CN102511476B - Spray assistant and preparation method thereof - Google Patents
Spray assistant and preparation method thereof Download PDFInfo
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- CN102511476B CN102511476B CN2011102942649A CN201110294264A CN102511476B CN 102511476 B CN102511476 B CN 102511476B CN 2011102942649 A CN2011102942649 A CN 2011102942649A CN 201110294264 A CN201110294264 A CN 201110294264A CN 102511476 B CN102511476 B CN 102511476B
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Abstract
The invention which relates to the pesticide assistant field discloses a spray assistant and a preparation method thereof. The spray assistant of the invention comprises, by mass, 0.5-2.5% of azone, 0.5-2.5% of trimethoxysilane, 77-83% of methylated vegetable oil, 10-15% of a nonionic surfactant NP-1, 0.1% of an ultraviolet ray absorbent UV-P, and the balance vegetable oil. The spray assistant of the invention, which can preserve original advantages of a vegetable oil spray assistant, allows the wetting performance to be improved by adding azone and trimethoxysilane, so a pesticide can efficiently penetrate, the drug effect is improved, application amounts of the spray assistant and the pesticide can be reduced under a same drug effect, and the cost and the pesticide residual are reduced, thereby the spray assistant can be widely applied to the agricultural field.
Description
Technical field
The present invention relates to the insecticides adjuvant field, relate to specifically a kind of spray adjuvants and preparation method thereof.
Background technology
Spray adjuvants is a kind of change spray solution physical features and helps active component to infiltrate through the preparation of target (as crop, weeds, insect).Agricultural chemicals, fertilizer, health agent etc. in use, mainly act on target through spray process at present, if but do not add spray adjuvants, the effect that agricultural chemicals, fertilizer or health agent produce is poor, consumption is large, has not only increased cost, and environment and operator have been caused to harm.
Spray adjuvants mainly contains three types, and the one, mineral oil auxiliary agent, main material are machine oil, diesel oil etc., but poor with target compatibility and safety; The 2nd, by nonionic surface active agent and the pure auxiliary agent that forms, domestic common commodity have YZ-901, YZ905, AA921, drought spray treasured etc., but use this spray adjuvants requirement environment relative moisture more than 65%, temperature under 28 above drought conditions, and result of use is poor; The 3rd, the vegetable oil auxiliary agent, domestic goods have medicine to laugh at treasured, external product have the U.S. fast 7, Australia believe preciously and Hessen etc., this class spray adjuvants is no matter on service condition or on result of use, all be better than the first two spray adjuvants, thereby is a kind of spray adjuvants commonly used at present.
The vegetable oil spray adjuvants is generally the mixture of nonionic surface active agent of the rapeseed oil of esterification, and itself and target compatibility are good, to crop safety, and resistance of rainwater washing against.But, the vegetable oil spray adjuvants is in normal usage amount scope, can not assist agricultural chemicals, fertilizer or health agent etc. to reach effect preferably, if further improve effect, will on the basis of original usage amount, strengthen consumption, yet vegetable oil spray adjuvants cost is higher, and this is undoubtedly a kind of financial burden concerning numerous users.
Summary of the invention
In view of this, the object of the invention is to provide a kind of spray adjuvants and preparation method thereof, can assist agricultural chemicals to improve drug effect.
For realizing purpose of the present invention, the present invention adopts following technical scheme:
A kind of spray adjuvants, be calculated in mass percent, comprise vegetable oil, 10-15% non-ionic surface active agent NP-10 and 0.1% Ultraviolet Absorber UV-P of 0.5-2.5% azone, 0.5-2.5% trimethoxy silane, 77-83% esterification, surplus is supplied with vegetable oil.
Azone, chemical name is Azone, azone can promote the infiltration of insecticide to polypide, promote the infiltration of weed killer herbicide to weeds, wetting plant leaf surface, promote the absorption of plant to medicine, so azone can improve the effect of effective ingredient and reduce drug dose, thereby reduce the pollution of agricultural chemicals to environment, except low use cost.
Trimethoxy silane is a kind of agricultural organic silicon surfactant, and it can effectively increase liquid crop and the coverage rate on pest body is arranged and sprawl face, reaches better spray effect, and the liquid effective rate of utilization improves greatly, reduces simultaneously residue of pesticide.In addition, trimethoxy silane can impel agricultural chemicals to be attached on plant leaf surface, in by the pore rapid osmotic, to blade face, organizing, improves wettability.Because the trimethoxy silane time of penetration is short, liquid is attached on the cured matter of harmful organisms, air duct and pore by pest infiltrate rapidly pest inside, before harmful organisms internal secretion resistance protein enzyme decomposes liquid, liquor strength has reached the lethal dose of pest, is difficult for producing resistance.
The present invention adds azone and trimethoxy silane on existing vegetable oil spray adjuvants basis, improve its wet performance keeping on the advantage of original vegetable oil spray adjuvants, makes the agricultural chemicals can high-effective penetrating, improves drug effect.
Wherein, the mass percent of described azone is preferably 1.5%, and the mass percent of described trimethoxy silane is preferably 1.5%, and the mass percent of the vegetable oil of described esterification is preferably 80%.
Vegetable oil of the present invention is preferably rapeseed oil, sunflower oil, soybean oil and neem oil, all can be by commercially available acquisition, and the vegetable oil of esterification of the present invention preferably carries out the esterification acquisition by above-mentioned vegetable oil, and the esterification method is this area routine techniques.
In addition, for the performance that makes spray adjuvants of the present invention is more stable, in spray adjuvants of the present invention, also add the non-ionic surface active agent NP-10 of an emulsification, be preferably 12%; Protect in addition active ingredient by ultraviolet, not solved ultra-violet absorber and be preferably UV-P.
The present invention also provides a kind of preparation method of spray adjuvants, be calculated in mass percent, under 50 ℃ of constant temperature, in the vegetable oil of 77-83% esterification, add 10-15% non-ionic surface active agent NP-10 to mix, then add the azone of 0.5-2.5% to mix, then add the trimethoxy silane of 0.5-2.5% to mix, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with vegetable oil, after filtration and get final product.
Wherein, the mass percent of described azone is preferably 1.5%, the mass percent of described trimethoxy silane is preferably 1.5%, and the mass percent of the vegetable oil of described esterification is preferably 80%, and non-ionic surface active agent NP-10 mass percent is preferably 12%.Described vegetable oil is preferably rapeseed oil, sunflower oil, soybean oil and neem oil, all can be by commercially available acquisition, and the vegetable oil of esterification of the present invention preferably carries out the esterification acquisition by above-mentioned vegetable oil, the esterification method is this area routine techniques.
In 70% propiconazole emulsifiable concentrate that adds spray adjuvants of the present invention and commercially available certain vegetable oil spray adjuvants (not adding azone and trimethoxy silane) is prevented and treated the test of sigatoka, the 70% propiconazole emulsifiable concentrate formulation rate that adds spray adjuvants of the present invention is identical with the 70% propiconazole emulsifiable concentrate formulation rate that adds commercially available certain vegetable oil spray adjuvants, but the former prevents and treats the drug effect of sigatoka apparently higher than the latter, shows that spray adjuvants of the present invention can assist agricultural chemicals to improve drug effect.And, according to above-mentioned result of the test, can know by inference, in the situation that identical drug effect, the usage amount of spray adjuvants of the present invention and agricultural chemicals can reduce, and has guaranteed the safety of operator and environment, has reduced cost and residue of pesticide.
As can be known by above technical scheme, spray adjuvants of the present invention adds azone and trimethoxy silane on the advantage that keeps original vegetable oil spray adjuvants, improve its wet performance, make the agricultural chemicals can high-effective penetrating, improve drug effect, simultaneously under identical drug effect, can reduce the usage amount of spray adjuvants and agricultural chemicals, reduce cost and residue of pesticide, can be widely used in agriculture field.
Embodiment
The embodiment of the invention discloses a kind of spray adjuvants and preparation method thereof.Those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is, all similarly replace and change apparent to those skilled in the art, and they all are deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, and the related personnel obviously can change product as herein described or suitably change and combination within not breaking away from content of the present invention, spirit and scope, realize and apply the technology of the present invention.
In order further to understand the present invention, below in conjunction with embodiment, a kind of spray adjuvants provided by the invention and preparation method thereof is elaborated.
Embodiment 1: prepare spray adjuvants of the present invention
Be calculated in mass percent, under 50 ℃ of constant temperature, in 80% esterification rapeseed oil, add 15% non-ionic surface active agent NP-10 and stir 30min, then add 1.5% azone to stir 30min, then add 1.5% trimethoxy silane to stir 30min, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with rapeseed oil, after filtration and get final product.
Embodiment 2: the test of pesticide effectiveness
Test agricultural chemicals: 70% propiconazole emulsifiable concentrate;
Test spray adjuvants: embodiment 1 spray adjuvants and the spray adjuvants for preparing according to embodiment 1 method, just do not add azone and trimethoxy silane;
Controlling object: Brazilian any of several broadleaf plants leaf spot;
Environmental condition: be experimental field red soil, physical features flat slope ground, preserve moisture and fertility is better, and rich water quality management is normal, and growing way is more consistent, and the banana plant height is 2.5 meters left and right, field leaf spot onset causes harm;
Test site: beautiful Ting Qiaotao village, Dengmai County, Hainan Province and Da Qiao town, Huazhou City, Guangdong Province.
Set up blank group, experimental group 1 (70% propiconazole emulsifiable concentrate adds embodiment 1 spray adjuvants), experimental group 2 (70% propiconazole emulsifiable concentrate adds commercially available certain spray adjuvants), 50 square metres of every group of areas, Brazilian any of several broadleaf plants 15 strains.The spraying of employing manual sprayer, dispenser accomplishes evenly to squirt leave dual sides.This test repeats 4 times, tests dispenser three times at every turn, and 7 days, each dispenser interval, do not have rainfall during dispenser, do not use other medicament simultaneously, and banana is in vegetative growth phase, and the agricultural chemicals formulation rate and the spray adjuvants total amount that apply are all consistent.
Investigation state of an illness radix before medicine, for the first time, for the second time, carried out efficacy survey in 7 days after medicine for the third time, every group of random searching 10 strains, the record total blade of investigation and killed blade, blade severity Scaling method is in Table 1.
Table 1 blade severity Scaling
| 0 grade | Without scab |
| 1 grade | Lesion area accounts for whole blade area below 5% |
| 3 grades | Lesion area accounts for whole blade area 6%～15% |
| 5 grades | Lesion area accounts for whole blade area 16%～25% |
| 7 grades | Lesion area accounts for whole blade area 26%～50% |
| 9 grades | Lesion area accounts for whole blade area more than 50% |
Blade disease index, preventive effect computing formula are as follows:
Blade disease index=∑ (the disease numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
Control efficiency (%)=(blank group disease index-experimental group disease index)/blank district disease index * 100, the results are shown in Table 2 and table 3, wherein table 2 is the results in the beautiful Ting Qiaotao village in Dengmai County, Hainan Province, and table 3 is the results in Da Qiao town, Huazhou City, Guangdong Province.
Table 2 drug effect result
Table 3 drug effect result
By table 2 and table 3, can learn, the average preventive effect of experimental group 1 (70% propiconazole emulsifiable concentrate adds embodiment 1 spray adjuvants) is significantly higher than experimental group 2 (70% propiconazole emulsifiable concentrate adds commercially available certain spray adjuvants).Control efficiency, higher than 10% left and right, shows that spray adjuvants of the present invention has very strong infiltration, interior suction, opening up, and can be good at acting on target, on blade, is opening up fast, makes blade absorb fast, has improved widely pesticide efficacy.
Embodiment 3: wet performance detects
The wetting power of spray adjuvants shows, when the surface tension of spray liquid surface tension lower than plant surface, spray liquid just adsorbs moistening at plant surface, otherwise spray liquid shrinks and rebounds at plant surface.By embodiment 1 spray adjuvants that adopts in embodiment 2 and according to embodiment 1 preparation method, do not add spray adjuvants (being called for short the contrast spray adjuvants) prepared by azone and trimethoxy silane and carry out the wet performance detection, the results are shown in Table 4.
Table 4 wet performance parameter result
| The material title | Surface tension mN/m |
| Water | 72.0 |
| Embodiment 1 spray adjuvants | 21.2 |
| The contrast spray adjuvants | 26.7 |
| Trimethoxy silane | 21.6 |
| Azone | 31.8 |
As can be seen from Table 4, use separately the contrast spray adjuvants, surface tension is spray adjuvants as described herein not, but after adding azone and trimethoxy silane, surface wettability has surpassed independent use trimethoxy silane and azone wetability.
Embodiment 4: prepare spray adjuvants of the present invention
Be calculated in mass percent, under 50 ℃ of constant temperature, in 78% esterification sunflower oil, add 15% non-ionic surface active agent NP-10 and stir 30min, then add 2.5% azone to stir 30min, then add 0.5% trimethoxy silane to stir 30min, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with sunflower oil, after filtration and get final product.
According to embodiment 2,3, carry out drug effect and wet performance detection, two places test of pesticide effectiveness results shows that the average preventive effect of spray adjuvants of the present embodiment is higher than the average preventive effect 8-12% of the spray adjuvants that does not add azone and trimethoxy silane, and the surface tension parameter is also lower than the surface tension of the spray adjuvants that does not add azone and trimethoxy silane.Show that spray adjuvants of the present invention has very strong infiltration, interior suction, opening up, can be good at acting on target, on blade, opening up fast, make blade absorb fast, improved widely pesticide efficacy.
Embodiment 5: prepare spray adjuvants of the present invention
Be calculated in mass percent, under 50 ℃ of constant temperature, in 77% esterification neem oil, add 15% non-ionic surface active agent NP-10 and stir 30min, then add 0.5% azone to stir 30min, then add 2.5% trimethoxy silane to stir 30min, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with sunflower oil, after filtration and get final product.
According to embodiment 2,3, carry out drug effect and wet performance detection, two places test of pesticide effectiveness results shows that the average preventive effect of spray adjuvants of the present embodiment is higher than the average preventive effect 8-12% of the spray adjuvants that does not add azone and trimethoxy silane, and the surface tension parameter is also lower than the surface tension of the spray adjuvants that does not add azone and trimethoxy silane.Show that spray adjuvants of the present invention has very strong infiltration, interior suction, opening up, can be good at acting on target, on blade, opening up fast, make blade absorb fast, improved widely pesticide efficacy.
Embodiment 6: prepare spray adjuvants of the present invention
Be calculated in mass percent, under 50 ℃ of constant temperature, in 82% esterification soybean oil, add 15% non-ionic surface active agent NP-10 and stir 30min, then add 1% azone to stir 30min, then add 1% trimethoxy silane to stir 30min, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with rapeseed oil, after filtration and get final product.
According to embodiment 2,3, carry out drug effect and wet performance detection, two places test of pesticide effectiveness results shows that the average preventive effect of spray adjuvants of the present embodiment is higher than the average preventive effect 8-12% of the spray adjuvants that does not add azone and trimethoxy silane, and the surface tension parameter is also lower than the surface tension of the spray adjuvants that does not add azone and trimethoxy silane.Show that spray adjuvants of the present invention has very strong infiltration, interior suction, opening up, can be good at acting on target, on blade, opening up fast, make blade absorb fast, improved widely pesticide efficacy.
Embodiment 7: prepare spray adjuvants of the present invention
Be calculated in mass percent, under 50 ℃ of constant temperature, in 80% esterification neem oil, add 15% non-ionic surface active agent NP-10 and stir 30min, then add 1% azone to stir 30min, then add 2% trimethoxy silane to stir 30min, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with neem oil, after filtration and get final product.
According to embodiment 2,3, carry out drug effect and wet performance detection, two places test of pesticide effectiveness results shows that the average preventive effect of spray adjuvants of the present embodiment is higher than the average preventive effect 8-12% of the spray adjuvants that does not add azone and trimethoxy silane, and the surface tension parameter is also lower than the surface tension of the spray adjuvants that does not add azone and trimethoxy silane.Show that spray adjuvants of the present invention has very strong infiltration, interior suction, opening up, can be good at acting on target, on blade, opening up fast, make blade absorb fast, improved widely pesticide efficacy.
The explanation of above embodiment is just be used to helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. spray adjuvants, it is characterized in that, be calculated in mass percent, comprise vegetable oil, 10-15% non-ionic surface active agent NP-10 and 0.1% Ultraviolet Absorber UV-P of 0.5-2.5% azone, 0.5-2.5% trimethoxy silane, 77-83% esterification, surplus is supplied with vegetable oil.
2. spray adjuvants according to claim 1, is characterized in that, the mass percent of described azone is 1.5%.
3. spray adjuvants according to claim 1, is characterized in that, the mass percent of described trimethoxy silane is 1.5%.
4. spray adjuvants according to claim 1, is characterized in that, the mass percent of the vegetable oil of described esterification is 80%.
5. spray adjuvants according to claim 1, is characterized in that, described vegetable oil is rapeseed oil, sunflower oil, soybean oil and neem oil.
6. spray adjuvants according to claim 1, is characterized in that, the mass percent of described non-ionic surface active agent NP-10 is 12%.
7. the preparation method of a spray adjuvants, it is characterized in that, be calculated in mass percent, under 50 ℃ of constant temperature, in the vegetable oil of 77-83% esterification, add 10-15% non-ionic surface active agent NP-10 to mix, then add the azone of 0.5-2.5% to mix, then add the trimethoxy silane of 0.5-2.5% to mix, finally add 0.1% Ultraviolet Absorber UV-P to be stirred to transparent, surplus is supplied with vegetable oil, after filtration and get final product.
8. preparation method according to claim 7, is characterized in that, the mass percent of described azone is 1.5%.
9. preparation method according to claim 7, is characterized in that, the mass percent of described trimethoxy silane is 1.5%.
10. preparation method according to claim 7, is characterized in that, described vegetable oil is rapeseed oil, sunflower oil, soybean oil and neem oil.
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| CN106259571A (en) * | 2016-08-18 | 2017-01-04 | 江苏绿洲园艺绿化有限公司 | A kind of preparation method of the medicament for preventing and treating loquat leaf spot |
| CN114271284A (en) * | 2016-09-14 | 2022-04-05 | 北京图为生物科技有限责任公司 | Synergistic spray auxiliary agent suitable for prevention and control of plant protection unmanned aerial vehicle, preparation method and application thereof, and spray |
| CN106689122B (en) * | 2016-12-12 | 2018-04-06 | 北京广源益农化学有限责任公司 | The spray adjuvantses and application that agricultural aviation plant protection spraying or ultra-low volume spray use |
| CN107410294A (en) * | 2017-06-08 | 2017-12-01 | 合肥龙滨化工科技有限公司 | A kind of biological pesticide used additives |
| CN107494530A (en) * | 2017-09-11 | 2017-12-22 | 河南省农业科学院植物保护研究所 | A kind of high-effective penetrating pesticide spray auxiliary agent |
| CN109644998B (en) * | 2018-12-26 | 2019-08-23 | 中化化工科学技术研究总院有限公司 | One kind flying anti-auxiliary agent and the preparation method and application thereof |
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