CN102265831A - Botanical pesticide Chamaejasmine A suspension and preparation method thereof - Google Patents
Botanical pesticide Chamaejasmine A suspension and preparation method thereof Download PDFInfo
- Publication number
- CN102265831A CN102265831A CN2011102286298A CN201110228629A CN102265831A CN 102265831 A CN102265831 A CN 102265831A CN 2011102286298 A CN2011102286298 A CN 2011102286298A CN 201110228629 A CN201110228629 A CN 201110228629A CN 102265831 A CN102265831 A CN 102265831A
- Authority
- CN
- China
- Prior art keywords
- agent
- stellerin
- suspending agent
- water
- chamaejasmine
- 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.)
- Pending
Links
Images
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a botanical pesticide Chamaejasmine A suspension and a preparation method thereof. The suspension is prepared from the following raw materials in percentage by weight: 1.0-10.0% of Chamaejasmine A crystal powder or Chamaejasmine A extractive mother solution, 1.0-20.0% of solvent, 0.1-10.0% of dispersing agent, 0.1-5.0% of wetting agent, 0.1-10.0% of thickening agent, 0-5.0% of antifreezing agent, 0-2.0% of pH regulating agent and the balance of water. The preparation method comprises the following steps: fully mixing the dispersing agent, the wetting agent, the thickening agent, the antifreezing agent, the pH regulating agent and water to serve as a mixed system of water; and under the condition of high shearing or high-speed stirring, dispersing original pesticide and solvent into the mixed system of water to form the suspension. The Chamaejasmine A is the efficient, low-toxicity and environmentally-friendly pesticide extracted from plants, and the suspension only contains little organic solvent and most of water. The preparation technology of the botanical pesticide Chamaejasmine A suspension is simple and easy to industrialize and is easy to popularize and apply.
Description
Technical field
The present invention relates to a kind of preparation technology of plant insecticide, specifically is a kind of biopesticide stellerin A suspending agent and preparation method thereof.
Background technology
Characteristics such as it is safe, efficient, pollution-free that biopesticide has, the requirement that develops in harmony with ecological environmental protection and society matches.The research and development of China's biopesticide in recent years are more and more, and tens kinds such as existing matrine, Dalmatian chrysanthemum, rotenone are successfully applied, and export volume also increases year by year.
Stellerin A is the main component in the Thymelaeceae Chinese herbal medicine Chinese Stellera Root rhizome ethanol extract, uses as biological insecticides on agricultural.Stellerin A also has characteristics efficient, wide spectrum except the advantage that has general biopesticide and have, can effectively prevent and treat common insects such as aphid on the crops such as paddy rice, corn, soybean, cotton, vegetables, snout moth's larva, cabbage caterpillar, cotton bollworm, mythimna separata.
The research of stellerin A there has been the history of decades, extraction process maturation at present, but the research of its formulation is relatively lagged behind, product sold mainly is based on missible oil at present, but the missible oil outward appearance is muddy unstable; Though the report of existing aqueous emulsion is difficult to be processed into stable aqueous emulsion.Single and stable inadequately owing to product forms, limited applying of stellerin A to a certain extent.
The present invention overcomes the prior art defective, starts with from the self-characteristic of stellerin A, simplifies production technology, has developed new stellerin A suspending agent.The successful Application of this technology can promote promoting the use of of stellerin A, accelerates the developing steps of this product.
Summary of the invention
The object of the invention is to break through the complicated technology that existing suspending agent grinds, and it is stable to work out a kind of prescription, the stellerin A suspending agent of efficient, low toxicity.Another purpose of the present invention is to provide a kind of suspending agent preparation technology of novelty, this technology does not need sand milling, saves power, and is simple to operate, realize suitability for industrialized production easily, the product appearance of being produced, suspensibility, dispersiveness, cold storage, heat storage stability etc. are all preferable.
Stellerin A suspending agent formula that the present invention relates to and preparation method thereof is achieved through the following technical solutions,
Prescription is formed: stellerin A crystal powder or stellerin A extract mother liquor 1.0～10.0%, solvent 1.0～20.0%, dispersant 0.1～10.0%, wetting agent 0.1～5.0%, thickener 0.1～10.0%, antifreezing agent 0～5.0%, pH regulator agent 0～2.0% and water surplus are supplied.
Solvent is methyl alcohol, ethanol, isopropyl alcohol, N, at least a in dinethylformamide, the acetone.
Dispersant is at least a in acrylic copolymer sodium salt, naphthalene sulfonate, naphthalenesulfonate formaldehyde condensation compound, sodium lignin sulfonate, calcium lignosulfonate, the allyl alcohol modified polyether.
Wetting agent is at least a in carboxylate, neopelex, lauryl sodium sulfate, ethoxylated dodecyl alcohol sodium sulphate, the modification alkylsulfonate.
Thickener is selected from least a in xanthans, aluminium-magnesium silicate, carboxymethyl cellulose, hydroxyethylcellulose, the polyvinyl alcohol.
Antifreezing agent is selected from least a in ethylene glycol, propane diols, glycerine, the urea.
The pH regulator agent is selected from least a in citric acid, oxalic acid, hydrochloric acid, sodium hydroxide, the ammoniacal liquor.
Preparation method: earlier dispersant, wetting agent, thickener, antifreezing agent, pH regulator agent and water are fully mixed mixed system as water, the technology that adopts high shear or high-speed stirred is dispersed in the mixed liquor of former medicine and solvent in the mixed system of water and forms 1.0～10.0% suspending agents, be up to the standards, discharging is packed.
Stellerin A platymiscium insecticide, former medicine effective content is low, the chemical substance that contains a large amount of unknown structure in the extract, if according to existing suspending agent production technology, medicine can form jelly in sand grinding process Central Plains, form bead or all be bonded on the chamber wall, all can not head it off by dispersant, wetting agent etc.Want head it off to develop qualified suspending agent, just need be by selecting specific component prescription and improving production technology and realize.That is to say by proportioning provided by the present invention and technology to make the stellerin A suspending agent have good surface appearance, and the merging phenomenon does not take place between particle to assemble in storage process, the granularity and the distribution thereof of dispersed particle remain unchanged, and dispersed phase particles can stably be suspended in the dispersion medium and not sedimentation.
Compared with prior art, plant insecticide stellerin A suspending agent of the present invention has the following advantages:
1, the drug effect height, toxicity is low, product is stable.Phenomenons such as bleed, crystallization, precipitation do not appear in the product room temperature preservation, and low temperature and high-temperature storage test are all qualified.
2, preparation technology is simple implements easily.Common suspending agent need pass through sand milling, complex process, and loss is big, but the suspending agent that the present invention relates to only needs high shear or high-speed stirred can form qualified suspending agent.
Description of drawings
Accompanying drawing is the processing process figure of stellerin A suspending agent of the present invention.
Embodiment
In order to explain the present invention better, the invention will be further described below in conjunction with specific embodiment, but the scope of protection of present invention is not limited to the scope that example is represented.
Reagent and material described in the following embodiment if no special instructions, all can obtain from commercial channels; " % " representative " mass percent " among the following embodiment.
Embodiment 1,1.6% stellerin A suspending agent
Calculate each amounts of components respectively by above proportioning.In a container, 9.5% stellerin A mother liquor is dissolved in the ethanol; To mix after acrylic copolymer sodium salt, neopelex, ethylene glycol, xanthans and the water weighing in another container, high-speed stirred limit, limit adds ethanolic solution, forms suspending agent at last again.Carry out product according to the suspending agent quality control index and detect, index includes effective component content, particle diameter, suspensibility, viscosity, pH and heat storage stability etc., detects qualified back packing.
Embodiment 2,2.5% stellerin A suspending agent
The preparation method is with embodiment 1.
Calculate each amounts of components respectively by above proportioning.In a container, 9.5% stellerin A mother liquor is dissolved into N, in the dinethylformamide; Again in another container with mixing after modification alkylsulfonate, allyl alcohol modified polyether, glycerine, aluminium-magnesium silicate and the water weighing, add N while stirring, dinethylformamide solution forms suspending agent at last.Carry out product according to the suspending agent quality control index and detect, index includes effective component content, particle diameter, suspensibility, viscosity, pH scope and heat storage stability etc., detects qualified back packing.
Claims (8)
1. plant insecticide stellerin A suspending agent, it is characterized in that: be made up of following ingredients by weight percentage: stellerin A crystal powder or stellerin A extract mother liquor 1.0～10.0%, solvent 1.0～20.0%, dispersant 0.1～10.0%, wetting agent 0.1～5.0%, thickener 0.1～10.0%, antifreezing agent 0～5.0%, pH regulator agent 0～2.0% and water surplus are supplied.
2. according to claims 1 described stellerin A suspending agent, it is characterized in that described solvent is selected from least a in following 5 kinds of materials: methyl alcohol, ethanol, isopropyl alcohol, N, dinethylformamide, acetone.
3. according to claims 1 described stellerin A suspending agent, it is characterized in that described dispersant is selected from least a in following 6 kinds of materials: acrylic copolymer sodium salt, naphthalene sulfonate, naphthalenesulfonate formaldehyde condensation compound, sodium lignin sulfonate, calcium lignosulfonate, allyl alcohol modified polyether.
4. according to claims 1 described stellerin A suspending agent, it is characterized in that described wetting agent is selected from least a in following 5 kinds of materials: thiazolinyl carboxylate, neopelex, lauryl sodium sulfate, ethoxylated dodecyl alcohol sodium sulphate, modification alkylsulfonate.
5. according to claims 1 described stellerin A suspending agent, it is characterized in that described thickener is selected from least a in xanthans, aluminium-magnesium silicate, carboxymethyl cellulose, hydroxyethylcellulose, the polyvinyl alcohol.
6. according to claims 1 described stellerin A suspending agent, it is characterized in that described antifreezing agent is selected from least a in ethylene glycol, propane diols, glycerine, the urea.
7. according to claims 1 described stellerin A suspending agent, it is characterized in that described pH regulator agent is selected from least a in citric acid, oxalic acid, hydrochloric acid, sodium hydroxide, the ammoniacal liquor.
8. according to claims 1～6 described plant insecticide stellerin A suspending agent preparation method, it is characterized in that: the preparation process of suspending agent does not need sand milling, directly adopts the mode of high shear or mixed at high speed to make.This method is the mixed system that earlier dispersant, wetting agent, thickener, antifreezing agent, pH regulator agent and water is fully mixed as water, and the technology that adopts high shear or high-speed stirred is dispersed in the mixed liquor of former medicine and solvent in the mixed system of water and forms 1.0～10.0% suspending agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102286298A CN102265831A (en) | 2011-08-11 | 2011-08-11 | Botanical pesticide Chamaejasmine A suspension and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102286298A CN102265831A (en) | 2011-08-11 | 2011-08-11 | Botanical pesticide Chamaejasmine A suspension and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102265831A true CN102265831A (en) | 2011-12-07 |
Family
ID=45048438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102286298A Pending CN102265831A (en) | 2011-08-11 | 2011-08-11 | Botanical pesticide Chamaejasmine A suspension and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102265831A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202290A (en) * | 2013-05-07 | 2013-07-17 | 中化化工科学技术研究总院 | Cyhalofop-butyl suspending agent and preparation method thereof |
| CN103300074A (en) * | 2013-07-02 | 2013-09-18 | 四川大学 | Stellera chamaejasmine compounded pesticide as well as preparation method and applications thereof |
| CN103598265A (en) * | 2013-11-11 | 2014-02-26 | 丹阳市清云农业发展有限公司 | Insect-expelling and disinsection composition for organic rice and preparation method thereof |
| CN106614544A (en) * | 2016-11-09 | 2017-05-10 | 北京农学院 | Water suspension agent containing mixture of four types of dihydrobiflavone isomers and preparation method of water suspension agent |
-
2011
- 2011-08-11 CN CN2011102286298A patent/CN102265831A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202290A (en) * | 2013-05-07 | 2013-07-17 | 中化化工科学技术研究总院 | Cyhalofop-butyl suspending agent and preparation method thereof |
| CN103202290B (en) * | 2013-05-07 | 2014-04-16 | 中化化工科学技术研究总院 | Cyhalofop-butyl suspending agent and preparation method thereof |
| CN103300074A (en) * | 2013-07-02 | 2013-09-18 | 四川大学 | Stellera chamaejasmine compounded pesticide as well as preparation method and applications thereof |
| CN103300074B (en) * | 2013-07-02 | 2015-07-15 | 四川大学 | Stellera chamaejasmine compounded pesticide as well as preparation method and applications thereof |
| CN103598265A (en) * | 2013-11-11 | 2014-02-26 | 丹阳市清云农业发展有限公司 | Insect-expelling and disinsection composition for organic rice and preparation method thereof |
| CN106614544A (en) * | 2016-11-09 | 2017-05-10 | 北京农学院 | Water suspension agent containing mixture of four types of dihydrobiflavone isomers and preparation method of water suspension agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101941872B (en) | Pesticidal foliage fertilizer mixed with plant growth factors and preparation method thereof | |
| CN102165956B (en) | Pesticide composite containing bispyribac-sodium and penoxsulam and application thereof | |
| CN104430307A (en) | Micro-capsulated suspended microbial seed coating agent and preparation method thereof | |
| CN102265831A (en) | Botanical pesticide Chamaejasmine A suspension and preparation method thereof | |
| CN101971805A (en) | Oil-suspension agricultural mesotrione preparation as well as preparation method and applications thereof | |
| CN105076145A (en) | Microcapsule suspending agent containing azoxystrobin and preparation method thereof | |
| CN103058779B (en) | Pyridine.benzene thiamethoxam acyl fertilizer and production method thereof | |
| CN102239829A (en) | Dinotefuran aqueous suspension agent and its preparation method | |
| CN105994301A (en) | Pesticide composition containing fluopyram | |
| CN107251897A (en) | Novel low-toxicity cell member herbicide of efficient high disintegration rate and preparation method thereof | |
| CN101422164B (en) | Chlorpyrifos and Imidacloprid suspension emulsion and preparation method thereof | |
| CN110342999A (en) | Special high-content multifunctional suspended liquid compound fertilizer for leaf vegetables and preparation method thereof | |
| CN102657192B (en) | Biological bactericide chelerythrine suspending agent and preparation method thereof | |
| CN101828571B (en) | Pesticide water suspending agent containing high-efficiency lambda-cyhalothrin and preparation method thereof | |
| CN104904728A (en) | Pesticide combination containing flufenacet and pendimethalin and appliance thereof | |
| CN106106511A (en) | A kind of composition pesticide containing fosthiazate | |
| CN107484756A (en) | Aviation plant protection special assistant and preparation method and application | |
| CN103609573A (en) | Insecticidal composition containing spinetoram and spirotetramat | |
| CN102599165A (en) | Azoxystrobin microcapsule suspending agent and preparation method thereof | |
| CN103478139A (en) | Water surface floating granule for weeding | |
| CN103141489B (en) | Pesticidal reagent containing N6-(2-hydroxyethyl)adenosine | |
| CN101743954A (en) | Multi-effect azole suspending agent and method for preparing same | |
| CN104663687A (en) | Insecticidal and acaricidal composition containing carbamate insecticide | |
| CN103210914A (en) | Hymexazol soluble granule and preparation method thereof | |
| CN102907441B (en) | Suspension concentrate containing bismerthiazol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111207 |