CN114246183B - Cockroach repellent composition and preparation method thereof - Google Patents
Cockroach repellent composition and preparation method thereof Download PDFInfo
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- CN114246183B CN114246183B CN202111465488.1A CN202111465488A CN114246183B CN 114246183 B CN114246183 B CN 114246183B CN 202111465488 A CN202111465488 A CN 202111465488A CN 114246183 B CN114246183 B CN 114246183B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
- A01N25/06—Aerosols
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to a cockroach-repellent composition and a preparation method thereof. The cockroach repellent composition comprises the following raw material components in percentage by weight: 0.5 to 15 percent of benzyl benzoate, 0.2 to 3.5 percent of polyethylene glycol and 81.5 to 99 percent of solvent; the solvent is selected from at least one of alcohol solvents, ether solvents and oil solvents; or a combination of water and at least one of an alcohol solvent, an ether solvent and an oil solvent. The cockroach repellent agent adopts benzyl benzoate, has better safety, can be uniformly dispersed in a specific solvent after being reasonably proportioned with polyethylene glycol, can form a uniform cockroach repellent barrier on the application surface after application, can achieve the effect of long-acting cockroach repellent, has dry and comfortable application surface, and is very suitable for special places where products containing pesticide components are not suitable to be used, and the sanitary requirement is high or the environmental condition is complex.
Description
Technical Field
The invention relates to the field of repellents, in particular to a cockroach repellent composition and a preparation method thereof.
Background
Cockroaches belong to the class of insects, are widely distributed in tropical and subtropical areas, have extremely strong viability and reproductive capacity, and are common pests. The cockroach carries 40-50 bacteria which are pathogenic to vertebrates, such as escherichia coli, bacillus dysenteriae, plague bacillus and the like; the cockroaches can carry various vermicular eggs such as roundworms, duodenal-hook nematodes, beef tapeworms, pinworms, whipworms and the like, and can move in places such as garbage, toilets, washrooms and the like and take food because of wide invasion surface and edible impurities, so that the spread of intestinal diseases and parasitic eggs caused by the vermicular eggs cannot be ignored; in addition, cockroaches can induce allergic reactions in human bodies, such as allergic asthma, dermatitis and other diseases. Cockroaches prefer to select warm, moist, food-rich and multi-gap habitat, which is the basic condition for their development, and are generally present in buildings where people live and live, so cockroaches become sanitary pests that attack thousands of households. Therefore, the cockroach control agent has very important significance for the cockroach control.
Traditionally, chemical pesticides have been used for cockroaches, including organic pesticides (organochlorine, organophosphorus, organosulfur agents, carbamates and pyrethroids), inorganic pesticides (inorganic arsenic, inorganic fluorine, inorganic sulfur agents), vegetable pesticides, mineral oil pesticides and microbial pesticides. Spraying chemical pesticides can quickly and directly kill cockroaches, but at the same time has some drawbacks. On the one hand, due to the fact that the abuse of chemical pesticides in recent years leads to the generation of serious drug resistance and interactive resistance of cockroaches, the cockroaches can reduce the effect of the pesticides from the aspects of contact resistance and target resistance, so that the control effect is greatly reduced; on the other hand, the pesticide has short pesticide effect after pesticide application, has cockroach preventing effect generally when pesticide application is carried out, has no cockroach preventing effect after pesticide application is stopped, often needs repeated and repeated frequent pesticide application, and is unsuitable for frequently spraying chemical pesticides in special places with high sanitary requirement level or complex environmental conditions, especially food-related places such as restaurants, kitchens and the like. In this context, cockroach repellent products are gradually evolving.
The common cockroach repellent products mainly adopt pyrethrin, pyrethroid, camphor and the like as main components of the cockroach repellent, however, the components are common additive components in pesticides, so the cockroach repellent products often have the effects of killing and repelling cockroaches, but not simply exert the effect of repelling, and the cockroach repellent products inevitably have the defect that the pesticides are easy to cause drug resistance due to the components added with the pesticides, have poor long-term repellent effect on cockroaches, have the problems of high toxicity or odor stimulation, have adverse effects on the environment and organisms, and are still not applicable to special places with high sanitary requirements or complex environmental conditions.
Disclosure of Invention
Based on the above, the invention provides a cockroach repellent composition with long-acting cockroach repellent effect and a preparation method thereof, and the cockroach repellent composition can be applied by coating or spraying, is convenient to apply and is safer to the environment and organisms.
The specific technical scheme is as follows:
in a first aspect of the invention, a cockroach repellent composition is provided, which comprises the following raw material components in percentage by weight: 0.5 to 15 percent of benzyl benzoate, 0.2 to 3.5 percent of polyethylene glycol and 81.5 to 99 percent of solvent;
the molecular weight of the polyethylene glycol is 200-600;
the solvent is selected from at least one of alcohol solvents, ether solvents and oil solvents; or a combination of water and at least one of an alcohol solvent, an ether solvent and an oil solvent.
In one embodiment, the solvent is selected from an alcohol solvent, or a combination of an alcohol solvent and water.
In one embodiment, the alcohol solvent is at least one selected from ethanol, ethylene glycol, isopropanol, and 1, 3-propanediol.
In one embodiment, the ether solvent is at least one selected from propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, and diethylene glycol butyl ether.
In one embodiment, the oil solvent is selected from at least one of kerosene, deodorized kerosene, soybean oil, and corn oil.
In one embodiment, the raw material components comprise, in weight percent: 1 to 12 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 85 to 97 percent of solvent.
In one embodiment, the raw material components comprise, in weight percent: 2 to 8 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 89 to 97 percent of solvent.
In one embodiment, the raw material components comprise, in weight percent: 3 to 5 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 92 to 96 percent of solvent.
In a second aspect of the present invention, there is provided the method for preparing a cockroach repellent composition as described above, wherein the cockroach repellent composition is prepared by mixing the raw material components.
In one embodiment, the method for preparing the cockroach repellent composition comprises the following steps:
mixing the benzyl benzoate with polyethylene glycol to prepare a solution A;
and adding the solvent into the solution A, and mixing to prepare the cockroach repellent composition.
Compared with the prior art, the invention has the following beneficial effects:
the invention uses benzyl benzoate, polyethylene glycol and proper solvent in a matching way, and reasonably controls the proportion of each component, and the prepared cockroach repellent composition has the following advantages:
(1) After the prepared cockroach-repellent composition is coated or sprayed on the ground or a wall surface, the effect of long-acting cockroach-repellent can be achieved, repeated and frequent pesticide application is not needed, and the solvent carrier can be quickly evaporated, so that the pesticide-application surface is dry and free from oil stains, and the cockroach-repellent composition is very good in selection for some special places which are not suitable for products with pesticide components and have high sanitary requirements or complex environmental conditions, and is also suitable for household use;
(2) The cockroach-repellent composition disclosed by the invention has the advantages of wide sources of raw material components, non-pesticide components, no pungent smell, low environmental residue, safety to human beings and animals, and the problems of environmental pollution, drug resistance and the like caused by using common pesticide components are avoided.
Detailed Description
In order that the invention may be understood more fully, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended claims. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The term "and/or," "and/or," as used herein, includes any one of two or more of the listed items in relation to each other, as well as any and all combinations of the listed items in relation to each other, including any two of the listed items in relation to each other, any more of the listed items in relation to each other, or all combinations of the listed items in relation to each other.
In the present invention, "first aspect", "second aspect", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity, nor as implying an importance or quantity of the indicated technical features. Moreover, "first," "second," etc. are for non-exhaustive list description purposes only, and it should be understood that no closed limitation on the number is made.
In the invention, the technical characteristics described in an open mode comprise a closed technical scheme composed of the listed characteristics and also comprise an open technical scheme comprising the listed characteristics.
In the present invention, the numerical ranges are referred to as continuous, and include the minimum and maximum values of the ranges, and each value between the minimum and maximum values, unless otherwise specified. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.
The percentages related in the present invention refer to mass percentages for solid-liquid mixing, solid-solid mixing and liquid-liquid mixing unless otherwise specified.
The term "cockroach repellent" appearing in the present invention means an action of repelling cockroaches; the term "cockroach repellent" refers to a compound or composition having a cockroach repelling effect, and the cockroach repellent in the present invention refers to benzyl benzoate, unless otherwise specified, having a chemical structural formula shown in (I):
benzyl benzoate is an organic compound, is mainly used as a solvent of artificial musk, vanillin and other fragrances, a fragrance fixative of floral essence and a blended fragrance of ylang essence, and is used for treating scabies in clinic, and is also used for preparing pertussis medicines and asthma medicines, so that compared with pesticide components, benzyl benzoate is safer for the environment and organisms. The benzyl benzoate has light fragrance similar to almond, and can act on cockroaches through the combined action of smell sense and touch sense, so that the cockroaches are repelled. However, benzyl benzoate is a colorless or pale yellow viscous liquid at room temperature, which is difficult to apply directly in practical applications, especially in the form of benzyl benzoate coating for corners and areas that are not directly accessible. In addition, the viscous nature makes it difficult for benzyl benzoate to be evenly distributed across the application face, thereby affecting the effectiveness and experience of use.
The invention provides a cockroach-repellent composition which comprises the following raw material components in percentage by weight: 0.5 to 15 percent of benzyl benzoate, 0.2 to 3.5 percent of polyethylene glycol and 81.5 to 99 percent of solvent;
wherein the molecular weight of the polyethylene glycol is 200-600;
the solvent is selected from at least one of alcohol solvents, ether solvents and oil solvents; or a combination of water and at least one selected from the group consisting of alcohol solvents, ether solvents and oil solvents. Specifically, the weight percentages of benzyl benzoate include, but are not limited to: 0.5%, 1%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%; the weight percentages of polyethylene glycol include, but are not limited to: 0.2%, 0.5%, 1%, 1.5%, 2%, 2.5%, 2.7%, 3%, 3.5%.
The cockroach repellent composition has wide sources of raw material components, wherein benzyl benzoate which is not an insecticide component is adopted as a cockroach repellent, and the prepared cockroach repellent composition has no pungent smell, low environmental residue, safety to people and livestock, and the problems of environmental pollution, drug resistance and the like caused by using common insecticide components are avoided.
In one example, the solvent is selected from an alcohol solvent, or a combination of an alcohol solvent and water.
In one example, the water is tap water or deionized water. Further, the water is deionized water.
In one example, the alcohol solvent is selected from at least one of ethanol, ethylene glycol, isopropyl alcohol, and 1, 3-propylene glycol. Further, the alcohol solvent is ethanol. Further, the alcohol solvent is absolute ethanol.
In one example, the ether solvent is selected from at least one of propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, and diethylene glycol butyl ether.
In one example, the oil solvent is selected from at least one of kerosene, deodorized kerosene, soybean oil, and corn oil.
In the invention, specific solvents are adopted to be matched with benzyl benzoate and polyethylene glycol serving as cockroach repellents, the proportion of each component is reasonably controlled, benzyl benzoate can be uniformly dispersed in a carrier, the application of the cockroach repellents is convenient, a uniform cockroach repellent barrier can be formed on the application surface after the application, and the cockroach repellent can be applied to corners and areas which are inconvenient to touch directly in a spraying mode.
In one example, the cockroach repellent composition comprises the following raw material components in percentage by weight: 1 to 12 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 85 to 97 percent of solvent.
Further, the cockroach repellent composition comprises the following raw material components in percentage by weight: 2 to 8 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 89 to 97 percent of solvent.
Further, the cockroach repellent composition comprises the following raw material components in percentage by weight: 3 to 5 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 92 to 96 percent of solvent.
It will be appreciated that in the present invention, when some specific types of solvents are used, suitable auxiliaries may be further used in combination to allow better dispersion of the cockroach repellent. In one example, the cockroach repellent composition comprises the following raw material components in percentage by weight: 0.5 to 15 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol, 0.4 to 0.5 percent of auxiliary agent and 81.5 to 98.9 percent of solvent; wherein, the auxiliary agent is sorbitan fatty acid ester, and the solvent is the combination of deodorized kerosene and deionized water.
In the invention, polyethylene glycol with a specific proportion is added into the raw materials to be interacted and combined with benzyl benzoate, and polyethylene glycol fine particles wrapping the benzyl benzoate can be attached to the drug application surface to form a stable cockroach repellent barrier, so that the benzyl benzoate is continuously and slowly released into the environment according to a certain concentration, and the cockroach repellent effect of the product is greatly prolonged. In addition, benzyl benzoate as cockroach repellent is colorless or light yellow viscous liquid at room temperature, is difficult to directly apply in practical application, and especially can not be applied in the form of coating benzyl benzoate on corners and areas which cannot be directly touched, and the viscous property makes benzyl benzoate difficult to uniformly distribute on the application surface, so that the application effect and experience are affected.
The invention also provides a preparation method of the cockroach-repellent composition, which comprises the steps of mixing raw material components to prepare the cockroach-repellent composition.
In one example, the preparation method comprises the steps of:
mixing benzyl benzoate with polyethylene glycol to prepare solution A;
adding solvent into the solution A, mixing, and preparing into cockroach repellent composition.
It will be appreciated that in the present invention, where some specific types of solvents are employed, adjuvants may be added in appropriate preparation steps.
In one example, the preparation method comprises the steps of:
mixing benzyl benzoate with an auxiliary agent to prepare a solution A;
mixing polyethylene glycol with a solvent to prepare a solution B;
and adding the solution B into the solution A, and stirring to prepare the cockroach-repellent composition.
In the invention, benzyl benzoate, polyethylene glycol and a proper solvent are matched for use, and the proportion of each component is reasonably controlled, and the prepared cockroach repellent composition has the following advantages:
(1) After the prepared cockroach-repellent composition is coated or sprayed on the ground or a wall surface, polyethylene glycol fine particles coated with benzyl benzoate can be adhered to the application surface to form a stable cockroach-repellent barrier, so that benzyl benzoate is continuously and slowly released into the environment according to a certain concentration, the cockroach-repellent effect of a product is greatly prolonged, repeated and frequent application is not needed, and a solvent carrier can be quickly evaporated, so that the application surface is dry and comfortable, oil stains are not formed, and the cockroach-repellent composition is very good in selection for special places which are not suitable for products with pesticide components, high in sanitary requirements or complex in environmental conditions, and is also suitable for household use;
(2) The cockroach-repellent composition has wide sources of raw material components, wherein benzyl benzoate which is not an insecticide component is adopted as a cockroach-repellent agent, and the prepared cockroach-repellent composition has better safety, no pungent smell and low environmental residue, and avoids the problems of environmental pollution, drug resistance and the like caused by using common insecticide components.
The present invention will be described in further detail with reference to specific examples. The experimental methods in the following examples and comparative examples are conventional methods unless otherwise specified. The raw materials, reagents and the like used in the following examples and comparative examples were commercially available products unless otherwise specified.
Examples 1 to 5 and comparative examples 1 to 2
Examples 1 to 5 and comparative example 2 each provide a composition containing a cockroach repellent and a solvent, and comparative example 1 is a composition containing no benzyl benzoate. The specific formulation is shown in Table 1, wherein the values in the table are the weight percentages of each component in the corresponding raw materials.
Table 1 formulation tables of examples 1 to 5 and comparative examples 1 to 2
The preparation method of the composition of example 1 is as follows:
(1) Weighing raw materials according to the raw material formula of table 1;
(2) Adding benzyl benzoate into a reactor, adding absolute ethyl alcohol according to a certain proportion, and stirring until a clear and transparent solution is formed;
(3) Adding deionized water into the solution obtained in the step (2) according to the formula proportion, and continuing stirring until a clear and transparent solution is formed.
Examples 2 and 3 and comparative example 2 were prepared in the same manner as in example 1.
The preparation methods of examples 4 and 5 are the same as those of examples 1, steps (1) and (2).
The preparation method of the composition of comparative example 1 is as follows:
(1) Weighing raw materials according to the raw material formula of table 1;
(2) And (3) adding absolute ethyl alcohol and deionized water into the reactor according to the formula proportion, and uniformly stirring.
Examples 6 to 15 and comparative example 3
Examples 6 to 15 each provide a cockroach repellent composition comprising a cockroach repellent, polyethylene glycol and a solvent. Comparative example 3 provides a cockroach repellent composition comprising a cockroach repellent agent, white oil and a solvent. The specific formulation is shown in Table 2, wherein the values in the table are the weight percentages of the components in the corresponding raw materials.
Table 2 formulation tables of examples 6 to 15 and comparative example 3
The preparation method of the cockroach repellent composition of example 6 is as follows:
(1) Weighing raw materials according to the raw material formula of table 2;
(2) Adding benzyl benzoate into a reactor, proportionally adding PEG-400, and stirring uniformly to obtain solution A;
(3) Adding absolute ethyl alcohol into the solution A according to the formula proportion, and uniformly stirring; deionized water is added, and stirring is continued until a clear and transparent solution is formed.
The preparation method of the cockroach repellent composition of example 7 is as follows:
(1) Weighing raw materials according to the raw material formula of table 2;
(2) Putting the deodorized kerosene into a reactor I, adding benzyl benzoate and sorbitan fatty acid ester according to the formula proportion, and starting stirring until the deodorized kerosene is completely dissolved to obtain solution A;
(3) Taking another reactor II, putting deionized water into the reactor II, adding PEG-400 according to the formula proportion, and uniformly stirring to obtain solution B;
(4) Slowly adding the solution B into the solution A (stirring and adding) and continuing stirring until the solution B is milky uniform liquid.
Examples 8, 10, 12, 14 were prepared in the same manner as in example 6.
Examples 9, 11, 13 and 15 were prepared in the same manner as in example 7.
The preparation method of comparative example 3 is as follows:
(1) Weighing raw materials according to the raw material formula of table 2;
(2) Adding deodorized kerosene into a reactor, adding benzyl benzoate, white oil and sorbitan fatty acid ester according to the formula proportion, and stirring until the deodorized kerosene is completely dissolved to obtain solution A;
(3) Deionized water was slowly added to solution a (stirring while adding) and stirring was continued after the addition was completed until a milky homogeneous liquid was obtained.
Cockroach repelling effect test
The compositions prepared in examples 1 to 15 and comparative examples 1 to 3 were tested for cockroach-repellent effect, and the test apparatus, test conditions and specific test methods were as follows:
test device: a glass square box with the specification of 70cm and 70cm is internally provided with a cockroach hiding device, and water is placed beside the hiding device.
Test conditions: temperature (26 ℃ + -1 ℃), humidity (65% + -10%).
Testing insects: periplaneta americana.
The specific test method comprises the following steps:
test one: test of examples 1 to 5 and comparative examples 1 to 2
Placing the test insects into a glass square box, and taking two tiles with the specification of 30cm x 15cm after the test insects are hidden, and respectively named as T, C; 1.35 g of the compositions prepared in examples 1 to 5 were applied to the T surface and equal amounts of the compositions prepared in comparative examples 1 to 2 were applied to the C surface; after the liquid medicine was dried, 0.5g of powdery feed was placed in the center of T, C. T, C is placed in a glass square box in parallel, the feeding condition of the test insects on the feed on T, C is observed daily at intervals of 10cm, the cockroach expelling effect is judged to be lost once the feed is fed, and the number of days when the feed is not fed is the number of effective cockroach expelling days. Water is added in time in the testing process, and the feed is found to be mildewed and the like and needs to be replaced in time. The specific groupings and test results are shown in Table 3.
And II, testing: test of examples 6 to 15 and examples 1 to 5, comparative example 3
The specific test method is the same as method one, and the difference is only that: the cockroach repellent compositions prepared in examples 6 to 15 were applied to the T surface, and the compositions prepared in examples 1 to 5 and comparative example 3 were applied to the C surface in equal amounts. The specific groupings and test results are shown in Table 4.
Test results
Table 3 comparison of examples 1 to 5 and comparative examples 1 to 2
As is clear from Table 3, the compositions prepared in examples 1 to 5 of the present invention all exhibited a certain cockroach repellent effect, the effective number of cockroaches repellent was 2 to 11 days, and the effective number of cockroaches repellent of comparative example 2 was 0, indicating that the cockroach repellent composition prepared by using the cockroach repellent agent in a specific content range exhibited an effective cockroach repellent effect.
Table 4 comparison of examples 6 to 15 with examples 1 to 5 and comparative example 3
As can be seen from Table 4, the cockroach repellent compositions prepared in examples 6 to 15 of the present invention had effective cockroach repellent days of 12 to 42 days, and the compositions prepared in examples 1 to 5 had effective cockroach repellent days of 2 to 11 days; in each group, the content of cockroach repellent in the T group and the C group is the same, the effective cockroach repellent number of T is larger than C, and the effective cockroach repellent number of T is more than 3-6 times of C. The cockroach-repellent composition prepared by the invention can greatly prolong the cockroach-repellent time, and has obvious long-acting cockroach-repellent effect. In addition, in the case of containing the same content of the cockroach repellent, comparative example 3 used white oil as a slow-release agent, and the effective cockroach repellent composition prepared was lower in number of days than example 7.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. The cockroach repellent composition is characterized by comprising the following raw material components in percentage by weight: 0.5 to 15 percent of benzyl benzoate, 0.2 to 3.5 percent of polyethylene glycol and 81.5 to 99 percent of solvent;
the molecular weight of the polyethylene glycol is 200-600;
the solvent is selected from at least one of alcohol solvents and oil solvents; or a combination of water and at least one of an alcohol solvent and an oil solvent;
the alcohol solvent is at least one selected from ethanol and isopropanol;
the oil solvent is selected from at least one of kerosene and deodorized kerosene.
2. The cockroach repellent composition of claim 1, wherein the alcoholic solvent is selected from ethanol.
3. The cockroach repellent composition of claim 1, wherein the oil solvent is selected from deodorized kerosene.
4. The cockroach repellent composition of claim 1, wherein the raw material components comprise, in weight percent: 1 to 12 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 85 to 97 percent of solvent.
5. The cockroach repellent composition of claim 4, wherein the raw material components comprise, in weight percent: 2 to 8 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 89 to 97 percent of solvent.
6. The cockroach repellent composition of claim 5, wherein the raw material components comprise, in weight percent: 3 to 5 percent of benzyl benzoate, 0.2 to 3 percent of polyethylene glycol and 92 to 96 percent of solvent.
7. The cockroach repellent composition according to any one of claims 1 to 6, wherein the solvent is selected from a combination of water and at least one of the alcohol solvents and the oil solvents.
8. The method for producing a cockroach repellent composition according to any one of claims 1 to 7, characterized in that the cockroach repellent composition is produced by mixing the raw material components.
9. The method for preparing the cockroach repellent composition according to claim 8, comprising the steps of:
mixing the benzyl benzoate with polyethylene glycol to prepare a solution A;
and adding the solvent into the solution A, and mixing to prepare the cockroach repellent composition.
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| CN202111465488.1A CN114246183B (en) | 2021-12-01 | 2021-12-01 | Cockroach repellent composition and preparation method thereof |
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| JP5097390B2 (en) * | 2006-11-22 | 2012-12-12 | 大阪化成株式会社 | Pest repellent |
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