CN101416620A - Triadimenol water dispersion granules and preparation method thereof - Google Patents

Abstract

The invention discloses a bactericide containing triadimenol, belonging to the bactericide technique in plant protecyion field. Composition of the invention comprises: 1-80% of triadimenol, 2-8% of humectant, 2-10% of dispersant, 2-8% of disintegrant, 0.1-6% of binder, and adding water to 100%. The components are proportionally mixed, ground into suspending agent after being uniformly stirred, and then made into water-dispersible granules after being sprayed and dried. The granules are applied to preventing and treating powdery mildew, stinking smut, false smut, rust disease and sigatoka of cereal crop plants.

Description

A kind of triadimenol water dispersion granules and preparation method thereof

Technical field

The present invention relates to-kind of disinfectant use in agriculture, being specifically related to a kind of active ingredient is water dispersible granules of Triadimenol and preparation method thereof.Be mainly used in powdery mildew, bunt, false smut, the rust of cereal crop, the control of sigatoka.

Background technology

At present, disinfectant use in agriculture is a lot, and Triadimenol is wherein a kind of, belongs to triazole bactericidal agent, has protection, treats and root out triple role, suppresses the biosynthesis of gibberellin and ergosterol and then influences cell division speed.Can pass through stem, leaf and absorb, stable transportation in cambium, but in aging, woody tissue the transporting instability.Be used to prevent and treat control with the powdery mildews of cereal, rust, bunt, sigatoka.

Water dispersible granules seems the agricultural chemicals novel formulation that phase early 1980s grows up; it is the novel form that on the basis of wetting powder and suspending agent, grows up; as everyone knows; because market competition is fierce more; particularly environmental protection consciousness is more and more stronger; requirement is under more and more tighter situation, and the exploitation environmental pollution is little, safer to the user, chemical property is more stable, the new product of the former medicine availability of more effective raising has become a kind of trend.

Wheat powdery mildew: be that China wheat belt threatens one of maximum disease, all can large tracts of land take place every year, and distributed pole extensively and extremely difficult control at present, continues in rising trend in some areas incidence.

Sigatoka: in banana producing region, China south generation being arranged all, is the topmost disease of banana, incidence of disease height, and the extent of injury is big, directly causes the serious underproduction of banana, and no commodity value has very big influence to plant, and at present, single agent product consumption is big, cost is high.

The bunt of wheat is generally to take place in winter wheat and spring wheat district, is worldwide important disease, once extensively takes place in China, owing to carry out control energetically, most of area is basic.In Henan, some areas such as Hebei, Shanxi, Shandong, Guizhou, disease has even the serious trend that takes place but in recent years.The inferior disease fringe portion of mainly causing harm after wheat is injured, is that full fringe wheat becomes infected seed mostly, and the small part fringe becomes infected seed for the part wheat.The strong grain of infected seed is short fertile, just is dirty-green, becomes canescence at last, and the outside is surrounded by one deck taupe film, and the inside is full of black powder, and has a fish like smell, so claim bunt.

Summary of the invention

The objective of the invention is to propose low, an easy packing of use cost, storing conveniently, to the producer and user's safety, environmental pollution is little, has improved triadimenol water dispersion granules of Triadimenol utilization rate of active components and preparation method thereof simultaneously again.

Another purpose of the present invention provide a kind of be used for cereal crop powdery mildew, rice blast,, the good preparation of control efficiency such as the leaf spot on the rust, fruit tree, anthracnose, scab.

The present invention is achieved by the following technical solutions:

A kind of water dispersible granules that contains Triadimenol, it comprises following component: Triadimenol 1%～80%, wetting agent 2%～8%, dispersant 2%～10%, disintegrant 2%～8%, binding agent 0.1%～6%, filler surplus.

Wherein, described wetting agent is selected from alkyl sulfate, alkylnaphthalene sulfonate, fatty alcohol-polyoxyethylene ether, aliphatic alcohol sulfate, benzene sulfonamide acid alkali metal salt, dialkyl group succinate sulfonate sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, draws back the hydrolysate of powder, wetting and penetrating agent F, spaonin powder, sulfite paper slurries, animal waste, in the Sodium Alginate one or more, uses that total consumption is no more than 8% when multiple.

Described dispersant is selected from one or more in lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, the fatty acid glyceride APEO, uses that total consumption is no more than 10% when multiple.

Described disintegrant is selected from ammonium sulfate, aluminium chloride, calcium chloride, citric acid, magnesium chloride, succinic acid, carbonic hydroammonium, urea, the disintegrant one or more and uses that total consumption is no more than 8% when multiple.

Described binding agent is selected from polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, white dextrin, gum Arabic, soybean protein, gelatine, sodium sulphate, gypsum, rosin, paraffin, carboxymethyl cellulose, the sodium silicate one or more and uses that total consumption is no more than 6% when multiple.

Described carrier is selected from one or more in kaolin, potter's clay, attapulgite, talcum powder, mica, diatomite, white carbon, starch, bentonite, the fine particle calcium carbonate.

Triadimenol water dispersion granules of the present invention is to produce by following steps:

A), choose raw material, the former medicine of Triadimenol, wetting agent, dispersant, disintegrant, filler are mixed according to the prescription of triadimenol water dispersion granules;

B), be medium with water, in sand mill,, make suspending agent with above mixture porphyrize;

C), add binding agent, adjust the concentration and the viscosity of suspending agent, the slurry of the usefulness that obtains spraying;

D), slurry quantitatively sent to carries out atomized drying in the drying tower, vapo(u)rizing temperature is controlled at 50 ℃～70 ℃.

E), after being sieved, dried shot-like particle promptly obtains triadimenol water dispersion granules.

The technology of triadimenol water dispersion granules of the present invention and preparation method thereof, the key technical indexes of product has:

Triadimenol content 1%～80%

Moisture≤2.5%

PH value 6.0～8.0

Suspensibility 〉=75.0%

Moistening time≤90S

Examination sieve test (by 75 μ m testing sieves) 〉=98%

Particle size range (225 μ m～800 μ m) 〉=98%

Lasting foaming characteristic (behind the 1min)≤15mL

Dispersed 〉=85%

Heat storage stability is qualified

The invention has the advantages that: (1) does not have dust from flying, to operator's safety, has reduced environmental pollution; (2) compare with suspending agent with wetting powder, the active constituent content height, the product relative density is big, volume is little, brought very big economic benefit and social benefit to packing, storage, transportation; (3) physical and chemical stability is good; (4) disintegration rate is fast, good dispersion, and good fluidity has strengthened the penetrating ability to phytopathogen, can give full play to drug effect, has improved the former medicine availability of Triadimenol.

Specific embodiment

The present invention describes with following embodiment, but not as limitation of the present invention.

Embodiment 1 70% triadimenol water dispersion granules

Take by weighing 70 parts of the former medicines of Triadimenol, 8 parts of two sodium naphthasulfonates, 5 parts of spaonin powders, 3 parts in ammonium sulfate, the kaolin surplus, after it is mixed, add levigately, make suspending agent through sand mill, adding 2 parts of polyvinyl alcohol mixes evenly, insert then and carry out atomized drying in the drying tower, granulation then, sieve 70% triadimenol water dispersion granules.With 3500 times of sprayings of medicament dilution of the present invention, the control wheat powdery mildew, control efficiency is 88.01%～90.89% after 10 days.And 1250 times of sprayings of 250 grams per liter Triadimenol missible oil dilution, the control wheat powdery mildew, preventive effect is 81.35%～84.88% after 10 days.

By test as can be known, 70% triadimenol water dispersion granules is compared with contrast medicament 250 grams per liter Triadimenol missible oil, under identical active ingredient dosage, the control efficiency of wheat powdery mildew obviously is better than contrasting medicament.

Embodiment 2 50% triadimenol water dispersion granules

Take by weighing 50 parts of the former medicines of Triadimenol, 5 parts of sodium lignin sulfonates, 7 parts of neopelexes, 2.5 parts of citric acids, 10 parts of starch, 10 parts in diatomite, the kaolin surplus, after it is mixed, add levigately, make suspending agent through sand mill, adding 1.5 parts of polyethylene glycol mixes, insert then and carry out atomized drying in the drying tower, granulation then, sieve 50% triadimenol water dispersion granules.With 1500 times of sprayings of medicament dilution of the present invention, prevent and treat sigatoka, control efficiency is 89.08%-93.11% after 10 days.Get 1500 times of sprayings of 50% Triadimenol missible oil dilution, the control efficiency to sigatoka after 10 days is 85.63%～87.47%.

By test as can be known, 50% triadimenol water dispersion granules is compared with contrast medicament 50% Triadimenol missible oil, under identical active ingredient dosage, the control efficiency of sigatoka obviously is better than contrasting medicament.

Embodiment 3 45% triadimenol water dispersion granules

Take by weighing 45 parts in the former powder of Triadimenol, 4 parts of calcium dodecyl benzene sulfonates, 4 parts of sodium lignin sulfonates, 2.5 parts in calcium chloride, 15 parts of starch, 10 parts of bentonites, the kaolin surplus, after it is mixed, add levigately, make suspending agent through sand mill, adding 1 part of white dextrin mixes, insert then and carry out atomized drying in the drying tower, granulation then, sieve 45% triadimenol water dispersion granules.With 1500 times of sprayings of medicament dilution of the present invention, prevent and treat the bunt of wheat, control efficiency is 87.23%-90.45% after 10 days.Get 1500 times of sprayings of 45% Triadimenol microemulsion dilution, the control efficiency to the bunt of wheat after 10 days is 86.74%～90.85%.

By test as can be known, 45% triadimenol water dispersion granules is compared with contrast medicament 45% Triadimenol microemulsion, and is under identical active ingredient dosage, suitable with the contrast medicament to the preventive effect of the bunt of wheat.

Embodiment 4 60% triadimenol water dispersion granules

60 parts of Triadimenols

6 parts of wetting agents

6 parts of anionic dispersing agents

4 parts of disintegrants

3 parts of binding agents

The filler surplus

Described wetting agent comprises: alkylphenol polyoxyethylene, neopelex, fatty alcohol-polyoxyethylene ether, alkyl benzyl dimethyl ammonium chloride.

Described anionic dispersing agents comprises: polyoxyethylene polyoxypropylene block copolymer, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt.

Described disintegrant is selected from ammonium sulfate, citric acid, calcium chloride, magnesium chloride, urea.

Described binding agent is selected from polyvinyl alcohol, white dextrin, gum Arabic, sodium sulphate, gypsum, sodium silicate.

Described filler is selected from kaolin, diatomite, starch.

With Triadimenol, natural wetting agent, anionic dispersing agents, disintegrant, filler in water, grind together to the particle diameter that needs, add binding agent again, adjust its concentration and viscosity, the slurry of the usefulness that obtains spraying; Slurry quantitatively sent to carry out atomized drying in the drying tower, adopt pressurized nozzles during spraying, and dry maintaining the temperature at about 50 ℃, thereby make 60% triadimenol water dispersion granules.

Embodiment 5 30% triadimenol water dispersion granules

30 parts of Triadimenols

6 parts of anion wetting agents

6 parts of non-ionic dispersing agents

4 parts of disintegrants

3 parts of binding agents

The filler surplus

Described anion wetting agent comprises: aliphatic alcohol sulfate, benzene sulfonamide acid alkali metal salt, dialkyl group succinate sulfonate sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, Negel.

Described non-ionic dispersing agent comprises: alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.

Described disintegrant is selected from succinic acid, carbonic hydroammonium, calcium chloride, magnesium chloride, urea.

Described binding agent is selected from polyethylene glycol, polyvinylpyrrolidone, soybean protein, gelatine, rosin, carboxymethyl cellulose.

Described filler is selected from kaolin, white carbon, starch, bentonite, fine particle calcium carbonate.

With Triadimenol, anion wetting agent, non-ionic dispersing agent, disintegrant, filler in water, grind together to the particle diameter that needs, add binding agent again, adjust its concentration and viscosity, the slurry of the usefulness that obtains spraying; Slurry quantitatively sent to carry out atomized drying in the drying tower, adopt pressurized nozzles during spraying, and dry maintaining the temperature at about 60 ℃, thereby make 30% triadimenol water dispersion granules.

Embodiment 6 35% triadimenol water dispersion granules

35 parts of Triadimenols

7 parts of anion wetting agents

5 parts of non-ionic dispersing agents

3 parts of disintegrants

4 parts of binding agents

The filler surplus

Its preparation process is with embodiment 5.

Embodiment 7 25% triadimenol water dispersion granules

25 parts of Triadimenols

4 parts of anion wetting agents

4 parts of non-ionic dispersing agents

2 parts of disintegrants

2 parts of binding agents

The filler surplus

Its preparation process is with embodiment 5.

Embodiment 8 20% triadimenol water dispersion granules

20 parts of Triadimenols

3 parts of anion wetting agents

6 parts of non-ionic dispersing agents

2 parts of disintegrants

1.5 parts of binding agents

The filler surplus

Its preparation process is with embodiment 5.

Embodiment 9 65% triadimenol water dispersion granules

65 parts of Triadimenols

6 parts of anion wetting agents

7 parts of non-ionic dispersing agents

4 parts of disintegrants

2.5 parts of binding agents

The filler surplus

Its preparation process is with embodiment 4.

Embodiment 10 55% triadimenol water dispersion granules

55 parts of Triadimenols

4 parts of anion wetting agents

7 parts of non-ionic dispersing agents

3.5 parts of disintegrants

2.5 parts of binding agents

The filler surplus

Its preparation process is with embodiment 4.

Triadimenol water dispersion granules of the present invention is as long as technical indicator is as follows:

Triadimenol water dispersion granules of the present invention, its implementation result show that this product has Well dispersed, disintegration rate is fast, disintegration time is short, heat storage stability is good, the present invention exists With other Triadimenol formulations, under identical active ingredient dosage, compare, to little in the production application The prevention effect of wheat powdery mildew, sigatoka, the bunt of wheat quite or be higher than the contrast medicine Agent, and preventive effect do not have poisoning all more than 87% to crops, to user's safety, to ring Environment pollution is little. So research and extension tool of the present invention is of great significance.

Claims (3)

1 ,-and kind of triadimenol water dispersion granules, it is characterized in that this agriculture chemicals fungicide is shaped as rule or irregular coccoid, its agriculture chemicals fungicide composition is as follows by weight percentage:

Triadimenol 1%～80%

Wetting agent 2%～8%

Dispersant 2%～10%

Disintegrant 2%～8%

Binding agent 0.1%～6%

Filler adds to 100%.

2, triadimenol water dispersion granules according to claim 1 is characterized in that: the preparation method of triadimenol water dispersion granules provided by the present invention has following steps:

A), choose raw material, the former medicine of Triadimenol, wetting agent, dispersant, disintegrant, filler are mixed according to the prescription of triadimenol water dispersion granules;

B), be medium with water, in sand mill,, make suspending agent with above mixture porphyrize;

C), add binding agent, adjust the concentration and the viscosity of suspending agent, the slurry of the usefulness that obtains spraying;

D), slurry quantitatively sent to carries out atomized drying in the drying tower, vapo(u)rizing temperature is controlled at 50 ℃～70 ℃.

E), after being sieved, dried shot-like particle promptly obtains triadimenol water dispersion granules.

3, triadimenol water dispersion granules according to claim 1 and 2 is used for powdery mildew, bunt, false smut, the rust of cereal crop, the control of sigatoka.