to direction such as environmentally friendly, efficient.The so just novel formulation of water dispersible granules, its advantage and strong point are: the problem that no dust, organic solvent-free bring etc.Promote the use of widely through the America and Europe, fully demonstrate its unique charm, become each company and mainly studied one of formulation.Along with the development of pesticide industry, the appearance of high activity agricultural chemicals, the needs of market competition and environmental protection, the research and development water dispersible granules has become the urgent task of pesticide processing industry.
Azoles mite ester: (claiming to kill the mite king again) is benzene oxygen pyrazoles miticide.Can directly kill the mite class during high dose, can suppress mite class decortication during low dosage or lay eggs.Have knocking down and suppress decorticating, no systemic action.Various pests is had stomach toxicity and action of contace poison,, the control two spotted spider mite is had long, advantage such as dosage is low of preventive effect height, lasting period crop safety.English common name: fenpyroximate, chemical name: (E)-and 4[1,3-dimethyl-(5-phenoxy group-1H-pyrazolyl) methene ammonia oxygen methyl] benzoic acid-1,1 dimethyl ethyl ester.
Structural formula:
Figure S2007101952577D00011
Molecular formula: C 24H 27N 3O 4, molecular weight: 421.49
Though the suspending agent and the aqueous emulsion of existing relevant azoles mite ester yet there are no this formulation of water dispersible granules, and there are unsettled shortcoming in prior dosage form at present.The present invention is primarily aimed at this formulation, and highly active azoles mite ester is processed, and provides that a kind of environmental pollution is little, drug effect is high, easily transportation and stable novel form.
Summary of the invention
The purpose of this invention is to provide a kind of azoles mite ester that contains is the water dispersible granules of main component, and it has characteristics such as environmental pollution is little, drug effect is high, stability is strong.
Each weight percentages of components of fenpyroximate water dispersible granule is: azoles mite ester (0.1-50%) auxiliary agent (0.5-50%) filler (10-90%): described auxiliary agent is meant dispersant and/or wetting agent, disintegrant, stabilizing agent, binding agent; Described filler is the one or more kinds of mixed fillers in white carbon, potter's clay, bentonite, precipitated calcium carbonate, attapulgite, talcum powder, kaolin, the mica.
Preferred percentage by weight is: azoles mite ester (5-30%), auxiliary agent (10-30%), filler (30-70%): described auxiliary agent is meant dispersant and/or wetting agent, disintegrant, stabilizing agent, binding agent; Described filler is the one or more kinds of mixed fillers in white carbon, potter's clay, bentonite, precipitated calcium carbonate, attapulgite, talcum powder, kaolin, the mica.
Dispersant of the present invention can be one or more mixed dispersants among sodium lignin sulfonate, potassium and ammonium salt, polyacrylic acid, sodium phosphate trimer, diffusion agent N O, dispersing agent MF, naphthalene sulfonate, rope uncle SOPA, the NNO.
One or more hybrid adhesives in adhesive starch of the present invention, gum Arabic, polyvinyl alcohol, polyethylene glycol ethers, dextrin, sodium sulphate, rosin, the methylcellulose.
Wetting agent of the present invention is that alkylnaphthalene sulfonate, tea are withered, Chinese honey locust, sldium lauryl sulfate, draw back in powder, penetrant t, penetrating agent JFC, the neopelex one or more and mix wetting agents.
Filler of the present invention (carrier) is white carbon, diatomite, talcum, kaolin, clay, precipitated calcium carbonate.Can use separately also and can two or more mixing use.
The present invention is that in ammonium sulfate, carboxymethyl cellulose, calcium chloride, bentonite, aluminium chloride, the urea one or more mix disintegrants in described disintegrant.
Can make water dispersible granules of the present invention according to the method for well known to a person skilled in the art, as mist projection granulating, rotary table granulation, extruder grain and high strength mixing granulation etc.
Using method of the present invention is simple, can convert water spray by using dosage.
Embodiment
Example of formulations 1:10% fenpyroximate water dispersible granule
Raw material Consumption (weight portion)
Azoles mite ester sodium lignin sulfonate neopelex glucose bentonite precipitated calcium carbonate 10.0 15.0 10.0 15.0 40.0 10.0
With precipitated calcium carbonate precomminution, then it is fully mixed with above-mentioned other composition earlier, adopt comminution by gas stream processing again, make 10% azoles mite ester wetting powder, carry out extruder grain again or wave granulation, promptly become 10% azoles mite ester water dispersion granule.
Example of formulations 2:15% fenpyroximate water dispersible granule
Raw material Consumption (weight portion)
The sodium sldium lauryl sulfate glucose bentonite polyvinyl acetate of azoles mite ester polyacrylic acid and carboxylic acid 15.0 15.0 12.0 15.0 40.0 7.0
Adopt the rotary table granulation method, earlier above-mentioned raw materials (except that polyvinyl acetate) is carried out ultra-fine grinding, make the ultra-fine wetting powder of azoles mite ester, then in the rotating disc that tilts, the limit adds wetting powder, the aqueous solution that the limit spray has poly-vinegar vinyl acetate carries out granulation, promptly becomes 15% fenpyroximate water dispersible granule.
Example of formulations 3:5% acarid nitrile water dispersion granula
Raw material Consumption (weight portion)
The sodium sldium lauryl sulfate sulphur ammonium glucose precipitated calcium carbonate gum Arabic of azoles mite ester polyacrylic acid and carboxylic acid 5.0 5.0 5.0 10.0 15.0 40.0 20.0
Adopt a sulfuration bed comminution granulation, earlier above-mentioned raw materials (except that polyvinyl alcohol) is pulverized, make superfine powder, this powder is kept under flow regime, the binder solution of spraying makes it the aggegation granulation, 5% fenpyroximate water dispersible granule.
Example of formulations 4:20% fenpyroximate water dispersible granule
Raw material Consumption (weight portion)
Azoles mite ester sodium lignin sulfonate sodium bicarbonate acid citrate dextrose 20.0 10.0 27.0 23.0 10.0
Gum Arabic 10.0
Adopt a sulfuration bed comminution granulation, promptly earlier azoles mite ester, sodium lignin sulfonate, sodium bicarbonate, citric acid and glucose carried out ultra-fine grinding, and then the spraying polyvinyl alcohol, make it the granulation of condensing, 20% fenpyroximate water dispersible granule.
Biological Examples 15% fenpyroximate water dispersible granule is to the two spotted spider mite indoor virulence
At outdoor plantation wild cabbage, connect two spotted spider mite worm pupa mid-term in the wild cabbage growth, after breeding for 2 generations continuously, contain the phase of sending out at 3 ~ 4 instar larvaes, larva is adopted back indoor, get healthy and strong 4 the initial stage in age larva contain in the foster worm bottle that has gone to the end (6 centimetres of diameters, high 10 centimetres) respectively, bottle up and down two ends is respectively applied for 50 order nylon wires and tightens, every bottle contain larva about 25 standby.
Every kind of medicament is established 6 kinds of concentration gradients, and every kind of concentration is established 4 repetitions, about 25 4 instar larvaes of every reprocessing.The examination worm is immersed respectively in the soup of respective concentration, taken out after 8 seconds, inhale with blotting paper and remove unnecessary soup, worm is transferred to raised in the bottle (9 centimetres of diameters, high 10 centimetres) again.Place a filter paper in advance in the bottle, put into the fresh pickles leaf of 3 ~ 4 agreements that contracts a film or TV play to an actor or actress, 8 centimeter length, bottleneck is tightened with 60 order gauzes in case its escape is raised under the room temperature of insectary, places one little absorbent cotton in the bottle and drips the supernatant water insulation.Handle and checked each survival borer population and dead borer population of handling of record in back 48 hours.Death standard: with its overturning, the scrambler that can not normally reset is death with insect needle.Contrast is handled with clear water, establishes 4 repetitions.
Result of the test is as follows:
Its LC of Y=5.663+0.845X 50=2.29 R=0.9450
Hence one can see that, and 5% fenpyroximate water dispersible granule (example of formulations 3) is higher to the virulence of two spotted spider mite, and the lethal concentration of 50 is 2.29.
Biological embodiment 2 two spotted spider mite daejeon prevention tests
The results are shown in Table 1:
The drug effect computational methods:
" DMRT " method is adopted in b, significance of difference analysis.
In the formula: CK 0Pt before the medicine of-check plot 0Before-treatment region the medicine
CK 1Pt behind the medicine of-check plot 1Behind-treatment region the medicine
The field control effectiveness test of table 1 15% fenpyroximate water dispersible granule control two spotted spider mite
Handle (g/ha) Insect population radix (head) before the medicine Behind the medicine 1 day Behind the medicine 3 days Behind the medicine 5 days Behind the medicine 9 days
Borer population (head) alive Preventive effect (%) Borer population (head) alive Preventive effect (%) Borer population (head) alive Preventive effect (%) Borer population (head) alive Preventive effect (%)
The contrast of 15% fenpyroximate water dispersible granule clear water 50 40 30 - 40.75 35.45 30.23 20.35 8.00 9.05 11.25 19.23 78.56a 75.38b 68.34c - 6.32 7.18 10.37 20.15 80.35a 76.59ab 70.26c - 4.16 5.27 7.35 21.89 92.16a 85.64b 78.46c - 1.59 2.67 4.57 29.00 98.61a 94.51ab 88.34c -
Annotate: lowercase alphabet is shown in the significance of difference on 95% confidence interval in the table
As seen from the above table, 15% fenpyroximate water dispersible granule (preparation implements 2) has higher preventive effect to two spotted spider mite.
Though above the present invention is described in detail with a general description of the specific embodiments, on the invention basis, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, not departing from the these modifications or improvements basically of spirit of the present invention, all belong to the scope of protection of present invention.

Claims (9)

1. fenpyroximate water dispersible granule, it is characterized in that: its component and content (percentage by weight) are: azoles mite ester 1-80%, auxiliary agent 0.5-50%, filler 10-90%: described auxiliary agent is meant dispersant and/or wetting agent, disintegrant, stabilizing agent, binding agent; Described filler is the one or more kinds of mixed fillers in white carbon, potter's clay, bentonite, precipitated calcium carbonate, attapulgite, talcum powder, kaolin, the mica.
2. fenpyroximate water dispersible granule according to claim 1, it is characterized in that: the preferred content of each component is: azoles mite ester 5-30%, auxiliary agent 10-30%, filler 30-70%: described auxiliary agent is meant dispersant and/or wetting agent, disintegrant, stabilizing agent, binding agent; Described filler is the one or more kinds of mixed fillers in white carbon, potter's clay, bentonite, precipitated calcium carbonate, attapulgite, talcum powder, kaolin, the mica.
3. water dispersible granules according to claim 1 and 2 is characterized in that: described azoles mite ester can be azoles mite ester and kill the mite king.
4. fenpyroximate water dispersible granule according to claim 1 and 2 is characterized in that: described dispersant is one or more mixed dispersants among sodium lignin sulfonate, potassium and ammonium salt, polyacrylic acid, sodium phosphate trimer, diffusion agent N O, dispersing agent MF, naphthalene sulfonate, rope uncle SOPA, the NNO.
5. water dispersible granules according to claim 1 and 2 is characterized in that: described wetting agent is that alkylnaphthalene sulfonate, tea are withered, Chinese honey locust, sldium lauryl sulfate, draw back in powder, penetrant t, penetrating agent JFC, the neopelex one or more and mix wetting agents.
6. obtain 2 described water dispersible granules according to claim 1, it is characterized in that: described binding agent is one or more hybrid adhesives in starch, gum Arabic, polyvinyl alcohol, polyethylene glycol ethers, dextrin, sodium sulphate, rosin, the methylcellulose.
7. water dispersible granules according to claim 1 and 2 is characterized in that: described disintegrant is one or more mixing disintegrants in ammonium sulfate, carboxymethyl cellulose, calcium chloride, bentonite, aluminium chloride, the urea.
8. water dispersible granules according to claim 1 and 2 is characterized in that: described stabilizing agent is one or more mixed stabilizers of tributyl phosphate, triphenyl phosphite, BHT.
9. water dispersible granules according to claim 1 and 2 is characterized in that: described filler or carrier are one or more the mixed fillers in white carbon, diatomite, talcum, kaolin, clay, the precipitated calcium carbonate.
CNA2007101952577A 2007-12-05 2007-12-05 Fenpyroximate water dispersible granule and preparation method thereof Pending CN101167456A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101953336A (en) * 2010-10-26 2011-01-26 江苏七洲绿色化工股份有限公司 Metribuzin water dispersible granules and preparation method thereof
CN101773115B (en) * 2010-01-28 2012-02-01 惠州市银农科技有限公司 Preparation method of pesticide water dispersible granules having fast disintegration property
CN101617660B (en) * 2009-08-01 2012-05-02 深圳诺普信农化股份有限公司 a pesticide composition
CN119278938A (en) * 2024-10-09 2025-01-10 中国农业大学 An emulsifiable microgranule for replacing pesticide droplet granulation, and its preparation method and application

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101617660B (en) * 2009-08-01 2012-05-02 深圳诺普信农化股份有限公司 a pesticide composition
CN101773115B (en) * 2010-01-28 2012-02-01 惠州市银农科技有限公司 Preparation method of pesticide water dispersible granules having fast disintegration property
CN101953336A (en) * 2010-10-26 2011-01-26 江苏七洲绿色化工股份有限公司 Metribuzin water dispersible granules and preparation method thereof
CN101953336B (en) * 2010-10-26 2012-11-21 江苏七洲绿色化工股份有限公司 Metribuzin water dispersible granules and preparation method thereof
CN119278938A (en) * 2024-10-09 2025-01-10 中国农业大学 An emulsifiable microgranule for replacing pesticide droplet granulation, and its preparation method and application
CN119278938B (en) * 2024-10-09 2025-11-21 中国农业大学 Emulsifiable granule for replacing pesticide fogdrop and preparation method and application thereof

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Open date: 20080430