Novel rat-proof and ant-proof foam material and preparation method thereof

Abstract

The invention discloses a novel rat-proof and ant-proof foam material and a preparation method thereof, and relates to the technical field of foam materials. The novel rat-proof and termite-proof foam material comprises the following raw materials in parts by weight: 20-30 parts of water-based resin emulsion; the invention relates to an arabic gum modified melamine resin powder coating which comprises the following components in parts by weight: 50-70 parts of deionized water, 0.1-1.0 part of capsaicin, 3-10 parts of an alcohol solvent, 2-5 parts of alkali, 0.1-2 parts of a thickening agent, 1.0-5.0 parts of a surfactant, 0.1-1.0 part of a slow release agent, 0.1-1.0 part of a preservative, 5-20 parts of a propellant, 1-2 parts of melamine, 0.5-1 part of formaldehyde, 3-8 parts of a dispersing agent, 10-20 parts of an arabic gum modified melamine resin prepolymer solution and 3-5 parts of hydrochloric acid. According to the preparation method, pungent smell molecules are encapsulated and wrapped in the preparation process, volatilization of pungent gas such as capsaicin and alkaline substances is inhibited, gas dissipation after the obtained rat-repelling foam is sprayed is prolonged, gas molecules are dispersed more uniformly in subsequent preparation of the rat-repelling foam and after the rat-repelling foam is sprayed to a spraying area, and the rat-and-ant-proof effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of foam materials, in particular to a novel rat and ant-proof foam material and a preparation method thereof. Background Art

[0002] At present, the main prevention and control measures for rodent damage include chemical prevention, physical prevention, biological prevention, environmental management and other comprehensive prevention methods. Rodent damage is everywhere. Because the engine compartment of a car is infiltrated with a lot of gasoline and is relatively warm, it can easily become a breeding ground for rats, and the various wires in the compartment are the best tools for rats to grind their teeth. It is common for rats to bite the wires in the engine compartment, causing damage to the car, and even traffic accidents caused by the bitten wires. Therefore, people have thought of many ways to prevent rats from entering the car, such as putting rat poison in the car. However, the rats that have been poisoned will rot and emit an unpleasant odor, and such drugs are highly toxic and should be avoided as much as possible. At the same time, the rotten bodies are more likely to cause short circuits in the circuit. Therefore, driving away rats and preventing them from entering the car is the best way to protect the car.

[0003] There are many types of mouse repellent devices on the market, such as ultrasonic buzzers or bionic cat-like mouse repellents, which have complex structures and require changes to the car circuit to be used. At the same time, such electronic products are expensive, prone to failure at the front of the car, have a short service life, and are extremely inconvenient to use. There are also some mouse repellent materials used in other fields on the market, but these materials have poor safety performance and poor persistence of mouse repellent odor, and the preparation process of mouse repellent materials is relatively complicated.

[0004] For example, a rat repellent foam for preventing rat bites disclosed in Chinese patent publication number CN115584169A, after the comprehensive action of various components, makes rats adhere to their fur and bodies when passing by, and the rats use their mouths to lick the rat repellent aerosol adhered to their bodies. Once the rats' mouths touch the rat repellent aerosol, the action of capsaicin powder will cause the rats to feel fever, spasm, and convulsions. The strong pain will drive the rats to flee from the place with the coating of the present invention, thereby achieving the purpose of long-term rat repellent.

[0005] However, when the foam material is sprayed on the automotive material, the gas molecules of capsaicin are in a state of natural dissipation. Therefore, the concentration of capsaicin gas molecules is the highest when the foam material is sprayed. As time goes by, the concentration of capsaicin gas molecules gradually decreases, so the duration of preventing rats and ants from biting is short. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a novel rat and ant-proof foam material and a preparation method thereof, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the present invention is implemented by the following technical scheme: a new type of rat and ant proof foam material and a preparation method thereof, comprising the following raw material proportions by weight: 20-30 parts of aqueous resin emulsion, 50-70 parts of deionized water, 0.1-1.0 parts of capsaicin, 3-10 parts of alcohol solvent, 2-5 parts of alkali, 0.1-2 parts of thickener, 1.0-5.0 parts of surfactant, 0.1-1.0 parts of sustained-release agent, 0.1-1.0 parts of preservative, 5-20 parts of propellant, 1-2 parts of melamine, 0.5-1 parts of formaldehyde, 3-8 parts of dispersant, 10-20 parts of gum arabic modified melamine resin prepolymer solution, and 3-5 parts of hydrochloric acid.

[0008] A further improvement of the technical solution of the present invention is that the particle size of the capsaicin is 80-120 meshes.

[0009] A further improvement of the technical solution of the present invention is that the base comprises NaOH, H 10 At least one of Na2O8Si and NH3·H2O, the aqueous resin emulsion is an aqueous acrylic resin emulsion or an aqueous polyacrylic resin emulsion, and the alcohol solvent is any one of C2H6O, C3H8O and CH3CHOHCH2OH.

[0010] A further improvement of the technical solution of the present invention is that the surfactant is an ionic surfactant, and the surfactant contains at least one gelling ion selected from the group consisting of Ca, Cu, Fe and Zn.

[0011] A further improvement of the technical solution of the present invention is that the thickener is an aqueous thickener.

[0012] A further improvement of the technical solution of the present invention is that the preservative is one or more of C7H5NaO2, Na2HPO4, and Na2MoO4.

[0013] A further improvement of the technical solution of the present invention is that the propellant is selected as any one of CCl3F, CH2F2, and C2Cl3F4.

[0014] The present invention also provides a method for preparing a novel rat and ant-proof foam material, comprising the following specific steps:

[0015] S1: Preliminary reaction; a certain amount of the aqueous acrylic resin emulsion, deionized water, capsaicin, alcohol solvent, aqueous thickener, and surfactant containing gelling ions are mixed by weight and put into a reaction kettle, the ambient temperature is set to 75°C-85°C, the hydrolysis reaction time is controlled to 7h-8h, the speed is controlled to 70-100r / min for mechanical stirring, and a preliminary irritating rodent-proofing solution is obtained;

[0016] S2: Filtration; After the hydrolyzate obtained in S1 is cooled to 40°C, impurities are filtered out through a 100-mesh filter to obtain a pure hydrolyzate solution, and NaOH is added to adjust the pH to a weak alkaline state;

[0017] S3: preparing a prepolymer solution; adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, stirring mechanically at 40-50 r / min, adding NaOH to adjust the stirred solution to weak alkalinity, heating to 60° C. until the stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, adding gum arabic modified melamine resin prepolymer solution to obtain a prepolymer aqueous solution;

[0018] S4: Microcapsule coating: add a certain amount of gum arabic modified melamine resin prepolymer solution and deionized water into a 250ml beaker, start high-speed shear emulsification, drop the hydrolyzate obtained in S2 into the beaker, emulsify and disperse for 30 minutes, add dispersant, and coordinate mechanical stirring to evenly disperse the hydrolyzate in the solution. Transfer the obtained dispersed solution into a 500ml three-necked flask, add gum arabic modified melamine resin prepolymer aqueous solution, react at room temperature for 10-20 minutes, add hydrochloric acid to adjust the pH value, heat to 60℃ and react for 4 hours. The prepolymer has an initial irritating rodent-proof property. The water molecules in the solution are polymerized to form a film on the surface, and the solution is stirred and cooled to room temperature to obtain a stimulating encapsulated particle solution with good fluidity, wherein the particle size of the encapsulated particles is controlled to be 1-1000 μm; the stimulating odor molecules are encapsulated to effectively inhibit the volatilization of irritating gases such as capsaicin and alkaline substances, and to increase the gas dissipation time after the obtained rat repellent foam is sprayed, and the microencapsulation can change the physical form of the odor molecules of capsaicin, alcohols and alkaline substances from liquid to quasi-solid state, so that the gas molecules are more evenly dispersed in the subsequent preparation of the rat repellent foam and after the rat repellent foam is sprayed to the spraying area;

[0019] S5: Add C2H6O, NaOH, sodium carboxymethyl cellulose, surfactant, sustained-release agent, C7H5NaO2, and C2Cl3F4 to the obtained granular solution, mix them, stir rapidly, and solidify for 0.2 to 1 hour at room temperature to obtain a rat repellent foam for preventing rat bites.

[0020] A further improvement of the technical solution of the present invention is that the preparation process of the melamine resin prepolymer aqueous solution modified by gum arabic in S3 comprises the following specific steps: adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, mechanically stirring at 40-50 r / min, adding NaOH to adjust the obtained stirred solution to weak alkalinity, heating to 60° C. until the obtained stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, and adding the melamine resin prepolymer solution modified by gum arabic to obtain a prepolymer aqueous solution.

[0021] Compared with the prior art, the invention has the following beneficial effects: by encapsulating the irritating odor molecules during the preparation process, the volatilization of irritating gases such as capsaicin and alkaline substances can be effectively suppressed, and the dissipation time of the gas after the obtained rat repellent foam is sprayed can be prolonged; and the microencapsulation can change the physical form of the odor molecules of capsaicin, alcohols and alkaline substances from liquid to a quasi-solid state; in the subsequent preparation of the rat repellent foam and after the rat repellent foam is sprayed to the spraying area, the gas molecules are dispersed more evenly, thereby improving the rat and ant prevention effect.

[0022] The metal ions added to the surfactant can help gel and increase the stability of capsaicin gas molecules. The water-based resin emulsion can enhance adhesion. Alcohol substances can solubilize capsaicin. Alkaline substances can enhance the spiciness of capsaicin and make the water-based thickener easier to dissolve. Ultimately, mice will experience spiciness, pain, fever, cramps, convulsions, etc. after contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The flowchart of the preparation method of the novel rat and ant-proof foam material is shown;

[0024] Figure 2 The rat repellent foam obtained in Example 1, Example 2 and Example 3 is placed in the same space. 18 H 27 Schematic diagram of the change in NO3 gas molecule concentration;

[0025] Figure 3 This is a data table of the release performance of the rodent repellent foam obtained in Example 1 and Example 2;

[0026] Figure 4 The rat repellent foam obtained in Example 1, Example 2, and Example 3 is placed under the experimental mouse space C 18 H 27 Schematic diagram of the change in NO3 gas molecule concentration;

[0027] Figure 5 C encapsulated in a new type of rat and ant-proof foam material 18 H 27 Schematic diagram of the molecular structure of NO3 gas. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0031] Reference Figure 1 - Figure 5 The present invention provides three technical solutions. The novel rat and ant-proof foam material comprises the following raw material proportions in parts by weight: 20-30 parts of aqueous resin emulsion, 50-70 parts of deionized water, 0.1-1.0 parts of capsaicin, 3-10 parts of alcohol solvent, 2-5 parts of alkali, 0.1-2 parts of thickener, 1.0-5.0 parts of surfactant, 0.1-1.0 parts of sustained-release agent, 0.1-1.0 parts of preservative, 5-20 parts of propellant, 1-2 parts of melamine, 0.5-1 parts of formaldehyde, 3-8 parts of dispersant, 10-20 parts of gum arabic modified melamine resin prepolymer solution, and 3-5 parts of hydrochloric acid.

[0032] The particle size of the capsaicin is 80-120 meshes.

[0033] The base includes NaOH, H 10 At least one of Na2O8Si and NH3·H2O, the aqueous resin emulsion is an aqueous acrylic resin emulsion or an aqueous polyacrylic resin emulsion, and the alcohol solvent is any one of C2H6O, C3H8O and CH3CHOHCH2OH.

[0034] The surfactant is an ionic surfactant, and the surfactant contains at least one co-gelling ion of Ca, Cu, Fe, and Zn. The thickener is an aqueous thickener.

[0035] The thickener is an aqueous thickener.

[0036] The preservative is one or more of C7H5NaO2, Na2HPO4, and Na2MoO4.

[0037] The propellant is selected from any one of CCl3F, CH2F2, and C2Cl3F4.

[0038] The present invention also provides a method for preparing a novel rat and ant-proof foam material, comprising the following specific steps:

[0039] S1: Preliminary reaction; a certain amount of the aqueous acrylic resin emulsion, deionized water, capsaicin, alcohol solvent, aqueous thickener, and Ca-containing ionic surfactant are mixed by weight and put into a reaction kettle, the ambient temperature is set to 75°C-85°C, the hydrolysis reaction time is controlled to 7h-8h, the speed is controlled to 70-100r / min for mechanical stirring, and a preliminary irritating rodent-proofing solution is obtained;

[0040] S2: Filtration; After the hydrolyzate obtained in S1 is cooled to 40°C, impurities are filtered out through a 100-mesh filter to obtain a pure hydrolyzate solution, and NaOH is added to adjust the pH to a weak alkaline state;

[0041] S3: preparing a prepolymer solution; adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, stirring mechanically at 40-50 r / min, adding NaOH to adjust the stirred solution to weak alkalinity, heating to 60° C. until the stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, adding gum arabic modified melamine resin prepolymer solution to obtain a prepolymer aqueous solution;

[0042] S4: Microcapsule coating: add a certain amount of gum arabic modified melamine resin prepolymer solution and deionized water into a 250ml beaker, start high-speed shear emulsification, drop the hydrolyzate obtained in S2 into the beaker, emulsify and disperse for 30 minutes, add dispersant, and coordinate mechanical stirring to evenly disperse the hydrolyzate in the solution. Transfer the obtained dispersed solution into a 500ml three-necked flask, add gum arabic modified melamine resin prepolymer aqueous solution, react at room temperature for 10-20 minutes, add hydrochloric acid to adjust the pH value, heat to 60℃ and react for 4 hours. The prepolymer has an initial irritating rodent-proof property. The water molecules in the solution are polymerized to form a film on the surface, and the solution is stirred and cooled to room temperature to obtain a stimulating encapsulated particle solution with good fluidity, wherein the particle size of the encapsulated particles is controlled to be 1-1000 μm; the stimulating odor molecules are encapsulated to effectively inhibit the volatilization of irritating gases such as capsaicin and alkaline substances, and to increase the gas dissipation time after the obtained rat repellent foam is sprayed, and the microencapsulation can change the physical form of the odor molecules of capsaicin, alcohols and alkaline substances from liquid to quasi-solid state, so that the gas molecules are more evenly dispersed in the subsequent preparation of the rat repellent foam and after the rat repellent foam is sprayed to the spraying area;

[0043] S5: Add C2H6O, NaOH, sodium carboxymethyl cellulose, surfactant, sustained-release agent, C7H5NaO2, and C2Cl3F4 to the obtained granular solution, mix them, stir rapidly, and solidify for 0.2 to 1 hour at room temperature to obtain a rat repellent foam for preventing rat bites.

[0044] The preparation process of the melamine resin prepolymer aqueous solution modified by gum arabic in S4 comprises the following specific steps: adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, mechanically stirring at 40-50 r / min, adding NaOH to adjust the obtained stirred solution to weak alkalinity, heating to 60° C. until the obtained stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, and adding the melamine resin prepolymer solution modified by gum arabic to obtain a prepolymer aqueous solution.

[0045] Embodiment 1:

[0046] The novel rat-proof and ant-proof foam material comprises the following raw materials in parts by weight: 20 parts of water-based acrylic resin emulsion, 50 parts of deionized water, 0.1 parts of capsaicin, 3 parts of C2H6O, 2 parts of NaOH, 0.1 parts of thickener, 3 parts of surfactant, 0.5 parts of sustained-release agent, 0.5 parts of Na2MoO4, 15 parts of CCl3F, 1 part of melamine, 0.5 parts of formaldehyde, 5 parts of dispersant, 10 parts of gum arabic modified melamine resin prepolymer solution, and 3 parts of hydrochloric acid.

[0047] The surfactant contains Ca ions, and the thickener is a water-based thickener;

[0048] This embodiment also provides a method for preparing a novel rat-proof and ant-proof foam material, S1: preliminary reaction; a certain amount of the aqueous acrylic resin emulsion, deionized water, capsaicin, C2H6O, an aqueous thickener, and a surfactant containing a gelling ion are mixed according to weight components and put into a reaction kettle, the ambient temperature is set to 75° C., the hydrolysis reaction time is controlled to 7 hours, and the rotation speed is controlled at 70 r / min for mechanical stirring to obtain a preliminary irritating rat-proof solution;

[0049] S2: Filtration; After the hydrolyzate obtained in S1 is cooled to 40°C, impurities are filtered out through a 100-mesh filter to obtain a pure hydrolyzate solution, and NaOH is added to adjust the pH to a weak alkaline state;

[0050] S3: preparing a prepolymer solution; adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, stirring mechanically at 40 / min, adding NaOH to adjust the stirred solution to weak alkalinity, heating to 60° C. until the stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, adding gum arabic modified melamine resin prepolymer solution to obtain a prepolymer aqueous solution;

[0051] S4: microcapsule coating; add a certain amount of arabic gum modified melamine resin prepolymer solution and deionized water into a 250ml beaker, start high-speed shear emulsification, drop the hydrolyzate obtained in S2 into the beaker, emulsify and disperse for 30 minutes, add a dispersant, and coordinate mechanical stirring to evenly disperse the hydrolyzate in the solution, transfer the obtained dispersed solution into a 500ml three-necked flask, add arabic gum modified melamine resin prepolymer aqueous solution, react at room temperature for 10 minutes, add hydrochloric acid to adjust the pH value, heat to 60°C and react for 4 hours, the prepolymer polymerizes into a film on the surface of the water molecules of the preliminary irritating rodent-proofing solution, stir and cool to room temperature, and obtain a irritating encapsulated particle solution with good fluidity, wherein the particle size of the encapsulated particles is controlled at 1-1000μm;

[0052] S5: Add C2H6O, NaOH, surfactant, sustained-release agent, C2H6O and C2Cl3F4 into the obtained particle solution, mix them, stir rapidly, and solidify them at room temperature for 0.5 h to obtain rat repellent foam for preventing rat bites.

[0053] The preparation process of the melamine resin prepolymer aqueous solution modified by gum arabic in S4 comprises the following specific steps: adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, mechanically stirring at 40-50 r / min, adding NaOH to adjust the obtained stirred solution to weak alkalinity, heating to 60° C. until the obtained stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, and adding the melamine resin prepolymer solution modified by gum arabic to obtain the prepolymer aqueous solution A.

[0054] Embodiment 2:

[0055] The novel rat-proof and ant-proof foam material comprises the following raw materials in parts by weight: 25 parts of water-based acrylic resin emulsion, 60 parts of deionized water, 0.5 parts of capsaicin, 5 parts of C2H6O, 3 parts of NaOH, 1 part of thickener, 3 parts of surfactant, 0.5 parts of sustained-release agent, 0.5 parts of Na2MoO4, 15 parts of CCl3F, 1.5 parts of melamine, 0.8 parts of formaldehyde, 5 parts of dispersant, 15 parts of gum arabic modified melamine resin prepolymer solution, and 4 parts of hydrochloric acid.

[0056] The surfactant contains Ca ions, and the thickener is a water-based thickener;

[0057] This embodiment also provides a method for preparing a novel rat-proof and ant-proof foam material, S1: preliminary reaction; a certain amount of the aqueous acrylic resin emulsion, deionized water, capsaicin, C2H6O, an aqueous thickener, and a surfactant containing a gelling ion are mixed according to weight components and put into a reaction kettle, the ambient temperature is set to 75° C., the hydrolysis reaction time is controlled to 7 hours, and the rotation speed is controlled at 70 r / min for mechanical stirring to obtain a preliminary irritating rat-proof solution;

[0058] S2: Filtration; After the hydrolyzate obtained in S1 is cooled to 40°C, impurities are filtered out through a 100-mesh filter to obtain a pure hydrolyzate solution, and NaOH is added to adjust the pH to a weak alkaline state;

[0059] S3: preparing a prepolymer solution; adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, stirring mechanically at 40 / min, adding NaOH to adjust the stirred solution to weak alkalinity, heating to 60° C. until the stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, adding gum arabic modified melamine resin prepolymer solution to obtain a prepolymer aqueous solution;

[0060] S4: microcapsule coating; add a certain amount of arabic gum modified melamine resin prepolymer solution and deionized water into a 250ml beaker, start high-speed shear emulsification, drop the hydrolyzate obtained in S2 into the beaker, emulsify and disperse for 30 minutes, add a dispersant, and coordinate mechanical stirring to evenly disperse the hydrolyzate in the solution, transfer the obtained dispersed solution into a 500ml three-necked flask, add arabic gum modified melamine resin prepolymer aqueous solution, react at room temperature for 10 minutes, add hydrochloric acid to adjust the pH value, heat to 60°C and react for 4 hours, the prepolymer polymerizes into a film on the surface of the water molecules of the preliminary irritating rodent-proofing solution, stir and cool to room temperature, and obtain a irritating encapsulated particle solution with good fluidity, wherein the particle size of the encapsulated particles is controlled at 1-1000μm;

[0061] S5: Add C2H6O, NaOH, surfactant, sustained-release agent, C2H6O and C2Cl3F4 into the obtained particle solution, mix them, stir rapidly, and solidify them at room temperature for 0.5 h to obtain rat repellent foam for preventing rat bites.

[0062] The preparation process of the melamine resin prepolymer aqueous solution modified with gum arabic in S4 comprises the following specific steps: adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, mechanically stirring at 40-50 r / min, adding NaOH to adjust the obtained stirred solution to weak alkalinity, heating to 60° C. until the obtained stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, and adding the melamine resin prepolymer solution modified with gum arabic to obtain the prepolymer aqueous solution B.

[0063] Embodiment three:

[0064] The present invention also provides a novel rat-ant-proof foam material without microcapsule encapsulation, comprising the following raw material proportions by weight: 25 parts of aqueous acrylic resin emulsion, 60 parts of deionized water, 0.5 parts of capsaicin, 5 parts of C2H6O, 3 parts of NaOH, 1 part of thickener, 3 parts of surfactant, 0.5 parts of sustained-release agent, 0.5 parts of Na2MoO4, and 15 parts of CCl3F;

[0065] The thickener is an aqueous thickener;

[0066] The preparation method of the novel rat-ant-proof foam material without microcapsule encapsulation includes the following specific steps:

[0067] S1: Weigh the following raw materials in proportion by weight: 25 parts of aqueous acrylic resin emulsion, 60 parts of deionized water, 0.5 parts of capsaicin, 5 parts of C2H6O, 1 part of NaOH, 1 part of thickener, 3 parts of surfactant, 0.5 parts of sustained-release agent, 0.5 parts of Na2MoO4, and 15 parts of CCl3F.

[0068] S2: Mix the aqueous acrylic resin emulsion, deionized water, capsaicin, C2H6O, NaOH, thickener, surfactant, sustained-release agent, Na2MoO4 and CCl3F, stir rapidly, and cure at room temperature for 0.5 h to obtain rat repellent foam C for preventing rat bites.

[0069] The rat repellent foam A, rat repellent foam B and rat repellent foam C obtained in Example 1, Example 2 and Example 3 were sprayed onto the same surface of wires and cables respectively. After being allowed to stand until a stable adhesion state, the three groups of wires and cables that had been sprayed were placed in an open container, a measuring sensor was set inside, and the capsaicin in the container was monitored in real time by a gas detector. 18 H 27 The concentration of NO3 gas molecules, such as Figure 2 As shown;

[0070] As attached Figure 2 As shown in the figure, the initial concentration of capsaicin gas molecules is C>B>A. Therefore, after the rat repellent foam C is sprayed on the surface of the wire and cable, C 18 H 27 NO3 gas molecules are not encapsulated and therefore quickly escape. The rodent repellent effect before 23 days is much better than that of rodent repellent foam A and rodent repellent foam B. However, after 23 days, the concentration of gas molecules in the area sprayed by rodent repellent foam C drops rapidly. The reason is that the gas molecules of rodent repellent foam C escape too quickly. Therefore, it can be seen that the rodent repellent effect of rodent repellent foam C is expected to last about 45 days. Most of the gas molecules of rodent repellent foam A and rodent repellent foam B are encapsulated and released slowly, so the rodent repellent effect is more lasting.

[0071] The rat repellent foam A and rat repellent foam B obtained in Example 1 and Example 2 were weighed with the same mass, placed in a conical flask, and placed in an oven at a constant temperature of 50° C. for 30 minutes. The weight loss of the foam A and the foam B was monitored to determine the release performance of the rat repellent foam A and the rat repellent foam B, and the mass loss rate was expressed;

[0072] Quality loss rate Where M is the product mass (g), M n is the mass of the product on day n, ω% is the mass content of capsaicin, and the experimental results are shown in the attached Figure 3 As shown, it can be seen that the release performance of rat repellent foam A and rat repellent foam B under different raw material ratios is similar, and the stability of their rat repellent effects is similar;

[0073] The rat repellent foam A, rat repellent foam B and rat repellent foam C obtained in Example 1, Example 2 and Example 3 were sprayed onto the same surface of electric wires and cables respectively. After being allowed to stand until a stable adhesion state, the three groups of sprayed electric wires and cables were placed in an open container, a measuring sensor was set inside, and the capsaicin-C in the closed container was monitored in real time by a gas detector. 18 H 27 The concentration of NO3 gas molecules, and finally placed the experimental mouse in the open container;

[0074] C 18 H 27 The concentration of NO3 gas molecules is as follows Figure 4 As shown in the experimental data, after the rat repellent foam C is sprayed on the wires and cables, 18 H 27 The NO3 gas molecules had a strong pungent smell at the initial concentration. During this process, the experimental mice did not move close to the wires and cables. However, after 50 days, the pungent smell was inhaled by the experimental mice and evaporated naturally, and the experimental mice began to move close to the wires and cables.

[0075] The rat repellent foam A and rat repellent foam B are sprayed behind the wires and cables because C 18 H 27 The initial concentration of NO3 gas molecules was not high. The experimental mice gradually approached the wires and cables between 0 and 10 days. The experimental mice of the second embodiment group contacted the surface of the wires and cables at the 10th day. The experimental mice of the first embodiment group contacted the surface of the wires and cables at 2 days. At this time, the C encapsulated in the foam 18 H 27 NO3 gas molecules are released by touching or biting, and the effect of capsaicin causes mice to feel fever, cramps, and twitching pain, and they will not approach wires and cables for a short time. After subsequent attempts to touch, the mice will release the encapsulated C 18 H 27 The NO3 gas molecules were stimulated by capsaicin again, so that the mice would have inertial memory after being stimulated multiple times, and according to the attached Figure 4 It can be seen that the gas molecules are released more slowly and the rat repelling effect is more lasting.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. New type of rat and ant-proof foam material, characterized by: The invention comprises the following raw materials in parts by weight: 20-30 parts of water-based resin emulsion, 50-70 parts of deionized water, 0.1-1.0 parts of capsaicin, 3-10 parts of alcohol solvent, 2-5 parts of alkali, 0.1-2 parts of thickener, 1.0-5.0 parts of surfactant, 0.1-1.0 parts of sustained-release agent, 0.1-1.0 parts of preservative, 5-20 parts of propellant, 1-2 parts of melamine, 0.5-1 parts of formaldehyde, 3-8 parts of dispersant, 10-20 parts of gum arabic modified melamine resin prepolymer solution and 3-5 parts of hydrochloric acid.

2. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The particle size of the capsaicin is 80-120 meshes.

3. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The base includes NaOH, H 10 At least one of Na2O8Si and NH3·H2O, the aqueous resin emulsion is an aqueous acrylic resin emulsion or an aqueous polyacrylic resin emulsion, and the alcohol solvent is any one of C2H6O, C3H8O and CH3CHOHCH2OH.

4. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The surfactant is an ionic surfactant, and the surfactant contains at least one gelling ion selected from the group consisting of Ca, Cu, Fe and Zn.

5. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The thickener is an aqueous thickener.

6. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The preservative is one or more of C7H5NaO2, Na2HPO4, and Na2MoO4.

7. The novel rat and ant-proof foam material according to claim 1 is characterized in that: The propellant is selected from any one of CCl3F, CH2F2, and C2Cl3F4.

8. A method for preparing a novel anti-rat and ant foam material, applied to the novel anti-rat and ant foam material as claimed in any one of claims 1 to 5, characterized in that: The specific steps include: S1: Preliminary reaction; a certain amount of the aqueous acrylic resin emulsion, deionized water, capsaicin, alcohol solvent, aqueous thickener, and surfactant containing gelling ions are mixed by weight and put into a reaction kettle, the ambient temperature is set to 75°C-85°C, the hydrolysis reaction time is controlled to 7h-8h, the speed is controlled to 70-100r / min for mechanical stirring, and a preliminary irritating rodent-proofing solution is obtained; S2: Filtration; After the hydrolyzate obtained in S1 is cooled to 40°C, impurities are filtered out through a 100-mesh filter to obtain a pure hydrolyzate solution, and NaOH is added to adjust the pH to a weak alkaline state; S3: preparing a prepolymer solution; adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, stirring mechanically at 40-50 r / min, adding NaOH to adjust the stirred solution to weak alkalinity, heating to 60° C. until the stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, adding gum arabic modified melamine resin prepolymer solution to obtain a prepolymer aqueous solution; S4: microcapsule coating; add a certain amount of arabic gum modified melamine resin prepolymer solution and deionized water into a 250ml beaker, start high-speed shear emulsification, drop the hydrolyzate obtained in S2 into the beaker, emulsify and disperse for 30 minutes, add a dispersant, and coordinate mechanical stirring to evenly disperse the hydrolyzate in the solution, transfer the obtained dispersed solution into a 500ml three-necked flask, add arabic gum modified melamine resin prepolymer aqueous solution, react at room temperature for 10-20 minutes, add hydrochloric acid to adjust the pH value, heat to 60°C and react for 4 hours, the prepolymer polymerizes into a film on the surface of the water molecules of the preliminary irritating rodent-proofing solution, stir and cool to room temperature, and obtain a irritating encapsulated particle solution with good fluidity, wherein the particle size of the encapsulated particles is controlled at 1-1000μm; S5: Add C2H6O, NaOH, sodium carboxymethyl cellulose, surfactant, sustained-release agent, C7H5NaO2, and C2Cl3F4 to the obtained granular solution, mix them, stir rapidly, and solidify for 0.2 to 1 hour at room temperature to obtain a rat repellent foam for preventing rat bites.

9. The method for preparing the novel rat and ant-proof foam material according to claim 8, characterized in that: The preparation process of the melamine resin prepolymer aqueous solution modified by gum arabic in S3 comprises the following specific steps: adding a certain amount of melamine, formaldehyde, dispersant and deionized water in a 250 ml three-necked flask in sequence, mechanically stirring at 40-50 r / min, adding NaOH to adjust the obtained stirred solution to weak alkalinity, heating to 60° C. until the obtained stirred solution becomes clear, keeping the temperature for reaction for 20 minutes, and adding the melamine resin prepolymer solution modified by gum arabic to obtain a prepolymer aqueous solution.

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