Background technology
The chemical name of ether chrysanthemum ester (etofenprox) is: 2-(4-ethoxyl phenenyl)-2-methyl-propyl-3-benzyloxy phenoxy base ether, molecular structure and pyrethroid have similarity, just replaced ester structure, so still classify as the insecticide of pyrethroid with ether structure.Have that insecticidal spectrum is wide, insecticidal activity is high, knock down that speed is fast, the lasting period is long, to the aquatic organism low toxicity, little to natural enemy lethality such as paddy field spiders, to crop safety, advantage such as environmentally friendly.Its main preparation is: formulations such as missible oil, finish, ultra-low-volume formulation, suspending agent, wetting powder.
Though the missible oil good drug efficacy, it is relatively easy, easy to use to prepare, and contains organic solvents such as a large amount of toluene, dimethylbenzene in the missible oil, and environmental pollution is serious, and all has hidden danger in processes such as production, storage, transportation; Suspending agent exists bin stability relatively poor, and drug effect is not as good as missible oil, but emulsified powder is exactly a kind of novel form that grows up on the basis of missible oil.But do not see the report of concrete openly etofenprox emulsified powder and application thereof so far.
Therefore, be necessary to develop a kind of environmentally friendly, good disinsection effect, and to the insecticide variety of crop safety height such as paddy rice, brassicaceous vegetable, use cost economy, to satisfy the needs of agricultural production.
Summary of the invention
The invention provides a kind of etofenprox emulsified powder and manufacture method, the object of the invention is: the etofenprox emulsified powder that a kind of safety, environmental protection, stable storage, good disinsection effect are provided.
Etofenprox emulsified powder of the present invention is made up of following raw materials by weight percent: ether chrysanthemum ester 1~50%, wetting dispersing agent 5~30%, solvent 0~10%, carrier surplus.
Etofenprox emulsified powder of the present invention preferably is made up of following raw materials by weight percent: ether chrysanthemum ester 5~30%, wetting dispersing agent 8~15%, solvent 1~6%, carrier surplus.
Described wetting dispersing agent is a kind of in the following material or at least two kinds: naphthalenesulfonic acid-formaldehyde condensate (dispersant NNO), sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate (Dispersant MF), the sodium salt of alkyl naphthalene sulfonic acid condensation polymer (dispersant D425), anion and the non-ionic surface active agent compound (agricultural newborn 0201B) of solvent, castor oil polyoxyethylene ether (agricultural newborn BY110), alkyl phenyl APEO (farming breast 100), dibutyl naphthalene sulfonic acids calcium (farming breast 2201), calcium dodecyl benzene sulfonate (farming breast 500), alkyl phenol formaldehyde resin polyoxyethylene ether (Nongru-700), phenethyl phenol polyethenoxy polyethenoxy ether (farming breast 1601), castor oil polyoxyethylene (40) ether (agricultural newborn EL-40).
Described solvent is solvent naphtha, dimethylbenzene, toluene or N, dinethylformamide.
Described carrier is a kind of in the following material or at least two kinds: white carbon, diatomite, precipitated calcium carbonate, bentonite, kaolin, attapulgite.
The manufacture method of etofenprox emulsified powder of the present invention, technical process is:
(1) takes by weighing raw material according to following percentage by weight: ether chrysanthemum ester 1~50%, wetting dispersing agent 5~30%, solvent 0~10%, carrier surplus;
(2) ether chrysanthemum ester, solvent is even, mixed liquid adsorption mixes with wetting dispersing agent on carrier again;
(3) mixed raw material is pulverized by airslide disintegrating mill, made it granularity and reach 98% sieve aperture by 45 μ m;
Above-mentioned wetting dispersing agent is a kind of in the following material or at least two kinds: naphthalenesulfonic acid-formaldehyde condensate (dispersant NNO), sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate (Dispersant MF), the sodium salt of alkyl naphthalene sulfonic acid condensation polymer (dispersant D425), anion and the non-ionic surface active agent compound (agricultural newborn 0201B) of solvent, castor oil polyoxyethylene ether (agricultural newborn BY110), alkyl phenyl APEO (farming breast 100), dibutyl naphthalene sulfonic acids calcium (farming breast 2201), calcium dodecyl benzene sulfonate (farming breast 500), alkyl phenol formaldehyde resin polyoxyethylene ether (Nongru-700), phenethyl phenol polyethenoxy polyethenoxy ether (farming breast 1601), castor oil polyoxyethylene (40) ether (agricultural newborn EL-40);
Above-mentioned solvent is solvent naphtha, dimethylbenzene, toluene or N, dinethylformamide;
Above-mentioned carrier is a kind of in the following material or at least two kinds: white carbon, diatomite, precipitated calcium carbonate, bentonite, kaolin, attapulgite.
Another manufacture method of etofenprox emulsified powder of the present invention, technical process is:
(1) takes by weighing raw material according to following percentage by weight: ether chrysanthemum ester 1~50%, wetting dispersing agent 5~30%, solvent 0~10%, carrier surplus;
(2) ether chrysanthemum ester, solvent, wetting dispersing agent are mixed, mixed liquid adsorption is on carrier;
(3) mixed raw material is pulverized by airslide disintegrating mill, made it granularity and reach 98% sieve aperture by 45 μ m;
Above-mentioned wetting dispersing agent is a kind of in the following material or at least two kinds: naphthalenesulfonic acid-formaldehyde condensate (dispersant NNO), sodium lignin sulfonate, calcium lignosulfonate, methyl naphthalene sulfonate formaldehyde condensate (Dispersant MF), the sodium salt of alkyl naphthalene sulfonic acid condensation polymer (dispersant D425), anion and the non-ionic surface active agent compound (agricultural newborn 0201B) of solvent, castor oil polyoxyethylene ether (agricultural newborn BY110), alkyl phenyl APEO (farming breast 100), dibutyl naphthalene sulfonic acids calcium (farming breast 2201), calcium dodecyl benzene sulfonate (farming breast 500), alkyl phenol formaldehyde resin polyoxyethylene ether (Nongru-700), phenethyl phenol polyethenoxy polyethenoxy ether (farming breast 1601), castor oil polyoxyethylene (40) ether (agricultural newborn EL-40);
Above-mentioned solvent is solvent naphtha, dimethylbenzene, toluene or N, dinethylformamide;
Above-mentioned carrier is a kind of in the following material or at least two kinds: white carbon, diatomite, precipitated calcium carbonate, bentonite, kaolin, attapulgite.
The manufacture method of above-mentioned etofenprox emulsified powder preferably is made up of following raw materials by weight percent: ether chrysanthemum ester 5~30%, wetting dispersing agent 8~15%, solvent 1~6%, carrier surplus.
By the etofenprox emulsified powder of the present invention that above-mentioned two kinds of methods are prepared, the performance of its product is not influenced by the preparation method all.
Etofenprox emulsified powder of the present invention, compound method is simple, uses conveniently, and the missible oil of drug effect and ether chrysanthemum ester is suitable, and consumption of organic solvent is less than missible oil far away, and environmental pollution is little, and storing and transportation safety are a kind of desirable insecticide varieties.
Etofenprox emulsified powder of the present invention can directly be converted water dilution back spraying before use by the user and use.Be used to prevent and treat rice hoppers, rice water weevil, brassicaceous vegetable cabbage caterpillar.
Beneficial effect of the present invention: its active ingredient can reach emulsified state in use in water, thereby make ether chrysanthemum ester drug effect be not fully exerted, etofenprox emulsified powder of the present invention has the following advantages: 1) use no or little organic solvent, saved a large amount of organic solvents, avoided organic solvent harm to people and environment when producing and use, production, storage, transportation safety; 2) but the preparation emulsified powder biologically active height, safety is good, drug effect is suitable with ether chrysanthemum emulsifiable concentrate; 3) preparation method is simple, uses conveniently; 4) good fluidity, non-caked, do not lump.
Embodiment
With illustrated embodiments the present invention is done detailed explanation below.
Embodiment one
Present embodiment is 20% etofenprox emulsified powder.
Form by following raw materials by weight percent: ether chrysanthemum ester 20%, dimethylbenzene 4%, farming breast (0201B) 6%, farming breast (700) 3%, white carbon 40%, sodium lignin sulfonate 3%, diatomite complements to 100%.
Manufacture method is: ether chrysanthemum ester, solvent is even, and mixed liquid adsorption mixes with wetting dispersing agent on carrier again; Mixed raw material is pulverized by airslide disintegrating mill, made it granularity and reach 98% sieve aperture by 45 μ m.
Embodiment two
Present embodiment is 25% etofenprox emulsified powder.
Form by following raw materials by weight percent: ether chrysanthemum ester 25%, dimethylbenzene 5%, farming breast (0201B) 5%, farming breast (BY110) 4%, white carbon 45%, dispersant (D425) 3%, attapulgite complements to 100%.
Manufacture method is: ether chrysanthemum ester, solvent, wetting dispersing agent are mixed, and mixed liquid adsorption is on carrier; Mixed raw material is pulverized by airslide disintegrating mill, made it granularity and reach 98% sieve aperture by 45 μ m.
Embodiment three
Present embodiment is 5% etofenprox emulsified powder.
Form by following raw materials by weight percent: ether chrysanthemum ester 5%, dimethylbenzene 1%, farming breast (0201B) 8%, farming breast (1601) 2%, white carbon 10%, sodium lignin sulfonate 3%, bentonite complements to 100%.
Manufacture method is identical with embodiment one or embodiment two.
Example example four
Present embodiment is 10% etofenprox emulsified powder.
Form by following raw materials by weight percent: ether chrysanthemum ester 10%, dimethylbenzene 2%, farming breast (0201B) 6%, farming breast (700) 2%, farming breast (1601) 2%, white carbon 12%, dispersant (NNO) 3%, diatomite complements to 100%.
Manufacture method is identical with embodiment one or embodiment two.
Embodiment five (test of pesticide effectiveness)
Indoor biological activity test measurement result (preventing and treating rice hoppers)
By the test of pesticide effectiveness result of last table as can be seen, 20% etofenprox emulsified powder of the present invention and 20% ether chrysanthemum emulsifiable concentrate is suitable to rice hoppers preventive effect effect.Etofenprox emulsified powder provided by the invention, safety in production, use, storage, transportation not only, environmental pollution is little, and it is simple to have processing technology, and low cost and other advantages has extraordinary application prospect.
Above embodiment is more preferably embodiment a kind of of the present invention, the common variation that those skilled in the art carry out in the technical program scope and replace and should be included in protection scope of the present invention.