Rat-proof material for plugging power grid and preparation method of rat-proof material

Abstract

The invention relates to the technical field of power grid rat prevention, in particular to a rat-proof material for plugging a power grid and a preparation method of the rat-proof material, and the rat-proof material is formed by mixing fireproof mud and a rat-proof agent according to the mass ratio of 100: (0.5-2.5); the fireproof mud is prepared from the following raw materials in parts by weight: 30 to 50 parts of sodium silicate, 10 to 30 parts of a fireproof material, 12 to 24 parts of lightweight aggregate, 10 to 20 parts of aryl resin, 5 to 10 parts of methyl silicone oil, 2 to 6 parts of an environment-friendly flame retardant, 4 to 8 parts of tributyl citrate, 1 to 5 parts of sulphoaluminate, 2 to 4 parts of calcium stearate, 1 to 3 parts of hexadecyl trimethyl ammonium chloride, 1 to 3 parts of other auxiliaries and 5 to 15 parts of deionized water. According to the rat-proof material disclosed by the invention, the fireproof mud for fire protection is mixed with the rat-proof agent, so that the rat-proof material not only can be used for physical blocking, but also can be used for expelling odor, a certain degree of error tolerance rate can be allowed even if a gap exists, and the rat-proof material also has a better rat-proof effect on the basis of better fireproof performance.

Description

Technical Field

[0001] The invention relates to the technical field of rodent-proofing of power grids, and in particular to a rodent-proofing material for power grid blocking and a preparation method thereof. Background Art

[0002] With the acceleration of the construction of large power grids, the operation and maintenance volume of secondary equipment in substations has increased dramatically. In the regular calibration and technical transformation of relay protection, in order to ensure the safety and reliability of maintenance work, secondary cable insulation isolation and terminal insulation isolation are usually required when implementing secondary safety measures. Therefore, safety isolation devices are needed to prevent abnormal equipment operation and switch tripping caused by accidental touch, short circuit, or disconnection of wiring during maintenance.

[0003] Even with a safety isolation device, there will still be some mice or other small animals that will enter through the holes and cause damage to the wires and cables. The existing technology generally uses cement for sealing, which is labor-intensive.

[0004] The Chinese invention patent with application number 201910267111.1 discloses a fireproof plugging material for electrical instrument panels and a fire-retardant bag prepared therefrom. The fireproof plugging material is a base material formed by uniformly mixing magnesium aluminum silicate and fly ash, and then adding an admixture and a binder to form a paste. The admixture is sodium hypochlorite powder; the binder is a mixture of water and polyacrylamide. The patent adds sodium hypochlorite powder, the pungent smell of which can cause discomfort to mice, thus playing a good role in preventing rodents; the polyacrylamide added therein has water absorption properties, which can absorb moisture in the environment to enhance the fireproof performance of the plugging material, but the patent also has the problem of poor fireproof performance and rodent prevention effect. Summary of the invention

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a rodent-proof material for electric network blocking and a preparation method thereof.

[0006] The purpose of the present invention is achieved through the following technical scheme: a rodent-proof material for power grid blocking, the rodent-proof material is composed of a mixture of fireproof mud and rodent-proof agent in a mass ratio of 100:0.5-2.5; the fireproof mud comprises the following raw materials in parts by weight: 30-50 parts of sodium silicate, 10-30 parts of refractory material, 12-24 parts of lightweight aggregate, 10-20 parts of aromatic resin, 5-10 parts of methyl silicone oil, 2-6 parts of environmentally friendly flame retardant, 4-8 parts of tributyl citrate, 1-5 parts of sulphoaluminate, 2-4 parts of calcium stearate, 1-3 parts of hexadecyltrimethylammonium chloride, 1-3 parts of other additives and 5-15 parts of deionized water.

[0007] The fireproof mud of the present invention can also provide structural strength and fire resistance by adopting sodium silicate as a binder; by adopting refractory materials, the fire resistance, insulation and cost can be improved; by adopting lightweight aggregates, the material density can be reduced and the thermal insulation performance can be improved; by adopting aromatic resins, it has excellent high temperature resistance and self-lubricating properties, which effectively ensures the quality and high temperature resistance of the fireproof mud; by adopting methyl silicone oil, the insulation, heat resistance and weather resistance of the fireproof mud filler as a whole can be improved, and at the same time, its anti-sticking and lubricating properties can reliably reduce the stickiness of the fireproof mud filler; by adopting environmentally friendly flame retardants, it is halogen-free, low-smoke, low-toxic and has good flame retardant effect; by adopting tributyl citrate as a plasticizer, the plasticity and construction performance of the rodent-proof material can be improved; by adopting sulphoaluminate as an expansion agent, the sealing effect can be improved; by adopting calcium stearate as a waterproofing agent, the water resistance of the rodent-proof material can be improved; by adopting hexadecyltrimethylammonium chloride as an antistatic agent, the antistatic performance of the rodent-proof material can be improved.

[0008] Preferably, the refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 2-4:1.5-2.5:1. Quartz powder can provide the refractory performance of the book-turning material, talcum powder can increase the refractory performance of the material and reduce the cost, and mica powder can improve the refractory performance and insulation performance of the material. The present invention uses quartz powder, talcum powder and mica powder as refractory materials for compound use, and strictly controls the weight ratio to be 2-4:1.5-2.5:1, so as to improve the refractory performance and insulation performance of the rat-proof material.

[0009] Preferably, the lightweight aggregate is a mixture of silica aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 1.5-2.5:0.8-1.2:1. The present invention uses silica aerogel, expanded perlite powder and expanded vermiculite powder as lightweight aggregates and controls the weight ratio to 1.5-2.5:0.8-1.2:1, thereby reducing the density of the rodent-proof material and improving the thermal insulation performance of the rodent-proof material.

[0010] Preferably, the environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.4-0.8:0.5-1.5. The present invention uses brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide as environmentally friendly flame retardants and controls their weight ratio to be 1:0.4-0.8:0.5-1.5, which can achieve a good flame retardant effect and improve the processing performance and mechanical properties of the material.

[0011] Preferably, the other auxiliary agents are tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester, 2,4,6-tris(2'n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 1.5-2.5:1:0.5-1.5. The present invention uses tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester as an antioxidant to delay or inhibit the oxidation process of the material, thereby preventing the aging of the material and extending its service life; uses 2,4,6-tris(2'n-butoxyphenyl)-1,3,5-triazine as an anti-ultraviolet agent, which has a good anti-ultraviolet effect; uses benzisothiazoline-3-one as a preservative to prevent the material from deteriorating in a humid environment.

[0012] Preferably, the rodent repellent is at least one of capsaicin, dihydrocapsaicin, homocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, N-octanoylvanillamide, N-nonanoylvanillamide and N-decanoylvanillamide. The present invention uses capsaicinoids as rodent repellents to drive away mice by smell, and has a good rodent repellent effect.

[0013] Another preferred embodiment is that the rodent repellent has the structural formula:

[0014]

[0015] The invention adopts the rodent-proofing agent of the structural formula, which has both vanillyl and piperonyl, and can improve the rodent-proofing effect of the rodent-proofing material.

[0016] Preferably, the preparation method of the rodent repellent is: using vanillin amine and piperic acid as raw materials, using toluene as solvent, carrying out a dehydration reaction under the catalysis of boric acid, cooling to room temperature after the reaction, washing with water, drying with anhydrous sodium sulfate, using a rotary evaporator to reduce pressure and recover toluene, stirring and crystallizing the remaining liquid to obtain N-piperonyl vanillamide.

[0017] Preferably, the molar ratio of the vanillin amine, piperic acid and boric acid is 1:1:0.1-0.2, the amount of toluene used is 6-10 times the volume of the vanillin amine, the temperature of the dehydration reaction is 120-130°C, and the reaction time is 8-10 hours.

[0018] The preparation method of the rodent repellent of the invention has simple operation process and mild reaction conditions. The obtained rodent repellent product has good purity and stable quality and is suitable for industrial production.

[0019] Another object of the present invention is achieved by the following technical solution: A method for preparing a rodent-proof material for electric grid blocking, comprising the following steps:

[0020] (1) Weigh the above raw materials according to weight ratio;

[0021] (2) Grinding the refractory material and lightweight aggregate and passing through a 100-200 mesh sieve to obtain a mixed powder for later use;

[0022] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a mixer and stirred at 80-100° C. for 1-5 minutes, and then sodium silicate and mixed powder are added. After stirring for 5-15 minutes, the temperature is lowered to 30-50° C., and environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0023] The preparation method of the invention has simple steps, convenient operation and control, stable quality, high production efficiency, low production cost, and can be applied to large-scale industrial production.

[0024] The beneficial effect of the present invention is that the rodent-proof material of the present invention can achieve both physical blocking and odor repelling by mixing fire-proof mud used for fire fighting. Even if there is a small gap, odor repelling can allow a certain degree of error tolerance. On the basis of having good fireproofing performance, it also has better rodent-proofing effect. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments, and the contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] Example 1

[0027] A rodent-proof material for power grid blocking, the rodent-proof material being composed of a mixture of fireproof mud and a rodent-proof agent in a mass ratio of 100:0.5; the fireproof mud comprising the following raw materials in parts by weight: 30 parts of sodium silicate, 10 parts of refractory material, 12 parts of lightweight aggregate, 10 parts of aromatic resin, 5 parts of methyl silicone oil, 2 parts of environmentally friendly flame retardant, 4 parts of tributyl citrate, 1 part of sulphoaluminate, 2 parts of calcium stearate, 1 part of hexadecyltrimethylammonium chloride, 1 part of other additives and 5 parts of deionized water.

[0028] The refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 2:1.5:1.

[0029] The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 1.5:0.8:1.

[0030] The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.4:0.5.

[0031] The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 1.5:1:0.5.

[0032] The rodent repellent is capsaicin.

[0033] A method for preparing a rodent-proof material for electric grid blocking comprises the following steps:

[0034] (1) Weigh the above raw materials according to weight ratio;

[0035] (2) Grinding the refractory material and lightweight aggregate and passing through a 100-mesh sieve to obtain a mixed powder for later use;

[0036] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a mixer and stirred at 80° C. for 5 min. Then, sodium silicate and mixed powder are added and stirred for 5 min. The temperature is then lowered to 30° C. Environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0037] Example 2

[0038] A rodent-proof material for power grid blocking, the rodent-proof material being composed of fire-proof mud and rodent-proof agent mixed in a mass ratio of 100:1; the fire-proof mud comprising the following raw materials in parts by weight: 35 parts of sodium silicate, 15 parts of refractory material, 15 parts of lightweight aggregate, 12 parts of aromatic resin, 6 parts of methyl silicone oil, 3 parts of environmentally friendly flame retardant, 5 parts of tributyl citrate, 2 parts of sulphoaluminate, 2.5 parts of calcium stearate, 1.5 parts of hexadecyltrimethylammonium chloride, 1.5 parts of other additives and 8 parts of deionized water.

[0039] The refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 2.5:1.8:1.

[0040] The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 1.8:0.9:1.

[0041] The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.5:0.8.

[0042] The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 1.8:1:0.8.

[0043] The rodent repellent is dihydrocapsaicin.

[0044] A method for preparing a rodent-proof material for electric grid blocking comprises the following steps:

[0045] (1) Weigh the above raw materials according to weight ratio;

[0046] (2) Grinding the refractory material and the lightweight aggregate and passing through a 120-mesh sieve to obtain a mixed powder for later use;

[0047] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a blender and stirred at 85°C for 4 minutes. Then, sodium silicate and mixed powder are added and stirred for 8 minutes. The temperature is then lowered to 35°C. Environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0048] Example 3

[0049] A rodent-proof material for power grid blocking, the rodent-proof material being composed of a mixture of fireproof mud and a rodent-proof agent at a mass ratio of 100:1.5; the fireproof mud comprising the following raw materials in parts by weight: 40 parts of sodium silicate, 20 parts of refractory material, 18 parts of lightweight aggregate, 15 parts of aromatic resin, 8 parts of methyl silicone oil, 4 parts of environmentally friendly flame retardant, 6 parts of tributyl citrate, 3 parts of sulphoaluminate, 3 parts of calcium stearate, 2 parts of hexadecyltrimethylammonium chloride, 2 parts of other additives and 10 parts of deionized water.

[0050] The refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 3:2:1.

[0051] The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 2:1:1.

[0052] The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.6:1.

[0053] The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 2:1:1.

[0054] The rodent repellent is high in capsaicin.

[0055] A method for preparing a rodent-proof material for electric grid blocking comprises the following steps:

[0056] (1) Weigh the above raw materials according to weight ratio;

[0057] (2) Grinding the refractory material and the lightweight aggregate and passing through a 150-mesh sieve to obtain a mixed powder for later use;

[0058] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a mixer and stirred at 90° C. for 3 min. Then, sodium silicate and mixed powder are added and stirred for 10 min. The temperature is then lowered to 30-50° C., and environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0059] Example 4

[0060] A rodent-proof material for power grid blocking, the rodent-proof material being composed of fire-proof mud and rodent-proof agent mixed in a mass ratio of 100:2; the fire-proof mud comprising the following raw materials in parts by weight: 45 parts of sodium silicate, 25 parts of refractory material, 21 parts of lightweight aggregate, 18 parts of aromatic resin, 9 parts of methyl silicone oil, 5 parts of environmentally friendly flame retardant, 7 parts of tributyl citrate, 4 parts of sulphoaluminate, 3.5 parts of calcium stearate, 2.5 parts of hexadecyltrimethylammonium chloride, 2.5 parts of other additives and 12 parts of deionized water.

[0061] The refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 3.5:2.2:1.

[0062] The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 2.2:1.1:1.

[0063] The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.7:1.2.

[0064] The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 2.2:1:1.2.

[0065] The rodent repellent is nordihydrocapsaicin.

[0066] A method for preparing a rodent-proof material for electric grid blocking comprises the following steps:

[0067] (1) Weigh the above raw materials according to weight ratio;

[0068] (2) Grinding the refractory material and the lightweight aggregate and passing through a 180-mesh sieve to obtain a mixed powder for later use;

[0069] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a blender and stirred at 95°C for 4 minutes. Then, sodium silicate and mixed powder are added and stirred for 12 minutes. The temperature is then lowered to 45°C. Environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0070] Example 5

[0071] A rodent-proof material for power grid blocking, the rodent-proof material being composed of a mixture of fireproof mud and a rodent-proof agent at a mass ratio of 100:2.5; the fireproof mud comprising the following raw materials in parts by weight: 50 parts of sodium silicate, 30 parts of refractory material, 24 parts of lightweight aggregate, 20 parts of aromatic resin, 10 parts of methyl silicone oil, 6 parts of environmentally friendly flame retardant, 8 parts of tributyl citrate, 5 parts of sulphoaluminate, 4 parts of calcium stearate, 3 parts of hexadecyltrimethylammonium chloride, 3 parts of other additives and 15 parts of deionized water.

[0072] The refractory material is a mixture of quartz powder, talcum powder and mica powder in a weight ratio of 4:2.5:1.

[0073] The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 2.5:1.2:1.

[0074] The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.8:1.5.

[0075] The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 2.5:1:1.5.

[0076] The structural formula of the rodent repellent is:

[0077]

[0078] The preparation method of the rodent repellent comprises the following steps: using vanillin amine and piperic acid as raw materials, using toluene as solvent, carrying out a dehydration reaction under the catalysis of boric acid, cooling to room temperature after the reaction, washing with water, drying with anhydrous sodium sulfate, using a rotary evaporator to reduce pressure and recover toluene, stirring and crystallizing the remaining liquid, and obtaining N-piperonyl vanillamide.

[0079] The molar ratio of the vanillin amine, piperic acid and boric acid is 1:1:0.1, the amount of toluene used is 8 times the volume of the vanillin amine, the temperature of the dehydration reaction is 125° C., and the reaction time is 9 hours.

[0080] A method for preparing a rodent-proof material for electric grid blocking comprises the following steps:

[0081] (1) Weigh the above raw materials according to weight ratio;

[0082] (2) Grinding the refractory material and the lightweight aggregate and passing through a 200-mesh sieve to obtain a mixed powder for later use;

[0083] (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a blender and stirred at 100° C. for 5 min. Then, sodium silicate and mixed powder are added and stirred for 15 min. The temperature is then lowered to 50° C., and environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

[0084] 1. Rodent-proof test:

[0085] The rat-proof materials prepared in Examples 1-5 were made into 3cm*3cm*10cm sizes and placed in cages containing 5 male rats (48 weeks old). The control group used commercially available national standard fireproof mud of the same size. Under normal feeding conditions, the rat-proof materials and fireproof mud were collected after 24 hours, and the degree of biting was observed. The results are as follows:

[0086] Rodent-proof test Gnawing surface area (%) Example 1 1.53 Example 2 1.75 Example 3 3.62 Example 4 4.87 Example 5 0.28 Comparative Example 1 25.81

[0087] It can be seen from the above table that the rodent-proof materials prepared in Examples 1-5 have significantly improved rodent-proof effects compared with the fire-proof mud in Comparative Example 1, and the rodent-proof agent in Example 5 having vanilla and pepper groups has better rodent-proof effects than the capsaicin in Example 1.

[0088] 2. Fire test:

[0089] The fireproof performance of the rodent-proof materials prepared in Examples 1-5 was tested with reference to the national standard GB23864-2009 "Fireproof Sealing Materials". The control group used commercially available national standard fireproof mud. The results are as follows:

[0090] Fire test Flame retardant grade Fire resistance limit time (min) Example 1 V0 254 Example 2 V0 268 Example 3 V0 283 Example 4 V0 275 Example 5 V0 267 Control group V0 232

[0091] It can be seen from the above table that the fire resistance limit performance of the rodent-proof materials prepared in Examples 1-5 exceeds the requirement of first-class fireproof blocking materials of 3 hours, and has better fireproof effect than the national standard fireproof mud on the market.

[0092] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A rodent-proof material for electric grid blocking, characterized in that: The rodent-proof material is composed of fire-proof mud and rodent-proof agent mixed in a mass ratio of 100:0.5-2.5; the fire-proof mud comprises the following raw materials in parts by weight: 30-50 parts of sodium silicate, 10-30 parts of refractory material, 12-24 parts of lightweight aggregate, 10-20 parts of aromatic resin, 5-10 parts of methyl silicone oil, 2-6 parts of environmentally friendly flame retardant, 4-8 parts of tributyl citrate, 1-5 parts of sulphoaluminate, 2-4 parts of calcium stearate, 1-3 parts of hexadecyltrimethylammonium chloride, 1-3 parts of other additives and 5-15 parts of deionized water.

2. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The refractory material is composed of quartz powder, talcum powder and mica powder in a weight ratio of 2-4: A mixture of 1.5-2.5:

1.

3. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The lightweight aggregate is a mixture of silicon dioxide aerogel, expanded perlite powder and expanded vermiculite powder in a weight ratio of 1.5-2.5:0.8-1.2:

1.

4. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The environmentally friendly flame retardant is a mixture of brominated epoxy resin, resorcinol bis(diphenyl phosphate) and aluminum hydroxide in a mass ratio of 1:0.4-0.8:0.5-1.

5.

5. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The other auxiliary agent is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 2,4,6-tris(2'-n-butoxyphenyl)-1,3,5-triazine and benzisothiazoline-3-one in a weight ratio of 1.5-2.5:1:0.5-1.

5.

6. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The rodent repellent is at least one of capsaicin, dihydrocapsaicin, homocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, N-octanoylvanillamide, N-nonanoylvanillamide and N-decanoylvanillamide.

7. The rodent-proof material for electric grid blocking according to claim 1, characterized in that: The structural formula of the rodent repellent is:

8. The rodent-proof material for electric grid blocking according to claim 7, characterized in that: The preparation method of the rodent repellent comprises the following steps: using vanillin amine and piperic acid as raw materials, using toluene as solvent, carrying out a dehydration reaction under the catalysis of boric acid, cooling to room temperature after the reaction, washing with water, drying with anhydrous sodium sulfate, using a rotary evaporator to reduce pressure and recover toluene, stirring and crystallizing the remaining liquid, and obtaining N-piperonyl vanillamide.

9. The rodent-proof material for electric grid blocking according to claim 8, characterized in that: The molar ratio of the vanillin amine, piperic acid and boric acid is 1:1:0.1-0.2, the amount of toluene used is 6-10 times the volume of the vanillin amine, the temperature of the dehydration reaction is 120-130°C, and the reaction time is 8-10 hours.

10. A method for preparing a rodent-proof material for electric grid blocking according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) Weigh the above raw materials according to weight ratio; (2) Grinding the refractory material and lightweight aggregate and passing through a 100-200 mesh sieve to obtain a mixed powder for later use; (3) Aromatic resin, tributyl citrate and methyl silicone oil are added into a mixer and stirred at 80-100° C. for 1-5 minutes, and then sodium silicate and mixed powder are added. After stirring for 5-15 minutes, the temperature is lowered to 30-50° C., and environmentally friendly flame retardant, sulfoaluminate, calcium stearate, hexadecyltrimethylammonium chloride, rodent repellent and deionized water are added and mixed evenly to obtain a rodent repellent material for power grid blocking.

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