CN102669192A - Matrine microcapsule suspension agent and preparation method thereof - Google Patents
Matrine microcapsule suspension agent and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of biological pesticides, and more particularly relates to a matrine-containing pesticide and a preparation method thereof. The matrine-containing pesticide is characterized in that a suspension agent mainly comprises the following components in parts by weight: 1-25 parts of matrine, 5-20 parts of organic solvent, 1-25 parts of capsule wall material, 0.1-3 parts of colloid, 1-20 parts of emulsifier and the balance of de-ionized water to 100 parts. The matrine microcapsule suspension agent and the preparation method thereof aim to solve insufficient dosage form of biological pesticides in China, pollution to the environment and a poor control effect on insect pests. All active components in the scheme are naturally extracted from single-composition sophora flavescens plants, do not contain any chemical pesticides and are safe to natural enemies and the environment; and the novel matrine pesticide has the advantages of long duration of efficacy, anti-photolysis, improvement of utilization rate of pesticides and the like.
Description
Technical field:
The invention belongs to biological pesticide technical field, particularly relate to a kind of active drug composition and contain insecticide of folk prescription matrine and preparation method thereof.
Background technology:
Along with the raising of living standards of the people, agricultural product quality has been required height, not only want mouthfeel good, and require healthy.Height poisons the focus that the residue of pesticide problem that medicine caused of learning to farm more and more becomes social concerns.A large amount of use chemical pesticides is that the higher chemical pesticide use of the key that influences agricultural product quality and safety, particularly toxicity is unreasonable, not only directly endangers the healthy of the people, also influences farmers' income.In addition, along with the protection consciousness of countries in the world to environmental ecology strengthens day by day, high poison, high residue chemical pesticide and the formulation that falls behind will receive import and export restriction.So these high-toxic pesticides and environment had pollute the formulations of pesticide and can be eliminated by market gradually.
Though the development of present domestic biopesticide, exploitation and practical application improve; But the control pest are mostly also in the formulation of using chemical pesticide and falling behind already; Such as missible oil; Microemulsion or the like, but these formulations have very big pollution to environment, and the dispenser personnel are also had certain risk; Though microemulsion is smaller to environmental hazard; But its drug effect is undesirable; Therefore the development of new biopesticide and the formulations of pesticide environmentally friendly and that the lasting period is long are most important, not only can improve the agricultural product quality and the market competitiveness, promote China agricultural chemicals enterprise to march the world market; Guarantee stable sustainableization development, ensure that broad masses of the people's life security all has very significant meaning with building a harmonious society.
Kuh-seng is China's Chinese herbal medicine commonly used, is distributed widely in China Inner Mongol, the northwest; Areas such as North China have the effect of antibiotic, anti-inflammatory and desinsection, and main component has multiple alkaloids such as matrine, oxymatrine, Chinese scholartree choline; These alkaloid general designation Banlangens; Matrine is widely used in the agricultural insecticide in recent years because its low toxicity, noresidue, under natural environment degraded rapid, the quality safety of agricultural products in China is greatly improved.
But up to the present, we do not find that also effective medicinal ingredient is merely precedent and report that the matrine folk prescription is made suspending agent.
Summary of the invention:
Goal of the invention: the invention provides a kind of matrine microcapsule suspending agent and preparation method thereof, its objective is the deficiency that solves China's biopesticide formulation, to the pollution of environment and the problem that the pest controling effect aspect is existed.
Technical scheme:
A kind of matrine microcapsule suspending agent is characterized in that: this suspending agent by weight, its constituent is mainly: 1 ~ 25 part of Banlangen, 5 ~ 20 parts of organic solvents, 1 ~ 25 part of cyst material, 0.1 ~ 3 part in colloid, 1 ~ 20 part of emulsifier, deionized water are supplied 100 parts.
Said Banlangen is to purify from the extraction of radix sophorae the inside and through repeated multiple times to make the Banlangen that forms, and its matrine content is more than 30%.
Said organic solvent is that in xylol, cyclohexanone, DY-5, the castor oil one or more combine.
Described cyst material is a urea-formaldehyde resin aqueous solution.
Said colloid is that in gelatin, carragheen, Sodium Polyacrylate, xanthans, the sodium cellulose glycolate one or more combine.
Said emulsifier is one or more combinations in natural soap powder, tween, AEO, APES, NPE, the different tridecanol polyoxyethylene ether; Wherein natural soap powder is a kind of material that from the saponin natural plants, extracts.
This suspending agent also includes antifreezing agent and preservative; The relation that is equipped with is 1 ~ 25 part of Banlangen by weight, 5 ~ 20 parts of organic solvents, and 1 ~ 25 part of cyst material, 0.1 ~ 3 part in colloid, 1 ~ 20 part of emulsifier, 1 ~ 6 part of antifreezing agent, 0.01 ~ 1 part of preservative, deionized water are supplied 100 parts; Described antifreezing agent is one or more combinations in ethylene glycol, propane diols, glycerine, the polyethylene glycol; Described preservative is one or more combinations in Sodium Benzoate, potassium sorbate, the formaldehyde.
A kind of preparation method of aforesaid matrine microcapsule suspending agent is characterized in that: this method is carried out as follows:
(1), extracts Banlangen by conventional method;
(2), by weight, 1～25 part of Banlangen, 5～20 parts of organic solvents, 1～25 part of cyst material, 0.1～3 part in colloid, 1～20 part of emulsifier, deionized water are supplied 100 parts;
(3), at normal temperatures matrine is mixed stirring with organic solvent, make it whole dissolvings, add cyst material down at the state that stirs then, add colloid again, form oil-in-water emulsion with the stirring of per minute 1500 rotating speeds;
(4), reduce revolution to 1000 and change, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed dropped to 800 rev/mins, be warmed up to 45 ~ 55 ℃, continue to stir, add sodium hydroxide adjusting pH value to 7.0 after 2 hours;
(5), under stirring, add emulsifier, stirs and adds balance of deionized water after 2 hours and supply 100% and continue stirring 2 hours.
In step (5), add in the emulsifier antifreezing agent and preservative again; The amount of adding is 1 ~ 20 part of emulsifier by weight, and 1 ~ 6 part of antifreezing agent stirs and adds balance of deionized water after 2 hours and supply 100% and continue stirring 2 hours.
Advantageous effect:
The present invention has the following advantages:
1, the present invention processes effective ingredient by traditional Chinese herbal medicine matrine extraction.Belong to the environmental protection organic insecticide, environmentally safe, be to be used to produce one of best pesticide product of green agricultural product, the normal phase of process facts have proved that this product can be used for the culture of Chinese mitten crab of paddy field, i.e. pest control.Can harmful effect not arranged again to river crab.
2, the drug effect lasting period long, farm chemical ingredients slowly discharges after the dispenser, increases insecticidal effect; Again owing to add high effective additives and adopt the advanced formulations of pesticide; So, improved the quick-acting of product, increased the effective rate of utilization of agricultural chemicals; Reduce the application times in the agricultural product production process, the insect rate of knockdown reached more than 90% in 24 hours.
3, be difficult for developing immunity to drugs: because matrine is the active ingredient from the plant extract of occurring in nature; Reduced direct stimulation to insect; The long-term use facts have proved that insect does not develop immunity to drugs to the matrine microcapsule suspending agent, and it is still good to use other agricultural chemicals to produce the resistant insect preventive effect to control.
4, safety is good: because this medicament does not contain harmful solvent, to people, animal safety, natural enemy is not had injury, do not have three and cause, do not have accumulation and residual in vivo.
5, can with alkaline combined use of pesticides: because this medicament is microcapsule suspending agent, its active ingredient and water and the isolation of alkaline agricultural chemicals are used with alkaline agricultural chemicals simultaneously, and its stability is unaffected;
6, have ' one medicine triple effect ' effect: this product not only has good desinsection, acaricidal action, and fungi is had certain inhibition or kill activity.Contain the required multiple nutritional components of plant growing simultaneously, can promote plant growing.
Embodiment: the present invention is done further explanation below in conjunction with embodiment and experimental technique:
A kind of matrine microcapsule suspending agent, this suspending agent by weight, its constituent is mainly: 1 ~ 25 part of Banlangen, 5 ~ 20 parts of organic solvents, 1 ~ 25 part of cyst material, 0.1 ~ 3 part in colloid, 1 ~ 20 part of emulsifier, deionized water are supplied 100 parts.This suspending agent can also comprise antifreezing agent and preservative; The relation that is equipped with is 1 ~ 6 part of antifreezing agent by weight, and 0.01 ~ 1 part of preservative, deionized water are supplied 100 parts;
Said Banlangen is to purify from the extraction of radix sophorae the inside and through repeated multiple times to make the Banlangen that forms, and its matrine content is more than 30%.Organic solvent is that in xylol, cyclohexanone, DY-5, the castor oil one or more combine.Described cyst material is a urea-formaldehyde resin aqueous solution.Said colloid is that in gelatin, carragheen, Sodium Polyacrylate, xanthans, the sodium cellulose glycolate one or more combine.Said emulsifier is one or more combinations in natural soap powder, tween, AEO, APES, NPE, the different tridecanol polyoxyethylene ether; Wherein natural soap powder is a kind of material that from the saponin natural plants, extracts.Described antifreezing agent is one or more combinations in ethylene glycol, propane diols, glycerine, the polyethylene glycol; Described preservative is one or more combinations in Sodium Benzoate, potassium sorbate, the formaldehyde.
Concrete preparation method is:
The preparation of Banlangen: it can be operated by conventional method; At first with the radix sophorae raw material pulverizing, cross 60 eye mesh screens to the raw material of pulverizing after, place extractor; Ethanol to the mass fraction 95% that wherein adds 10 times of raw materials quality; Feed steam to the extractor interlayer, be warming up to 75～85 ℃, refluxing extraction 7～8h; Repeat to extract 3 times, carry out vacuum filtration after each extraction is accomplished, extract is collected, with extract heating (temperature is controlled at 58 degree, and pressure is negative 0.085 MPa), reflux through the condenser cooling after the solvent evaporates in the immersion liquid with distillation under vacuum.The immersion liquid of isolating solvent is added n-hexane carry out layering, remove degrease after the layering, surplus liquid carries out secondary stratification, and each separation time 35～45 minutes reclaims n-hexane then.Immersion liquid after the layering is put in the refrigerated cylinder flocculates, make the residual impurity deposition, this moment, temperature was controlled between 3～5 degree.
The immersion liquid collection filling of flocculation is concentrated, boil off the moisture in the immersion liquid with heating jacket, make it become paste, the content of Banlangen is more than 80% in the ointment that goes out at last.Matrine content is more than 30%.
Matrine microcapsule suspending agent preparation method: by weight, constituent of the present invention comprises, 1～25 part of Banlangen, 5～20 parts of organic solvents; 1～25 part of cyst material, 0.1～3 part in colloid, 1～20 part of emulsifier; 1～6 part of antifreezing agent, 0.01～1 part of preservative, deionized water are supplied 100 parts.
At normal temperatures the matrine ointment is mixed stirring with organic solvent, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution then.Add colloid again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.
1, reduces revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir, add sodium hydroxide adjusting pH value to 7.0 after 2 hours.
2, under stirring, add an amount of emulsifier, antifreezing agent, preservative stirs and adds balance of deionized water after 2 hours and supply 100% and continue stirring 2 hours.
Embodiment 1 preparation 1% matrine microcapsule suspending agent, by weight:
Matrine ointment 3.4g is mixed stirring with castor oil solvent 5g, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution 10g then.Add xanthans 2g again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.Reduce revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir to form and stablize micro-capsule, adding sodium hydroxide adjusting pH value to 7.0 after 2 hours.Under stirring, add natural soap powder 13g, ethylene glycol 5g, potassium sorbate 0.6g stirred after 2 hours, and adding 61g deionized water is supplied 100% continuation stirring and was promptly made the matrine microcapsule suspending agent in 2 hours.
Embodiment 2 preparations 2.5% matrine microcapsule suspending agent, by weight:
Matrine ointment 8.4g is mixed stirring with DY-5 solvent 10g, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution 20g then.Add gelatin 0.6g again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.Reduce revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir to form and stablize micro-capsule, adding sodium hydroxide adjusting pH value to 7.0 after 2 hours.Under stirring, add tween 15g, glycerine 3g, Sodium Benzoate 0.5g stirred after 2 hours, and adding 42.5g deionized water is supplied 100% continuation stirring and was promptly made the matrine microcapsule suspending agent in 2 hours.
Embodiment 3 preparations 3% matrine microcapsule suspending agent, by weight:
Matrine ointment 10g is mixed stirring with DY-5 solvent 8g, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution 15g then.Add xanthans 0.8g again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.Reduce revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir to form and stablize micro-capsule, adding sodium hydroxide adjusting pH value to 7.0 after 2 hours.Under stirring, add APES 10g, propane diols 4g, formaldehyde 0.8g stirred after 2 hours, and adding 51.4g deionized water is supplied 100% continuation stirring and was promptly made the matrine microcapsule suspending agent in 2 hours.
Embodiment 4 preparations 5% matrine microcapsule suspending agent, by weight:
Matrine ointment 16.7g is mixed stirring with DY-5 solvent 10g, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution 15g then.Add xanthans 1g again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.Reduce revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir to form and stablize micro-capsule, adding sodium hydroxide adjusting pH value to 7.0 after 2 hours.Under stirring, add NPE 10g, ethylene glycol 3g, potassium sorbate 0.3g stirred after 2 hours, and adding 44g deionized water is supplied 100% continuation stirring and was promptly made the matrine microcapsule suspending agent in 2 hours.
Embodiment 5 preparations 7.5% matrine microcapsule suspending agent, by weight:
Matrine ointment 25g is mixed stirring with DY-5 solvent 15g, make it whole dissolvings, under the state that stirs, add a certain amount of urea-formaldehyde resin solution 20g then.Add xanthans 0.6g again and stir, form oil-in-water emulsion with per minute 1500 rotating speeds.Reduce revolution, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed is dropped to 800 rev/mins, be warmed up to about 50 degree, continue to stir to form and stablize micro-capsule, adding sodium hydroxide adjusting pH value to 7.0 after 2 hours.Under stirring, add natural soap powder 15g, ethylene glycol 5g, Sodium Benzoate 0.4g stirred after 2 hours, and adding 19g deionized water is supplied 100% continuation stirring and was promptly made the matrine microcapsule suspending agent in 2 hours.
Application example and effect comparison
Application examples 1
Application site: vegetables base, Yanqing County, Beijing
Use crop: brassicaceous vegetable
Main controlling object: cabbage caterpillar;
What used in these vegetables base is 1.0% matrine microcapsule suspending agent insecticide in the instance one, and effective ingredient is a matrine, and the control brassicaceous vegetable is in the control efficiency of cabbage caterpillar.The test spraying area is 8 mu, per two mu of first experimental considerations units.
Dispenser weather: fine day
Spraying time: at dusk
1.0% matrine microcapsule suspending agent to make among the embodiment 1 is an experimental pharmacy with contrast medicament 1.0% matrine missible oil; (each block area is two mu of ground as practice ground to choose two identical adjacent experiment plot of condition; 667 square metres/mu); Respectively 1200 times, 850 times, 500 times liquid of dilute liquid medicine and respectively get 30kg dilution after soup be administered to the adjacent plot of 2 the same terms respectively and be the contrast experiment of 3 kinds of products with the adjacent plot that 1500 times of liquid medicaments of 4.5% r dilution are administered to another the same terms, from outside watch 1.0% matrine microcapsule suspending agent dilution properties good.3 days preventive effect results after the dispenser show that diluting 1200 times, 850 times, 500 times liquid processing control cabbage caterpillars has the average preventive effect of wherein 500 times, 850 times of good quick-acting to be superior to 1200 times of liquid control efficiency.
1.0% matrine microcapsule suspension dilution agent dilutes 1200 times, 850 times, 500 times with 1.0% matrine missible oil for 1200 times, 850 times, 500 times and does contrast; The preventive effect result contrast of dispenser after 3 days is respectively 90.22%, 95.47%, 96.70% and 74.68%, 75.94%, 78.21% result and shows that 1.0% matrine microcapsule suspending agent control efficiency is much better than 1.0% matrine missible oil; And can be to not doing the deposits yields poisoning; Environmentally safe is to beneficial organism safety.
1.0% matrine microcapsule suspension dilution agent is done preventive effect with 1500 times of 4.5% r dilutions for 1200 times, 850 times, 500 times and is contrasted; The average preventive effect of 1.0% matrine microcapsule suspending agent is respectively 89.80%, 96.08%, 97.18%, and the average preventive effect of 4.5% r is 76.50%.Fact proved that the preventive effect of 850 times, 500 times of 1.0% matrine microcapsule suspension dilution agents all is higher than 4.5% r, on average anti-efficient is 96.62%, can substitute the chemical pesticide of high poison, can satisfy the demand of preventing and treating of brassicaceous vegetable fully.And, do not influence and propagate pollination beneficial organism safety such as close honeybees.Improve brassicaceous vegetable output.
1200 times, 850 times, 500 times of 1.0% matrine microcapsule suspending agents, processing control brassicaceous vegetable safety do not have poisoning and replace some existing chemical insecticides.Having obtained the approval of vast farmers in the locality, is to extract formulated from natural plants because matrine belongs to traditional Chinese herbal medicine again.Belong to long-lasting environmental protection organic insecticide, insect is difficult for developing immunity to drugs, and the lasting period is long, has increased the crops control efficiency.
The comparison that experimentizes of the matrine microcapsule suspending agent that said method is obtained and other insecticides or matrine missible oil, see the following form:
Conclusion: can find out from above experiment, this programme 14 days to 28 days after dispenser, effect continues obviously to exceed other products 13 ~ 49%.
Application examples 2
The Panjin raising crabs in paddy field is this regional leading industry; Continuous expansion along with paddy rice weevil generation area; Increasing the weight of year by year of occurrence degree rings increasingly to crab water in field rice output scape, support in the crab rice field paddy rice weevil and prevent and treat difficult point and be: use high-toxic pesticide to produce fatal influence to river crab; Do not use the very big farmers' income that influences of rice yield decline; Bring into use 2.5% matrine microcapsule suspending agent in 2011, under county's plant protection unit and east big enlightening gram technical staff's guidance, be carried out to the test of crab field and crab flower field control rice water weevil
Experimental condition and method: the 2.5% matrine microcapsule suspending agent of getting embodiment 2 preparations is an example; To insects such as 10 mu of (1 mu=667 square metres) crab water in field rice control rice water weevils, application method: spraying, with the mu consumption be 60,80ml is example; Dilute 1000 times, spraying time: at dusk.
Through the test in a week, we conscientiously write down first day, the data number of three time periods such as four days, seven days; We draw deinsectization effect comparison and analysis through data: the result shows; It is 60ml that matrine becomes crab field consumption, and preventive effect is 89.2% and 50ml is 79.5%
River crab reaction: see no matter become still Sea crab field, crab field, do not have the phenomenon of juvenile crab top from investigation result, one-tenth crab field does not have dead crab phenomenon, laboratory test 100ml all do not have dead crab phenomenon after the dispenser in 20 days.The mu consumption is that 60-80ml is best, and crab flower field should not be used in a large number, thus obtained using widely and approval in this area, and improve the per mu yield in rice water crab field, the existing most of areas that has been applied to paddy rice producing region, northeast.
Application examples 3
Injurious forest-insect flies anti-the application in the Jianping to get embodiment 4 uses 5% matrine microcapsule suspending agent; The Jianping is the county that area of woods accounts for significant proportion; The forest in this county problem of preventing and treating is a difficult problem of the gloomy anti-forest department in county always; Used chemical pesticide extension rate height and all can produce extremely adverse influence to beneficial organism and ecotope, extension rate is low, and the pest control effect has just reduced.The insect of back several generations is developed immunity to drugs, because injurious forest-insect has produced very strong resistance to chemical pesticide.So the relevant personnel of our forestry are seeking a kind of high-performance bio source pesticide that can solve this contradiction always.
The matrine microcapsule suspending agent is a kind of efficient, low toxicity insecticidal/acaricidal agent.Its insecticidal spectrum is wider.It has tags and stomach poison function.Its insecticidal mechanism is a never poison, makes neural paralysis behind insect (mite) the contact medicament, and protein coagulating stops up valve and death by suffocation.
Produce resistance problem to insects such as this area caterpillar, willow boat pretty young woman; We choose higher concentration matrine microcapsule suspending agent and experimentize; Use 5% matrine microcapsule suspending agent that forest defoliators such as pine caterpillars, willow boat pretty young woman, U.S. Bai E were prevented and treated between the 2-3 instar larvae emergence period, with 800-1000 times of liquid of 5% matrine microcapsule suspending agent with aircraft low latitude even spraying.
This time using and flying anti-area is 500 mu of forest lands, uses 5% matrine microcapsule suspending agent in flying anti-the application, to obtain outstanding effect, obviously is superior to other agricultural chemicals.Forest defoliators such as pine caterpillars, willow boat pretty young woman U.S. Bai E are not produced resistance, and preventive effect is the best product of instead of chemical agricultural chemicals all more than 89% two days later.
Claims (9)
1. matrine microcapsule suspending agent is characterized in that: this suspending agent by weight, its constituent is mainly: 1 ~ 25 part of Banlangen; 5 ~ 20 parts of organic solvents, 1 ~ 25 part of cyst material, 0.1 ~ 3 part in colloid; 1 ~ 20 part of emulsifier, deionized water are supplied 100 parts.
2. matrine microcapsule suspending agent according to claim 1 is characterized in that: said Banlangen is to purify from the extraction of radix sophorae the inside and through repeated multiple times to make the Banlangen that forms, and its matrine content is more than 30%.
3. matrine microcapsule suspending agent according to claim 1 is characterized in that: said organic solvent is that in xylol, cyclohexanone, DY-5, the castor oil one or more combine.
4. matrine microcapsule suspending agent according to claim 1 is characterized in that: described cyst material is a urea-formaldehyde resin aqueous solution.
5. matrine microcapsule suspending agent according to claim 1 is characterized in that: said colloid is that in gelatin, carragheen, Sodium Polyacrylate, xanthans, the sodium cellulose glycolate one or more combine.
6. matrine microcapsule suspending agent according to claim 1 is characterized in that: said emulsifier is one or more combinations among natural soap powder, tween, HHH AEO HHH, APES, NPE, the different tridecanol polyoxyethylene ether HHH of HHH; Wherein natural soap powder is a kind of material that from the saponin natural plants, extracts.
7. matrine microcapsule suspending agent according to claim 1 is characterized in that: this suspending agent also includes antifreezing agent and preservative; The relation that is equipped with is 1 ~ 25 part of Banlangen by weight, 5 ~ 20 parts of organic solvents, and 1 ~ 25 part of cyst material, 0.1 ~ 3 part in colloid, 1 ~ 20 part of emulsifier, 1 ~ 6 part of antifreezing agent, 0.01 ~ 1 part of preservative, deionized water are supplied 100 parts; Described antifreezing agent is one or more combinations in ethylene glycol, propane diols, glycerine, the polyethylene glycol; Described preservative is one or more combinations in Sodium Benzoate, potassium sorbate, the formaldehyde.
8. the preparation method of a matrine microcapsule suspending agent as claimed in claim 1, it is characterized in that: this method is carried out as follows:
(1), extracts Banlangen by conventional method;
(2), by weight, 1～25 part of Banlangen, 5～20 parts of organic solvents, 1～25 part of cyst material, 0.1～3 part in colloid, 1～20 part of emulsifier, deionized water are supplied 100 parts;
(3), at normal temperatures matrine is mixed stirring with organic solvent, make it whole dissolvings, add cyst material down at the state that stirs then, add colloid again, form oil-in-water emulsion with the stirring of per minute 1500 rotating speeds;
(4), reduce revolution to 1000 and change, stirs and added watery hydrochloric acid in 10 minutes then and regulate pH value to 2.0, stir again after 1 hour rotating speed dropped to 800 rev/mins, be warmed up to 45 ~ 55 ℃, continue to stir, add sodium hydroxide adjusting pH value to 7.0 after 2 hours;
(5), under stirring, add emulsifier, stirs and adds balance of deionized water after 2 hours and supply 100% and continue stirring 2 hours.
9. the preparation method of matrine microcapsule suspending agent according to claim 8 is characterized in that: in step (5), add in the emulsifier antifreezing agent and preservative again; The amount of adding is 1 ~ 20 part of emulsifier by weight, and 1 ~ 6 part of antifreezing agent stirs and adds balance of deionized water after 2 hours and supply 100% and continue stirring 2 hours.
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| CN103539545A (en) * | 2013-10-16 | 2014-01-29 | 苏州市石桥生态农业科技园（普通合伙） | Organic microcapsule fertilizer containing Chinese toon |
| CN103651595A (en) * | 2013-12-30 | 2014-03-26 | 成都新朝阳作物科学有限公司 | Pesticide composition containing lightyellow sophora root and Caesalpinia crista extracts, and preparation method and application thereof |
| CN104824039A (en) * | 2015-06-02 | 2015-08-12 | 张文龙 | Tea saponin EW (emulsion in water) compound plant source organic insecticide and preparation method thereof |
| CN105963807A (en) * | 2016-06-21 | 2016-09-28 | 浙江相伴乳胶制品有限公司 | Condom with antisepsis and anti-inflammation functions and preparation method thereof |
| CN106212485A (en) * | 2016-07-28 | 2016-12-14 | 山东省农药科学研究院 | Matrine microcapsule formulation and preparation method thereof |
| CN106942218A (en) * | 2016-07-28 | 2017-07-14 | 山东省农药科学研究院 | Microcapsule formulation, soil treatment nematode micro-capsule suspension and preparation method thereof |
| CN106857570A (en) * | 2016-12-30 | 2017-06-20 | 新昌县赛因斯生物科技有限公司 | A kind of preparation and its preparation and application for preventing and treating Bemisia tabaci |
| CN106929031A (en) * | 2017-03-24 | 2017-07-07 | 孙志廷 | It is a kind of with broad spectrum disinfestation and the good Nutrition Soil of water retention property and preparation method thereof |
| CN106962374A (en) * | 2017-03-24 | 2017-07-21 | 孙志廷 | A kind of biomass carbon particle for loading matrine chitosan sustained-release microsphere and preparation method thereof |
| CN107382489A (en) * | 2017-08-03 | 2017-11-24 | 刘国备 | A kind of Lauxite starch bilayer coated slow-release compound fertilizer and preparation method thereof |
| CN107382490A (en) * | 2017-08-03 | 2017-11-24 | 刘国备 | A kind of foliar fertilizer with broad spectrum disinfestation and efficient stable and preparation method thereof |
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