CN105076191A - Efficient cyfluthrin microcapsule suspending agent and preparation method thereof - Google Patents
Efficient cyfluthrin microcapsule suspending agent and preparation method thereof Download PDFInfo
- Publication number
- CN105076191A CN105076191A CN201510515912.7A CN201510515912A CN105076191A CN 105076191 A CN105076191 A CN 105076191A CN 201510515912 A CN201510515912 A CN 201510515912A CN 105076191 A CN105076191 A CN 105076191A
- Authority
- CN
- China
- Prior art keywords
- betacyfluthrin
- suspending agent
- microcapsule suspending
- agent according
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The invention relates to a preparation method of an efficient cyfluthrin microcapsule suspending agent. The microcapsule suspending agent is prepared by utilizing efficient cyfluthrin as a capsule core through a piercing-solidifying bath method. The microcapsule suspending agent comprises the following components in percentage by weight: 1%-40% of efficient cyfluthrin, 3%-15% of a capsule core solvent, 5%-10% of a capsule wall material, 3%-10% of an emulsifying agent, 1%-5% of a dispersing agent and the balance of water. The efficient cyfluthrin microcapsule suspending agent is high in stability, long in lasting period, safe in use and less in environmental pollution.
Description
Technical field
The invention belongs to field of pesticide preparation, specifically a kind of betacyfluthrin microcapsule suspending agent and preparation method thereof
Background technology
Chemical control is the important means that the mankind prevent and treat agricultural damage by disease and insect, chemical pesticide is to ensureing that the increasing both production and income of agricultural plays very important effect, but the use of agricultural chemicals, while Ensuring Food Safety is produced, also bring a series of environment and the social concerns such as residual, pollution.Be only due to chemical pesticide itself, and cause because the formulations of pesticide are processed and application process is unreasonable to a great extent.It is reported, the availability of conventional type agricultural chemicals only has 20% ~ 30%, and percent of loss is by all means up to 50% ~ 60%, and this is not only a kind of waste economically, and causes large-scale environmental pollution.Therefore, develop safety, high-efficiency environment friendly, prolongation lasting period, alleviate poisoning, reduce agricultural chemicals novel form preparation that is residual, the range of application that increases agricultural chemicals in the environment and become one of developing direction of pesticide in future formulation.
Microcapsule suspending agent is as a kind of novel environment friendly formulation, in the prolongation agricultural chemicals lasting period, contribution is remarkable, but its encapsulation process is different, first market is primarily of Lauxite method (in-situ polymerization) and polymethylene multi-phenenyl isocyanate/amine reaction method (interfacial polymerization).No matter these two kinds of methods, be original flavor polymerization and interfacial polymerization, all employ the chemical material that toxicity ratio is larger.And the present invention mainly with gelatin/gum Arabic/mosanom for capsule material, it is natural macromolecular material, and feature is nontoxic, good biocompatibility.
Betacyfluthrin is a kind of pyrethroid insecticides of synthesis, has and tags and stomach poison function, and insecticidal spectrum is wide, and knock down rapidly, the lasting period is long, and plant has good drug resistance to it.
But the duration of each product of betacyfluthrin that existing market is sold is relatively short, cause the frequent medication of peasant and improve constantly dosing, many areas all cause drug-fast generation, and the lasting period for this reason extending this medicament becomes problem urgently to be resolved hurrily.In addition, the formulation that betacyfluthrin uses at present, still based on aqueous emulsion and missible oil, owing to using a large amount of mineral soil and organic solvent, not only consumes a large amount of fossil resources, also result in very large pressure to environment.After betacyfluthrin is made microcapsule suspending agent, not only can improve its stability, extend the lasting period, reduce application times and amount of application, its harmful effect to environment and agricultural product can also be alleviated, thus improve the safety of medication.
Agricultural chemicals microcapsule suspending agent refers to and utilizes the macromolecular material of natural or synthesis to form nucleocapsid structure small container, and agricultural chemicals is wherein coated, and is suspended in the formulations of pesticide in water.It comprises cyst wall and capsule-core two parts, and capsule-core is agriculture the effective elements of the medicine and solvent, and cyst wall is the macromolecular material of film forming.This formulation is divided into continuous phase and discontinuous phase, and continuous phase is water and auxiliary agent, and discontinuous phase is the agricultural chemicals tiny capsules be wrapped by.This formulation has slow releasing function, the longevity of residure is long, stability is high, toxicity is low, preventive effect is high; take water as dispersion medium; reduce the usage amount of organic solvent, significant for saving fossil energy, the protecting agriculture ecological balance, be more conducive to the sustainable development of agricultural.
The preparation method of agricultural chemicals microcapsule suspending agent has spray-on process, hypobaric drying method, list (answering) coacervation, situ aggregation method, interfacial polymerization etc., wherein interfacial polymerization due to easy to operate, production cost is low, current use is comparatively extensive, but use the chemical materials such as ethylenediamine aborning, environment, workman are impacted.Therefore the present invention uses orifice-coagulating bath method to produce the microcapsule suspending agent of betacyfluthrin.
Orifice-coagulating bath method is mixed with distilled water by cyst wall gelatin/gum Arabic/mosanom, and add thermal agitation, temperature controls at 60-70 DEG C, after complete melting, add the mixing and emulsifyings such as the capsule heart (betacyfluthrin solution), emulsifier even, orifice granulation, coagulating bath is solidified, and is finally separated the process being dried to finished product.
Summary of the invention
For solving the blank of current betacyfluthrin microcapsule suspending agent, the object of the present invention is to provide a kind of betacyfluthrin micro-capsule suspension and preparation method thereof.
Of the present inventionly to be achieved through the following technical solutions: a kind of betacyfluthrin microcapsule suspending agent, be made up of the component of following percentage by weight: betacyfluthrin 1%-40%, capsule-core solvent 3%-15%, cyst material 5%-10%, emulsifier 3%-10%, dispersant 1%-5%, water supplies 100%.
Described capsule-core solvent is the mixing of one or more in dimethylbenzene, cyclohexanone, ethyl acetate, 1-METHYLPYRROLIDONE, diethyl phthalate, dibutyl phthalate, Solvesso100, Solvesso150, Solvesso200.
Described cyst material is mixed by 1:1:1 weight ratio by gelatin, gum Arabic, mosanom.
Described emulsifier is the mixing of one or more in alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, disecoctylmaleate sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof.
Described dispersant is the mixing of one or more in alkylphenol polyoxyethylene formaldehyde condensation products sulphate, sodium methylene bis-naphthalene sulfonate, alkylaryl polyoxyethylene polyoxypropylene ether, sodium lignin sulfonate, calcium lignosulfonate, polycarboxylic acid salt's dispersant.
Described water is the one in running water, drinking water, soft water, deionized water.
The preparation method of betacyfluthrin microcapsule suspending agent of the present invention:
1, accurately take cyst material 5%-10%, wherein, gelatin: gum Arabic: the weight ratio of mosanom is 1:1:1, adds appropriate amount of deionized water, mixes, add thermal agitation, and temperature controls at 60-70 DEG C, makes its complete molten condition, stand-by.
2, accurately take the former medicine of betacyfluthrin, fully dissolve completely with appropriate solvent, evenly, add emulsifier, stand-by.
3, when step 1 stirs, add dispersant, slowly add step 2 material afterwards, make its mixing and emulsifying even.
4, carry out granulation with orifice method, curing solution is 2% calcium chloride solution.
5, be separated drying, obtain finished product.
The invention provides a kind of lasting period length, low toxicity, environmentally friendly, person poultry safety, to the betacyfluthrin microcapsule suspending agent that insect not easily develops immunity to drugs.Said preparation stable performance, easily degrades, and grows tall to the crop pests lasting period, and environmental pollution is very little.Compared with prior art, provide the more eco-friendly pesticidal preparations of one, meet the non-environmental pollution control needs of pest.
Embodiment
Essence for a better understanding of the present invention, with example, technology contents of the present invention is described below, but content of the present invention is not limited thereto.
A kind of betacyfluthrin microcapsule suspending agent, be made up of the component of following percentage by weight: betacyfluthrin 1%-40%, capsule-core solvent 3%-15%, cyst material 5%-10%, emulsifier 3%-10%, dispersant 1%-5%, water supplies 100%.
Embodiment one:
1, preparation method:
(1), accurately take cyst material 8 grams, wherein gelatin: gum Arabic: mosanom is 1:1:1, adds balance deionized water, mixes, and adds thermal agitation, temperature controls at 60-70 DEG C, makes its complete molten condition, stand-by.
(2), accurately take the former medicine of betacyfluthrin 5 grams, fully dissolve completely with 3 grams of dimethylbenzene, evenly, add emulsifier alkaryl phenol polyethenoxy ether phosphate 3 grams, castor oil polyoxyethylene ether 1.5 grams, stand-by.
(3) when step 1 stirs, temperature controls at 60-70 DEG C, adds 2 grams, dispersant alkylaryl polyoxyethylene polyoxypropylene ether, slowly adds step 2 material afterwards, makes its mixing and emulsifying even.
(4) carry out granulation with orifice method, curing solution is 2% calcium chloride solution.
(5) be separated, dry, obtain finished product.
2, study on the stability
Optical microphotograph Microscopic observation, obtain the 5% betacyfluthrin microcapsule suspending agent that average grain diameter is 2.5-10.5um, under cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates obtain condition in 1 day, resolution ratio is respectively: 0.01%, 1.02%, 1.5%.
Embodiment two:
1, preparation method:
(1) cyst wall gelatin/gum Arabic/mosanom 10 grams, is accurately taken, wherein gelatin: gum Arabic: mosanom is 1:1:1, adds balance deionized water, mix, add thermal agitation, temperature controls at 60-70 DEG C, make its complete molten condition, stand-by.
(2), accurately take the former medicine of betacyfluthrin 5 grams, fully dissolve completely with 3 grams of dimethylbenzene, evenly, add emulsifier alkaryl phenol polyethenoxy ether phosphate 4.5 grams, castor oil polyoxyethylene ether 2 grams, stand-by.
(3) when 1 stirs, temperature controls at 60-70 DEG C, adds 3.5 grams, dispersant alkylaryl polyoxyethylene polyoxypropylene ether, slowly adds 2 afterwards, makes its mixing and emulsifying even.
(4) carry out granulation with orifice method, curing solution is 2% calcium chloride solution.
(5) be separated, dry, obtain finished product.
2, study on the stability
Optical microphotograph Microscopic observation, obtain the 5% betacyfluthrin microcapsule suspending agent that average grain diameter is 2.5-10.5um, under cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates obtain condition in 1 day, resolution ratio is respectively: 0.28%, 1.65%, 2.35%.
Embodiment three:
1, preparation method:
(1), accurately take cyst wall gelatin/gum Arabic/mosanom 8 grams, wherein gelatin: gum Arabic: mosanom is 1:1:1, adds balance deionized water, mixes, and adds thermal agitation, temperature controls at 60-70 DEG C, makes its complete molten condition, stand-by.
(2), accurately take the former medicine of betacyfluthrin 5 grams, fully dissolve completely with 3 grams of dimethylbenzene, evenly, add emulsifier alkylbenzenesulfonate 3 grams, alkylphenol-polyethenoxy phosphate 1.5 grams, stand-by.
(3) when 1 stirs, temperature controls at 60-70 DEG C, adds 2 grams, dispersant alkylphenol polyoxyethylene formaldehyde condensation products sulphate, slowly adds 2 afterwards, makes its mixing and emulsifying even.
(4) carry out granulation with orifice method, curing solution is 2% calcium chloride solution.
(5) be separated, dry, obtain finished product.
2, study on the stability
Optical microphotograph Microscopic observation, obtain the 5% betacyfluthrin microcapsule suspending agent that average grain diameter is 2.5-10.5um, under cold storage (0 ± 1 DEG C) 7 days, heat storage (54 ± 2 DEG C) 14 days, normal temperature UV light irradiates obtain condition in 1 day, resolution ratio is respectively: 0.87%, 2.35%, 1.95%.
Embodiment four:
Adopt and prepare by above-mentioned enforcement the betacyfluthrin microcapsule suspending agent that example obtains and carry out control cabbage pieris, result of the test is in table 1.Field control effectiveness test shows, 5% betacyfluthrin microcapsule suspending agent uses 40 grams every mu to prevent and treat cabbage pieris worm, after medicine, 15 days preventive effects reach 77.3%, within after medicine 90 days, still effectively can control the harm of cabbage pieris, preventive effect reaches 78.2%, and the preventive effect of 90 days only has 50.5% after aqueous emulsion medicine, form a sharp contrast with aqueous emulsion, microcapsule suspending agent can increase its lasting period.
Prepare by above-mentioned enforcement the betacyfluthrin microcapsule suspending agent that example obtains and not only increase stability compared with existing missible oil, granule, also extend the lasting period, decrease application times and amount of application, also reduce its harmful effect to environment and agricultural product, thus improve the safety of medication.
Table 1, field control effectiveness test result
Claims (7)
1. a betacyfluthrin microcapsule suspending agent, is characterized in that: be made up of the component of following percentage by weight: betacyfluthrin 1%-40%, capsule-core solvent 3%-15%, cyst material 5%-10%, emulsifier 3%-10%, dispersant 1%-5%, water supplies 100%.
2. a kind of betacyfluthrin microcapsule suspending agent according to claim 1, is characterized in that: described capsule-core solvent is the mixing of one or more in dimethylbenzene, cyclohexanone, ethyl acetate, 1-METHYLPYRROLIDONE, diethyl phthalate, dibutyl phthalate, Solvesso100, Solvesso150, Solvesso200.
3. a kind of betacyfluthrin microcapsule suspending agent according to claim 1, is characterized in that: described cyst material is mixed by 1:1:1 weight ratio by gelatin, gum Arabic, mosanom.
4. a kind of betacyfluthrin microcapsule suspending agent according to claim 1, is characterized in that: described emulsifier is the mixing of one or more in alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, disecoctylmaleate sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof.
5. a kind of betacyfluthrin microcapsule suspending agent according to claim 1, is characterized in that: described dispersant is the mixing of one or more in alkylphenol polyoxyethylene formaldehyde condensation products sulphate, sodium methylene bis-naphthalene sulfonate, alkylaryl polyoxyethylene polyoxypropylene ether, sodium lignin sulfonate, calcium lignosulfonate, polycarboxylic acid salt's dispersant.
6. a kind of betacyfluthrin microcapsule suspending agent according to claim 1, is characterized in that: described water is the one in running water, drinking water, soft water, deionized water.
7. the encapsulation process of a kind of betacyfluthrin microcapsule suspending agent according to claim 1: (1), accurately take cyst material 5%-10%, wherein, gelatin: gum Arabic: the weight ratio of mosanom is 1:1:1, add appropriate amount of deionized water, mix, add thermal agitation, temperature controls at 60-70 DEG C, make its complete molten condition, stand-by;
(2), accurately take the former medicine of betacyfluthrin, fully dissolve completely with appropriate solvent, evenly, add emulsifier, stand-by;
(3), when step 1 stirs, add dispersant, slowly add step 2 material afterwards, make its mixing and emulsifying even;
(4), with orifice method carry out granulation, curing solution is 2% calcium chloride solution;
(5), be separated drying, obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515912.7A CN105076191A (en) | 2015-08-20 | 2015-08-20 | Efficient cyfluthrin microcapsule suspending agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515912.7A CN105076191A (en) | 2015-08-20 | 2015-08-20 | Efficient cyfluthrin microcapsule suspending agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105076191A true CN105076191A (en) | 2015-11-25 |
Family
ID=54558257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510515912.7A Withdrawn CN105076191A (en) | 2015-08-20 | 2015-08-20 | Efficient cyfluthrin microcapsule suspending agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105076191A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106035394A (en) * | 2016-06-02 | 2016-10-26 | 黄山力神日用品有限公司 | Preparation method of microcapsule mosquito-repellent incense liquid on basis of wormwood oil |
| CN108353917A (en) * | 2018-03-01 | 2018-08-03 | 大连工业大学 | The preparation method of chloropicrin capsule formulation |
| CN108782550A (en) * | 2018-07-17 | 2018-11-13 | 郭秦 | A kind of microcapsule suspension agent producing process |
| CN115486446A (en) * | 2022-09-27 | 2022-12-20 | 武汉地美达环境科技有限公司 | Efficient cyhalothrin and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845455A (en) * | 2012-03-29 | 2013-01-02 | 广东中迅农科股份有限公司 | High-efficient cyhalothrin microcapsule suspending agent and preparation method thereof |
-
2015
- 2015-08-20 CN CN201510515912.7A patent/CN105076191A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102845455A (en) * | 2012-03-29 | 2013-01-02 | 广东中迅农科股份有限公司 | High-efficient cyhalothrin microcapsule suspending agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 袁青梅 等: "微胶囊农药新剂型", 《云南大学学报(自然科学版)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106035394A (en) * | 2016-06-02 | 2016-10-26 | 黄山力神日用品有限公司 | Preparation method of microcapsule mosquito-repellent incense liquid on basis of wormwood oil |
| CN108353917A (en) * | 2018-03-01 | 2018-08-03 | 大连工业大学 | The preparation method of chloropicrin capsule formulation |
| CN108782550A (en) * | 2018-07-17 | 2018-11-13 | 郭秦 | A kind of microcapsule suspension agent producing process |
| CN115486446A (en) * | 2022-09-27 | 2022-12-20 | 武汉地美达环境科技有限公司 | Efficient cyhalothrin and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100428886C (en) | High performance cypermethrin micro-capsule emulsion | |
| CN101427672B (en) | Aqueous suspension of phytocide sethoxydim and method of producing the same | |
| CN101647431B (en) | Pesticide microcapsule granule and preparation method thereof | |
| CN105076191A (en) | Efficient cyfluthrin microcapsule suspending agent and preparation method thereof | |
| CN102210315B (en) | Carbosulfan microcapsule suspending agent and preparation method thereof | |
| CN102550575A (en) | Pyraclostrobin ester microcapsule suspending agent | |
| CN102845455A (en) | High-efficient cyhalothrin microcapsule suspending agent and preparation method thereof | |
| CN105076145A (en) | Microcapsule suspending agent containing azoxystrobin and preparation method thereof | |
| CN100493353C (en) | Sucrose ester insecticide and method for preparing the same | |
| CN103651550A (en) | Microcapsule suspending agent prepared from carbosulfan, chlorpyrifos and abamectin by compounding | |
| CN101427675B (en) | Microcapsule aqueous suspension of phytocide clomazone and method of producing the same | |
| CN105248444A (en) | Horseradish micro-capsule slow releasing agent taking silicon dioxide as carrier and preparation method thereof | |
| CN102177887A (en) | Diafenthiuron emulsion in water and preparation method thereof | |
| CN102388912A (en) | Fosthiazate aqueous emulsion and preparation method thereof | |
| CN104255726B (en) | Emulsion in water containing methoprene and preparation method thereof | |
| CN105076202A (en) | Microcapsule suspension containing fosthiazate and beta-cyfluthrin | |
| CN102239861A (en) | Abamectin and thiazoline complex microcapsule suspension and preparation method thereof | |
| CN102657190A (en) | Azadirachtin microcapsule suspension and preparation method thereof | |
| CN102599165A (en) | Azoxystrobin microcapsule suspending agent and preparation method thereof | |
| CN101707994B (en) | Microcapsule targeting pesticide preparation for controlling dendrobium officinale insect damage | |
| CN105284827A (en) | Clomazone-containing microcapsule suspending agent and preparation method thereof | |
| CN102524283A (en) | Indoxacarb microcapsule suspension and preparation method thereof | |
| CN105104422A (en) | Micro-capsule suspending agent containing fosthiazate and pyraclostrobin | |
| CN102640754B (en) | Cyazofamid microcapsule suspending agent and preparation method thereof | |
| CN102239831A (en) | Lythidathion microcapsule suspending agent and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151125 |