A kind of thickener composition and its preparation and application for MCPA,MCP,methoxone sodium
Technical field
The present invention relates to field of pesticide chemistry, and in particular to a kind of thickener composition and its preparation for MCPA,MCP,methoxone sodium
And application.
Background technology
Chemical herbicide advantages, remarkable benefit, are widely used in agricultural production.But, due to not
The drug resistance of herbicide is had differences with crop or same origin different cultivars (being), if unreasonable use can cause poisoning,
The problems such as environmental pollution.MCPA,MCP,methoxone sodium is phenoxy carboxylic acid parahormone type selective herbicide, with stronger Uptake and translocation
Property, can be used for the gramineous crops such as paddy and wheat, corn, Chinese sorghum, sugarcane and prevent and kill off annual and perennial broadleaf weed.
Pesticide dosage how is reduced, the effect after dispenser, problem always of concern is improved.By study find to
It is to reach the effective ways for being easy to apply, improve drug effect, reduce Pesticide use to add auxiliary agent in pesticidal preparations, and it also has in addition
Reduce use cost, extend medicament shelf life and market life, beneficial to the effect protected insect natural enemy, reduce environmental pollution
Really.And agricultural chemicals thickener is exactly the one kind in these auxiliary agents, it can play increase adhesion and deposition of the agricultural chemicals to target,
Reduce due to rain drop erosion, blowing causes plant leaf mutually to collide and the medicament that causes of rub is lost in, reduction agricultural chemicals is to environment
Pollution, reach control pollution sources effect, this is increasingly enhanced today significant for environmental consciousness.
MCPA,MCP,methoxone sodium is insoluble in water, is soluble in the organic solvents such as ethanol, ether, and its usable floor area at home and abroad is continuous
Expand, the auxiliary agent exploitation used by which typically only pays attention to sprawling for plant leaf surface, and the adhesiving effect of plant leaf surface is not drawn
Play enough attention.And use thickening type auxiliary agent improve adhesion of the liquid on target blade face, in the consumption for reducing herbicide,
Have very important significance in terms of improving herbicidal effect.Common thickener composition cannot increase when MCPA,MCP,methoxone sodium aqua is prepared
The viscosity of agent is added, and lamination easily occurs, so as to affect its herbicidal effect.
The content of the invention
For the deficiency that above-mentioned prior art is present, the invention provides a kind of stable and being used for certain viscosity
The thickener composition of MCPA,MCP,methoxone sodium, and disclose its methods for making and using same.Said composition is dedicated for MCPA,MCP,methoxone sodium water
Agent, substitutes the conventional auxiliary agent without thickening effect with this composition, can improve adhesion of the liquid on blade face and reduce rain drop erosion, blows
Cause plant leaf mutually to collide and rub the medicament that causes to be lost in, improve using effect.
To solve above-mentioned the deficiencies in the prior art, technical scheme is as follows:A kind of increasing for MCPA,MCP,methoxone sodium
Thick composition, it is characterised in that said composition includes accounting for composition total weight 2%-6% tetrasodium ethylenediamine tetraacetate, and accounts for group
Surfactant shown at least one or more of (A)-(C) of compound gross weight 15%-70%, balance of water:
(A) first kind surfactant:
Wherein R1For C12-C22 linear or branched saturation or aliphatic unsaturated hydrocarbon, R2Satisfy for C10-C18 is linear or branched
And/or aliphatic unsaturated hydrocarbon, a=1-4 and b=1-4;
(B) Equations of The Second Kind surfactant:
Wherein R3For C16-C22 linear or branched saturation or aliphatic unsaturated hydrocarbon;A is the linear or branched saturations of C1-C3
Or aliphatic unsaturated hydrocarbon, and B is CH3, O (oxygen) or CH2-COO;X is anion, and which includes but is not limited to chlorion, bromide ion;N exists
B is oxygen or CH2It is 0 during-COO, or is CH in B3When be 1;R4 and R5 independently are CH3Or CH2CH2OH;
(C) the 3rd class surfactant:
Wherein R6For C16-C22 linear or branched saturation or aliphatic unsaturated hydrocarbon;R7 and R8 independently are CH3Or
CH2CH2OH, c=1-4, and X are anion, such as chlorion, bromide ion or methylsulfate.
The composition also includes the salt that the cation for accounting for composition total weight 1%-5% is 1 valency or divalent, other parts
For water.
It is sodium chloride, ammonium chloride or ammonium sulfate that described cation is the salt of 1 valency or divalent.
The preparation method of thickener composition of the present invention, the tetrasodium ethylenediamine tetraacetate of formula ratio is added water stirring,
50 degree are warming up to, the cation for adding formula ratio is the salt of 1 valency or divalent, is stirred after solid is completely dissolved within 30 minutes for stirring
Mix 30 minutes, obtain thickener blend composition.
Thickener composition of the present invention MCPA,MCP,methoxone sodium preparaton and in application, with effectively by the diformazan four
Chlorine sodium preparaton is thickened in the amount addition preparaton of desirable degree.
Application of the thickener composition in MCPA,MCP,methoxone sodium preparaton, in most of the cases, thickener composition has
Effect amount with the mass percent scope in whole preparaton as 5-20%, preferred 8-15%, or more preferably 10-12%.
Thickener composition of the present invention is applied to the MCPA,MCP,methoxone sodium preparaton that mass percent is 5%-20%.
Thickener composition of the present invention, can substantially increase the viscosity of MCPA,MCP,methoxone preparation of sodium, according to present invention increasing
Thick MCPA,MCP,methoxone sodium preparaton generally has carrying for 50cps viscosity after at least one derivative of the present invention is added
Height, the in another embodiment raising of 100cps viscosity, the in another embodiment raising of 150cps viscosity and again
The raising of 200cps or bigger viscosity in one embodiment.
Specific embodiment
Following embodiments are used for further illustrating the present invention, but are not intended to be used to limit the present invention.Unless otherwise stated, in reality
In applying example, all parts and percentages are in mass.
Embodiment 1:
The configuration of thickener composition:
16.4 grams of tetrasodium ethylenediamine tetraacetate, 1,120 grams of surfactant A, then suction are put into in 1 kilogram of reactor
663.6 grams of water, open stirring, are warming up to 50 degree, and stirring adds 20g sodium chloride for 30 minutes after solid is completely dissolved, and stir
30 minutes, obtain thickener blend composition;
The structure of surfactant A 1:
。
Embodiment 2:
The configuration of thickener composition:
58.2 grams of tetrasodium ethylenediamine tetraacetate, 2,150 grams of surfactant A, surface-active are put into in 1 kilogram of reactor
Agent B1,100 grams, then 641.8 grams of water of suction, stirring to be opened, 50 degree are warming up to, stirring adds after solid is completely dissolved for 30 minutes again
Enter 20g ammonium chlorides, stir 30 minutes, obtain thickener blend composition;
The structure of surfactant A 2
The structure of surfactant B 1
。
Embodiment 3:
The configuration of thickener composition:
10.7 grams of tetrasodium ethylenediamine tetraacetate, 3,50 grams of surfactant A, surface-active are put into in 1 kilogram of reactor
Agent B2,100 grams, surfactant C1,100 grams, then 92.8 grams of water of suction, stirring to be opened, 50 degree are warming up to, stirring is treated for 30 minutes
Solid adds 3.5g sodium chloride after being completely dissolved, stir 30 minutes, obtain thickener blend composition;
The structure of surfactant A 3:
The structure of surfactant B 2:
The structure of surfactant C1:
。
Embodiment 4:
5% MCPA,MCP,methoxone sodium preparaton
Title content
MCPA,MCP,methoxone sodium(Active ingredient) 5%
Thickener(Embodiment 1) 5~10%
Water supplies 100%
Preparation performance
Emulsibility is excellent
Dispersiveness is excellent
Emulsion stability(GB standards)It is qualified
Cold storage stability(- 4 DEG C, 14 days)It is qualified
Heat storage stability(54 DEG C, 14 days)Without layering
Viscosity(25 DEG C, rotary viscosity) 50~80cp.s
Weeding ratio(MCPA,MCP,methoxone sodium effective ingredient consumption, 1050g/ha):15 days after medicine, 94.6%;30 days after medicine,
95.9%;
Contrast experiment:Weeding ratio(10% MCPA,MCP,methoxone sodium aqua of non-thickening type):15 days after medicine, 90.1%;30 days after medicine,
91.5%。
Embodiment 5:
10% MCPA,MCP,methoxone sodium preparaton
Title content
MCPA,MCP,methoxone sodium(Active ingredient) 10%
Thickener(Embodiment 2) 8~12%
Water supplies 100%
Preparation performance
Emulsibility is excellent
Dispersiveness is excellent
Emulsion stability(GB standards)It is qualified
Cold storage stability(- 4 DEG C, 14 days)It is qualified
Heat storage stability(54 DEG C, 14 days)Without layering
Viscosity(25 DEG C, rotary viscosity) 100-150cp.s
Weeding ratio(MCPA,MCP,methoxone sodium effective ingredient consumption, 1050g/ha):15 days after medicine, 95.0%;30 days after medicine,
95.8%;
Contrast experiment:Weeding ratio(10% MCPA,MCP,methoxone sodium aqua of non-thickening type):15 days after medicine, 90.1%;30 days after medicine,
91.5%。
Embodiment 6:
20% MCPA,MCP,methoxone sodium preparaton
Title content
MCPA,MCP,methoxone sodium(Active ingredient) 20%
Thickener(Embodiment 3) 10~15%
Water supplies 100%
Preparation performance
Emulsibility is excellent
Dispersiveness is excellent
Emulsion stability(GB standards)It is qualified
Cold storage stability(- 4 DEG C, 14 days)It is qualified
Heat storage stability(54 DEG C, 14 days)Without layering
Viscosity(25 DEG C, rotary viscosity) 150-180cp.s
Weeding ratio(MCPA,MCP,methoxone sodium effective ingredient consumption, 1050g/ha):15 days after medicine, 95.0%;30 days after medicine,
96.2%;
Contrast experiment:Weeding ratio(10% MCPA,MCP,methoxone sodium aqua of non-thickening type):15 days after medicine, 90.1%;30 days after medicine,
91.5%。
Embodiment 7:
20% MCPA,MCP,methoxone sodium preparaton
Title content
MCPA,MCP,methoxone sodium(Active ingredient) 20%
Thickener(Embodiment 3) 15~20%
Water supplies 100%
Preparation performance
Emulsibility is excellent
Dispersiveness is excellent
Emulsion stability(GB standards)It is qualified
Cold storage stability(- 4 DEG C, 14 days)It is qualified
Heat storage stability(54 DEG C, 14 days)Without layering
Viscosity(25 DEG C, rotary viscosity) 180-200cp.s
Weeding ratio(MCPA,MCP,methoxone sodium effective ingredient consumption, 1050g/ha):15 days after medicine, 95.2%;30 days after medicine,
96.2%
Contrast experiment:Weeding ratio(10% MCPA,MCP,methoxone sodium aqua of non-thickening type):15 days after medicine, 90.1%;30 days after medicine,
91.5%。