A preparation method of epoxy resin modified asparagus polyurea seam beautifying agent

Abstract

The invention discloses a preparation method of an epoxy resin modified asparagus polyurea seam beautifying agent, and relates to the technical field of epoxy resins. The invention comprises the following steps: chemically reacting aliphatic primary amines and alicyclic primary amines with hydrogenated bisphenol A type epoxy resins through a ring-opening reaction, and controlling the reaction degree through a microwave chemical system to uniformly generate epoxy resin modified aliphatic or alicyclic primary diamines, thereby improving production efficiency; generating a modified polyurea resin A through an addition reaction, thereby reducing the activity of aliphatic primary amines and alicyclic primary amines; adding a stabilizer to react with isocyanate to generate a stable organic isocyanate compound, and mixing the organic isocyanate compound with a polyether polyol to generate a modified polyurea curing agent B, thereby reducing the activity of isocyanate and extending the construction time.

Description

Technical Field

[0001] The invention relates to the technical field of epoxy resins, and more specifically to a method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent. Background Art

[0002] Epoxy-based caulking agent is a professional hardening caulking material, which is mainly made of epoxy resin, curing agent, filler and other raw materials. Compared with traditional cement caulking materials, the advantages of epoxy-based caulking agent are that its strength, toughness, water resistance, chemical corrosion resistance and other aspects have been significantly improved. However, the yellowing resistance of conventional epoxy-based caulking agent is poor due to the benzene ring structure of bisphenol A epoxy resin. Polyurea caulking agent is increasingly favored by consumers because of its better yellowing resistance.

[0003] In the prior art, traditional polyurea caulking agents have many shortcomings. On the one hand, the traditional polyurea caulking agents have high activity of reactants, which leads to skin allergies for constructors, bulging due to short construction time, and low bonding strength and easy falling off of the solidified materials after mixing during the construction process. On the other hand, the traditional polyurea caulking agents have low preparation speed during the preparation process. Therefore, the present invention proposes a preparation method of epoxy resin modified asparagus polyurea caulking agent, aiming to provide a preparation method of epoxy resin modified asparagus polyurea caulking agent which can reduce the activity of reactants, prolong the construction time and improve the preparation speed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention discloses a method for preparing an epoxy resin modified asparagus polyurea seam beautifying agent, which can reduce the activity of reactants, prolong the construction time and improve the preparation speed; aliphatic primary amines and alicyclic primary amines are chemically reacted with hydrogenated bisphenol A type epoxy resin through a ring-opening reaction to generate aliphatic or alicyclic primary diamines, and the reaction degree is controlled by a microwave chemical system to improve production efficiency; aliphatic or alicyclic primary diamines and alkylated maleates are reacted through an addition reaction to generate a modified polyurea resin A, and the activity of aliphatic primary amines and alicyclic primary amines is reduced; a stabilizer is added to react with isocyanate to generate a stable organic isocyanate compound, and the organic isocyanate compound is mixed with a polyether polyol to generate a modified polyurea curing agent B, so that the activity of isocyanate is reduced and the construction time is extended.

[0005] The present invention adopts the following technical solutions:

[0006] A method for preparing an epoxy resin modified asparagus polyurea seam beautifying agent comprises the following steps:

[0007] Step 1: Prepare raw materials;

[0008] The components of the raw materials include 3-4 parts of aliphatic primary amine, 3-4 parts of alicyclic primary amine, 1.6-2 parts of hydrogenated bisphenol A epoxy resin, 0.4-0.5 parts of diethyl maleate, 0.4-0.5 parts of dibutyl maleate, 4-5 parts of isocyanate, 2-3 parts of polyether polyol and 0.9-1 parts of stabilizer by weight;

[0009] Step 2: performing a ring-opening reaction to generate an aliphatic or alicyclic primary diamine;

[0010] Aliphatic primary amine and alicyclic primary amine are chemically reacted with hydrogenated bisphenol A epoxy resin to generate aliphatic or alicyclic primary diamine through a ring-opening reaction, wherein the ring-opening reaction is controlled by a microwave chemical system;

[0011] Step 3, obtaining modified polyurea resin A;

[0012] The modified polyurea resin A is generated by reacting an aliphatic or alicyclic primary diamine with an alkylated maleate through an addition reaction. The chemical reaction formula of the addition reaction is:

[0013]

[0014] In reaction formula (1), represents alkylated maleate, represents an aliphatic or alicyclic primary diamine, Represents modified polyurea resin A;

[0015] Step 4, obtaining modified polyurea curing agent B;

[0016] By adding a stabilizer to react with isocyanate HDI, a stable organic isocyanate compound is generated to achieve the purpose of reducing the reactivity of isocyanate, and the organic isocyanate compound is mixed with polyether polyol to react to generate a modified polyurea curing agent B. The chemical reaction formula of the addition reaction is:

[0017]

[0018] In reaction (2), Indicates stabilizer, represents the terminal group of the isocyanate polymer chain, represents an organic isocyanate compound, represents carbon dioxide, represents carbon monoxide, Represents ammonia, It means water;

[0019] Step 5, preparing seam beautifying agent A and seam beautifying agent B;

[0020] First, a modified polyurea resin A is obtained through steps 2 and 3, and a modified polyurea curing agent B is obtained through step 4, wherein hydrophobic fumed silica, filler powder, molecular sieve, defoaming agent and color powder are purchased from a chemical market, and then a caulking agent A is prepared according to the ratio of modified polyurea resin A: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent = 25:3:15:1:1, and a caulking agent B is prepared according to the ratio of modified polyurea curing agent B: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent: color powder = 29:3:15:1:1:1.

[0021] As a further technical solution of the present invention, the aliphatic primary amine and the alicyclic primary amine are obtained by chemically reacting aliphatic alcohols and alicyclic compounds with hydrogen through a fatty alcohol amination method and a heating condensation method, the hydrogenated bisphenol A type epoxy resin and the special alicyclic epoxy resin are obtained through an epoxidation reaction of bisphenol A and alicyclic compounds with an epoxidizing agent, the diethyl maleate and dibutyl maleate are obtained through an esterification reaction of maleic acid with ethanol and n-butanol, and the isocyanate, polyether polyol and stabilizer are purchased from the chemical market.

[0022] As a further technical solution of the present invention, the specific steps of the ring-opening reaction are as follows:

[0023] Step 1, preparing aliphatic primary amine and alicyclic primary amine;

[0024] Weigh 8 parts of aliphatic primary amine and alicyclic primary amine in a ratio of 1:1 and put them into a reaction kettle, mix the mixture evenly with a paddle stirrer to obtain a primary amine mixture, and heat the primary amine mixture to 70-80° C. with a heater;

[0025] Step 2, preparing hydrogenated bisphenol A epoxy resin;

[0026] Weigh 2 parts of hydrogenated bisphenol A epoxy resin and add them into the reactor dropper, and heat the hydrogenated bisphenol A epoxy resin to 70-80° C. through a heater;

[0027] Step 3, adding hydrogenated bisphenol A epoxy resin dropwise;

[0028] The temperature in the reactor is controlled within 50° C. by a microwave chemical system, and the hydrogenated bisphenol A epoxy resin is slowly added dropwise to the primary amine mixture for 1-2 hours. During the addition process, the speed of the reactor dropper is controlled by a valve;

[0029] Step 4, vacuumize and start the reaction;

[0030] After the dropwise addition process is completed, first, the reactor is closed to form a closed space, and the air or gas is pumped out of the reactor by a vacuum pump to form a vacuum environment. Secondly, a catalyst is added to start the reaction. During the reaction, the microwave chemical system is used to reduce the activation energy of the reaction and increase the reaction rate. The chemical reaction formula of the ring-opening reaction is:

[0031]

[0032] In reaction (3), Represents hydrogenated bisphenol A epoxy resin, represents a primary amine mixture molecule, where represents an alkyl group of an aliphatic primary amine or an aromatic ring group of an alicyclic primary amine, represents an aliphatic or alicyclic primary diamine, It means water;

[0033] Step 5, obtaining an aliphatic or alicyclic primary diamine;

[0034] After the reaction is completed, the mixture is treated by extraction with an organic solvent, and the aliphatic or alicyclic primary diamine is dissolved in the organic solvent to obtain the aliphatic or alicyclic primary diamine.

[0035] As a further technical solution of the present invention, the microwave chemical system includes a microwave generator, a microwave reflector, a temperature control device and a visualization module. The microwave generator is used to generate microwaves, the microwave reflector is used to generate a microwave radiation field, the temperature control device is used to adjust the temperature in the reactor, and the visualization module is used to display microwave data, microwave radiation energy, temperature data and reaction rate data in real time. The working method of the microwave chemical system includes the following steps:

[0036] S1 generates microwaves;

[0037] The microwave generator generates microwaves by a solid-state oscillation method, and calculates the generated microwave radiation energy by a microwave energy function. The formula of the microwave energy function is:

[0038]

[0039] In formula (4), is the microwave radiation energy, is Planck's constant, The value of is the speed of light, The value of , is the wavelength of microwaves;

[0040] S2 forms a uniform microwave radiation field;

[0041] The microwave reflector is made of metal material to form a closed space and is placed outside the reactor. The microwave reflector forms a stable and uniform radiation field based on the interaction between electromagnetic waves and free electrons in the metal.

[0042] S3 obtains and controls the temperature in the reactor;

[0043] The temperature control device collects temperature data in the reactor through an infrared thermometer, and transmits the temperature data to the RK3288 chip through the RS485 communication protocol. The RK3288 chip outputs a temperature control instruction according to a set reaction temperature threshold, and transmits the temperature control instruction to the actuator. The actuator controls the operation of the heater or refrigerator according to the temperature control instruction;

[0044] S4 obtains the reaction rate of a chemical reaction;

[0045] The microwave chemical system calculates the reaction rate of the chemical reaction in the microwave radiation field through the reaction rate function embedded in the RK3288 chip. The formula of the reaction rate function is:

[0046]

[0047] In formula (5), is the reaction rate of the chemical reaction, is the activation energy of the chemical reaction, is the microwave radiation energy, The energy required for the reaction, is the frequency factor, is the gas constant, is the temperature in the reactor;

[0048] S5 for real-time display;

[0049] The visualization module displays the generated microwave data, microwave radiation energy, temperature data and reaction rate data in real time through the Internet of Things platform.

[0050] As a further technical solution of the present invention, the components of the seam beautifying agent A include 60-80 parts by weight of modified polyurea resin A, 4-6 parts of hydrophobic fumed silica, 1-3 parts of molecular sieves, 20-40 parts of filling powder and 1-3 parts of defoaming agent, and the components of the seam beautifying agent B include 50-70 parts by weight of modified polyurea curing agent B, 3-6 parts of hydrophobic fumed silica, 1-3 parts of molecular sieves, 30-50 parts of filling powder, 3-5 parts of color powder and 1-3 parts of defoaming agent.

[0051] As a further technical solution of the present invention, the hydrophobic fumed silica increases the dispersion of the raw materials in the modified polyurea resin A through a dispersing effect, and increases the rheological properties of the modified polyurea resin A. The filler powder increases the density and durability of the modified polyurea resin A by filling the gaps. The molecular sieve uses a combination of physical adsorption and chemical adsorption to adsorb impurities and moisture in the caulking agent A to achieve the purpose of purifying the caulking agent A. The defoaming agent eliminates or prevents the formation of bubbles by reducing the surface tension between the caulking agent A and the air. The color powder changes the color of the caulking agent B through a colorant.

[0052] As a further technical solution of the present invention, the construction steps of the epoxy resin modified asparagus polyurea seam beautifying agent are as follows:

[0053] S01 Clean the gap;

[0054] First, use a utility knife to clean the cement dust in the gap at a 45-degree angle, and use a vacuum cleaner to remove dust and impurities. Then use a multi-functional decontamination paste to clean the black edges of the tiles, and then use a dry towel to wipe the gaps and brick surfaces to ensure that the construction environment is clean and dry.

[0055] S02 waxes around the gap;

[0056] Dip a sponge in a proper amount of caulking wax and apply it on the tile surfaces on both sides of the gap to facilitate the removal of excess material later;

[0057] S03 inject the caulking agent into the gap;

[0058] First, apply 40cm of caulking agent to avoid uneven mixing of caulking agent A and agent B. Then, fit the glue nozzle to the gap. The angle between the glue gun and the gap should be greater than 60 degrees. Apply glue at a constant speed in an upright position. Make sure the glue gun tip fully injects the caulking agent into the gap and fills it up.

[0059] S04 press seam;

[0060] After the glue is applied, start pressing the glue. First, use a metal groove knife to test the pressure to confirm the fluidity and adhesion of the caulking agent. Then maintain a stable force and drag the silicone rod at a constant speed to complete the pressing.

[0061] S05 clean up the remaining materials;

[0062] After the caulking agent solidifies, use a spatula to remove the remaining material to complete the caulking operation.

[0063] The present invention has the following positive and beneficial effects compared with the prior art:

[0064] The invention discloses a preparation method of an epoxy resin modified asparagus polyurea seam beautifying agent, which can reduce the activity of reactants, prolong the construction time and improve the preparation speed; aliphatic primary amines and alicyclic primary amines are chemically reacted with hydrogenated bisphenol A type epoxy resin through a ring-opening reaction to generate aliphatic or alicyclic primary diamines, and the reaction degree is controlled by a microwave chemical system to improve production efficiency; aliphatic or alicyclic primary diamines and alkylated maleates are reacted through an addition reaction to generate a modified polyurea resin A, and the activity of aliphatic primary amines and alicyclic primary amines is reduced; a stabilizer is added to generate an addition reaction with isocyanate to generate a stable organic isocyanate compound, and the organic isocyanate compound is mixed with a polyether polyol to generate a modified polyurea curing agent B, so that the activity of isocyanate is reduced and the construction time is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 The overall process diagram of the preparation method of the epoxy resin modified asparagine polyurea seam beautifying agent of the present invention is shown;

[0066] Figure 2 It is a specific schematic diagram of the ring-opening reaction in the preparation method of an epoxy resin modified asparagine polyurea seam beautifying agent of the present invention;

[0067] Figure 3 The schematic diagram of the working process of the microwave chemical system in the preparation method of the epoxy resin modified asparagine polyurea seam beautifying agent of the present invention;

[0068] Figure 4 This is a schematic diagram of the contents of agent A and agent B in a method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent of the present invention;

[0069] Figure 5 The present invention is a schematic diagram of the construction process in the preparation method of an epoxy resin modified asparagus polyurea seam beautifying agent. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0071] A method for preparing an epoxy resin modified asparagus polyurea seam beautifying agent comprises the following steps:

[0072] Step 1: Prepare raw materials;

[0073] The components of the raw materials include 3 parts of aliphatic primary amine, 3 parts of alicyclic primary amine, 1.6 parts of hydrogenated bisphenol A epoxy resin, 0.4 parts of diethyl maleate, 0.4 parts of dibutyl maleate, 4 parts of isocyanate, 2 parts of polyether polyol and 0.9 parts of stabilizer by weight;

[0074] Step 2: performing a ring-opening reaction to generate an aliphatic or alicyclic primary diamine;

[0075] Aliphatic primary amine and alicyclic primary amine are chemically reacted with hydrogenated bisphenol A epoxy resin to generate aliphatic or alicyclic primary diamine through a ring-opening reaction, wherein the ring-opening reaction is controlled by a microwave chemical system;

[0076] Step 3, obtaining modified polyurea resin A;

[0077] The aliphatic or alicyclic primary diamine and the alkylated maleate are reacted by addition reaction to generate a modified polyurea resin A. The chemical reaction formula of the addition reaction is:

[0078]

[0079] In reaction formula (1), represents alkylated maleate, represents an aliphatic or alicyclic primary diamine, Represents modified polyurea resin A;

[0080] Step 4, obtaining modified polyurea curing agent B;

[0081] By adding a stabilizer to react with isocyanate HDI, a stable organic isocyanate compound is generated to achieve the purpose of reducing the reactivity of isocyanate, and the organic isocyanate compound is mixed with polyether polyol to react to generate a modified polyurea curing agent B. The chemical reaction formula of the addition reaction is:

[0082]

[0083] In reaction (2), Indicates stabilizer, represents the terminal group of the isocyanate polymer chain, represents an organic isocyanate compound, represents carbon dioxide, represents carbon monoxide, Represents ammonia, It means water;

[0084] Step 5, preparing seam beautifying agent A and seam beautifying agent B;

[0085] First, a modified polyurea resin A is obtained through steps 2 and 3, and a modified polyurea curing agent B is obtained through step 4, wherein hydrophobic fumed silica, filler powder, molecular sieve, defoaming agent and color powder are purchased from a chemical market, and then a caulking agent A is prepared according to the ratio of modified polyurea resin A: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent = 25:3:15:1:1, and a caulking agent B is prepared according to the ratio of modified polyurea curing agent B: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent: color powder = 29:3:15:1:1:1.

[0086] The mass percentage of the raw materials in the above steps is shown in Table 1:

[0087]

[0088] Now, an example is given. Two groups of examples are compared for the scheme of the present invention. During the comparison process, four areas to be beautified with the same material and position are tested. The number of tests is 3. When the four areas to be beautified with the same material and position are tested, two of them use polyurea beautifying agent, which are recorded as comparison area 1 and comparison area 2. The beautifying agent with the above formula is used in the test area, which is recorded as test area 1 and test area 2. Different types of beautifying agents are used to treat the areas to be beautified, and the results after the treatment are observed and recorded. The comparison diagram is shown in Table 2:

[0089]

[0090] The bonding strength and yellowing time of the caulking agent directly affect the performance of the caulking agent, and the drying time of the caulking agent directly affects the construction time of the caulking agent. Therefore, performance indicators such as drying time, bonding strength and yellowing time are extremely important for the formulation of the caulking agent. Through experiments, in the scheme of the present invention, the present invention uses epoxy resin to structurally modify the polyurea caulking agent, so that while retaining excellent yellowing resistance, the introduction of the epoxy resin structure prolongs the construction time, and at the same time has the characteristics of excellent bonding strength and hardness of epoxy resin. Example

[0091] A method for preparing an epoxy resin modified asparagus polyurea seam beautifying agent comprises the following steps:

[0092] Step 1: Prepare raw materials;

[0093] The components of the raw materials include 4 parts of aliphatic primary amine, 4 parts of alicyclic primary amine, 2 parts of hydrogenated bisphenol A epoxy resin, 0.5 parts of diethyl maleate, 0.5 parts of dibutyl maleate, 5 parts of isocyanate, 3 parts of polyether polyol and 1 part of stabilizer by weight;

[0094] Step 2: performing a ring-opening reaction to generate an aliphatic or alicyclic primary diamine;

[0095] Aliphatic primary amine and alicyclic primary amine are chemically reacted with hydrogenated bisphenol A epoxy resin to generate aliphatic or alicyclic primary diamine through a ring-opening reaction, wherein the ring-opening reaction is controlled by a microwave chemical system;

[0096] Step 3, obtaining modified polyurea resin A;

[0097] The aliphatic or alicyclic primary diamine and the alkylated maleate are reacted by addition reaction to generate a modified polyurea resin A. The chemical reaction formula of the addition reaction is:

[0098]

[0099] In reaction formula (1), represents alkylated maleate, represents an aliphatic or alicyclic primary diamine, Represents modified polyurea resin A;

[0100] Step 4, obtaining modified polyurea curing agent B;

[0101] By adding a stabilizer to react with isocyanate HDI, a stable organic isocyanate compound is generated to achieve the purpose of reducing the reactivity of isocyanate, and the organic isocyanate compound is mixed with polyether polyol to react to generate a modified polyurea curing agent B. The chemical reaction formula of the addition reaction is:

[0102]

[0103] In reaction (2), Indicates stabilizer, represents the terminal group of the isocyanate polymer chain, represents an organic isocyanate compound, represents carbon dioxide, represents carbon monoxide, Represents ammonia, It means water;

[0104] Step 5, preparing seam beautifying agent A and seam beautifying agent B;

[0105] First, a modified polyurea resin A is obtained through steps 2 and 3, and a modified polyurea curing agent B is obtained through step 4, wherein hydrophobic fumed silica, filler powder, molecular sieve, defoaming agent and color powder are purchased from a chemical market, and then a caulking agent A is prepared according to the ratio of modified polyurea resin A: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent = 25:3:15:1:1, and a caulking agent B is prepared according to the ratio of modified polyurea curing agent B: hydrophobic fumed silica: filler powder: molecular sieve: defoaming agent: color powder = 29:3:15:1:1:1.

[0106] The mass percentage of the raw materials in the above steps is shown in Table 3:

[0107]

[0108] Now, an example is given. Two groups of examples are compared for the scheme of the present invention. During the comparison process, four areas to be beautified with the same material and position are tested. The number of tests is 3 times. When the four areas to be beautified with the same material and position are tested, two of them use polyurea beautifying agent, which are recorded as comparison area 1 and comparison area 2. The beautifying agent with the above formula is used in the test area, which is recorded as test area 1 and test area 2. Different types of beautifying agents are used to treat the areas to be beautified, and the results after the treatment are observed and recorded. The comparison schematic table is shown in Table 4:

[0109]

[0110] Through experiments, it was found that in the scheme of the present invention, the polyurea seam beautifying agent is structurally modified by epoxy resin, so that while retaining excellent yellowing resistance, the introduction of the epoxy resin structure prolongs the construction time, and at the same time has the excellent bonding strength and hardness characteristics of epoxy resin.

[0111] In the above embodiments, the aliphatic primary amine and the alicyclic primary amine are obtained by chemically reacting aliphatic alcohols and alicyclic compounds with hydrogen through a fatty alcohol amination method and a heating condensation method, the hydrogenated bisphenol A type epoxy resin and the special alicyclic epoxy resin are obtained by an epoxidation reaction of bisphenol A and alicyclic compounds with an epoxidizing agent, the diethyl maleate and dibutyl maleate are obtained by an esterification reaction of maleic acid with ethanol and n-butanol, and isocyanate, polyether polyol and stabilizer are purchased from the chemical market.

[0112] In a specific embodiment, the principle of the fatty alcohol amination method is: the hydroxyl group and the amine group in the fatty alcohol react chemically under the action of a catalyst to generate an intermediate - hydroxylamine salt, and then the hydroxylamine salt is reduced in the presence of hydrogen to generate the corresponding aliphatic primary amine; the principle of the heating condensation method is: the alicyclic compound and hydrogen undergo a condensation reaction under heating conditions to generate an alicyclic amide intermediate, and then the alicyclic amide undergoes a saturated reduction reaction to generate the corresponding alicyclic primary amine; the process of preparing hydrogenated bisphenol A type epoxy resin by epoxidation reaction: first, bisphenol A is reacted with hydrogen at a high temperature to generate hydrogenated bisphenol A; secondly, hydrogenated bisphenol A is reacted with an epoxidizing agent such as Propylene oxide reacts with other substances to generate epoxidized bisphenol A; then, epoxidized bisphenol A is reacted with terminal amine-containing compounds such as polyamide amine to generate hydrogenated bisphenol A type epoxy resin; the process of preparing special alicyclic epoxy resin by epoxidation reaction: first, it is necessary to determine a suitable epoxidant before preparing the special alicyclic epoxy resin; secondly, in the presence of a certain catalyst, the alicyclic compound reacts with the epoxidant to generate an epoxidized alicyclic compound; finally, the epoxidized alicyclic compound reacts with an amine compound to generate a special alicyclic epoxy resin; the principle of esterification reaction: carboxylic acid and alcohol are esterified under acid catalysis to generate ester and water.

[0113] In the above embodiment, the specific steps of the ring-opening reaction are as follows:

[0114] Step 1, preparing aliphatic primary amine and alicyclic primary amine;

[0115] Weigh 8 parts of aliphatic primary amine and alicyclic primary amine in a ratio of 1:1 and put them into a reaction kettle, mix the mixture evenly with a paddle stirrer to obtain a primary amine mixture, and heat the primary amine mixture to 70-80° C. with a heater;

[0116] Step 2, preparing hydrogenated bisphenol A epoxy resin;

[0117] Weigh 2 parts of hydrogenated bisphenol A epoxy resin and add them into the reactor dropper, and heat the hydrogenated bisphenol A epoxy resin to 70-80° C. through a heater;

[0118] Step 3, adding hydrogenated bisphenol A epoxy resin dropwise;

[0119] The temperature in the reactor is controlled within 50° C. by a microwave chemical system, and the hydrogenated bisphenol A epoxy resin is slowly added dropwise to the primary amine mixture for 1-2 hours. During the addition process, the speed of the reactor dropper is controlled by a valve;

[0120] Step 4, vacuumize and start the reaction;

[0121] After the dropwise addition process is completed, first, the reactor is closed to form a closed space, and the air or gas is pumped out of the reactor by a vacuum pump to form a vacuum environment. Secondly, a catalyst is added to start the reaction. During the reaction, the microwave chemical system is used to reduce the activation energy of the reaction and increase the reaction rate. The chemical reaction formula of the ring-opening reaction is:

[0122]

[0123] In reaction (3), Represents hydrogenated bisphenol A epoxy resin, represents a primary amine mixture molecule, where represents an alkyl group of an aliphatic primary amine or an aromatic ring group of an alicyclic primary amine, represents an aliphatic or alicyclic primary diamine, It means water;

[0124] Step 5, obtaining an aliphatic or alicyclic primary diamine;

[0125] After the reaction is completed, the mixture is treated by extraction with an organic solvent, and the aliphatic or alicyclic primary diamine is dissolved in the organic solvent to obtain the aliphatic or alicyclic primary diamine.

[0126] In a specific embodiment, a ring-opening reaction is a common type of chemical reaction, which usually refers to a heterocyclic compound undergoing a partial acidolysis reaction in the ring under acid catalysis to form a byproduct without a ring. The principle involves the activation of the electrophilic or nucleophilic center inside the heterocyclic compound under acid (or base) catalysis, thereby causing a reaction process of breaking the intracyclic bond to form a side reaction product without a ring. A reactor is a device for chemical reactions. Its main function is to promote chemical reactions between reactants under certain conditions such as temperature and pressure to produce the desired chemical products. The reactor includes components such as a reaction vessel, a paddle stirrer, and a heating or cooling device. Among them, the reaction vessel is the main body of the reaction and provides the chemical environment required for the chemical reaction to occur in the reaction; the paddle stirrer is used to mix the components evenly, promote the interaction between the reactants, and thus accelerate the chemical reaction. The principle of the paddle stirrer is to drive the rotating blade through a motor to distribute the energy of each molecule in the reaction system more evenly, so that the reactants are further fully mixed; the heating or cooling device is to adjust the temperature during the reaction. The heating or cooling device achieves the regulation and control of the reaction temperature by providing or absorbing energy. A vacuum pump is a device used to absorb gas and generate a vacuum. Its principle is to draw gas into the pump through mechanical movement and then discharge the gas through the connection port with the isolation medium. In the pump, the gas molecules are mechanically squeezed together, increasing the probability of collision between gas molecules, and then sucked into the exhaust channel to form a vacuum. The oven is used to heat objects for the purpose of drying, baking, sterilizing or baking. Its principle is to use the heating element to generate heat, which is then transferred to the box body and heats the objects placed.

[0127] In the above embodiment, the microwave chemical system includes a microwave generator, a microwave reflector, a temperature control device and a visualization module. The microwave generator is used to generate microwaves, the microwave reflector is used to generate a microwave radiation field, the temperature control device is used to adjust the temperature in the reactor, and the visualization module is used to display microwave data, microwave radiation energy, temperature data and reaction rate data in real time. The working method of the microwave chemical system includes the following steps:

[0128] S1 generates microwaves;

[0129] The microwave generator generates microwaves by a solid-state oscillation method, and calculates the generated microwave radiation energy by a microwave energy function. The formula of the microwave energy function is:

[0130]

[0131] In formula (4), is the microwave radiation energy, is Planck's constant, The value of is the speed of light, The value of , is the wavelength of microwaves;

[0132] S2 forms a uniform microwave radiation field;

[0133] The microwave reflector is made of metal material to form a closed space and is placed outside the reactor. The microwave reflector forms a stable and uniform radiation field based on the interaction between electromagnetic waves and free electrons in the metal.

[0134] S3 obtains and controls the temperature in the reactor;

[0135] The temperature control device collects temperature data in the reactor through an infrared thermometer, and transmits the temperature data to the RK3288 chip through the RS485 communication protocol. The RK3288 chip outputs a temperature control instruction according to a set reaction temperature threshold, and transmits the temperature control instruction to the actuator. The actuator controls the operation of the heater or refrigerator according to the temperature control instruction;

[0136] S4 obtains the reaction rate of a chemical reaction;

[0137] The microwave chemical system calculates the reaction rate of the chemical reaction in the microwave radiation field through the reaction rate function embedded in the RK3288 chip. The formula of the reaction rate function is:

[0138]

[0139] In formula (5), is the reaction rate of the chemical reaction, is the activation energy of the chemical reaction, is the microwave radiation energy, The energy required for the reaction, is the frequency factor, is the gas constant, is the temperature in the reactor;

[0140] S5 for real-time display;

[0141] The visualization module displays the generated microwave data, microwave radiation energy, temperature data and reaction rate data in real time through the Internet of Things platform.

[0142] In a specific embodiment, an application platform of a microwave chemical system can be constructed. During the operation of the platform, a hardware platform can be constructed, such as by constructing the following components for processing: a programmable controller, a storage device, a microwave generator, an infrared thermometer, a heater, a refrigerator, a bus and a display. The following is a more detailed description of the implementation method:

[0143] Programmable controller: A programmable controller can perform arithmetic and logical operations on data, as well as basic operations such as reading and storing data in memory.

[0144] Storage devices: Microwave chemistry systems need to store large amounts of data and need to read and write data quickly during the operation process, so high-speed storage devices such as SSD (solid-state drive) or NVMe (non-volatile memory extension) are required.

[0145] Microwave generator: Microwave generator is used to generate microwave signals.

[0146] Infrared thermometer: Infrared thermometer determines the temperature of the reactor by measuring the infrared energy radiated from the surface of the reactor.

[0147] Heater: The heater is used to provide heat to the reactor to increase the temperature of the reactor.

[0148] Refrigerator: The refrigerator uses the refrigerant through the process of compression and expansion to absorb heat from the air or reactor and discharge it to the outside, thereby reducing the temperature of the reactor.

[0149] Bus: The bus is used to connect the various components of the device and realize communication and coordination between the components by transmitting data, control and address information.

[0150] Display: The display is used to display the system operating status and parameters, providing users with a window to observe and adjust parameters in a timely manner.

[0151] With the collaboration of these hardware components, the operation of the microwave chemical system can be realized according to specific application needs and system requirements. In actual applications, control instructions can be output according to the current air quality data to control the working state of the plasma purifier, reduce the energy consumption of the plasma purifier, and thus reduce the total energy consumption of commercial freezers and reduce the cost of use.

[0152] In a specific embodiment, a microwave generator is used to generate a high-frequency microwave signal. The main principle is to use the feedback effect in the microwave oscillation circuit to make the resonant circuit in the circuit generate self-oscillation, thereby generating a stable high-frequency microwave signal. The specific steps are as follows: 1. Generate an excitation signal: There is an excitation signal generator inside the microwave generator, which generates a stable high-frequency excitation signal through an oscillator or other electronic components. 2. Signal amplification: The excitation signal is passed through an amplifier to reach a sufficient amplitude. 3. Generate a resonant circuit: In the microwave generator, a resonant circuit is generated using a resonant cavity in a microwave circuit. 4. Oscillation circuit self-excitation: The amplified excitation signal is connected to the resonant circuit through a coupler to generate feedback. If the output energy is sufficient, the feedback signal will repeatedly jump in the resonant circuit and form a stable microwave oscillation circuit. In this oscillator, the frequency of the resonator matches the time step of the feedback circuit, thereby generating a microwave signal. 5. Output microwave signal: The microwave signal generated by the resonant circuit in the circuit is output from the output interface, which enables the microwave generator to achieve the required microwave power output; the infrared thermometer uses the characteristics of infrared radiation energy for measurement. The infrared sensor consists of a photosensitive element and an optical system. Its temperature measurement principle is as follows: First, when the surface temperature of an object is higher than absolute zero, its surface will emit infrared radiation; second, the infrared sensor captures the radiation energy and converts it into an electrical signal; then, the infrared sensor quantifies the radiation energy, converts the radiation energy into a voltage signal, and outputs it in a certain proportion; finally, the infrared thermometer converts the output voltage signal into the surface temperature of the object through internal algorithms and calibration parameters. The principle of the heater is to convert electrical energy or other energy into thermal energy to increase the temperature of the heated object. The commonly used heater is an electric heater, which generates heat energy by resistive heating. The principle of the refrigerator is to use the refrigeration cycle of the refrigerant to reduce the temperature of the object. The refrigeration cycle usually includes four basic parts: compressor, condenser, expansion valve and evaporator. Among them, the compressor responsible for pressurizing the refrigerant compresses the low-temperature and low-pressure gas to increase its temperature and pressure. The condenser cools the compressed gas by discharging the heat of the refrigerant and converts it into a high-pressure and high-temperature liquid. Next, the liquid refrigerant passes through the throttling effect of the expansion valve, so that its pressure is reduced and the temperature also drops. Finally, the refrigerant flows through the evaporator and absorbs the heat from the surface of the object to be refrigerated, thereby achieving the purpose of refrigeration. Example

[0153] In the above embodiment, the components of the caulking agent A include 60 parts of modified polyurea resin A, 4 parts of hydrophobic fumed silica, 1 part of molecular sieve, 20 parts of filling powder and 1 part of defoaming agent by weight, and the components of the caulking agent B include 50 parts of modified polyurea curing agent B, 3 parts of hydrophobic fumed silica, 1 part of molecular sieve, 30 parts of filling powder, 3 parts of color powder and 1 part of defoaming agent by weight.

[0154] The mass percentage of the raw materials in the above steps is shown in Table 5:

[0155]

[0156] Now, an example is given. Two groups of examples are compared for the scheme of the present invention. During the comparison process, four areas to be beautified with the same material and position are tested. The number of tests is 4 times. When the four areas to be beautified with the same material and position are tested, two of them use polyurea beautifying agent, which are recorded as comparison area 1 and comparison area 2. The beautifying agent with the above formula is used in the test area, which is recorded as test area 1 and test area 2. Different types of beautifying agents are used to treat the areas to be beautified, and the results after the treatment are observed and recorded. The comparison diagram is shown in Table 6:

[0157]

[0158] The dispersion, impurity content and moisture content of the caulking agent directly affect the performance of the caulking agent, and the Shore hardness of the caulking agent reflects the wear resistance, pressure resistance and durability of the caulking agent. Therefore, performance indicators such as Shore hardness, dispersion, impurity content and moisture content are extremely important for the formulation of the caulking agent. Through experiments, in the scheme of the present invention, the performance indicators of the caulking agent used in the present invention are significantly higher than those of the polyurea caulking agent, which has outstanding technical effects and significant technical progress. Example

[0159] In the above embodiment, the components of the caulking agent A include 80 parts of modified polyurea resin A, 6 parts of hydrophobic fumed silica, 3 parts of molecular sieves, 40 parts of filling powder and 3 parts of defoaming agent in weight parts, and the components of the caulking agent B include 70 parts of modified polyurea curing agent B, 6 parts of hydrophobic fumed silica, 3 parts of molecular sieves, 50 parts of filling powder, 5 parts of color powder and 3 parts of defoaming agent in weight parts.

[0160] The mass percentage of the raw materials in the above steps is shown in Table 7:

[0161]

[0162] Now, an example is given. Two groups of examples are compared for the scheme of the present invention. During the comparison process, four areas to be beautified with the same material and position are tested. The number of tests is 4 times. When the four areas to be beautified with the same material and position are tested, two of them use polyurea beautifying agent, which are recorded as comparison area 1 and comparison area 2. The beautifying agent with the above formula is used in the test area, which is recorded as test area 1 and test area 2. Different types of beautifying agents are used to treat the areas to be beautified, and the results after the treatment are observed and recorded. The comparison schematic table is shown in Table 8:

[0163]

[0164] Through experiments, it is found that in the scheme of the present invention, the performance index of the seam beautifying agent used in the present invention is significantly higher than that of the polyurea seam beautifying agent, and it has outstanding technical effects and remarkable technical progress.

[0165] In the above embodiment, the hydrophobic fumed silica increases the dispersion of the raw materials in the modified polyurea resin A through a dispersing effect, and increases the rheological properties of the modified polyurea resin A. The filling powder increases the density and durability of the modified polyurea resin A by filling the gaps. The molecular sieve uses a combination of physical adsorption and chemical adsorption to adsorb impurities and moisture in the caulking agent A to achieve the purpose of purifying the caulking agent A. The defoaming agent eliminates or prevents the formation of bubbles by reducing the surface tension between the caulking agent A and the air. The color powder changes the color of the caulking agent B through a colorant.

[0166] In a specific embodiment, after the hydrophobic fumed silica is added to the modified polyurea resin A, it will disperse the particles in the modified polyurea resin A more evenly throughout the system, avoiding the accumulation between the particles and improving the dispersion of the raw materials. On the basis of the dispersion, the hydrophobic fumed silica has a certain surface area and pore structure, which can increase the surface area and gaps of the modified polyurea resin A and increase the rheological properties of the coating; the filling powder increases the density of the material by filling the gaps in the modified polyurea resin A, thereby improving its mechanical properties and compressive strength. At the same time, the filling powder can increase the thickness of the coating, isolate the entry of external substances such as air and water, and improve the quality and durability of the coating; physical adsorption: the lattice structure of the molecular sieve is porous, and a large number of micropores and mesopores can be formed. Physical adsorption such as mutual action, van der Waals force, hydrogen bond, etc. adsorbs impurities and moisture in the target molecules into the pores to reduce the impurities and moisture content in caulking agent A; chemical adsorption: the surface of the molecular sieve usually has some active centers, that is, chemical functional groups, which can react chemically with some molecules in the impurities and moisture in caulking agent A to form chemical bonds or ionic bonds, and adsorb these molecules onto the surface of the molecular sieve to reduce the impurities and moisture content in caulking agent A; the working principle of the defoaming agent is to change the surface tension through its own molecular structure and adsorption on the surface of the material, thereby bursting, disappearing or preventing the formation of bubbles; the toner absorbs light of a specific wavelength through the colorant molecules in the toner, and reflects the remaining light to form a colorful effect, thereby changing the color of caulking agent B.

[0167] In the above embodiment, the construction steps of the epoxy resin modified asparagine polyurea seam beautifying agent are as follows:

[0168] S01 Clean the gap;

[0169] First, use a utility knife to clean the cement dust in the gap at a 45-degree angle, and use a vacuum cleaner to remove dust and impurities. Then use a multi-functional decontamination paste to clean the black edges of the tiles, and then use a dry towel to wipe the gaps and brick surfaces to ensure that the construction environment is clean and dry.

[0170] S02 waxes around the gap;

[0171] Dip a sponge in a proper amount of caulking wax and apply it on the tile surfaces on both sides of the gap to facilitate the removal of excess material later;

[0172] S03 inject the caulking agent into the gap;

[0173] First, apply 40cm of caulking agent to avoid uneven mixing of caulking agent A and agent B. Then, fit the glue nozzle to the gap. The angle between the glue gun and the gap should be greater than 60 degrees. Apply glue at a constant speed in an upright position. Make sure the glue gun tip fully injects the caulking agent into the gap and fills it up.

[0174] S04 press seam;

[0175] After the glue is applied, start pressing the glue. First, use a metal groove knife to test the pressure to confirm the fluidity and adhesion of the caulking agent. Then maintain a stable force and drag the silicone rod at a constant speed to complete the pressing.

[0176] S05 clean up the remaining materials;

[0177] After the caulking agent solidifies, use a spatula to remove the remaining material to complete the caulking operation.

[0178] In a specific embodiment, the first step is to clean the gaps. The reason why the gaps need to be cleaned before gluing is that if the tile surface and the gaps are not cleaned, and the environment is humid, and there is a lot of dust and impurities in the air, it will affect the adhesion of the caulking agent and the caulking effect. Therefore, thoroughly cleaning the construction environment and ensuring that it is dry and clean will help improve the quality and effect of the caulking. The specific operation is: first use a utility knife to clean the cement dust in the gaps, and then use a vacuum cleaner to suck out the dust and impurities in the gaps. Next, a multifunctional decontamination paste can be used to clean the black edges of the tiles. The multifunctional decontamination paste has multiple functions such as decontamination, wiping, and polishing, which can effectively remove dirt and black edges. After completing the above cleaning work, it is necessary to wipe the gaps and brick surfaces with a dry towel to ensure that the construction environment is clean and dry.

[0179] The second step is waxing. Waxing is helpful for the subsequent removal and cleaning of excess caulking agent. The specific operation is: use a clean sponge to dip an appropriate amount of caulking wax, then put the sponge dipped in caulking wax on the gap, and forcefully squeeze the caulking wax into the gap. During the process, pay attention to controlling the amount of caulking wax to avoid waste and uneven construction. While squeezing in the caulking wax, try to apply it to the surface of the tile so that it is easy to remove the remaining material during subsequent cleaning.

[0180] The third step is to apply glue. Before using the caulking agent, you need to mix caulking agent A and caulking agent B first. Therefore, before applying the glue, you need to apply about 40 cm of caulking agent and set it aside for use to avoid uneven mixing of caulking agent A and B. You can stick the glue nozzle to the gap, make the angle between the glue gun and the gap greater than 60 degrees, and apply the glue upright with uniform speed and force to ensure that the caulking agent is fully filled in the gap.

[0181] The fourth step is to press the glue. First, use a metal grooving knife to test the pressure to confirm the fluidity and adhesion of the grouting agent, and judge whether the pressing of the entire grouting agent has achieved the expected effect. If the fluidity of the grouting agent is not good, the adhesion is not strong, or the expected pressing effect is not achieved, the construction method or the amount of the grouting agent can be adjusted in time. After confirming the fluidity and adhesion of the grouting agent, formal pressing of the glue is carried out. Maintain a stable force and drag the metal grooving knife at a constant speed to complete the pressing of the glue. When pressing the glue, use the method of pressing from the center to the two sides, and then from the two sides to the center to avoid affecting the construction quality of the grouting agent. At the same time, control the size and uniformity of the force, adhere to the principle of uniform force and moderate force, ensure that the grouting agent fully fills the gap, presses firmly, and ensures the cleanliness and smoothness of the tile surface.

[0182] The fifth step is to clean up the remaining material. After the caulking agent solidifies, it is necessary to clean up the excess caulking agent in time to ensure the quality and aesthetics of the caulking project. Specifically, first use a spatula to remove the excess caulking agent for subsequent cleaning operations. When removing the excess caulking agent, it is necessary to control the weight to avoid damaging the surface of the tile; then, check the construction quality and effect of the caulking. If the caulking agent is found to have bubbles, cracks, or shedding, it needs to be repaired and processed in time to ensure that the caulking effect meets the expected requirements.

[0183] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these specific embodiments are only illustrative, and those skilled in the art may omit, replace, and change the details of the above methods and systems in various ways without departing from the principles and essence of the present invention. For example, merging the above method steps so as to perform substantially the same functions in substantially the same manner to achieve substantially the same results is within the scope of the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

Claims

1. A method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent, characterized in that: The following steps are involved: Step 1: Prepare raw materials; The components of the raw materials include 3-4 parts of aliphatic primary amine, 3-4 parts of alicyclic primary amine, 1.6-2 parts of hydrogenated bisphenol A epoxy resin, 0.4-0.5 parts of diethyl maleate, 0.4-0.5 parts of dibutyl maleate, 4-5 parts of isocyanate, 2-3 parts of polyether polyol and 0.9-1 parts of stabilizer by weight; Step 2: performing a ring-opening reaction to generate aliphatic and alicyclic primary diamines; The aliphatic primary amine and the alicyclic primary amine are chemically reacted with the hydrogenated bisphenol A type epoxy resin to generate aliphatic and alicyclic primary diamines through a ring-opening reaction, wherein the ring-opening reaction is controlled by a microwave chemical system; Step 3, obtaining modified polyurea resin A; Aliphatic and alicyclic primary diamines are reacted with diethyl maleate and dibutyl maleate by addition reaction to generate modified polyurea resin A. The chemical reaction diagram of the addition reaction is as follows: In reaction formula (1), represents diethyl maleate and dibutyl maleate, denotes aliphatic and alicyclic primary diamines, Represents modified polyurea resin A; Step 4, obtaining modified polyurea curing agent B; By adding stabilizer H3PO3 to react with isocyanate HDI, a stable organic isocyanate compound is generated to achieve the purpose of reducing the reactivity of isocyanate, and the organic isocyanate compound is mixed with polyether polyol to react to generate modified polyurea curing agent B. The chemical reaction diagram of the addition reaction is as follows: In reaction (2), Indicates stabilizer, represents the terminal group of the isocyanate polymer chain, represents an organic isocyanate compound, Step 5, preparing seam beautifying agent A and seam beautifying agent B; First, a modified polyurea resin A is obtained through steps two and three, and a modified polyurea curing agent B is obtained through step four. The components of the caulking agent A include 60-80 parts of modified polyurea resin A, 4-6 parts of hydrophobic fumed silica, 1-3 parts of molecular sieves, 20-40 parts of filler powder and 1-3 parts of defoaming agent in weight parts, and the components of the caulking agent B include 50-70 parts of modified polyurea curing agent B, 3-6 parts of hydrophobic fumed silica, 1-3 parts of molecular sieves, 30-50 parts of filler powder, 3-5 parts of color powder and 1-3 parts of defoaming agent in weight parts, to obtain caulking agent A and caulking agent B respectively, wherein the hydrophobic fumed silica, filler powder, molecular sieve, defoaming agent and color powder are purchased from the chemical market.

2. The method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent according to claim 1, characterized in that: The specific steps of the ring-opening reaction are as follows: Step 1, preparing aliphatic primary amine and alicyclic primary amine; 8 parts of aliphatic primary amine and alicyclic primary amine were weighed and put into a reaction kettle in a ratio of 1:1, and the mixture was mixed evenly with a paddle stirrer to obtain a primary amine mixture; Step 2, preparing hydrogenated bisphenol A epoxy resin; Weigh 2 parts of hydrogenated bisphenol A epoxy resin and add it into the reactor dropper; Step 3, adding hydrogenated bisphenol A epoxy resin dropwise; The temperature in the reactor is controlled within 50° C. by a microwave chemical system, and the hydrogenated bisphenol A epoxy resin is slowly added dropwise to the primary amine mixture for 1-2 hours. During the addition process, the speed of the reactor dropper is controlled by a valve; Step 4, vacuumize and start the reaction; After the dropwise addition process is completed, first, the reactor is closed to form a closed space, and the air or gas is pumped out of the reactor through a vacuum pump to form a vacuum environment. Secondly, the catalyst is added to start the reaction. During the reaction, the microwave chemical system is used to reduce the activation energy of the reaction and increase the reaction rate. Step 5, obtaining epoxy resin modified aliphatic and alicyclic primary diamines; After the reaction is completed, the mixture is treated by extraction with an organic solvent, and the aliphatic and alicyclic primary diamines are dissolved in the organic solvent to obtain the aliphatic and alicyclic primary diamines.

3. The method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent according to claim 2, characterized in that: The microwave chemical system comprises a microwave generator, a microwave reflector, a temperature control device and a visualization module. The microwave generator is used to generate microwaves, the microwave reflector is used to generate a microwave radiation field, the temperature control device is used to adjust the temperature in the reactor, and the visualization module is used to display microwave data, microwave radiation energy, temperature data and reaction rate data in real time. The working method of the microwave chemical system comprises the following steps: S1 generates microwaves; The microwave generator generates microwaves by a solid-state oscillation method, and calculates the generated microwave radiation energy by a microwave energy function. The formula of the microwave energy function is: In formula (4), is the microwave radiation energy, is Planck's constant, The value is 6.626×10 -34 J.S. is the speed of light, The value is 2.99792458×10 8 m / s, is the wavelength of microwaves; S2 forms a uniform microwave radiation field; The microwave reflector is made of metal material to form a closed space and is placed outside the reactor. The microwave reflector forms a stable and uniform radiation field based on the interaction between electromagnetic waves and free electrons in the metal. S3 obtains and controls the temperature in the reactor; The temperature control device collects temperature data in the reactor through an infrared thermometer, and transmits the temperature data to the RK3288 chip through the RS485 communication protocol. The RK3288 chip outputs a temperature control instruction according to a set reaction temperature threshold, and transmits the temperature control instruction to the actuator. The actuator controls the operation of the heater or refrigerator according to the temperature control instruction; S4 obtains the reaction rate of a chemical reaction; The microwave chemical system calculates the reaction rate of the chemical reaction in the microwave radiation field through the reaction rate function embedded in the RK3288 chip. The formula of the reaction rate function is: In formula (5), is the reaction rate of the chemical reaction, is the activation energy of the chemical reaction, is the microwave radiation energy, The energy required for the reaction, is the frequency factor, is the gas constant, is the temperature in the reactor; S5 for real-time display; The visualization module displays the generated microwave data, microwave radiation energy, temperature data and reaction rate data in real time through the Internet of Things platform.

4. The method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent according to claim 1, characterized in that: The hydrophobic fumed silica increases the dispersion of the raw materials in the modified polyurea resin A through a dispersing effect, and increases the rheological properties of the modified polyurea resin A. The filler powder increases the density and durability of the modified polyurea resin A by filling the gaps. The molecular sieve absorbs impurities and moisture in the caulking agent A by combining physical adsorption and chemical adsorption to achieve the purpose of purifying the caulking agent A. The defoaming agent eliminates or prevents the formation of bubbles by reducing the surface tension between the caulking agent A and the air. The color powder changes the color of the caulking agent B through a colorant.

5. The method for preparing an epoxy resin modified asparagine polyurea seam beautifying agent according to claim 1, characterized in that: The construction steps of the epoxy resin modified asparagus polyurea seam beautifying agent are as follows: S01 Clean the gap; First, use a utility knife to clean the cement dust in the gap at a 45-degree angle, and use a vacuum cleaner to remove dust and impurities. Then use a multi-functional decontamination paste to clean the black edges of the tiles, and then use a dry towel to wipe the gaps and brick surfaces to ensure that the construction environment is clean and dry. S02 waxes around the gap; Dip a sponge in a proper amount of caulking wax and apply it on the tile surfaces on both sides of the gap to facilitate the removal of excess material later; S03 inject the caulking agent into the gap; First, apply 40cm of caulking agent to avoid uneven mixing of caulking agent A and agent B. Then, fit the glue nozzle to the gap. The angle between the glue gun and the gap should be greater than 60 degrees. Apply glue at a constant speed in an upright position. Make sure the glue gun tip fully injects the caulking agent into the gap and fills it up. S04 press seam; After the glue is applied, start pressing the glue. First, use a metal groove knife to test the pressure to confirm the fluidity and adhesion of the caulking agent. Then maintain a stable force and drag the silicone rod at a constant speed to complete the pressing. S05 clean up the remaining materials; After the caulking agent solidifies, use a spatula to remove the remaining material to complete the caulking operation.

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