CN101683070A - Water-based type insect aerosol research and development - Google Patents
Water-based type insect aerosol research and development Download PDFInfo
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- CN101683070A CN101683070A CN200810200470A CN200810200470A CN101683070A CN 101683070 A CN101683070 A CN 101683070A CN 200810200470 A CN200810200470 A CN 200810200470A CN 200810200470 A CN200810200470 A CN 200810200470A CN 101683070 A CN101683070 A CN 101683070A
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Abstract
The invention provides a water-based type insect aerosol research and development, belonging to the technical field of resource and environment. The insect aerosol plays a dominant role in the Chineseaerosol industry. Now many new brand insecticidal agents are constantly emerging and a large number of high quality and low irritating effect insect aerosols are being put on the market, wherein thewater-based type insect aerosol especially has the attention of people. With the request of environmental protection, the research for developing low VOC value aerosol product is imperative and the water-based type insect aerosol just meets the trend.
Description
Technical field
The present invention relates to the development and the exploitation of water-based type insect aerosol, use novel surfactant, reach oil-in-water well emulsify effect, obtain stable aqua type insecticide, in use environment there is good effect, belongs to the resource and environment technical field with low VOC value discharging.
Background technology
Insect aerosol occupies leading status in China's aerosol industry.Many new brand insecticides continue to bring out at present, and the insect aerosol of large quantities of high-quality, low irritant is just put on market, and wherein water-base pesticide aerosols is noticeable especially.Along with environmental protection cry day is high, the research of the low VOC value aerosol products of exploitation is imperative, and water-base pesticide aerosols is just catering to this trend.
The solvent that insect aerosol uses mainly contains three kinds: kerosene, alcohol and water, the insecticide more than 80% all is to be the oil base aerosol of solvent with kerosene on the China market at present.But the oil base aerosol exists such as volatile organic matter problem (WOCs), problem of environmental pollution, toxicity problem, dispenser cost issues etc.; With alcohol is solvent, also has the volatile organic matter problem, and the ground ozone concentration is destroyed, and causes photochemical pollution.U.S. EPA has the emission measure statute of limitation to WOCs, and also there is control in Europe.According to chairman Meng Tefu Mr. Johnson of U.S. aerosol association introduction, WOCs should not allow ethanol to make solvent (U.S. is mainly water base) less than 20%; The organic solvent that moisture water base aerosol distributes lacks than the oil base aerosol, and gaining all advantage aspect environmental pollution and the dispenser expense, thereby water base aerosol is progressively replacing the oil base aerosol that contains organic solvent in the U.S., Japan and other countries, but, but has only a spot of water base aerosol in China.But, development along with society, growth in the living standard, the continuous enhancing of people's environmental consciousness, even in China, the market of aerosol expensive goods also can enlarge day by day, as the excellent Ke Fu of the Russell Marketing Consultant Rechards of company, Herlieh says: " third world countries will develop more senior product and becoming and be similar to American-European mode, and will be more high-grade because they will become, and also will increase the demand of insecticide." in view of this, water-base pesticide aerosols may become China's main product in aerosol market in the future.
But the effect composition that has in the insect aerosol all is water-insoluble basically, is that the active ingredient in the prescription is carried out emulsification or solubilising so produce first key of water base aerosol products, and active ingredient is distributed in the water uniformly.And emulsification makes the very big interface of formation between water and oil, causes the system free energy to increase, and is unsettled on thermodynamics, so the problem that water-base pesticide aerosols at first will solve is to improve the stability of emulsion.Shanghai Lianhe aerosol products filling Co., Ltd satisfies the widespread demand in market at the variety of problems and the defective of former product, develops this water-based type insect aerosol energetically.
Summary of the invention
In conjunction with China's national situation, the water-based type insect aerosol of research, development of new replaces traditional kerosene formulation and alcohol formulation insecticide, and reducing environmental pollution is one of purpose of the present invention.We studies have shown that: select the low viscosity water-in-oil emulsifier, solved the lability on thermodynamics in the past, this lability comprises two aspects: the 1. stability of feed liquid before the can; 2. the stability of content in after the can jar.
Available following method improves the stability of canned preceding feed liquid: select emulsifier 1..General first lipophilic group and all bigger emulsifier of hydrophilic group.For the W/O system, the HLB3 of emulsifier～5 scopes are proper; For the O/W system, the HLB range of choice of emulsifier is 12-15, as AEO-9, and TX-10 etc.2. the consumption of emulsifier increases, and oil/water termination film strength increases, and the stability of emulsion increases.The consumption of emulsifier is generally between 0.5～10%.3. add some fatty acid, fatty alcohol, fatty amine,, increase surperficial film strength to reduce surface tension.For example, Span-80 and oleyl alcohol is composite.4. oil-soluble and water soluble surfactant active's acting in conjunction constitutes blended emulsifier, forms the interfacial film of higher-strength.For example, Span-80 and Tween-80's is composite.5. increase the viscosity of dispersion medium.The stability of jar interior content after the can: mainly be to inscribe between the stability between feed liquid and the propellant.At present the main propellant that uses in the world has three classes: 1. liquefied petroleum gas (third/butane), and actual amount accounts for 90%; 2. dimethyl ether; 3. compressed gas etc.For the feed liquid of w/o type emulsification, when using oil-soluble propellant (for example liquefied petroleum gas), a large amount of propellants add the ratio that the people can change oil phase and water greatly, viscosity of sludge can reduce a lot, the density contrast of oil, water becomes big simultaneously, and the layering of oil, water is more rapid, even breakdown of emulsion; When use has strong solvent, not only water-soluble, but also when being dissolved in the dimethyl ether of oil, will inevitably cause the W/O emulsion breaking.For the emulsion of O/W type, the affiliation that adds of oil-soluble propellant produces extraction to the active ingredient that is wrapped in aqueous phase, and quickens oil, water stratification; And after adding people's dimethyl ether, may produce two kinds of effect-breakdowns of emulsion or solubilising and close.Because above reason, thus in just having caused after the can jar Dissolve things inside stability between topic.The way that solves is: 1. will add excessive emulsifier in prescription, add some thickeners of people in case of necessity; 2. select the appropriate propellant mixture of relative density for use.3. method should be more feasible.
Technical scheme of the present invention is as follows:
1. be emulsifier with surfactants such as span-80, tween-80, strengthen the compatibility of water oil two-phase, because influencing the principal element of emulsion preparation quality has: mixing speed, add water time (adding water speed), preparation temperature etc., therefore select best process conditions to guarantee that the stability of product becomes a key technical problem.
2. when configuration aqua type aerosol, the biology effect of used insecticide may reduce, this depends on the actual formulation and the expection application target of this product, in order to compensate this point, need additionally increase the consumption of some active ingredients in product, this recruitment can be decided by comparative trial.
Beneficial effect of the present invention:
One of important feature of the present invention is: adopting water is main formulation, replaces in the past deodorized kerosine and alcohol, helps environmental protection on the one hand, greatly reduces energy loss on the other hand again, so greatly reduce production cost, is fit to China's national situation.
Two of important feature of the present invention is: the propellant of water-base pesticide aerosols use in the past is CFCs (freon), because CFCs can destroy atmospheric ozone layer, so forbid to use CFCs according to " Montreal environmental protection agreement " regulation, at this situation, we release the propellant that uses low VOC and low ODP, are " green " engineerings of eliminating environmental pollution.
Embodiment
Embodiment 1
| N-decane | ??25,20kg |
| N-tetradecane | ??50,32kg |
| Essence | ??8,83kg |
| Epoxidized linseed (CAS 8016-11-3) | ??4,00kg |
| Tween-80 (CAS 9005-65-6) | ??1,02kg |
| Arlacel-80 (CAS 1338-43-8) | ??7,79kg |
| Phenothrin | ??1,12kg |
| Dtetramethrin | ??0,82kg |
Embodiment 2
| N-decane | ??21,20kg |
| N-tetradecane | ??56,32kg |
| Essence | ??5,83kg |
| Epoxidized linseed (CAS 8016-11-3) | ??5,60kg |
| Tween-80 (CAS 9005-65-6) | ??1,92kg |
| Arlacel-80 (CAS 1338-43-8) | ??7,29kg |
| Phenothrin | ??0,72kg |
| Dtetramethrin | ??1,02kg |
Claims (4)
1. the development of water-based type insect aerosol and exploitation is characterized in that: adopting water is main formulation, replaces in the past deodorized kerosine and alcohol, helps environmental protection on the one hand, greatly reduces energy loss on the other hand again, so greatly reduce production cost.
2. the development of water-based type insect aerosol and exploitation is characterized in that: the propellant of selecting for use is for the material of low ODP, as HCFC-141b, dimethyl ether, third butane etc.
3. the development of water-based type insect aerosol and exploitation is characterized in that: the emulsifier of selecting for use is a composite emulsifier, as Tween-80, Arlacel-80 etc.
4. the development of water-based type insect aerosol and exploitation is characterized in that: the insecticide active ingredient of selecting for use is Phenothrin, dtetramethrin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200470A CN101683070A (en) | 2008-09-25 | 2008-09-25 | Water-based type insect aerosol research and development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810200470A CN101683070A (en) | 2008-09-25 | 2008-09-25 | Water-based type insect aerosol research and development |
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| Publication Number | Publication Date |
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| CN101683070A true CN101683070A (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810200470A Pending CN101683070A (en) | 2008-09-25 | 2008-09-25 | Water-based type insect aerosol research and development |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126575A (en) * | 2014-07-18 | 2014-11-05 | 蔡荣昌 | Environment-friendly household water-based insecticidal aerosol |
| CN104145998A (en) * | 2014-07-17 | 2014-11-19 | 蔡荣昌 | Environment-friendly water-based household insect aerosol and preparation method thereof |
-
2008
- 2008-09-25 CN CN200810200470A patent/CN101683070A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104145998A (en) * | 2014-07-17 | 2014-11-19 | 蔡荣昌 | Environment-friendly water-based household insect aerosol and preparation method thereof |
| CN104126575A (en) * | 2014-07-18 | 2014-11-05 | 蔡荣昌 | Environment-friendly household water-based insecticidal aerosol |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100331 |