CN102696604A - Method for preparing mosquito slow-release attractant - Google Patents
Method for preparing mosquito slow-release attractant Download PDFInfo
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- CN102696604A CN102696604A CN2012101617616A CN201210161761A CN102696604A CN 102696604 A CN102696604 A CN 102696604A CN 2012101617616 A CN2012101617616 A CN 2012101617616A CN 201210161761 A CN201210161761 A CN 201210161761A CN 102696604 A CN102696604 A CN 102696604A
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Abstract
The invention discloses a method for preparing a mosquito slow-release attractant. The method comprises the following steps: dissolving the following components by weight: 7-10 parts of 1-octen-3-ol, 2-5 parts of heptyl acetate and 6-9 parts of nonylacetate in an organic solvent with 100 parts in volume for later use; stirring 1000-7500 parts of polyatomic alcohol of which the molecular weight is less than 5000 for 60 minutes under the conditions that the temperature is 40-75 DEG C and the vacuum degree is -0.1Mpa; adding the solution for later use into the polyatomic alcohol; continuously stirring to be uniform under the conditions that the temperature is 40-75 DEG C and the vacuum degree is -0.1Mpa; adding 2500-10000 parts of isocyanate by weight; continuously stirring for 120 minutes; stopping stirring and vacuumizing to obtain the pasty mosquito slow-release attractant. With the adoption of the prepared mosquito slow-release attractant, culex pipiens pallens, aedes albopictus and other mosquitoes can be continuously effectively attracted with high attraction efficiency; the method is simple; the environment cannot be polluted by the raw materials; and the release speed is stable.
Description
Technical field
The invention belongs to technical field of bioengineering, be specifically related to a kind of preparation method of mosquito slow release attractant.
Background technology
Mosquito belongs to Insecta (Isecta), diptera (Diptera), Dulicidae (Culicidae), is one of important sanitary insect pest, also is the amboceptor insect of most important propagation disease.Mosquito can also be propagated multiple animal and human's class disease except that direct absorption blood of human body, comprise yellow fever, West Nile Virus, viral encephalitis, dengue fever, lymph filariosis etc.Live in the area that these killing propagation diseases widely take place according to nearly in the world 2,000,000,000 people of statistics of the World Health Organization.Common biography disease mosquito kind has: eight kinds of Culex pipiens pallens, Culex bitaeniorhynchus, Culex quinquefasciatus, culex mimeticus, culex fuscanus, thin palpus culex, a palm fibre culex, aedes albopictus etc. wherein distribute extensively, endanger bigger with aedes albopictus and Culex pipiens pallens.Culex pipiens pallens is the main media of China's spread and epidemic property encephalitis B, and aedes albopictus is the main communication media of China's dengue fever and dengue hemorrhagic fever, also is one of main mosquito kind of city and each family's kill mosquito.The protection human body exempts from the important means that bite by mosquitos is prevention and control mosquito matchmaker infectious disease, particularly some is not still had the mosquito matchmaker infectious disease that vaccine does not have specific drug yet at present, walks quickly and keeps away and lure killing mosquitoes to become the most feasible method.
At present; The main chemical control method of using in mosquito control; The long-term a large amount of control of use of insecticide separately mosquito has caused mosquito generally to produce pesticide resistance in various degree, in addition; Use pesticides indiscriminately and also can cause serious environmental to pollute, and health is constituted another kind of the threat.Therefore, research and develop effective mosquito control new method and just seem very necessary and important.Simultaneously in order to reach the development that continues better prevention effect and delaying drug resistance, prevent and treat the method that mosquito will be a kind of effective, potentialization as main body with attractant.Mosquito there is the material of attracting action combine, can improves effect exterminating mosquito on the one hand, can reduce the usage amount of chemical agent in the mosquito control on the other hand and help protecting environment with other mosquito physical control methods.
At present, disclosed lure technology exists the specific aim of mosquito not strong in practical application, and attractant exists that volatilization is fast, the lasting period is short, and attracting ability is limited, or defective such as its complicated process of preparation.
Summary of the invention
Weak point to attractant existence in the prior art; There is the problem that volatilization is fast, the lasting period is short in order to overcome existing mosquito attractant simultaneously, the objective of the invention is to, a kind of preparation method of mosquito slow release attractant is provided; This method is wrapped in the attractant composition in the polymeric membrane of polyalcohol and the generation of isocyanates polymerisation; Reach the effect that the attractant composition slowly discharges, be applicable to indoor and open-airly to comprise that the multiple mosquito of Culex pipiens pallens, aedes albopictus lures collection, lured the efficient height; Cheap, draw materials extensively.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of preparation method of mosquito slow release attractant is characterized in that, implements according to the following step:
(1) be dissolved in the organic solvent of 100 parts by volume the methyl indol (nonylacetate) of the heptyl acetate (heptyl acetate) of the 1-octene of 7 ~ 10 weight portions-3-alcohol, 2 ~ 5 weight portions, 6 ~ 9 weight portions subsequent use; Organic solvent is the conventional organic solvent that uses.
(2) < polyalcohol of 5000 1000 ~ 7500 weight portions stirs 60min at 40 ℃ ~ 75 ℃, vacuum under-0.1Mpa the condition with molecular weight;
(3) stock solution with step (1) joins in the polyalcohol of step (2); And continue to stir the isocyanates that adds 2500 ~ 10000 weight portions then under-0.1Mpa the condition at 40 ℃ ~ 75 ℃, vacuum; Continue to stir 120min; Stirring vacuumizes after stopping, and obtains the mosquito slow release attractant of paste.
Described polyalcohol is polybutadiene, end hydroxy polyether resin or hydroxyl telechelic polyester resin.
Described isocyanates is toluene di-isocyanate(TDI), hexamethylene vulcabond or polymeric rings hexamethylene diisocyanate.
The preparation method of mosquito slow release attractant of the present invention; Adopt polyalcohol and isocyanates to react and generate a kind of polymeric membrane; Three kinds of attractants (being 1-octene-3-alcohol, heptyl acetate (heptylacetate), methyl indol (nonylacetate)) are wrapped in having in the infiltrative polymeric membrane of polyalcohol and isocyanate reaction gained; Reached the effect that the attractant composition slowly discharges; The multiple mosquito of Culex pipiens pallens, aedes albopictus be can attract to comprise strongly, good lasting period and good attractant effect shown in test.Be mainly used in the collection that lures indoor and Culex pipiens pallens and aedes albopictus.If in the initial stage of mosquito generation, can concentrate trapping to adult mosquito, will greatly reduce mosquito specie quantity, reduce the diffusion of chemical agent, minimizing man dwells, and mosquito harasses and thorn is stung probability, will become the more efficiently method of prevention and control mosquito matchmaker infectious disease.In addition, preparation method of the present invention is simple, and to not polluting environment, safer to people and animals.
Embodiment
Present embodiment provides a kind of preparation method of new mosquito slow release attractant, and implementation step is:
(1) be dissolved in the organic solvent of 100 parts by volume the methyl indol (nonylacetate) of the heptyl acetate (heptyl acetate) of the 1-octene of 7 ~ 10 weight portions-3-alcohol, 2 ~ 5 weight portions, 6 ~ 9 weight portions subsequent use;
(2) < polyalcohol of 5000 1000 ~ 7500 weight portions stirs 60min at 40 ℃ ~ 75 ℃, vacuum under-0.1Mpa the condition with molecular weight;
(3) stock solution with step (1) joins in the polyalcohol of step (2); And at 40 ℃ ~ 75 ℃, vacuum be-continue to stir under the 0.1Mpa condition until evenly; The isocyanates that adds 2500 ~ 10000 weight portions then; Continue to stir 120min, vacuumize after stirring stops, obtaining the mosquito slow release attractant of paste.
Through the applicant experiment showed, this mosquito slow release attractant have the lasting period long, efficient is high, stable characteristics such as rate of release are run off, have in the decomposition that can reduce or avoid attractant to cause because of external environment.
Below be the embodiment that the inventor provides, need to prove that these embodiment only supply those skilled in the art to make much of the present invention, the invention is not restricted to these embodiment.
In following embodiment, polyalcohol is selected polybutadiene, end hydroxy polyether resin or hydroxyl telechelic polyester resin.Isocyanates is selected toluene di-isocyanate(TDI), hexamethylene vulcabond or polymeric rings hexamethylene diisocyanate.Organic solvent is conventional solvent, for example acetone or ethyl acetate.
For convenience of calculation, among the following embodiment, 1 weight portion is defined as 1g, 1 parts by volume is defined as 1ml.
Embodiment 1:
With attractant 1-octene-3-alcohol: 7g, heptyl acetate (heptyl acetate): 3g, methyl indol (nonylacetate): 6g dissolves in the acetone of 100ml, and is subsequent use;
With molecular weight be 3000 polybutadiene 1kg at 40 ℃, vacuum is-0.1Mpa stirs 60min down;
The solution of above-mentioned acetone solution is joined in the polybutadiene after the stirring, at 40 ℃, vacuum is-0.1Mpa continues down to stir until evenly; The toluene di-isocyanate(TDI) that adds 4.5kg then; Continue to stir 120min, vacuumize after stirring stops, obtaining the mosquito slow release attractant of paste;
The mosquito slow release attractant of paste is processed the capsule of 5g/ grain according to the capsule preparation method of routine.Three kinds of attractant compositions (being 1-octene-3-alcohol, heptyl acetate (heptyl acetate) and methyl indol (nonylacetate)) all are wrapped in polybutadiene and toluene di-isocyanate(TDI) reacts in the polymeric membrane of the polyurethane that generates.This capsule particle packed in the glass flask or be contained in the glass flask of other tool plugs use, perhaps combine other mosquito killing devices to use together the mosquito slow release attractant that obtains.
Embodiment 2:
With attractant 1-octene-3-alcohol: 10g, heptyl acetate (heptylacetate): 4g, methyl indol (nonylacetate): 8g dissolves in the acetone of 100ml, and is subsequent use;
With molecular weight is 2000 end hydroxy polyether resin 1kg, 75 ℃ of vacuums is-stir 60min under the 0.1Mpa;
The solution of above-mentioned acetone solution is joined in the end hydroxy polyether resin after the stirring; At 40 ℃; Vacuum is-0.1Mpa continues down to stir until evenly; The hexamethylene vulcabond that adds 5kg then continues to stir 120min at 75 ℃, vacuum down for-0.1Mpa, vacuumizes after stirring stops, and obtains the mosquito slow release attractant of paste;
With the mosquito slow release attractant of paste, process the capsule particle of 5g/ grain again according to the capsule preparation method of routine.Three kinds of attractant compositions (being 1-octene-3-alcohol, heptyl acetate (heptylacetate), methyl indol (nonylacetate)) all are wrapped in the polymeric membrane of the polyurethane that end hydroxy polyether resin and hexamethylene di-isocyanate reaction generate.This capsule particle packed in the glass flask or be contained in the glass flask of other tool plugs use, perhaps combine other mosquito killing devices to use together the mosquito slow release attractant that obtains.
Embodiment 3:
With attractant 1-octene-3-alcohol: 9g, heptyl acetate (heptyl acetate): 9g, methyl indol (nonylacetate): 5g dissolves in the acetone of 100ml, and is subsequent use;
With molecular weight is 2000 end hydroxy polyether resin 1kg, and at 75 ℃, vacuum is-and 0.1Mpa stirs 60min down;
The solution of above-mentioned acetone solution is joined in the end hydroxy polyether resin after the stirring; The hexamethylene vulcabond that adds 5kg then; At 75 ℃, vacuum be-continue to stir 120min under the 0.1Mpa, stir and vacuumize after stopping, obtaining the mosquito slow release attractant of paste;
With the mosquito slow release attractant of paste, process the capsule particle of 5g/ grain again according to the capsule preparation method of routine.Three kinds of attractant compositions (being 1-octene-3-alcohol, heptyl acetate (heptyl acetate), methyl indol (nonylacetate)) all are wrapped in the polymeric membrane of the polyurethane that end hydroxy polyether resin and hexamethylene di-isocyanate reaction generate.This capsule particle packed in the glass flask or be contained in the glass flask of other tool plugs use, perhaps combine other mosquito killing devices to use together the mosquito slow release attractant that obtains.
Embodiment 4:
Attractant 1-octene-3-is pure: 10g, heptyl acetate (heptyl acetate): 2g, methyl indol (nonylacetate); 4g dissolves in the ethyl acetate of 100ml, and is subsequent use;
With molecular weight is 2500 polybutadiene 1kg, and at 55 ℃, vacuum is-and 0.1Mpa stirs 60min down;
The solution of above-mentioned acetic acid ethyl dissolution is joined in the polybutadiene after the stirring; At 55 ℃, vacuum be-continue to stir under the 0.1Mpa until evenly; Add toluene di-isocyanate(TDI) 7.5kg then; Continue to stir 120min, vacuumize after stirring stops, obtaining the mosquito slow release attractant of paste.
With the mosquito slow release attractant of paste, process the capsule particle of 5g/ grain again according to the capsule preparation method of routine.Three kinds of attractant compositions (being 1-octene-3-alcohol, heptyl acetate (heptyl acetate), methyl indol (nonylacetate)) all are wrapped in the polymeric membrane of polybutadiene and toluene di-isocyanate(TDI) reaction generation.This capsule particle packed in the glass flask or be contained in the glass flask of other tool plugs use, perhaps combine other mosquito killing devices to use together the mosquito slow release attractant that obtains.
Experiment according to the applicant shows that this mosquito sustained release agent has good lasting period and good attractant effect.
EXPERIMENTAL EXAMPLE:
Laboratory experiment place: Baoji, Shaanxi province city living community
Four MT-1 (the grand hat in Beijing Science and Technology Ltd.) mosquito trapper is adopted in experiment, numbers 1,2,3 and 4 respectively.Wherein, being numbered and putting into liquid lactic acid in 1 the mosquito eradication machine is attractant, is numbered in 2 the mosquito eradication machine and does not put into any attractant, is numbered the mosquito slow release attractant of putting into embodiment 1 gained in 3 and 4 the mosquito eradication machine.
Four mosquito eradication machines are placed within doors four drift angles of (length of side is 10m) respectively by 1,3,2,4 number order.Each one day, four mosquito eradication machines were rotated a position in the direction of the clock.Therapy lasted 16 days.Every day mosquito eradication machine to catch mosquito quantity record as shown in table 1, it is as shown in table 2 that every mosquito eradication machine was on average caught the mosquito number in 16 days.
Can find out from the experimental data of table 1: No. 3 and No. 4 mosquito eradication machines placing the mosquito slow release attractant of the present invention's preparation; In the quantity of 16 days IT mosquitoes of test all more than 300; Sum is relatively stable, and this shows that this mosquito slow release attractant rate of release is steady; With liquid lactic acid as No. 1 mosquito eradication machine of attractant begin several days catch the mosquito number about about 100; And along with the carrying out of testing; The sum of luring mosquito every day is in continuous minimizing, shows the liquid lactic acid of using without any processing as attractant, and rate of release is stable inadequately; And do not place any attractant No. 2 mosquito eradication machine every days catch mosquito quantity seldom.
Table 1: catch mosquito number (individual/sky) every day of every mosquito eradication machine
Table 2: every mosquito eradication machine 16 days on average catch mosquito number (individual)
| The mosquito eradication machine numbering | 1 | 2 | 3 | 4 |
| On average catch mosquito number/sky | 109 | 28 | 325 | 317 |
Demonstrate from the test data of table 2: do not add any attractant, merely with CO
2Attract No. 2 mosquito eradication machines of mosquito with moisture, its quantity of catching mosquito obviously is less than 1,3, No. 4 mosquito eradication machine that adds attractant.And be that No. 1 mosquito eradication machine of attractant is caught 3, No. 4 mosquito eradication machines that the mosquito number obviously is less than the mosquito slow release attractant that adopts the present invention's preparation average every day with the liquid lactic acid, catch the mosquito number its average every day and be merely 3, No. 4 mosquito eradication machines and catch 34.06% of mosquito number.
Claims (4)
1. the preparation method of a mosquito slow release attractant is characterized in that, implements according to the following step:
(1) be dissolved in the organic solvent of 100 parts by volume the methyl indol (nonylacetate) of the heptyl acetate (heptyl acetate) of the 1-octene of 7 ~ 10 weight portions-3-alcohol, 2 ~ 5 weight portions, 6 ~ 9 weight portions subsequent use;
(2) < polyalcohol of 5000 1000 ~ 7500 weight portions stirs 60min at 40 ℃ ~ 75 ℃, vacuum under-0.1Mpa the condition with molecular weight;
(3) stock solution with step (1) joins in the polyalcohol of step (2); And continue to stir the isocyanates that adds 2500 ~ 10000 weight portions then under-0.1Mpa the condition at 40 ℃ ~ 75 ℃, vacuum; Continue to stir 120min; Stirring vacuumizes after stopping, and obtains the mosquito slow release attractant of paste.
2. the method for claim 1, it is characterized in that: described polyalcohol is polybutadiene, end hydroxy polyether resin or hydroxyl telechelic polyester resin.
3. the method for claim 1, it is characterized in that: described isocyanates is toluene di-isocyanate(TDI), hexamethylene vulcabond or polymeric rings hexamethylene diisocyanate.
4. the method for claim 1, it is characterized in that: described organic solvent is acetone or ethyl acetate.
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| CN2012101617616A CN102696604A (en) | 2012-05-23 | 2012-05-23 | Method for preparing mosquito slow-release attractant |
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| CN2012101617616A CN102696604A (en) | 2012-05-23 | 2012-05-23 | Method for preparing mosquito slow-release attractant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105918363A (en) * | 2016-05-16 | 2016-09-07 | 周莉莉 | Slow-release mosquito attractant and preparation method thereof |
| CN105941509A (en) * | 2016-05-16 | 2016-09-21 | 张芳 | Mosquito sustained-release attractant and preparation method thereof |
| CN106172393A (en) * | 2016-07-31 | 2016-12-07 | 黄劼 | Mosquito-repellent water containing 1 octene 3 alcohol |
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| CN101703043A (en) * | 2009-11-10 | 2010-05-12 | 杜进平 | Preparation method of sexual attraction slow-release formulation for fruit flies |
| CN102125037A (en) * | 2011-01-12 | 2011-07-20 | 马晓光 | Mosquito trapping liquid |
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2012
- 2012-05-23 CN CN2012101617616A patent/CN102696604A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703043A (en) * | 2009-11-10 | 2010-05-12 | 杜进平 | Preparation method of sexual attraction slow-release formulation for fruit flies |
| CN102125037A (en) * | 2011-01-12 | 2011-07-20 | 马晓光 | Mosquito trapping liquid |
Non-Patent Citations (1)
| Title |
|---|
| 郝蕙玲，等: "气味调控的蚊虫行为学研究", 《中国媒介生物学及控制杂志》, vol. 17, no. 6, 31 December 2006 (2006-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105918363A (en) * | 2016-05-16 | 2016-09-07 | 周莉莉 | Slow-release mosquito attractant and preparation method thereof |
| CN105941509A (en) * | 2016-05-16 | 2016-09-21 | 张芳 | Mosquito sustained-release attractant and preparation method thereof |
| CN106172393A (en) * | 2016-07-31 | 2016-12-07 | 黄劼 | Mosquito-repellent water containing 1 octene 3 alcohol |
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Application publication date: 20121003 |