CN102907422A - Water-borne thickener composition and preparation method as well as application thereof - Google Patents
Water-borne thickener composition and preparation method as well as application thereof Download PDFInfo
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- CN102907422A CN102907422A CN2012103918001A CN201210391800A CN102907422A CN 102907422 A CN102907422 A CN 102907422A CN 2012103918001 A CN2012103918001 A CN 2012103918001A CN 201210391800 A CN201210391800 A CN 201210391800A CN 102907422 A CN102907422 A CN 102907422A
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- paraquat
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Abstract
The invention discloses a water-borne thickener composition, which consists of the following components in percentage by mass: 10-15 percent of amino acid based amphiphilic surfactant (A), 30-50 percent of quaternary ammonium salt surfactant (B), 5-10 percent of cosurfactant (C) and the balance of water. The water-borne thickener composition has good performance such as thickening, emulsification, wetting and dispersion in aqueous solution. The thickener is used for thickening of a paraquat preparation, has good emulsification and dispersion performance, takes the shape of viscous liquid crystal (25 DEG C) and is difficult to demix, the leaf surface has better adhesion and ductility during use, the using amount of paraquat is favorably reduced, and the use effect is improved.
Description
Technical field
The present invention relates to a kind of water-based thickener composition and the application in paraquat preparation thereof.
Background technology
Paraquat is a kind of tagging property weed killer herbicide that imposes on blade of grass.Paraquat is onset in the sun, can allow any green plant of with it contact partly wither.Paraquat onset by the photosynthesis that hinders plant.Can infiltrate at once the blade face after the paraquat dispenser.In high light and high humidity environment, this infiltration rate also can improve.1955, ICI found the herbicide effect of paraquat.As a kind of weeding articles for use, paraquat has obtained rapidly approval, and is used in ground, the ridge crop of tree crop and at that time appearance.People recognized the methods of cultivation that paraquat can replace wastes time and energy afterwards, so in the 's and 1970, the whole world has been carried out large quantity research with unprecedented scale to this agricultural chemicals of paraquat, has also caused the innovation of soil treatment before the plantation simultaneously.
Paraquat is upset the photosynthesis of chloroplast
Paraquat is onset in the sun, can allow any green plant of with it contact partly wither.Can infiltrate at once the blade face after the paraquat dispenser.In high light and high humidity environment, this infiltration rate also can be accelerated.In prescription, add the nonionic adjuvant that to guarantee good medicine confining force and target blade of grass humidity, also can reach effect same.
The site of action of paraquat is chloroplast.Chloroplast contains the photosynthetical system of green plants, can absorb luminous energy and make sugar.Paraquat acts on the photosynthetic membrane system that is called as photosynthetical system I, and this system can produce free electron to promote photosynthesis.
Free electron and paraquat ion that photosynthetical system I produces react, and produce radical structure.Oxygen is rapidly with these radical reductions, and produces in this course peroxide.Peroxide has high chemism, and it can attack the unsaturated fat sorrel, opens rapidly and decomposes cell membrane and tissue.Then paraquat ion/free radical reaction course can produce more peroxide repeatedly, until stop to produce free electron.
Under warm bright condition, only needed several hours can see that just the dispenser plant is obviously withered, but under dark cold condition, this may need several days time.Then the tissue of plant can become rapidly dried-up or sallow.Therefore, as long as sunlight, oxygen and chlorophyll are arranged, paraquat just can be with distinctive mode quick acting.
Membranolysis causes the plant dehydration, then causes blade withered rapidly.Owing to the speed that cell is destroyed is too fast, so overview is shifted less than the cell in the blade.Therefore, must cover blade of grass and growing point fully to the control of annual weed.Perennial weed can regrow, and therefore needs further to process.
Nearly 50 years of paraquat (paraquat) extensive use in agricultural worldwide surpasses 100 countries as the nonselective herbicide application, is subject to accepting extensively and welcomes.At home, first just reach (Sygenta) company and invested 8,500 ten thousand dollars in 1998 in the Nantong, design year is produced the factory of 600 tons of former medicines of paraquat, spent more money in 2006 to 11,500 ten thousand dollars, build the new former medicine factory of a world-class technique center and, produced more than 21000 tons of " paraquat " products, and occupied at home more than 50 % of paraquat market in 2006.Estimate that from now on, paraquat will further enlarge in use scale and the scope of China, particularly at no-tillage cultivation, minimal till and will progressively develop aspect cultivation and the protectiveness medication, and bring into play larger effect.The increase of former drug prods also can make the increase in demand of corresponding auxiliary agent, and therefore, the paraquat auxiliary agent of developing more economical more environmental protection is of great immediate significance.
But paraquat has very strong toxic action to people, animal.Great majority are because oral the poisoning of wrongly taking or commit suiside, and absorbing poisons causes death but also can and breathe through skin.The oral rear absorption of paraquat is fast, mainly is accumulated in lung and the muscle, drain slowly, so the sustainable existence of toxic action.Pathology mainly betides lung, be called paraquat lung, early stage poisoning symptom and the sign of the paraquat of swallowing: oral cavity, throat, chest, burning property of upper abdomen pain, this is because paraquat is caused to the corrosiveness of mucous layer, severe one can cause mediastinal emphesema, pneumothorax, also can cause gastric perforation.Symptoms has dizziness, headache, fever, myalgia, diarrhoea (also bloody diarrhea can occur), also can cause pancreatitis can cause that serious abdomen is painful.Blood urine, albuminuria, pyuria, azotemia urine appear after the kidney damaged.The renal tubular cell acute necrosis oliguresis can occur and lack urine.At present, paraquat poisoning is still without special efficacy antidote, and existing treatment means mainly is by removing the symptomatic treatments such as free radical, Immunosuppression.1) Green Tea Extract medicine: the antioxidation hexyl of vitamin C, vitamin E, glutathione originally gains public acceptance.2) hormone of hormone and immunodepressant routine dose rescue paraquat poisoning can not get an expected result, and early massive dose uses hormone and drug combination treatment can reduce the paraquat poisoning case fatality rate.
On October 19th, 2011, the chief Gu Baogen of the Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC has emphasized to strengthen safety management to paraquat in " conference of the 11 national agricultural chemicals exchanging meeting theme ".He points out in meeting: " for this serious social problems of paraquat poisoning; we investigate the paraquat poisoning accident; and study the paraquat aqua is substituting; hold simultaneously repeatedly registration management seminar; solicit each side's suggestion; analyze the feasibility of various control measures, and will issue in the near future bulletin." the Gu chief explains, although the paraquat poisoning event is the initiative behavior a bit, in order to meet society to the requirement of agricultural chemicals, must actively develop the exploitation of the safe formulation of paraquat, strives for the registration at cancellation paraquat aqua in 2013.Because the high lethality rate of paraquat causes it in the registration of aqua and uses to be restricted in the future.Paraquat temporarily can not forbidden, and the formulation of paraquat will to the future development of semisolid, semifluid, paste, liquid crystal shape, therefore be developed liquid crystal shape paraquat auxiliary agent significant.
Summary of the invention
Technical scheme of the present invention is as follows:
A kind of water-based thickener composition: it is comprised of by following mass percent following component:
Amino acid based amphiphilic surfactant (A) 10-15%;
Quaternary surfactant (B) 30-50%;
Cosurfactant (C) 5-10%;
Water complements to 100%;
The structural formula of described amino acid based amphiphilic surfactant (A) is:
Wherein: a+b=15-40, m=8-18, n=10-18;
The structural formula of described quaternary surfactant (B) is:
Wherein: c=9-16, d=3-10;
The structural formula of described cosurfactant (C) is:
Wherein: e=2-7.
A kind of method for preparing above-mentioned water-based thickener composition, it is by above-mentioned component and mass ratio, in reactor, drop into amino acid based amphiphilic surfactant A, add entry, stir, be warming up to 50 ℃, stir and after solid dissolves fully, added again quaternary surfactant B in 30 minutes, stirred 30 minutes, add at last cosurfactant C, stirred 30 minutes, and namely obtained the water-based thickener composition of the present invention of yellow viscous liquid shape.
The application of above-mentioned water-based thickener in preparation 20% paraquat SL.
Water-based thickener composition of the present invention has the performances such as good thickening, emulsification, wetting, dispersion in the aqueous solution.This thickener is used for the thickening of paraquat preparation, and emulsion dispersion property is good, and the preparation outward appearance is sticky shape liquid crystal (25 ℃), is difficult for layering, have preferably on the blade face in the use procedure adhere to, ductility, be conducive to reduce the consumption of paraquat, improve result of use.
Embodiment
Following embodiment is used for further specifying the present invention, but is not intended to limit the present invention.Except as otherwise noted, all umbers and percentage is all in mass in an embodiment.
Embodiment 1:
Compound water-based thickener blend composition composite:
In 1 kilogram of reactor, drop into amino acid based amphiphilic surfactant A, 100 grams, suction 550 gram water are opened and are stirred again, are warming up to 50 ℃, stir and after solid dissolves fully, added again 300 gram quaternary surfactant B in 30 minutes, stirred suction cosurfactant C, 50 grams 30 minutes, stirred 30 minutes, the yellow viscous liquid that obtains is compound water-based agricultural chemicals thickener.
Embodiment 2:
Compound water-based thickener blend composition composite:
In 1 kilogram of reactor, drop into amino acid based amphiphilic surfactant A, 100 grams, again suction, 440 gram water, open and stir, be warming up to 50 ℃, stir and after solid dissolves fully, added again 400 gram quaternary surfactant B in 30 minutes, stirred 30 minutes, suction cosurfactant C, 60 grams stirred 30 minutes, and the yellow viscous liquid that obtains is compound water-based agricultural chemicals thickener.
Embodiment 3:
Compound water-based thickener blend composition composite:
In 1 kilogram of reactor, drop into amino acid based amphiphilic surfactant A, 150 grams, suction 250 gram water are opened and are stirred again, are warming up to 50 ℃, stir and after solid dissolves fully, added again 500 gram quaternary surfactant B in 30 minutes, stirred suction cosurfactant C, 100 grams 30 minutes, stirred 30 minutes, the yellow viscous liquid that obtains is compound water-based agricultural chemicals thickener.
Embodiment 4:
The preparation of 20% paraquat SL
| Title | Content |
| Paraquat (active ingredient) | 20% |
| Thickener (embodiment 1 preparation) | 40% |
| Sodium chloride | 1% |
| Water | Supply 100% |
The preparation performance
| Emulsibility | Excellent |
| Dispersed | Excellent |
| Emulsion stability (GB standard) | Qualified |
| Cold storage stability (4 ℃, 14 days) | Qualified |
| Heat storage stability (54 ℃, 14 days) | Qualified |
| Viscosity (40 ℃, rotary viscosity) | ?2000-2100cp.s |
Embodiment 5:
The preparation of 20% paraquat SL
| Title | Content |
| Paraquat (active ingredient) | 20% |
| Thickener (embodiment 2 preparations) | 40% |
| Sodium bromide | 1% |
| Water | Supply 100% |
The preparation performance
| Emulsibility | Excellent |
| Dispersed | Excellent |
| Emulsion stability (GB standard) | Qualified |
| Cold storage stability (4 ℃, 14 days) | Qualified |
| Heat storage stability (54 ℃, 14 days) | Qualified |
| Viscosity (40 ℃, rotary viscosity) | ?2300-2500cp.s |
Embodiment 6:
The preparation of 20% paraquat SL
| Title | Content |
| Paraquat (active ingredient) | 20% |
| Thickener (embodiment 3 preparations) | 40% |
| Sodium chloride | 1% |
| Water | Supply 100% |
The preparation performance
| Emulsibility | Excellent |
| Dispersed | Excellent |
| Emulsion stability (GB standard) | Qualified |
| Cold storage stability (4 ℃, 14 days) | Qualified |
| Heat storage stability (54 ℃, 14 days) | Qualified |
| Viscosity (40 ℃, rotary viscosity) | ?3000-3200cp.s |
Claims (3)
1. water-based thickener composition: it is characterized in that it is comprised of by following mass percent following component:
Amino acid based amphiphilic surfactant (A) 10-15%;
Quaternary surfactant (B) 30-50%;
Cosurfactant (C) 5-10%;
Water complements to 100%;
The structural formula of described amino acid based amphiphilic surfactant (A) is:
Wherein: a+b=15-40, m=8-18, n=10-18;
The structural formula of described quaternary surfactant (B) is:
Wherein: c=9-16, d=3-10;
The structural formula of described cosurfactant (C) is:
Wherein: e=2-7.
2. method for preparing water-based thickener composition claimed in claim 1, it is characterized in that: it is by component claimed in claim 1 and mass ratio, in reactor, drop into amino acid based amphiphilic surfactant A, add entry, stir, be warming up to 50 ℃, stir and after solid dissolves fully, added again quaternary surfactant B in 30 minutes, stirred 30 minutes, add at last cosurfactant C, stirred 30 minutes, and obtained the water-based thickener composition of yellow viscous liquid shape.
3. the application of water-based thickener claimed in claim 1 in preparation 20% paraquat SL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103918001A CN102907422A (en) | 2012-10-16 | 2012-10-16 | Water-borne thickener composition and preparation method as well as application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103918001A CN102907422A (en) | 2012-10-16 | 2012-10-16 | Water-borne thickener composition and preparation method as well as application thereof |
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| CN102907422A true CN102907422A (en) | 2013-02-06 |
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| CN2012103918001A Pending CN102907422A (en) | 2012-10-16 | 2012-10-16 | Water-borne thickener composition and preparation method as well as application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103875658A (en) * | 2014-03-18 | 2014-06-25 | 长兴德源环保助剂有限公司 | Paraquat thickening agent and preparation method thereof |
| WO2017137364A1 (en) | 2016-02-10 | 2017-08-17 | Akzo Nobel Chemicals International B.V. | Thickened paraquat and fertilizer compositions |
| WO2019243112A1 (en) * | 2018-06-22 | 2019-12-26 | Basf Se | Amino acid based surfactants as formulants for biocides |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270499A (en) * | 1997-07-22 | 2000-10-18 | 孟山都公司 | High-loaded ammonium glyphosate formulations |
| CN1361661A (en) * | 1999-07-16 | 2002-07-31 | 帝国化学工业公司 | Agrochemical compositions and surfactant compounds |
| CN1376033A (en) * | 1999-09-09 | 2002-10-23 | 孟山都技术有限责任公司 | Enhanced method of killing weeds with glyphosate herbicide |
| US20110034332A1 (en) * | 2004-03-10 | 2011-02-10 | Monsanto Technology Llc | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
| EP2505061A1 (en) * | 2011-03-30 | 2012-10-03 | Rhodia Opérations | New uses of choline chloride in agrochemical formulations |
| WO2012154732A1 (en) * | 2011-05-09 | 2012-11-15 | Momentive Performance Materials Inc. | Adjuvant composition and agrochemical formulation containing same |
-
2012
- 2012-10-16 CN CN2012103918001A patent/CN102907422A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270499A (en) * | 1997-07-22 | 2000-10-18 | 孟山都公司 | High-loaded ammonium glyphosate formulations |
| CN1361661A (en) * | 1999-07-16 | 2002-07-31 | 帝国化学工业公司 | Agrochemical compositions and surfactant compounds |
| CN1376033A (en) * | 1999-09-09 | 2002-10-23 | 孟山都技术有限责任公司 | Enhanced method of killing weeds with glyphosate herbicide |
| US20110034332A1 (en) * | 2004-03-10 | 2011-02-10 | Monsanto Technology Llc | Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide |
| EP2505061A1 (en) * | 2011-03-30 | 2012-10-03 | Rhodia Opérations | New uses of choline chloride in agrochemical formulations |
| WO2012154732A1 (en) * | 2011-05-09 | 2012-11-15 | Momentive Performance Materials Inc. | Adjuvant composition and agrochemical formulation containing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103875658A (en) * | 2014-03-18 | 2014-06-25 | 长兴德源环保助剂有限公司 | Paraquat thickening agent and preparation method thereof |
| WO2017137364A1 (en) | 2016-02-10 | 2017-08-17 | Akzo Nobel Chemicals International B.V. | Thickened paraquat and fertilizer compositions |
| WO2019243112A1 (en) * | 2018-06-22 | 2019-12-26 | Basf Se | Amino acid based surfactants as formulants for biocides |
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Application publication date: 20130206 |