CN104839195A - Pesticide sustained release granule containing thiamethoxam and preparation method thereof - Google Patents
Pesticide sustained release granule containing thiamethoxam and preparation method thereof Download PDFInfo
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- CN104839195A CN104839195A CN201510232973.2A CN201510232973A CN104839195A CN 104839195 A CN104839195 A CN 104839195A CN 201510232973 A CN201510232973 A CN 201510232973A CN 104839195 A CN104839195 A CN 104839195A
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Abstract
The invention discloses a pesticide sustained release granule containing thiamethoxam and a preparation method thereof, wherein the pesticide sustained release granule is prepared from the following raw materials in parts by weight: thiamethoxam, anhydrous calcium sulfate, kaolin, other carriers, membrane material and white carbon black, and the membrane material is calculated in parts by mass and comprises the following components: 0.1-15 percent of displacer, 5-60 percent of curing agent, 0.01-5 percent of membrane filter agent, 0.2-5 percent of passivation material, and the balance of cross-linking agent, wherein the structure of displacer is similar with that of the thiamethoxam, and the pesticide sustained release granule is sequentially prepared according to the following steps of mixing, prilling, spraying membrane firstly, spraying membrane secondly, protecting granule, toning, checking and packaging, and the effective constituent of the pesticide sustained release granule is similar with that of the displacer, gradually penetrates outward, and the sustained release period is long, the pesticide effect is stable, the preparation method is simple and the cost is low.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of pesticide slow-release particle containing Diacloden and preparation method thereof.
Background technology
Diacloden is a kind of second generation nicotinoids high-efficient low toxicity insecticide of brand new, has stomach toxicity, tags and systemic activity to insect, for foliar spray and soil root irrigation.By crops interior suction rapidly after dispenser, and be transmitted to each position of plant, to sucking pest as aphid, plant hopper, leafhopper, aleyrodid etc. have good preventive effect.
Sustained-release pesticides can discharge active ingredient gradually along with the time, thus reduces labor cost, saves time, and reduces pesticide dosage, is subject to market favor.Current sustained-release pesticides one is with the coated pesticide active ingredient of resin material, form microcapsule structure, but cyst wall is expensive, thickness is wayward, complex process, causes pesticide cost high, and drug effect is unstable.Another kind is coated by carrying out release membranes after active ingredient and filler granulation again, but the equipment manufacturing cost that this method needs is high, and energy resource consumption is large, and cost is high.
Summary of the invention
For above-mentioned problems of the prior art, the invention provides a kind of pesticide slow-release particle containing Diacloden and preparation method thereof, active ingredient in pesticide slow-release particle of the present invention and displacer similar compatibility, gradually to exosmosis, the slowly-releasing cycle is long, efficacy stability, preparation method is simple, and cost is low.
For achieving the above object, the invention provides following technical scheme:
Containing a pesticide slow-release particle for Diacloden, according to weight parts, comprise the raw material of following parts by weight: Diacloden 0.2-10 part, dead plaster 5-50 part, kaolin 5-30 part, other carriers 0-70 part, coating materials 0.3-15 part and white carbon 0.1-2 part;
Other carriers described are quartz sand, attapulgite, bentonite, the one or more combination had in H 2 O calcium sulphate powder, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, inorganic fertilizer and fertilizer;
Described coating materials, according to mass fraction meter, comprise following component: displacer 0.1-15%, curing agent 5-60%, filter permeable membrane agent 0.01-5% and passivation 0.2-5%, surplus is crosslinking agent, described passivation is the amino-acid chelate of magnesium, the agent of described filter permeable membrane is modification pyrrolidone polymer, sodium carboxymethylcellulose, arabic acid or polyvinyl butyral resin, and described displacer structural formula is as follows:
Further, according to weight parts, comprise the raw material of following parts by weight: Diacloden 1 part, anhydrous slufuric acid Ca45 part, kaolin 35 parts, 5 parts, other carriers, coating materials 1.5 parts and white carbon 0.9 part.
Further, described coating materials, according to mass fraction meter, comprises following component: displacer 5%, curing agent 50%, filter permeable membrane agent 0.8% and passivation 2%, surplus is crosslinking agent.
Further, the agent of described filter permeable membrane is the polymer of ethene pyrrole network alkane ketone-chitosan crosslinked.
Further, described curing agent is poly-hydrocarbon compound, and molecular weight is 1000-10000.
Further, described crosslinking agent is formaldehyde, glutaraldehyde or titanium dioxide.
Separately, the present invention also provides a kind of preparation method of the pesticide slow-release particle containing Diacloden as above, comprises the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are mixed, obtain granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added and spray in tank, carry out spray film, open negative pressure system simultaneously to described granule materials surface, mixing, obtains monofilm material;
(3) the filter permeable membrane agent of melting and passivation are added and spray in tank, to described monofilm material spray film, mixing 1-20min, obtains two film material;
(4) in described pair of film material, add white carbon, mixing, obtain protecting grain material;
(5) described guarantor's grain material is detected, packaging, namely obtain the described pesticide slow-release particle containing Diacloden.
Further, described preparation method also comprises step (6), in guarantor's grain material that step (4) obtains, spray into colourity conditioning agent, mixing 4min, described step (6) is located between described step (4) and step (5).
Further, described in spray tank shower nozzle aperture be 0.01-2mm, spray pressure is 0.1-0.9at, and wherein, at is the unit of technical atmosphere.
Beneficial effect of the present invention is as follows:
1, the two-layer release membranes of Diacloden outer cladding, the agent of filter permeable membrane is selected in outer mould material, for slow-releasing granules provides one deck barrier, oxygen atom in the agent of filter permeable membrane has hydrophily, and in the environment having water, the strand of filter permeable membrane agent stretches and produces space, for Diacloden stripping, hydrone enters in outer membrane, produces gravitation, avoid Diacloden to be cured to the hydrophilic group in Diacloden; Select the displacer similar to Diacloden structure in internal layer coating materials, under the effect of hydrone, Diacloden is by displacer stripping gradually, and dissolution rate is slow, extends the slowly-releasing cycle, efficacy stability;
2, the intermolecular forces of crosslinking agent balance curing agent, displacer, the agent of filter permeable membrane, makes its active force appropriate, adjustable, forms the film that one deck is crosslinked, the degree of cross linking is excessive, and Diacloden is blocked in film, can not discharge, the degree of cross linking is too small, and Diacloden is fast released, and duration of efficacy is short;
3, the preparation method of slow-releasing granules of the present invention is simple, and by regulating shower nozzle aperture and spray pressure, control the thickness of particle surface film, simply directly, the thickness of film is even.
Embodiment
Technical scheme of the present invention is understood better in order to make those skilled in the art; clear, complete description is carried out to technical scheme of the present invention below; based on the embodiment in the application; other roughly the same embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the application's protection.
Embodiment one:
Containing a pesticide slow-release particle for Diacloden, according to weight parts, comprise the raw material of following parts by weight: Diacloden 0.2 part, dead plaster 5 parts, kaolin 5 parts, coating materials 0.3 part, white carbon 0.1 part and colouring agent 0.1 part; Described coating materials, according to mass fraction meter, comprise following component: displacer 0.1%, curing agent 5%, filter permeable membrane agent 0.01% and passivation 0.2%, surplus is crosslinking agent, described curing agent is polyvinyl paraffin wax, and molecular weight is 1000, and the agent of described filter permeable membrane is polyvinyl butyral resin, described crosslinking agent is glutaraldehyde, and described passivation is the amino-acid chelate of magnesium.The intermolecular forces of crosslinking agent balance curing agent, displacer, the agent of filter permeable membrane, makes its active force appropriate, adjustable, forms the film that one deck is crosslinked, the degree of cross linking is excessive, and Diacloden is blocked in film, can not discharge, the degree of cross linking is too small, and Diacloden is fast released, and duration of efficacy is short.
Described displacer structural formula is as follows:
Select the displacer similar to Diacloden structure in coating materials, Diacloden can pass through displacer stripping gradually, and the stripping of Diacloden is slow, extends the slowly-releasing cycle, efficacy stability.
A preparation method for pesticide slow-release particle containing Diacloden described above, comprises the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are put into drum mixer, mixing 3min, obtains granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added spray in tank, spray film is carried out to described granule materials surface, the described shower nozzle aperture spraying tank is 0.01mm, spray pressure 0.9at, in blender, hypertonia causes danger, open negative pressure system in spray membrane process, mixing, obtains monofilm material simultaneously;
(3) the filter permeable membrane agent of melting and passivation are added spray in tank, to described monofilm material spray film, closedown negative pressure system after spray film completes, mixing 1min, obtains two film material;
(4) in order to avoid particle after spray film is inter-adhesive, in described pair of film material, add white carbon, mixing, obtain protecting grain material;
(6) in described guarantor's grain material, spray into colourity conditioning agent, mixing 4min, obtains material of mixing colours;
(5) the toning material obtained after mixing colours to described guarantor's grain material detects, packaging, namely obtains the described pesticide slow-release particle containing Diacloden.
The two-layer release membranes of Diacloden outer cladding, the agent of filter permeable membrane is selected in outer mould material, for slow-releasing granules provides one deck barrier, oxygen atom in the agent of filter permeable membrane has hydrophily, and in the environment having water, the strand of filter permeable membrane agent stretches and produces space, for Diacloden stripping, hydrone enters in outer membrane, produces gravitation, avoid Diacloden to be cured to the hydrophilic group in Diacloden; Select the displacer similar to Diacloden structure in internal layer coating materials, under the effect of hydrone, Diacloden is by displacer stripping gradually, and dissolution rate is slow, extends the slowly-releasing cycle, efficacy stability.
The preparation method of slow-releasing granules of the present invention is simple, and by regulating shower nozzle aperture and spray pressure, control the thickness of particle surface film, simply directly, the thickness of film is even.
Embodiment two:
Containing a pesticide slow-release particle for Diacloden, according to weight parts, comprise the raw material of following parts by weight: Diacloden 4 parts, dead plaster 70 parts, kaolin 70 parts, other carrier 18 parts, coating materials 4 parts, white carbon 1.2 parts and colouring agent 3 parts; Described coating materials, according to mass fraction meter, comprise following component: displacer 7%, curing agent 30%, filter permeable membrane agent 1.3% and passivation 2.5%, surplus is crosslinking agent, described curing agent is poly(ether-urethane), and molecular weight is 3000, and described crosslinking agent is formaldehyde, the agent of described filter permeable membrane is the polymer of ethene pyrrole network alkane ketone-chitosan crosslinked, and described passivation is the amino-acid chelate of magnesium.The intermolecular forces of crosslinking agent balance curing agent, displacer, the agent of filter permeable membrane, makes its active force appropriate, adjustable, forms the film that one deck is crosslinked, the degree of cross linking is excessive, and Diacloden is blocked in film, can not discharge, the degree of cross linking is too small, and Diacloden is fast released, and duration of efficacy is short.
Described displacer structural formula is as follows:
Select the displacer similar to Diacloden structure in coating materials, Diacloden can pass through displacer stripping gradually, and the stripping of Diacloden is slow, extends the slowly-releasing cycle, efficacy stability.
A preparation method for pesticide slow-release particle containing Diacloden described above, comprises the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are put into drum mixer, mixing 5min, obtains granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added spray in tank, spray film is carried out to described granule materials surface, the described shower nozzle aperture spraying tank is 0.5mm, spray pressure 0.5at, in blender, hypertonia causes danger, open negative pressure system in spray membrane process, mixing, obtains monofilm material simultaneously;
(3) the filter permeable membrane agent of melting and passivation are added spray in tank, to described monofilm material spray film, closedown negative pressure system after spray film completes, mixing 5min, obtains two film material;
(4) in order to avoid particle after spray film is inter-adhesive, in described pair of film material, add white carbon, mixing, obtain protecting grain material;
(6) in described guarantor's grain material, spray into colourity conditioning agent, mixing 4min, obtains material of mixing colours;
(5) the toning material obtained after mixing colours to described guarantor's grain material detects, packaging, namely obtains the described pesticide slow-release particle containing Diacloden.
The two-layer release membranes of Diacloden outer cladding, the agent of filter permeable membrane is selected in outer mould material, for slow-releasing granules provides one deck barrier, oxygen atom in the agent of filter permeable membrane has hydrophily, and in the environment having water, the strand of filter permeable membrane agent stretches and produces space, for Diacloden stripping, hydrone enters in outer membrane, produces gravitation, avoid Diacloden to be cured to the hydrophilic group in Diacloden; Select the displacer similar to Diacloden structure in internal layer coating materials, under the effect of hydrone, Diacloden is by displacer stripping gradually, and dissolution rate is slow, extends the slowly-releasing cycle, efficacy stability.
The preparation method of slow-releasing granules of the present invention is simple, and by regulating shower nozzle aperture and spray pressure, control the thickness of particle surface film, simply directly, the thickness of film is even.
Embodiment three:
Containing a pesticide slow-release particle for Diacloden, according to weight parts, comprise the raw material of following parts by weight: Diacloden 1 part, anhydrous slufuric acid Ca45 part, kaolin 35 parts, 5 parts, other carriers, coating materials 1.5 parts, white carbon 0.9 part and colouring agent 1.5 parts; Described coating materials, according to mass fraction meter, comprise following component: displacer 5%, curing agent 50%, filter permeable membrane agent 0.8% and passivation 2%, surplus is crosslinking agent, described curing agent is chlorinated paraffin wax, and molecular weight is 1300, and the agent of described filter permeable membrane is sodium carboxymethylcellulose, described crosslinking agent is titanium dioxide, and described passivation is the amino-acid chelate of magnesium.Other carriers described are bentonite, have H 2 O calcium sulphate powder, nitrogenous fertilizer, ammonium phosphate, vinasse, and corresponding mass ratio is 3:1:1:10.The intermolecular forces of crosslinking agent balance curing agent, displacer, the agent of filter permeable membrane, makes its active force appropriate, adjustable, forms the film that one deck is crosslinked, the degree of cross linking is excessive, and Diacloden is blocked in film, can not discharge, the degree of cross linking is too small, and Diacloden is fast released, and duration of efficacy is short.
Described displacer structural formula is as follows:
Select the displacer similar to Diacloden structure in coating materials, Diacloden can pass through displacer stripping gradually, and the stripping of Diacloden is slow, extends the slowly-releasing cycle, efficacy stability.
A preparation method for pesticide slow-release particle containing Diacloden described above, comprises the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are put into drum mixer, mixing 5min, obtains granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added spray in tank, spray film is carried out to described granule materials surface, the described shower nozzle aperture spraying tank is 1mm, spray pressure 0.6at, in blender, hypertonia causes danger, open negative pressure system in spray membrane process, mixing, obtains monofilm material simultaneously;
(3) the filter permeable membrane agent of melting and passivation are added spray in tank, to described monofilm material spray film, closedown negative pressure system after spray film completes, mixing 10min, obtains two film material;
(4) in order to avoid particle after spray film is inter-adhesive, in described pair of film material, add white carbon, mixing 3min, obtain protecting grain material;
(6) in described guarantor's grain material, spray into colourity conditioning agent, mixing 4min, obtains material of mixing colours;
(5) the toning material obtained after mixing colours to described guarantor's grain material detects, packaging, namely obtains the described pesticide slow-release particle containing Diacloden.
The two-layer release membranes of Diacloden outer cladding, the agent of filter permeable membrane is selected in outer mould material, for slow-releasing granules provides one deck barrier, oxygen atom in the agent of filter permeable membrane has hydrophily, and in the environment having water, the strand of filter permeable membrane agent stretches and produces space, for Diacloden stripping, hydrone enters in outer membrane, produces gravitation, avoid Diacloden to be cured to the hydrophilic group in Diacloden; Select the displacer similar to Diacloden structure in internal layer coating materials, under the effect of hydrone, Diacloden is by displacer stripping gradually, and dissolution rate is slow, extends the slowly-releasing cycle, efficacy stability.
The preparation method of slow-releasing granules of the present invention is simple, and by regulating shower nozzle aperture and spray pressure, control the thickness of particle surface film, simply directly, the thickness of film is even.
Embodiment four:
Containing a pesticide slow-release particle for Diacloden, according to weight parts, comprise the raw material of following parts by weight: Diacloden 10 parts, dead plaster 200 parts, kaolin 200 parts, 70 parts, other carriers, coating materials 15 parts, white carbon 0.1-2 part and colouring agent 3 parts; Described coating materials, according to mass fraction meter, comprise following component: displacer 5%, curing agent 50%, filter permeable membrane agent 0.8% and passivation 2%, surplus is crosslinking agent, described curing agent is carboxyl vinyl chloride-vinyl acetate resin 10000, the agent of described filter permeable membrane is arabic acid, and described crosslinking agent is glutaraldehyde, and described passivation is the amino-acid chelate of magnesium.Other carriers described are quartz sand, bentonite, have the combination of H 2 O calcium sulphate powder, potassium chloride fertilizer, and corresponding mass ratio is 10:2:1:1.The intermolecular forces of crosslinking agent balance curing agent, displacer, the agent of filter permeable membrane, makes its active force appropriate, adjustable, forms the film that one deck is crosslinked, the degree of cross linking is excessive, and Diacloden is blocked in film, can not discharge, the degree of cross linking is too small, and Diacloden is fast released, and duration of efficacy is short.
Described displacer structural formula is as follows:
Select the displacer similar to Diacloden structure in coating materials, Diacloden can pass through displacer stripping gradually, and the stripping of Diacloden is slow, extends the slowly-releasing cycle, efficacy stability.
A preparation method for pesticide slow-release particle containing Diacloden described above, comprises the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are put into drum mixer, mixing 5min, obtains granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added spray in tank, spray film is carried out to described granule materials surface, the described shower nozzle aperture spraying tank is 2mm, spray pressure 0.5at, in blender, hypertonia causes danger, open negative pressure system in spray membrane process, mixing, obtains monofilm material simultaneously;
(3) the filter permeable membrane agent of melting and passivation are added spray in tank, to described monofilm material spray film, closedown negative pressure system after spray film completes, mixing 20min, obtains two film material;
(4) in order to avoid particle after spray film is inter-adhesive, in described pair of film material, add white carbon, mixing 3min, obtain protecting grain material;
(6) in described guarantor's grain material, spray into colourity conditioning agent, mixing 4min, obtains material of mixing colours;
(5) the toning material obtained after mixing colours to described guarantor's grain material detects, packaging, namely obtains the described pesticide slow-release particle containing Diacloden.
The two-layer release membranes of Diacloden outer cladding, the agent of filter permeable membrane is selected in outer mould material, for slow-releasing granules provides one deck barrier, oxygen atom in the agent of filter permeable membrane has hydrophily, and in the environment having water, the strand of filter permeable membrane agent stretches and produces space, for Diacloden stripping, hydrone enters in outer membrane, produces gravitation, avoid Diacloden to be cured to the hydrophilic group in Diacloden; Select the displacer similar to Diacloden structure in internal layer coating materials, under the effect of hydrone, Diacloden is by displacer stripping gradually, and dissolution rate is slow, extends the slowly-releasing cycle, efficacy stability.
The preparation method of slow-releasing granules of the present invention is simple, and by regulating shower nozzle aperture and spray pressure, control the thickness of particle surface film, simply directly, the thickness of film is even.
Pesticide granules is obtained according to the formula described in above-described embodiment one to four and preparation method, then pesticide granules is placed in respectively the neutrality of 10 times amount, faintly acid and alkalescent water, the soil regime in Reality simulation crops field, the concentration of Diacloden in water is detected every 1 month, described neutral water refers to the water of pH=7, described slightly acidic water refers to the water regulating the pH=6 obtained with acetic acid, and described alkalescent water refers to the water regulating the pH=8 obtained with triethylamine, and result is as following table 1-3:
The concentration of table 1 pesticide slow-release particle of the present invention in neutral water
| Detection time | Embodiment one | Embodiment two | Embodiment three | Embodiment four |
| 1 day (m/m, %) | 0.01 | 0.01 | 0.01 | 0.02 |
| 1 month (m/m, %) | 0.03 | 0.03 | 0.02 | 0.03 |
| 2 months (m/m, %) | 0.07 | 0.05 | 0.04 | 0.06 |
| 3 months (m/m, %) | 0.10 | 0.08 | 0.07 | 0.10 |
| 4 months (m/m, %) | 0.14 | 0.10 | 0.10 | 0.15 |
The concentration of table 2 pesticide slow-release particle of the present invention in slightly acidic water
| Detection time | Embodiment one | Embodiment two | Embodiment three | Embodiment four |
| 1 day (m/m, %) | 0.01 | 0.01 | 0.01 | 0.01 |
| 1 month (m/m, %) | 0.02 | 0.03 | 0.03 | 0.03 |
| 2 months (m/m, %) | 0.05 | 0.05 | 0.05 | 0.06 |
| 3 months (m/m, %) | 0.09 | 0.07 | 0.08 | 0.09 |
| 4 months (m/m, %) | 0.15 | 0.11 | 0.11 | 0.14 |
The concentration of table 3 pesticide slow-release particle of the present invention in alkalescent water
| Detection time | Embodiment one | Embodiment two | Embodiment three | Embodiment four |
| 1 day (m/m, %) | 0.01 | 0.01 | 0.01 | 0.01 |
| 1 month (m/m, %) | 0.03 | 0.03 | 0.04 | 0.02 |
| 2 months (m/m, %) | 0.06 | 0.05 | 0.06 | 0.05 |
| 3 months (m/m, %) | 0.08 | 0.08 | 0.08 | 0.07 |
| 4 months (m/m, %) | 0.12 | 0.10 | 0.12 | 0.11 |
From table 1-3, the pesticide slow-release particle of embodiments of the invention one to four all can slowly and uniformly discharge in neutrality, faintly acid, alkalescent water, sustainable at least 4 months of drug effect, especially embodiment two and embodiment three, the burst size of active ingredient is more steady, effect is more stable, illustrates that pesticide slow-release particle of the present invention is applicable to different soil, and lasting medicine is stablized.
In addition, be to be understood that, although this specification is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (9)
1. the pesticide slow-release particle containing Diacloden, it is characterized in that, according to weight parts, comprise the raw material of following parts by weight: Diacloden 0.2-10 part, dead plaster 5-50 part, kaolin 5-30 part, other carriers 0-70 part, coating materials 0.3-15 part and white carbon 0.1-2 part;
Other carriers described are quartz sand, attapulgite, bentonite, the one or more combination had in H 2 O calcium sulphate powder, nitrogenous fertilizer, potash fertilizer, phosphate fertilizer, inorganic fertilizer and fertilizer;
Described coating materials, according to mass fraction meter, comprise following component: displacer 0.1-15%, curing agent 5-60%, filter permeable membrane agent 0.01-5% and passivation 0.2-5%, surplus is crosslinking agent, described passivation is the amino-acid chelate of magnesium, the agent of described filter permeable membrane is modification pyrrolidone polymer, sodium carboxymethylcellulose, arabic acid or polyvinyl butyral resin, and described displacer structural formula is as follows:
2. the pesticide slow-release particle containing Diacloden according to claim 1, it is characterized in that, according to weight parts, comprise the raw material of following parts by weight: Diacloden 1 part, anhydrous slufuric acid Ca45 part, kaolin 35 parts, 5 parts, other carriers, coating materials 1.5 parts and white carbon 0.9 part.
3. the pesticide slow-release particle containing Diacloden according to claim 2, is characterized in that, described coating materials, according to mass fraction meter, comprises following component: displacer 5%, curing agent 50%, filter permeable membrane agent 0.8% and passivation 2%, surplus is crosslinking agent.
4. the pesticide slow-release particle containing Diacloden according to claim 3, is characterized in that, the agent of described filter permeable membrane is the polymer of ethene pyrrole network alkane ketone-chitosan crosslinked.
5. the pesticide slow-release particle containing Diacloden according to claim 4, is characterized in that, described curing agent is poly-hydrocarbon compound, and molecular weight is 1000-10000.
6., according to claim 5 containing the pesticide slow-release particle of Diacloden, it is characterized in that, described crosslinking agent is formaldehyde, glutaraldehyde or titanium dioxide.
7. a preparation method for the pesticide slow-release particle containing Diacloden as described in as arbitrary in claim 1-6, is characterized in that, comprise the following steps:
(1) Diacloden, dead plaster, kaolin and other carriers are mixed, obtain granule materials;
(2) displacer of melting, crosslinking agent and curing agent are added and spray in tank, carry out spray film, open negative pressure system simultaneously to described granule materials surface, mixing, obtains monofilm material;
(3) the filter permeable membrane agent of melting and passivation are added and spray in tank, to described monofilm material spray film, mixing 1-20min, obtains two film material;
(4) in described pair of film material, add white carbon, mixing, obtain protecting grain material;
(5) described guarantor's grain material is detected, packaging, namely obtain the described pesticide slow-release particle containing Diacloden.
8. according to claim 7 containing the preparation method of the pesticide slow-release particle of Diacloden, it is characterized in that, described preparation method also comprises step (6), colourity conditioning agent is sprayed in guarantor's grain material that step (4) obtains, mixing 4min, described step (6) is located between described step (4) and step (5).
9., according to claim 8 containing the preparation method of pesticide slow-release particle of Diacloden, it is characterized in that, described in spray tank shower nozzle aperture be 0.01-2mm, spray pressure is 0.1-0.9at, and wherein, at is the unit of technical atmosphere.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105248445A (en) * | 2015-11-16 | 2016-01-20 | 河北德瑞化工有限公司 | Slow-release thiamethoxam water dispersible granule and preparing method thereof |
| CN108142195A (en) * | 2017-12-29 | 2018-06-12 | 中国农业科学院郑州果树研究所 | A kind of therapy of pear tree root disease |
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| CN102429873A (en) * | 2011-11-29 | 2012-05-02 | 北京科信必成医药科技发展有限公司 | Desmethylvenlafaxine sustained-release pellet and preparation method thereof |
| CN102429886A (en) * | 2011-12-27 | 2012-05-02 | 合肥立方制药股份有限公司 | Indapamide osmotic pump preparation and preparation method thereof |
| CN103130568A (en) * | 2013-01-27 | 2013-06-05 | 成都科利隆生化有限公司 | Thiamethoxam insecticide-fertilizer mixture and preparing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105248445A (en) * | 2015-11-16 | 2016-01-20 | 河北德瑞化工有限公司 | Slow-release thiamethoxam water dispersible granule and preparing method thereof |
| CN108142195A (en) * | 2017-12-29 | 2018-06-12 | 中国农业科学院郑州果树研究所 | A kind of therapy of pear tree root disease |
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