Carbendazim and the composite agricultural chemicals suspension agent of own azoles alcohol
Technical field
The present invention relates to a kind of carbendazim and the composite agricultural chemicals suspension agent of own azoles alcohol.
Background technology
Carbendazim, english common name carbendazim, chemical name: N-(2-benzimidazole base)-methyl carbamate.Have another name called carbendazol, carbendazol.Carbendazim is a kind of broad-spectrum germicide, has control efficiency to the disease that various crop is caused by fungi (as imperfect fungus, many sac fungis).Can be used for foliar spray, seed treatment and soil treatment etc.
Own azoles alcohol, English name: hexaconazole, CAS:79983-71-4.Belong to triazole bactericidal agent, sterol demethylation inhibitors, the disease caused fungi especially Basidiomycota and Ascomycota has protection and the therapeutic action of broad spectrum activity.The biosynthesis of the cell membrane important composition composition ergosterol of destruction and prevention germ, causes cell membrane not formed, and makes germ dead.There is interior suction, protection and therapeutic activity.
Agricultural chemicals suspension agent is the formulation of 20 century 70 development, has now become one of basic processing formulation.Suspending agent, also known as aqueous suspension agent, colloidal suspending agent, concentrated suspension, has cost low, the features such as production, storing and use safety, and easily mixes with water, easy to use.
Summary of the invention
For solving the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of carbendazim and the composite agricultural chemicals suspension agent of own azoles alcohol.Be achieved especially by following technical proposals:
Carbendazim and the composite agricultural chemicals suspension agent of own azoles alcohol, comprise the raw material of following weight percentage: carbendazim 25-35%; Own azoles alcohol 5-15%.
Carbendazim and the composite agricultural chemicals suspension agent of own azoles alcohol, be made up of following materials by weight percentage: carbendazim 25-35%; Own azoles alcohol 5-15%; Surfactant 8-12%; Ethylene glycol 5-7%; Sodium Polyacrylate 0.05-0.15%; Diethyl silicone oil 0.1-0.3%; Propylben 0.01-0.03%; Surplus is water.
Described surfactant is poly-(Oxy-1, the 2-ethylidene) non-ionic surface active agent of succinate sodium 2-ethylhexyl and/or α-[three (phenyl methyl) phenyl]-ω-hydroxyl.
Described surfactant, is made up of 40-60 weight portion succinate sodium 2-ethylhexyl and poly-(Oxy-1, the 2-ethylidene) non-ionic surface active agent of 40-60 weight portion α-[three (phenyl methyl) phenyl]-ω-hydroxyl.
α-[three (phenyl methyl) phenyl]-ω-hydroxyl gathers (Oxy-1,2-ethylidene) non-ionic surface active agent, CAS:64422-66-8, molecular formula: (C
2h
4o)
nc
27h
24o.Succinate sodium 2-ethylhexyl, also known as: Aerosol OT, No. CAS: 577-11-7.
PH adjusting agent can also be added according to actual needs in formula.
Carbendazim of the present invention and the composite agricultural chemicals suspension agent of own azoles alcohol can adopt the general method in this area to be prepared, and one is ultramicro grinding method, and another kind is coacervation.
Concrete, described ultramicro grinding method:
(1) according to formula, carbendazim, own azoles alcohol, surfactant, ethylene glycol, Sodium Polyacrylate, diethyl silicone oil, propylben and water are uniformly mixed pulp thing, are placed in ball mill and pulverize.
(2) be placed in skin grinder and carry out ultramicro grinding, control average grain diameter 2-4 μm.
(3) be placed in homogenizer homogeneous, make particle homogenization.
Carbendazim of the present invention and the composite agricultural chemicals suspension agent of own azoles alcohol have higher suspension rate, stable during long-term storage.To Ascomycetes, to carry on a shoulder pole lonely Gammaproteobacteria and deuteromycetes effective, has good control efficiency to spot defoliation and powdery mildew.Permeability and interior suction dredge that ability is comparatively strong, and medicament can move and redistribute after infiltrating crop leaf in blade, have well protection and therapeutic action to the tip district of non-dispenser and root.
Embodiment
Embodiment 1
(1) according to formula, carbendazim, own azoles alcohol, surfactant, ethylene glycol, Sodium Polyacrylate, diethyl silicone oil, propylben and water are uniformly mixed pulp thing, are placed in ball mill and pulverize.
(2) be placed in skin grinder and carry out ultramicro grinding, control average grain diameter 2-4 μm.
(3) be placed in homogenizer homogeneous, make particle homogenization.
Obtained suspending agent, the liquid of outward appearance thickness homogeneous phase, measure through Malvern laser fineness gage, its average grain diameter (D50) is 3.2 μm.
Table 1: carbendazim and the composite agricultural chemicals suspension agent formula table unit of own azoles alcohol: kilogram
|
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Carbendazim |
30 |
30 |
30 |
Own azoles alcohol |
10 |
10 |
10 |
Succinate sodium 2-ethylhexyl |
5 |
10 |
/ |
α-[three (phenyl methyl) phenyl]-ω-hydroxyl gathers (oxygen |
5 |
/ |
10 |
Base-1,2-ethylidene) non-ionic surface active agent |
|
|
|
Ethylene glycol |
6 |
6 |
6 |
Sodium Polyacrylate |
0.1 |
0.1 |
0.1 |
Diethyl silicone oil |
0.2 |
0.2 |
0.2 |
Propylben |
0.02 |
0.02 |
0.02 |
Water |
43.68 |
43.68 |
43.68 |
Embodiment 2
Take raw material by table 1 corresponding embodiment 2 data, be prepared by the method for embodiment 1.Obtained suspending agent, average grain diameter (D50) is 3.2 μm.
Embodiment 3
Take raw material by table 1 corresponding embodiment 3 data, be prepared by the method for embodiment 1.Obtained suspending agent, average grain diameter (D50) is 3.2 μm.
High temperature storage 14 days under room temperature storage 14 days, 54 DEG C ± 2 DEG C conditions respectively, adopt " GB/T14825-2006 agricultural-chemical suspension rate assay method " to survey suspensibility, concrete data see the following form 2.As suspensibility >85%, then think that this product is certified products.
Table 2: agricultural-chemical suspension rate determination data list position: %
|
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Room temperature storage is after 14 days |
95.7 |
94.6 |
94.2 |
High temperature storage is after 14 days |
94.9 |
93.5 |
93.1 |
Suspension refers to that former powder of dispersion keeps the ability of suspension time length in suspension, usually represents with suspensibility.A good suspending agent, should have good storage stability, namely higher suspensibility.
Carbendazim of the present invention and the composite agricultural chemicals suspension agent of own azoles alcohol, suspensibility is high, plate-out ability and good penetrability, and properties of product are stablized.
α-[three (phenyl methyl) phenyl]-ω-hydroxyl gathers (Oxy-1,2-ethylidene) non-ionic surface active agent is mainly used in suppressing the corrosion in linear cutter and galvano-cautery, sludge in softening working groove, is used as rust-inhibiting additive in low-speed WEDM production process.In prior art, do not have and this raw material is used for any technology enlightenment that agricultural chemicals reagent plays dispersion moistening effect.In the present invention, poly-(the Oxy-1 of α-[three (phenyl methyl) phenyl]-ω-hydroxyl being originally used for rust-inhibiting additive in a creative way, 2-ethylidene) non-ionic surface active agent is diverted in insecticidal suspending agent, plays dispersion moistening effect.Especially, succinate sodium 2-ethylhexyl and α-[three (phenyl methyl) phenyl]-ω-hydroxyl are gathered (Oxy-1,2-ethylidene) non-ionic surface active agent composite, Synergistic, effectively improves suspensibility.