CN1423941A - Nimbin suspending agent and preparation thereof - Google Patents
Nimbin suspending agent and preparation thereof Download PDFInfo
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- CN1423941A CN1423941A CN 02152095 CN02152095A CN1423941A CN 1423941 A CN1423941 A CN 1423941A CN 02152095 CN02152095 CN 02152095 CN 02152095 A CN02152095 A CN 02152095A CN 1423941 A CN1423941 A CN 1423941A
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- nimbin
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Abstract
A nimbin suspension as insecticide is prepared from dried nimbin powder, wetting agent/disperser, thickening agent, stabilizer, defoaming agent, anti-freezing agent, thixotropic agent, pH regulator, other assistants and deionized water through ball grinding. Its advantages are high effect, high safety, low environmental pollution and low cost.
Description
Technical field
The present invention relates to a kind of vegetable insecticide, especially a kind of suspending agent that contains the insecticide active substance nimbin and preparation method thereof.
Background technology
The present invention is with " environmental friendliness " insecticide active substance nimbin, and being developed into water is the suspending agent of carrier, and it has stronger insecticidal activity.
Nimbin is not only universally acknowledged efficient insecticide active substance, and it is to environment, people, animal, pest natural enemy and other beneficial organism safety, and insect is difficult for developing immunity to drugs, and it belongs to the insecticide active substance of " environmental friendliness ".Countries in the world are attached great importance to it at present, have developed the nimbin insecticide variety in succession and have been no less than 40, and wherein formulation mainly is missible oil, wetting powder and pulvis.In recent years, forbidden the solvent of dimethylbenzene in developed countries such as Great Britain and Americas as agricultural chemicals, this is a kind of challenge to cream preparation, and wetting powder and pulvis can bring dust pollution, thereby impel the formulations of pesticide to bring in constant renewal in, the modern formulations of pesticide are to water baseization, ultramicronising, no dust and the development of sustained release aspect.Wherein water baseization is exactly one of main direction of agricultural chemicals development.Water can reduce the consumption of organic solvent as the suspending agent of carrier, the dust pollution that does not have wetting powder and pulvis to bring again, and reduced the pesticide producing cost, become a kind of very important formulation in the pesticide manufacturing.
CN 01107061.7: " micro nimbin emulsion and method for making thereof " discloses a kind of method for making of micro nimbin emulsion.Micro nimbin emulsion is that the effect by emulsifier/dispersant is uniformly distributed in nimbin kind nuclear fluid extract in the deionized water, forms translucent preparation.The present invention is the physics peptizaiton by the effect of dispersant and ball mill, and nimbin dry powder is dispersed in the deionized water with small solid state, reduces the consumption of the organic solvent in the pesticidal preparations, can also protect nimbin better.
Technology contents
The objective of the invention is to propose a kind of method for preparing the nimbin suspending agent.
Purpose of the present invention is achieved through the following technical solutions:
Nimbin dry powder and wetting agent/dispersant, thickener, stabilizing agent, defoamer, antifreezing agent, thixotropic agent, short bleeding agent, pH regulator agent and deionized water mix in proportion, ball milling is 2.5～3 hours in ball mill, the particle diameter that makes nimbin is all when the following scope of 4 μ m, wherein nimbin dry powder prepares as follows: the squeezing neem kernel obtains neem oil, slowly join neem oil in the non-polar solven, filter or centrifugally go out flocculent deposit, precipitation is drying to obtain nimbin dry powder.
Above-mentioned nimbin suspending agent contains by weight:
Nimbin dry powder 0.1%～80% defoamer 1%～10%
Wetting agent/dispersant 0.5%～50% antifreezing agent 0.1%～5%
Thickener 0.3%～10% pH regulator agent 0.01%～5%
Stabilizing agent 0.01%～20% short bleeding agent 0%～10%
Thixotropic agent 0.2%～3% deionized water 10%～80%
Described wetting agent/dispersant is: sodium lignin sulfonate, calcium lignosulfonate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, the alkyl naphthalene formaldehyde condensate sulfonates, neopelex, lauryl sodium sulfate, potassium oleate (sodium), alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, polyoxyethylene polyoxypropylene base ether block copolymers, draw back powder, poly-second carboxylic esters sodium salt, the dodecyl polyoxyethylene ether phosphate, the alkyl naphthalene formaldehyde condensate sulfonates, oleic acid methylamino ethylsulfonic acid sodium, starch, gelatin, one or more mixing in CMC and the polyvinyl alcohol.
Thickener is: one or more mixing in xanthans, heteroglycan, the basic cellulose of hydroxyl first (second), methylcellulose, gum Arabic, guar gum, sodium alginate, carrageenan, pectin, polyvinyl alcohol, bentonite, synthetic hydrated silicon acid, gypsum, acrylic acid series polymeric compounds and the aluminium-magnesium silicate.
Stabilizing agent is selected from: pyrogallol, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, chloropropylene oxide, sodium sorbate, Sodium Benzoate, epoxidised soybean oil, linseed oil, quinhydrones, anthraquinone, eugenol, BHA, BHT, V
B, citric acid, ascorbic acid, PABA, hydroxy benzoate, nipasol, Jiao's property do not eat one or more mixing in misery acid, dihydroxy hexichol (first) ketone, FB-28, castor oil, olive oil, hydroquinones, bisnaphthol, 1-naphthols, salicylic acid, rosemary oil, benzoic acid and the soluble starch.
Penetrating agent is: Laurocapram.
Defoamer is: silicone oil, silicone, C
10-20Saturated fat acids, C
8-10In aliphatic alcohols and the π-ethylhexanol any.
Antifreezing agent is: one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, sorbierite and the urea mix.
The pH regulator agent is: select in sodium hydroxide, ammoniacal liquor, acetic acid, citric acid and the phosphoric acid.
The invention provides a kind of efficient, low toxicity, pollution-free, to the nimbin suspending agent that environment, people, animal safety and insect are difficult for developing immunity to drugs, said preparation is with water to replace organic solvent.It is dispersed in nimbin in the water with the particle diameter below the 4 μ m by the physics peptizaiton of dispersant and ball mill, forms linen preparation.Technology of the present invention is simple, and production cost is low.
The present invention has following advantage:
Nimbin is scattered in the water with the particle of miniaturization, thereby has: 1. flash-point height, and do not burn and do not explode, produce and store and safe in utilization; 2. dust is few, and environmental pollution is little, to the producer and user and Environmental security; 3. with water matrix, aboundresources, product cost is low, easily packing; 4. nimbin had protective effect; 5. after the said preparation spraying, be distributed in crop surface with fine particle, thus " instantaneous " concentration height of insect's food-taking, good disinsection effect.
Embodiment one 0.2% nimbin suspending agent: its each constituent content (by weight) is a nimbin dry powder 2%, wetting agent/dispersant 10%, thickener 5%, stabilizing agent 2%, defoamer 1%, short bleeding agent 0.5%, antifreezing agent 3%, thixotropic agent 2%, pH regulator agent 0.8% adds deionized water to 100%.Nimbin content in the said nimbin dry powder is 10%.
Embodiment 2 0.5% nimbin suspending agents: its each component is nimbin dry powder 5% by weight, wetting agent/dispersant 11%, thickener 4%, stabilizing agent 2.5%, defoamer 1%, short bleeding agent 0.5%, antifreezing agent 3%, thixotropic agent 2.5%, pH regulator agent 1% adds deionized water to 100%.Nimbin content in the said nimbin dry powder is 10%.
Embodiment 3 1.5% nimbin suspending agents: it is nimbin dry powder 15% by weight that its each component contains, thickener 3.2%, stabilizing agent 3%, defoamer 1.3%, short bleeding agent 0.7%, antifreezing agent 4%, thixotropic agent 2.5%, pH regulator agent 1.5% adds deionized water to 100%.Nimbin content in the said nimbin dry powder is 10%.
Embodiment 4 5% nimbin suspending agents: its each component is nimbin dry powder 50% by weight, thickener 2.5%, stabilizing agent 3.5%, defoamer 1.5%, short bleeding agent 1%, antifreezing agent 4%, thixotropic agent 2.5%, pH regulator agent 1.8% adds deionized water to 100%.Nimbin content in the said nimbin dry powder is 10%.
1 0.5％ 1 3 7 14 ( ) ( ) ( ％ ) ( ％ ) ( ％ ) ( ) ( ％ ) ( ％ ) ( ％ ) ( ) ( ％ ) ( ％ ) ( ％ ) ( ) ( ％ ) ( ％ ) ( ％ ) 0.5％ 800 1 77 68 11.69 12.30 16.12 27 64.94 67.42 70.95 2 97.40 96.66 97.20 19 75.32 74.69 77.36 2 70 60 14.29 22 68.57 3 95.71 14 80.00 3 64 57 10.94 20 68.75 2 96.88 20 68.750.5％ 1000 1 73 61 16.44 11.66 15.50 26 64.38 62.01 66.14 2 97.26 94.94 95.75 23 68.49 69.11 72.36 2 59 55 6.78 28 52.54 3 94.92 17 71.19 3 68 60 11.76 21 69.12 5 92.65 22 67.650.5％ 2000 1 63 60 4.76 4.08 8.25 31 50.79 53.91 58.91 10 84.13 83.57 86.19 32 49.21 52.52 57.52 2 78 76 2.56 26 66.67 12 84.62 28 64.10 3 61 58 4.92 34 44.26 11 81.97 34 44.260.5％ 800 1 56 52 7.14 6.99 11.03 20 64.29 56.14 60.90 5 91.07 91.51 92.86 18 67.86 67.22 70.67 2 48 44 8.33 23 52.08 4 91.67 16 66.67 3 73 69 5.48 35 52.05 6 91.78 24 67.1210％ 1000 1 67 25 62.69 58.49 60.30 20 70.15 68.05 71.52 16 76.12 73.92 78.08 33 50.75 53.27 58.19 2 59 21 64.41 18 69.49 14 76.27 27 54.24 3 62 32 48.39 22 64.52 19 69.35 28 54.84 1 85 87-2.35-4.54 90-5.88-12.17 101-18.82-19.01 92-8.24-11.76 2 60 64-6.67 71-18.33 70-16.67 67-11.67 3 65 68-4.62 73-12.31 79-21.54 75-15.38
Claims (10)
1. nimbin suspending agent is characterized in that it being by containing by weight:
Nimbin dry powder 0.1%～80% defoamer 1%～10%
Wetting agent/dispersant 0.5%～50% antifreezing agent 0.1%～5%
Thickener 0.3%～10% pH regulator agent 0.01%～5%
Stabilizing agent 0.01%～20% short bleeding agent 0%～10%
Thixotropic agent 0.2%～3% deionized water 10%～80%
2. nimbin suspending agent according to claim 1 is characterized in that conditioning agent/dispersant is: sodium lignin sulfonate, calcium lignosulfonate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, alkyl naphthalene formaldehyde condensate sulfonates, neopelex, lauryl sodium sulfate, potassium oleate (sodium) and alkyl polyoxyethylene ether sulfonate; Any one or more mixing in alkylphenol-polyethenoxy base ether formaldehyde condensation products, alkylphenol-polyethenoxy base ether Nonyl pheno base ether and the polyoxyethylene polyoxypropylene base ether block copolymers.
3. nimbin suspending agent according to claim 1 is characterized in that dispersant is: sodium lignin sulfonate, calcium lignosulfonate, draw back any one or more mixing in powder, poly-second carboxylic esters sodium salt, dodecyl polyoxyethylene ether phosphate, alkyl naphthalene formaldehyde condensate sulfonates, oleic acid methylamino ethylsulfonic acid sodium, alkyl acid polyoxyethylene groups ether sulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, starch, gelatin, CMC, the polyvinyl alcohol.
4. nimbin suspending agent according to claim 1 is characterized in that thickener is: any one or more mixing in xanthans, heteroglycan, the basic cellulose of hydroxyl first (second), methylcellulose, gum Arabic, guar gum, sodium alginate, carrageenan, pectin, polyvinyl alcohol, bentonite, synthetic hydrated silicon acid, gypsum, acrylic acid series polymeric compounds, the aluminium-magnesium silicate.
5. nimbin suspending agent according to claim 1 is characterized in that stabilizing agent is selected from: chloropropylene oxide, pyrogallol, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, sodium sorbate, Sodium Benzoate, epoxidised soybean oil, linseed oil, quinhydrones, anthraquinone, eugenol, BHA, BHT, V
B, one or more mixing in sad, dihydroxy hexichol (first) ketone of citric acid, ascorbic acid, PABA, hydroxy benzoate, nipasol, pyrogallic acid, FB-28, castor oil, olive oil, hydroquinones, bisnaphthol, 1-naphthols, salicylic acid, rosemary oil, benzoic acid, soluble starch.
6. nimbin suspending agent according to claim 1 is characterized in that penetrating agent is: Laurocapram.
7. nimbin suspending agent according to claim 1 is characterized in that defoamer is: silicone oil, silicone, C
10-20Saturated fat acids, C
8-10In aliphatic alcohols, the π-ethyl hexanol any.
8. nimbin suspending agent according to claim 1 is characterized in that antifreezing agent is: one or more mixing in ethylene glycol, glycerine, propane diols, polyethylene glycol, sorbierite, the urea.
9. nimbin suspending agent according to claim 12 is characterized in that the pH regulator agent is: sodium hydroxide, ammoniacal liquor, acetic acid, citric acid and phosphoric acid wherein a kind of.
10. the preparation method of a nimbin suspending agent, it is characterized in that: earlier nimbin dry powder is fully mixed with wetting agent/dispersant in proportion, add defoamer, thickener, stabilizing agent, short bleeding agent, antifreezing agent, thixotropic agent, pH regulator agent and deionized water then successively, stir while adding evenly, ball milling is 2.5～3 hours in ball mill, and the particle diameter that makes nimbin is all when 4 μ m are following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152095 CN1423941A (en) | 2002-12-02 | 2002-12-02 | Nimbin suspending agent and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152095 CN1423941A (en) | 2002-12-02 | 2002-12-02 | Nimbin suspending agent and preparation thereof |
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| CN1423941A true CN1423941A (en) | 2003-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 02152095 Pending CN1423941A (en) | 2002-12-02 | 2002-12-02 | Nimbin suspending agent and preparation thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228042A (en) * | 2011-05-06 | 2011-11-02 | 浙江泰达作物科技有限公司 | Bactericide suspending agent compounded from difenoconazole and pyraclostrobin and preparation method thereof |
| CN108402061A (en) * | 2018-05-15 | 2018-08-17 | 信阳农林学院 | A kind of biological pesticide composite of prevention tea geometrid |
| CN113841691A (en) * | 2021-11-09 | 2021-12-28 | 成都绿金生物科技有限责任公司 | Oil suspending agent containing azadirachtin and preparation method thereof |
-
2002
- 2002-12-02 CN CN 02152095 patent/CN1423941A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228042A (en) * | 2011-05-06 | 2011-11-02 | 浙江泰达作物科技有限公司 | Bactericide suspending agent compounded from difenoconazole and pyraclostrobin and preparation method thereof |
| CN108402061A (en) * | 2018-05-15 | 2018-08-17 | 信阳农林学院 | A kind of biological pesticide composite of prevention tea geometrid |
| CN108402061B (en) * | 2018-05-15 | 2020-07-10 | 信阳农林学院 | Biopesticide composition for preventing and treating tea geometrid |
| CN113841691A (en) * | 2021-11-09 | 2021-12-28 | 成都绿金生物科技有限责任公司 | Oil suspending agent containing azadirachtin and preparation method thereof |
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