CN102771475B - Micro-capsule suspending agent containing butralin - Google Patents
Micro-capsule suspending agent containing butralin Download PDFInfo
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Abstract
The invention discloses a micro-capsule suspending agent containing butralin. The micro-capsule suspending agent comprises butralin or a compound of butralin and a second active component, and a capsule wall material, an initiating agent, an additive, a cosolvent and a solvent, wherein the butralin or the compound of butralin and the second active component serves as an active ingredient, and the capsule wall material, the initiating agent, the additive, the cosolvent and the solvent serve as the balance of the micro-capsule suspending agent. The second active component is randomly one of alachlor, metolachlor, acetochlor, pretilachlor, propisochlor or butachlor and the like. The micro-capsule suspending agent can be used for controlling annual and perennial weeds in sugarcane fields or corn fields and has the advantages of being long in duration, high in work efficiency, synergetic in effect, safe and environment-friendly and the like.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of microcapsule suspending agent containing butralin.
Background technology
Butralin, be again Amex820, nitre propham, butralin, only bud element, it is phenyl amines weed killer herbicide, to people and animals' low toxicity, butralin is the weed killer herbicide of soil treatment before selectivity bud, and its effect is similar to trefanocide, after medicament enters plant corpus, the merismatic cell division of main suppression, thus suppress weeds young shoot and young root growth.Also can make plant growth regulator to use, control tobacco axillary bud growth.The formulation of current registration is missible oil.
Alachlor, isopropyl methoxalamine, Acetochlor, the third careless amine, propisochlor, butachlor etc. are acetamide-group herbicides, are mainly used in soil treatment, prevent and kill off grassy weed; There are being single dose and the multiple formulations of built agent such as missible oil, aqueous emulsion, microemulsion, wetting powder on the market at present.
At present, the conventional formulation of butralin, alachlor, isopropyl methoxalamine, Acetochlor, the third careless amine, propisochlor, butachlor can not prevent and kill off the weeds in crop whole vegetative period by applied once also needs the weed killer herbicide that fills spray, but so just increase the cost of farmland weeding, some overlay film farmland then cannot fill spray, thus cause the underproduction, bring economic loss.In addition, the pressure that the use that people more and more focus on agricultural chemicals brings environment.In emulsifiable concentrates for agricultural chemicals, the application of a large amount of organic solvent brings serious pollution to natural environment, and the moving state of weed killer herbicide in soil relates to superficial water, particularly the pollution of underground water.Leaching is the important channel of weed killer herbicide movement in soil, causes weed killer herbicide loss to reach 5%, be generally greater than 1% by this approach.Because leaching brings problems to weed killer herbicide use: 1, the downward leaching of weed killer herbicide, cause herbicidal effect not good, and easily cause underground water residual contamination; 2, make weed killer herbicide enter crop root distribution soil layer by leaching, cause potential difference selective herbicide to injure crop; 3, reverse leaching makes weed killer herbicide move to soil table, loses by volatilizing.
Micro-capsule suspension is using macromolecular material as cyst wall or cyst membrane, by chemistry, physics or physicochemical method, active substance as the capsule heart is wrapped up, form a kind of microencapsulation with semipermeability cyst membrane, and they are disperseed using certain concentration stabilize, be suspended in as in the water of continuous phase.Microcapsules of Pesticides refers to liquid pesticide active component (or solid active agent dissolves in a solvent) the coated microscopic, spherical preparation making capsule in the polymer.
Micro-capsule suspension, due to the existence of cyst membrane, has following advantage:
1. oil phase and aqueous phase are separated, hydrolabil pesticide activity component, be difficult to make aqueous emulsion and microemulsion, but can be made into microcapsule formulations.
2. suppress the decomposition of the active component caused because of environmental factor (as light, heat, air, rainwater, soil, microorganism) and other chemical substances etc., improve the stability of medicament itself.
3. cyst membrane can suppress the volatility of agricultural chemicals, shelter its original peculiar smell.And the evaporation rate of volatility agricultural chemicals can be reduced, reduce the extraneoas loss caused by the volatilization of agricultural chemicals, improve the bioavailability of active ingredient.
4. introduce the function of Co ntrolled release, extend its lasting period, reduce quantity and the frequency of dispenser, improve the pressure of agricultural chemicals to environment.
5. the harmfulness of organic solvent is decreased.Many pesticide activity components, due to the physico chemical property of self, are difficult to be processed into environmentally friendly water-based aerosol, and usually can only be processed into missible oil and sell, a large amount of uses of organic solvent bring great burden to environment for human survival.The characteristics such as simultaneously organic solvent flash-point, burning-point be low give storage, transport brings very large inconvenience.
6. for the effectively composite of pesticidal active substance of multiple different performance provides great convenience.
7. poisoning is reduced.Due to the existence of cyst wall, pesticide activity component needs just can manifest its toxicity by the breakage of microcapsules or diffusion, thus can reduce the toxicity of some pesticide activity component to crop.
8. acute toxicity is reduced.Microcapsule formulations significantly can reduce pesticidal preparations product to mammiferous toxicity.
Be not difficult to find out, the above-mentioned functions of microcapsules, no matter for the Improvement and perfection of existing pesticide species, or facilitating the successful exploitation of new varieties of pesticides and apply, will be all extremely important.
Summary of the invention
The object of the invention is the deficiency for said method, propose a kind of high efficiency, lasting period long, there is synergistic function, the eco-friendly microcapsule suspending agent containing butralin.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
Containing the microcapsule suspending agent of butralin, it is characterized in that: it is active component by butralin or butralin and active component II, and all the other complement to the microcapsule suspending agent of 100% with cyst material, auxiliary agent and solvent; Active component II is any one in alachlor, isopropyl methoxalamine, Acetochlor, the third careless amine, propisochlor or butachlor.
Take butralin as active component, its weight content is 0.1% ~ 45%, and preferred weight content is 1% ~ 40%, and the weight content of cyst material is 1% ~ 18%, and the weight content of auxiliary agent is 1% ~ 15%, and the weight content of cosolvent is 1% ~ 25%, and solvent complements to 100%; With butralin and active component II for active component, the weight content of butralin is 0.1% ~ 45%, the weight content of active component II is 0.1% ~ 45%, the weight content of preferred butralin is 1% ~ 40%, and the weight content of active component II is 1% ~ 40%, and the weight content of cyst material is 1% ~ 18%, the weight content of initator is 0.1% ~ 5%, the weight content of auxiliary agent is 1% ~ 15%, and the weight content of cosolvent is 1% ~ 25%, and solvent complements to 100%.
Described cyst material is Lauxite, polyisocyanates, gelatin, gum Arabic or melamine resin.
Described auxiliary agent is one in agriculture breast polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, Tween-80, naphthalenesulfonate formaldehyde condensation compound, the formaldehyde condensation products of methyl naphthalene sulfonic acid sodium, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate or lignosulfonates and emulsifying dispersant or any several combination.
Described cosolvent is dimethylbenzene, methyl alcohol, ethanol, the one of acetone, toluene, benzene, cyclohexanone or fatty acid methyl ester and known solvent or any several combination.
Described initator is hydrochloric acid, glacial acetic acid, ammonium chloride, the one of ethylenediamine, triethylamine or triethanolamine and acid regulator or alkaline conditioner or any several combination.
Described solvent is water.
Concrete preparation method containing butralin microcapsule suspending agent of the present invention is, protect in the reaction vessel of gentle agitation at band, active component is dissolved in cosolvent, then add, auxiliary agent, solvent and cyst material high-speed stirred evenly after, add initator, change normal agitation into, and be progressively warming up to 60 DEG C, then normal agitation 6 hours under 60 DEG C of heat-retaining conditions, obtains the microcapsule suspending agent containing butralin.Technological parameter is: high-speed stirred speeds control is 1000 ~ 1500 revs/min, and the speeds control of normal agitation is 60 ~ 150 revs/min.
The present invention is applicable to the crops such as vegetables and fruit tree such as corn, wheat, cotton, soybean, peanut, potato, carrot, watermelon, garlic, ginger.
The present invention be used for annual gramineous weed and part broad leaved weed and annual nutgrass flatsedge as effective in barnyard grass, lady's-grass, eleusine indica, moleplant seed, green foxtail, cyperus iria etc., simultaneously to broad leaved weed as lamb's-quarters, kitchen garden, recessed head amaranth, chickweed, ox chickweed, Siberian cocklebur, Veronica etc. also have desirable preventive effect.
Compared with prior art, the invention has the beneficial effects as follows:
(1) high efficiency.Introduce the function of Co ntrolled release, extend its lasting period, reduce quantity and the frequency of dispenser, significantly improve work efficiency several times, reduce cost of labor.
(2) Environmental Safety.Microcapsule suspending agent solvent is water, greatly reduces the harmfulness of organic solvent to environment.The characteristics such as simultaneously organic solvent flash-point, burning-point be low give storage, transport brings very large inconvenience.
(3) safety.Due to the existence of cyst wall, pesticide activity component needs just can manifest its toxicity by the breakage of microcapsules or diffusion, significantly can reduce pesticidal preparations product to mammiferous toxicity, also can reduce the toxicity of pesticide activity component to crop simultaneously.
(4) Synergistic, composition of the present invention is having obvious synergistic effect in the preventive effect of weeds, have excellent preventive effect, and the preventive effect comparing each single dose is significantly increased to grass family and broad leaved weed, reduce cost accounting, significant prolongation lasting period simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
Embodiment 1:
0.1% butralin microcapsule suspending agent
Formula: butralin 0.1kg, dimethylbenzene 1kg, hydrochloric acid 0.1kg, agriculture breast castor oil polyoxyethylene ether 1kg, Lauxite 0.1kg, water complements to 100kg.
Preparation technology: protect in the reaction vessel of gentle agitation at band, active component is dissolved in cosolvent, then add auxiliary agent, solvent and cyst material high-speed stirred evenly after, add initator, change normal agitation into, and be progressively warming up to 60 DEG C, then normal agitation 6 hours under 60 DEG C of heat-retaining conditions, obtains the microcapsule suspending agent containing butralin; Technological parameter is: high-speed stirred speeds control is 1000 ~ 1500 revs/min, and the speeds control of normal agitation is 60 ~ 150 revs/min.
According to the preparation technology identical with embodiment 1, preparation following examples.
Embodiment 2:
1% butralin microcapsule suspending agent
Formula: butralin 1kg, fatty acid methyl ester 1.5kg, triethanolamine 0.5kg, polyoxyethylene nonylphenol ether 2.5kg, polyisocyanates 1kg, water complements to 100kg.
Embodiment 3:
5.5% butralin microcapsule suspending agent
Formula: butralin 5.5kg, methyl alcohol 10kg, triethylamine 0.5kg, Tween-80 5kg, gum Arabic 2.5kg, water complements to 100kg.
Embodiment 4:
20% butralin microcapsule suspending agent
Formula: butralin 20kg, ethanol 15kg, ethylenediamine 0.5kg, naphthalenesulfonate formaldehyde condensation compound 10kg, gelatin 6kg, water complements to 100kg.
Embodiment 5:
30% butralin microcapsule suspending agent
Formula: butralin 32kg, cyclohexanone 20kg, ammonium chloride 1kg, the formaldehyde condensation products 10kg of methyl naphthalene sulfonic acid sodium, gum Arabic 10kg, water complements to 100kg.
Embodiment 6:
42% butralin microcapsule suspending agent
Formula: butralin 42kg, toluene 25kg, glacial acetic acid 3kg, castor oil polyoxyethylene ether 12kg, gum Arabic 20kg, water complements to 100kg.
Embodiment 7:
45% butralin microcapsule suspending agent
Formula: butralin 45kg, benzene 25kg, triethanolamine 5kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 15kg, polyisocyanates 4kg, water complements to 100kg.
Embodiment 8:
0.2% butralin alachlor microcapsule suspending agent
Formula: butralin 0.1kg, alachlor 0.1kg, dimethylbenzene 1kg, triethanolamine 0.1kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1kg, polyisocyanates 1kg, water complements to 100kg.
Embodiment 9:
2% butralin Acetochlor microcapsule suspending agent
Formula: butralin 1kg, Acetochlor 1kg, toluene 5kg, ammonium chloride 0.4kg, the formaldehyde condensation products 3.5kg of methyl naphthalene sulfonic acid sodium, melamine resin 4kg, water complements to 100kg.
Embodiment 10:
10.5% butralin alachlor microcapsule suspending agent
Formula: butralin 10kg, alachlor 0.5kg, dimethylbenzene 15kg, triethylamine 0.5kg, ethylenediamine 0.5kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1kg, the formaldehyde condensation products 3.5kg of methyl naphthalene sulfonic acid sodium, polyisocyanates 2.2kg, water complements to 100kg.
Embodiment 11:
15.5% butralin alachlor microcapsule suspending agent
Formula: butralin 15kg, alachlor 0.5kg, toluene 15kg, ethylenediamine 1kg, the formaldehyde condensation products 4.5kg of methyl naphthalene sulfonic acid sodium, polyisocyanates 2.6kg, water complements to 100kg.
Embodiment 12:
20% butralin isopropyl methoxalamine microcapsule suspending agent
Formula: butralin 1kg, isopropyl methoxalamine 19kg, dimethylbenzene 12kg, ammonium chloride 2.5kg, lignosulfonates 3.5kg, Lauxite 10kg, water complements to 100kg.
Embodiment 13:
26% butralin isopropyl methoxalamine microcapsule suspending agent
Formula: butralin 15kg, isopropyl methoxalamine 7kg, dimethylbenzene 3kg, benzene 12kg, hydrochloric acid 0.7kg, ammonium chloride 0.5kg, lignosulfonates 3.5kg, Lauxite 10kg, water complements to 100kg.
Embodiment 14:
31% butralin isopropyl methoxalamine microcapsule suspending agent
Formula: butralin 1kg, isopropyl methoxalamine 30kg, dimethylbenzene 5kg, ammonium chloride 3kg, lignosulfonates 3.5kg, melamine resin 12kg, water complements to 100kg.
Embodiment 15:
The careless amine microcapsule suspending agent of 41% butralin third
Formula: butralin 40kg, the third careless amine 1kg, fatty acid methyl ester 20kg, glacial acetic acid 1.2kg, lignosulfonates 5kg, Lauxite 12kg, water complements to 100kg.
Embodiment 16:
44% butralin propisochlor microcapsule suspending agent
Formula: butralin 4kg, propisochlor 40kg, cyclohexanone 15kg, hydrochloric acid 1.5kg, Tween-80 7kg, Lauxite 18kg, water complements to 100kg.
Embodiment 17:
46% butralin propisochlor microcapsule suspending agent
Formula: butralin 45kg, propisochlor 1kg, ethanol 23kg, hydrochloric acid 1.5kg, Tween-80 7kg, gelatin 18kg, water complements to 100kg.
Embodiment 18:
50% butralin butachlor microcapsule suspending agent
Formula: butralin 5kg, butachlor 45kg, methyl alcohol 25kg, triethylamine 3kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 15kg, gum Arabic 5kg, water complements to 100kg.
The prepared microcapsule suspending agent outward appearance containing butralin is homogeneous suspension liquid.
Below in conjunction with the field control effectiveness test result that the application embodiment of the present invention is carried out, furthermore bright beneficial effect of the present invention.
The embodiment of the present invention is the method adopting indoor virulence and field trial to combine.First by Toxicity Determination, whether synergy or addition after clear and definite two kinds of medicaments are composite by a certain percentage.
Application Example 1 butralin and the composite indoor joint toxicity measuring of alachlor
1.1 for examination target lady's-grass
1.2 reagent agent 95% Pdibutalins; The former medicine of 95% alachlor; Butralin and alachlor different proportion mixture preparation.
1.3 test method
Soil spray-on process is adopted to process.Test adopts the air-dry sandy loam that the content of organic matter≤2%, PH are neutral, permeability is good, sieve, and with basin alms bowl of the same size, soil is filled to basin alms bowl 4/5 place, and adopting infiltrating irrigation mode bottom basin alms bowl, is that soil is completely moistening.By the uniform broadcasting of pretreated lady's-grass seed in soil surface, then earthing 1cm is thick thereon, carries out soil spraying process after sowing 24 hours.
1.4 statistical method
1.4.1 absolute value investigation method.
According to survey data, the fresh weight preventive effect respectively processed by formulae discovery, unit is percentage (%).
E=(C-T)*100/C
In formula:
E---fresh weight preventive effect;
C---contrast weeds fresh weight;
T---process weeds fresh weight.
1.4.2Gowing method
For A and B two pharmacy mix, theoretical preventive effect mixed according to the above ratio presses formulae discovery:
E
0=X+Y（100-X）/100
In formula:
X---Weed-control effect when weed killer herbicide A consumption is P;
Y---Weed-control effect when weed killer herbicide B consumption is Q;
E
0---theoretical preventive effect when theoretical preventive effect when weed killer herbicide A consumption is P+weed killer herbicide B consumption is Q;
Actual preventive effect after E---weed killer herbicide A and weed killer herbicide B are mixed according to the above ratio.
E-E
0> 10% is synergistic effect; E-E
0<-10% is antagonism; E-E
0being worth between ± 10% is addition.
1.5 toxicity test results
The combination of table 1 alachlor, butralin and mixture thereof is to lady's-grass Toxicity Determination result
As can be seen from upper watch test result, under the proportioning combination set by test, alachlor is significantly added and synergistic effect with showing the preventive effect of lady's-grass after butralin mixture, and the composite preventive effect to weeds of these two kinds of compositions is significantly improved, and is applicable to promote in the practical application of land for growing field crops.
The Toxicity Determination of application example 2 isopropyl methoxalamine, butralin and mixture thereof combination to green foxtail
2.1 for examination target green foxtail
2.2 reagent agent 95% Pdibutalins; The former medicine of 93% isopropyl methoxalamine; Butralin and isopropyl methoxalamine different proportion mixture preparation.
2.3 test methods and investigation method are with embodiment 1
2.4 Toxicity Determination results
The Toxicity Determination result of table 2 isopropyl methoxalamine, butralin and mixture thereof combination to green foxtail
As can be seen from upper watch test result, under the proportioning set by test, isopropyl methoxalamine and butralin mixture combine its control efficiency to green foxtail significantly better than single dose, and the more theoretical preventive effect of actual preventive effect after its mixture significantly improves, show and be significantly added or synergistic effect, illustrate that these two kinds of component mixtures have the effect significantly strengthening preventive effect.
The Toxicity Determination of application example 3 Acetochlor, butralin and mixture thereof combination to lamb's-quarters.
3.1 for examination target lamb's-quarters
3.2 reagent agent 95% Pdibutalins; 96% acetochlor tc; Butralin and Acetochlor different proportion mixture preparation.
3.3 test methods and investigation method are with embodiment 1
3.4 Toxicity Determination results
The Toxicity Determination result of table 3 Acetochlor, butralin and mixture thereof combination to lamb's-quarters
As can be seen from the above table, in the several proportionings for the Acetochlor tried and butralin, it is all more satisfactory to the preventive effect of lamb's-quarters, obviously be better than the preventive effect of single dose, under mixture combination, two compositions point to show and are significantly added or synergistic effect, and this is to improving the effect of medicament and reducing usage amount and have very large practical application meaning.
The Toxicity Determination of the careless amine of application example 4 third, butralin and mixture thereof combination to pale persicaria
4.1 for examination target pale persicaria
The 4.2 reagent agents 96% the third former medicine of careless amine; 95% Pdibutalin; Third careless amine and butralin different proportion mixture preparation.
4.3 test methods and investigation method are with embodiment 1
4.4 Toxicity Determination results
The Toxicity Determination result of the careless amine of table 4 third, butralin and mixture thereof combination to pale persicaria
As can be seen from the above results, each mixture that third careless amine and butralin carry out combine its to the control efficiency of pale persicaria comparatively single dose be significantly improved, each medicament after mixture shows significant difference, be embodied in addition or synergy, illustrate that these two kinds of component mixtures have the effect obviously strengthening preventive effect.
The Toxicity Determination of application example 5 propisochlor, butralin and mixture thereof combination to eleusine indica
5.1 for examination target eleusine indica
The former medicine of 5.2 reagent agent 90% propisochlor; 95% Pdibutalin; Propisochlor and butralin different proportion mixture preparation.
5.3 test methods and investigation method are with embodiment 1
5.4 Toxicity Determination results
The Toxicity Determination result of table 5 propisochlor, butralin and mixture thereof combination to eleusine indica
As can be seen from upper table result, after propisochlor and butralin mixture, under different ratio conditions, all show excellent preventive effect, two component mixtures have obvious synergistic effect.
The Toxicity Determination of application example 6 butachlor, butralin and mixture thereof combination to barnyard grass
6.1 for examination target barnyard grass
6.2 reagent agent 95% Pdibutalins; 95% butachlor active compound; Butralin and butachlor different proportion mixture preparation.
6.3 test methods and investigation method are with embodiment 1
6.4 Toxicity Determination results
The Toxicity Determination result of table 6 butachlor, butralin and mixture thereof combination to barnyard grass
As can be seen from upper watch test result, under the proportioning set by test, butachlor and butralin mixture combine its control efficiency to barnyard grass significantly better than single dose, and the more theoretical preventive effect of actual preventive effect after its mixture significantly improves, show and be significantly added or synergistic effect, illustrate that these two kinds of component mixtures have the effect significantly strengthening preventive effect.
Application example 7 land for growing field crops checking example
This example is verified by above each embodiment is carried out land for growing field crops actual service test, and adopt the method for soil spraying to process, obtained experimental result is as follows:
Table 7 each embodiment field experiment result
As can be seen from above result of the test, all process for examination all prevent and kill off effect to several anti-object, single dose mutually relatively in, when medicament usage amount is identical, the preventive effect of microcapsule suspending agent, apparently higher than the preventive effect of the regular dosage forms such as missible oil, illustrates that microcapsule suspending agent has significant effect for raising preventive effect and prolongation lasting period, secondly the preventive effect of each single dose process is all lower than the preventive effect of each proportioning complex preparation, illustrate that butralin and the composite rear preventive effect to weeds of acetamide-group herbicides significantly improve, this two classes mixture of herbicides has obvious synergistic effect, and from follow-up investigation, in all medicaments for examination, the lasting period of complex preparation is obviously longer than the lasting period of each single dose, illustrate that composition described in the present invention not only clearly enhances the preventive effect to weeds, and extend the lasting period of medicament to a great extent, therefore the present invention has obvious advantage in actual applications, not only significantly improve the preventive effect to weeds, reduce the active ingredient usage amount of medicament, also extend the lasting period of medicament to a great extent, great meaning is had to agricultural production.
Claims (5)
1. containing the microcapsule suspending agent of butralin, it is characterized in that: it is that all the other complement to the microcapsule suspending agent of 100% with cyst material, initator, auxiliary agent, cosolvent and solvent with butralin and active component II for active component; Active component II is any one in isopropyl methoxalamine, the third careless amine, propisochlor, butachlor;
Described with butralin and active component II for active component, the weight content of butralin is 0.1% ~ 45%, the weight content of active component II is 0.1% ~ 45%, the weight content of cyst material is 0.1% ~ 20%, the weight content of initator is 0.1% ~ 5%, the weight content of auxiliary agent is 1% ~ 15%, and the weight content of cosolvent is 1% ~ 25%, and solvent complements to 100%; Wherein the weight ratio of butralin and isopropyl methoxalamine is 1:5,1:6.25,1:6.67,1:7.5,1:10,1:15; The weight ratio of butralin and the third careless amine is 1:16,1:20,1:24,1:33,1:40; The weight ratio of butralin and propisochlor is 1:3.6,1:4.5,1:5.4,1:6.75,1:8.1; The weight ratio of butralin and butachlor is 1:8,1:10,1:12,1:18; Described cyst material is Lauxite, polyisocyanates, gelatin, gum Arabic, melamine resin;
Described auxiliary agent is agriculture breast polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, Tween-80, naphthalenesulfonate formaldehyde condensation compound, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate, one in lignosulfonates or any several combination;
Described cosolvent is dimethylbenzene, methyl alcohol, ethanol, the one of acetone, toluene, benzene, cyclohexanone or fatty acid methyl ester or any several combination;
Described initator is hydrochloric acid, glacial acetic acid, ammonium chloride, the one of ethylenediamine, triethylamine, triethanolamine or any several combination.
2. the microcapsule suspending agent containing butralin according to claim 1, is characterized in that:
With butralin and active component II for active component, the weight content of butralin is 1% ~ 40%, the weight content of active component II is 1% ~ 40%, the weight content of cyst material is 1% ~ 18%, the weight content of initator is 0.1% ~ 5%, the weight content of auxiliary agent is 1% ~ 15%, and the weight content of cosolvent is 1% ~ 25%, and solvent complements to 100%.
3. the microcapsule suspending agent containing butralin according to claim 1, is characterized in that: described solvent is water.
4. the microcapsule suspending agent containing butralin according to claim 1, it is characterized in that: the preparation method of described microcapsule suspending agent is, protect in the reaction vessel of gentle agitation at band, active component is dissolved in cosolvent, then add auxiliary agent, solvent and cyst material high-speed stirred evenly after, add initator, change normal agitation into, and be progressively warming up to 60 DEG C, then normal agitation 6 hours under 60 DEG C of heat-retaining conditions, obtains the microcapsule suspending agent containing butralin; Technological parameter is: high-speed stirred speeds control is 1000 ~ 1500 revs/min, and the speeds control of normal agitation is 60 ~ 150 revs/min.
5. the microcapsule suspending agent containing butralin according to claim 1, is characterized in that: it is mainly used in preventing and kill off 1 year raw grassy weed and part broad leaved weed.
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| CN102771475A (en) | 2012-11-14 |
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