Composite material based on modified inorganic powder and application thereof

Abstract

The invention discloses a composite material based on modified inorganic powder and application thereof, relates to the field of composite materials, and aims at solving the problems that a traditional material is insufficient in strength, poor in heat resistance and poor in corrosion resistance in the using process, and the filler ratio and the processing technology are not optimized. The cross-border data management system comprises a polymer matrix, a modified inorganic powder filler, a cross-border data management module and a functional additive, the polymer matrix comprises polyurethane, polyamide, epoxy resin and polyimide, and the modified inorganic powder filler comprises modified nano powder, modified carbon fibers, modified silicate and modified aluminum oxide. The preparation auxiliary agents comprise a surfactant, a thickening agent, a dispersing agent, a cross-linking agent and a solvent, and the functional additives comprise a plasticizer, an oxidation inhibitor, a flame retardant and an antiviral agent.The performance and stability of the composite material can be improved, and the processability and physicochemical properties of the composite material can be improved.

Description

Technical Field

[0001] This invention relates to the field of composite materials, and more specifically to a composite material based on modified inorganic powder and its applications. Background Technology

[0002] Composite materials are materials composed of two or more materials, possessing excellent mechanical, electrical, and thermal properties. With the continuous development of science and technology and people's pursuit of superior material performance, composite materials have been widely used in various fields. However, traditional organic composite materials have shortcomings in certain special environments, such as wear resistance, high-temperature resistance, and radiation resistance. Therefore, researchers have begun to study novel modified inorganic powder composite materials.

[0003] One existing composite material based on modified inorganic powder is a modified calcium silicate powder composite. However, the small particle size of the modified calcium silicate powder makes it prone to problems such as dusting and clogging during processing, increasing processing difficulty. The low hardness of the modified calcium silicate powder also leads to wear and tear, resulting in poor wear resistance of the composite material. Furthermore, the low tensile strength of the modified calcium silicate powder results in low tensile strength for the composite material. Moreover, the existing modified inorganic powder-based composite materials often suffer from suboptimal filler ratios and processing techniques, frequently resulting in fillers not reaching their optimal state, thus affecting the composite's performance. The limited quantity of polymer matrix used cannot meet the requirements of different fields and applications. The limited variety and imperfections of preparation auxiliaries cannot fully regulate and improve the composite's performance. The lack of functional additives means that the physicochemical properties of the composite material cannot meet specific application requirements.

[0004] Therefore, this invention discloses a composite material based on modified inorganic powder and its application, which can solve the problems of complex composite material preparation process, low hardness and strength, non-optimized filler ratio and processing technology, and poor corrosion resistance, electro-oxidation resistance, water resistance and flame retardancy. At the same time, by adding modified inorganic powder filler and adjusting functional additives, the performance and stability of the composite material can be improved, and its processing performance and physicochemical properties can be increased. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention discloses a composite material based on modified inorganic powder and its applications. The composite material, prepared through mixing, processing, and molding, exhibits high strength, high stiffness, corrosion resistance, wear resistance, flame retardancy, resistance to electro-oxidation, and water resistance. Modified inorganic powder fillers are used, and surface modification treatment improves the filler's dispersibility, surface wettability, chemical stability, and wear resistance, thereby enhancing the composite material's performance. An optimal mixing algorithm is employed to calculate the optimal filler addition ratio to maximize the composite material's performance. The use of a combination of various polymer matrices—polyurethane, polyamide, epoxy resin, and polyimide—improves the composite material's applicability and performance. Performance: The use of various preparation aids such as surfactants, thickeners, dispersants, crosslinking agents, and solvents improves the viscosity, stability, solubility, and interaction with the matrix and fillers of the composite material. The addition of functional additives, such as plasticizers, oxidation inhibitors, and flame retardants, further enhances the processing performance and physicochemical properties of the composite material, making it more suitable for use in different fields and environments. Selecting solid-phase mixing or wet synthesis methods effectively optimizes the preparation process of the composite material to obtain products with stability and consistency. The use of carbon dioxide as an antiviral agent inhibits the growth and reproduction of viruses, thereby improving the safety, antiviral properties, and environmental friendliness of the composite material.

[0006] The present invention adopts the following technical solution: A composite material based on modified inorganic powder, the composite material comprising: A polymer matrix is ​​used to transfer loads and protect fillers. The composite material uses a high-molecular polymer as the matrix to improve its corrosion resistance, electro-oxidation resistance, water resistance, and flame retardancy. The polymer matrix includes polyurethane, polyamide, epoxy resin, and polyimide. The content of polyurethane accounts for 29%-35% of the raw material composition, the content of polyamide accounts for 20%-23% of the raw material composition, the content of epoxy resin accounts for 45%-48% of the raw material composition, and the content of polyimide accounts for 2%-6% of the raw material composition. Modified inorganic powder fillers are used to improve the performance of the composite material. The modified inorganic powder fillers include modified nanopowders, modified carbon fibers, modified silicates, and modified alumina. The optimal addition ratio of the modified nanopowders, modified carbon fibers, modified silicates, and modified alumina is calculated using an optimal ratio mixing algorithm to maximize the performance of the composite material. The modified nanopowders and modified carbon fibers undergo high-temperature heat treatment to form carboxyl and anhydride chemical functional groups, thereby increasing surface roughness and stability. The modified silicates and modified alumina are modified with surface coupling agents to change surface properties, thereby improving the dispersibility, surface wettability, chemical stability, and wear resistance of the modified inorganic powder fillers. The chemical reaction formula for the modification of the modified silicate is as follows: (1) In formula (1), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; The modifying chemical reaction formula for the modified alumina is as follows: (2) In formula (2), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; An auxiliary agent is prepared to adjust the viscosity, stability, solubility, and enhance the interaction between the composite material and the matrix and filler. The auxiliary agent includes a surfactant, a thickener, a dispersant, a crosslinking agent, and a solvent. The surfactant accounts for 0.17%-0.57% of the raw material mass, the thickener accounts for 1.2%-4.5% of the raw material mass, the dispersant accounts for 0.15%-0.20% of the raw material mass, the crosslinking agent accounts for 3.6%-5.6% of the raw material mass, and the balance is a solvent, namely water. Functional additives are used to enhance the processing performance and physicochemical properties of the composite material. The functional additives include plasticizers, oxidation inhibitors, flame retardants, and antiviral agents. The raw material mass percentage of the plasticizer is 0.02%-0.025%, the raw material mass percentage of the oxidation inhibitor is 0.03%-0.04%, the raw material mass percentage of the flame retardant is 0.03%-0.05%, and the raw material mass percentage of the antiviral agent is 0.1%-1%.

[0007] As a further technical solution of the present invention, the optimal mixing algorithm calculates the optimal addition ratio of the modified inorganic powder filler using a partial autocorrelation coefficient function to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The partial autocorrelation coefficient function determines the optimal addition ratio of various fillers by calculating the correlation between the addition ratio of the modified inorganic powder filler and the properties of the modified inorganic powder filler. The sample set of addition ratios for the modified inorganic powder filler is as follows: , This indicates the first sample to be added in proportion. This indicates the second sample to be added in proportion. This indicates the i-th sample with the added proportion, 1 , Let represent the nth addition ratio sample, where n is the total number of addition ratio samples. Normalization is performed on each sample in the sample set C to eliminate dimensional differences caused by different filler addition ratios. The normalization expression is: (3) In formula (3), Add the proportional sample normalization result to the i-th sample. This represents the maximum sample value of the addition ratio of the modified inorganic powder filler. This represents the minimum sample value of the addition ratio of the modified inorganic powder filler. To add a proportional sample normalization factor; measure the performance index of the composite material corresponding to the added proportional samples respectively, and calculate the relevant empirical entropy Y of the added proportion. The output function formula is: (4) In formula (4), Add proportion The relevant empirical entropy, The performance index of the composite material corresponding to the i-th addition ratio sample is... The correlation function between the added proportion samples and the corresponding performance indicators of the composite material is defined. The optimal combination of added proportions is obtained by minimizing the relevant empirical entropy to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The formula for minimizing the relevant empirical entropy is: (5) In formula (5), To minimize relevant experience, Add a limiting filter function for proportional samples.

[0008] As a further technical solution of the present invention, the modified inorganic powder filler comprises, by mass percentage, 0.03-0.04% modified nanopowder, 0.20-0.25% modified carbon fiber, 0.3-0.5% modified silicate, and 3.6-4.2% modified alumina.

[0009] As a further technical solution of the present invention, the composite material comprises, by weight, 25-35 parts of the polymer matrix, 2.5-70 parts of the modified inorganic powder filler, 1.096-8.93 parts of the preparation auxiliary agent, and 1.5-2.5 parts of the functional additive.

[0010] As a further technical solution of the present invention, the surfactant includes fluorocarbonate, octylphenol polyoxyethylene ether and sodium dodecylbenzene sulfonate, the thickener includes ethyl cellulose, polyacrylic acid and modified bentonite, the dispersant includes sodium hydroxide, ammonium sulfate and potassium chloride, and the crosslinking agent includes dimethacrylamide, pentaerythritol acrylate and stearate.

[0011] As a further technical solution of the present invention, the plasticizer includes diethylene glycol esters and octyl esters; the oxidation inhibitor includes phenolic oxidation inhibitors, phenolic oxidation inhibitors, and thiol oxidation inhibitors; the flame retardant includes nitrogen-based flame retardants and phosphorus-based flame retardants; and the antiviral agent uses titanium dioxide to inhibit the growth and reproduction of viruses. The titanium dioxide destroys the cell walls and membranes of viruses through photocatalysis, thereby inhibiting the growth and reproduction of bacteria and viruses, so as to improve the safety, antiviral properties, and environmental friendliness of the composite material.

[0012] As a further technical solution of the present invention, an application of a composite material based on modified inorganic powder is provided, the application of which includes the following steps: Step 1: Select a high-performance polymer as the matrix. The polymer matrix changes its surface chemical properties through chemical bonding to improve the compatibility and adhesion between the polymer matrix and the modified inorganic powder filler. Step 2: Select nanoparticles, carbon fibers, silicates and alumina inorganic powder as reinforcing agents, and change the surface properties through pulverization, heat treatment and surface coupling agents to form the modified inorganic powder filler, so as to improve the dispersibility and reinforcing effect of the inorganic powder. Step 3: The modified inorganic powder filler is uniformly dispersed in the polymer matrix through heating, stirring, mixing and film formation processes to form a matrix-filler mixture; Step 4: Add the preparation aids and the functional additives to the matrix filler mixture to adjust the rheology and processability of the composite material, and process the matrix filler mixture by extrusion, injection molding and pressing to generate composite material molded parts; Step 5: The composite material based on modified inorganic powder is obtained after drying and curing.

[0013] As a further technical solution of the present invention, the chemical reaction in step one, in which the polymer matrix changes its surface chemical properties through chemical bonding, includes: (1) Bonding reaction between polyurethane and methyl acrylate: (6) In formula (6), It is methyl acrylate. It is polyurethane. It is a polyurethane resin. The polyurethane, which is methanol, achieves strong bonding and composite between different materials by obtaining carbon double bonds in the methyl acrylate; (2) Bonding reaction of polyamide with 1,2-ethylenediamine and dicarboxylic acids: (7) In formula (7), It is 1,2-ethylenediamine. It is polyamide. It is a polyamide polymer, in which the units of the polyamide polymer are connected by affinity to form hydrophilic hydroxyl groups on the surface, thereby improving the corrosion resistance and adhesion of the polymer matrix; (3) Bonding reaction between epoxy resin and silane: (8) In formula (8), It is a silane. It is made of epoxy resin. The epoxy resin molecule improves the mechanical properties, chemical stability and heat resistance of the epoxy resin through the siloxane bond between the epoxy group and the silane group, and improves the adhesive strength and structural stability of the epoxy resin through the silane group. (4) Bonding reaction between polyimide and sodium octadecyl sulfate: (9) In formula (9), It is polyimide. It is sodium octadecyl sulfate. The polyimide has a molecular structure, and the polyimide improves its surface hydrophilicity, chemical compatibility, adhesion, corrosion resistance, mechanical properties and thermal stability by forming a hydrophilic sulfonate-based film on its surface.

[0014] As a further technical solution of the present invention, the polymer matrix and the modified inorganic powder filler are mixed by solid-phase mixing or wet synthesis to improve the strength, toughness, corrosion resistance and high temperature resistance of the material. The mixing ratio of the polymer matrix and the modified inorganic powder filler is 1:0.1-1:2.

[0015] Positive and beneficial effects: This invention discloses a composite material based on modified inorganic powder and its applications. The composite material, prepared through mixing, processing, and molding, exhibits high strength, high stiffness, corrosion resistance, wear resistance, flame retardancy, resistance to electro-oxidation, and water resistance. Modified inorganic powder fillers are used, and surface modification treatment improves the filler's dispersibility, surface wettability, chemical stability, and wear resistance, thereby enhancing the composite material's performance. An optimal mixing algorithm is employed to calculate the optimal filler addition ratio to maximize the composite material's performance. The use of a combination of various polymer matrices—polyurethane, polyamide, epoxy resin, and polyimide—improves the composite material's applicability and performance. Surfactants, thickeners, dispersants, crosslinking agents, and solvents, among other preparation aids, improve the viscosity, stability, solubility, and interaction with the matrix and fillers of the composite material. The addition of functional additives, such as plasticizers, oxidation inhibitors, and flame retardants, further enhances the processing performance and physicochemical properties of the composite material, making it more suitable for use in various fields and environments. Selecting solid-phase mixing or wet synthesis methods effectively optimizes the composite material preparation process to obtain products with stability and consistency. Using carbon dioxide as an antiviral agent inhibits viral growth and reproduction, thereby improving the safety, antiviral properties, and environmental friendliness of the composite material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the component weight parts of a composite material based on modified inorganic powder according to the present invention; Figure 2 This is a schematic diagram showing the content percentage of the polymer matrix in a composite material based on modified inorganic powder according to the present invention; Figure 3 This is a schematic diagram showing the content percentage of modified inorganic powder filler in a composite material based on modified inorganic powder according to the present invention. Figure 4 A schematic diagram showing the content percentage of preparation auxiliary agents in a composite material based on modified inorganic powder according to the present invention; Figure 5 A schematic diagram showing the content ratio of functional additives in a composite material based on modified inorganic powder according to the present invention; Figure 6 This invention provides a schematic diagram of the application process of a composite material based on modified inorganic powder. Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0018] A composite material based on modified inorganic powder, the composite material comprising: A polymer matrix is ​​used to transfer loads and protect fillers. The composite material uses a high-molecular polymer as the matrix to improve its corrosion resistance, electro-oxidation resistance, water resistance, and flame retardancy. The polymer matrix includes polyurethane, polyamide, epoxy resin, and polyimide. The content of polyurethane accounts for 29%-35% of the raw material composition, the content of polyamide accounts for 20%-23% of the raw material composition, the content of epoxy resin accounts for 45%-48% of the raw material composition, and the content of polyimide accounts for 2%-6% of the raw material composition. Modified inorganic powder fillers are used to improve the performance of the composite material. The modified inorganic powder fillers include modified nanopowders, modified carbon fibers, modified silicates, and modified alumina. The optimal addition ratio of the modified nanopowders, modified carbon fibers, modified silicates, and modified alumina is calculated using an optimal ratio mixing algorithm to maximize the performance of the composite material. The modified nanopowders and modified carbon fibers undergo high-temperature heat treatment to form carboxyl and anhydride chemical functional groups, thereby increasing surface roughness and stability. The modified silicates and modified alumina are modified with surface coupling agents to change surface properties, thereby improving the dispersibility, surface wettability, chemical stability, and wear resistance of the modified inorganic powder fillers. The chemical reaction formula for the modification of the modified silicate is as follows: (1) In formula (1), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; The modifying chemical reaction formula for the modified alumina is as follows: (2) In formula (2), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; An auxiliary agent is prepared to adjust the viscosity, stability, solubility, and enhance the interaction between the composite material and the matrix and filler. The auxiliary agent includes a surfactant, a thickener, a dispersant, a crosslinking agent, and a solvent. The surfactant accounts for 0.17%-0.57% of the raw material mass, the thickener accounts for 1.2%-4.5% of the raw material mass, the dispersant accounts for 0.15%-0.20% of the raw material mass, the crosslinking agent accounts for 3.6%-5.6% of the raw material mass, and the balance is a solvent, namely water. Functional additives are used to enhance the processing performance and physicochemical properties of the composite material. The functional additives include plasticizers, oxidation inhibitors, flame retardants, and antiviral agents. The raw material mass percentage of the plasticizer is 0.02%-0.025%, the raw material mass percentage of the oxidation inhibitor is 0.03%-0.04%, the raw material mass percentage of the flame retardant is 0.03%-0.05%, and the raw material mass percentage of the antiviral agent is 0.1%-1%.

[0019] In a specific embodiment, inorganic materials such as soil (e.g., construction waste soil, mountain soil, etc.), stone powder, slag, tailings powder, ceramic slag powder, quartz sand, and fly ash are used. After pretreatment, drying, grinding, and uniform mixing according to the formula, they are modified with surfactants to produce powder or granules, thus obtaining modified inorganic powder. Using modified inorganic powder as the main raw material, high molecular polymers are added, and the mixture is formed, cross-linked, heated, and compounded to produce a flexible, recyclable, and lightweight material with a thickness of 2mm to 10mm that can represent various effects such as brick, wood, stone, leather, ceramics, textiles, and reliefs. This material is referred to as MCM. This invention relates to a modified inorganic powder composite building facade 3D sheet made from a composite material based on modified inorganic powder. The modified inorganic powder composite building facade 3D sheet is then used to fabricate ceramic tiles for type testing. The type testing includes rating the aging of paint and varnish coatings, ceramic tile testing, determination of the surface abrasion resistance of glazed tiles, limits on radionuclides in building materials, stain resistance testing of building coatings, natural stone surface testing, volume density, true density, true porosity, and water absorption testing, accelerated aging testing of building materials under artificial climate, limits on harmful substances in PVC roll flooring for interior decoration, construction quality acceptance of building flooring projects, construction quality acceptance of building decoration projects, and determination of the freeze-thaw cycle resistance of building coatings. This invention uses random sampling for testing, with a sampling base of 4680 m². 2 The sampling size was 2.96m. 2 The test results are shown in Table 1.

[0020] Table 1 Quality Inspection Report

[0021] As shown in Table 1, the modified inorganic powder composite building veneer 3D sheet made from the composite material based on modified inorganic powder of the present invention has passed the quality inspection and has high strength, high anti-slip properties, high corrosion resistance and high water absorption.

[0022] Example 2 A composite material based on modified inorganic powder, the composite material comprising: A polymer matrix is ​​used to transfer loads and protect fillers. The composite material uses a high-molecular polymer as the matrix to improve its corrosion resistance, electro-oxidation resistance, water resistance, and flame retardancy. The polymer matrix includes polyurethane, polyamide, epoxy resin, and polyimide. The polyurethane content accounts for 29% of the raw material composition, the polyamide content accounts for 20% of the raw material composition, the epoxy resin content accounts for 45% of the raw material composition, and the polyimide content accounts for 2% of the raw material composition. Modified inorganic powder fillers are used to improve the performance of the composite material. The modified inorganic powder fillers include modified nanopowders, modified carbon fibers, modified silicates, and modified alumina. The optimal addition ratio of the modified nanopowders, modified carbon fibers, modified silicates, and modified alumina is calculated using an optimal ratio mixing algorithm to maximize the performance of the composite material. The modified nanopowders and modified carbon fibers undergo high-temperature heat treatment to form carboxyl and anhydride chemical functional groups, thereby increasing surface roughness and stability. The modified silicates and modified alumina are modified with surface coupling agents to change surface properties, thereby improving the dispersibility, surface wettability, chemical stability, and wear resistance of the modified inorganic powder fillers. The chemical reaction formula for the modification of the modified silicate is as follows: (1) In formula (1), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; The modifying chemical reaction formula for the modified alumina is as follows: (2) In formula (2), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; An auxiliary agent is prepared to adjust the viscosity, stability, solubility, and enhance the interaction between the composite material and the matrix and filler. The auxiliary agent includes a surfactant, a thickener, a dispersant, a crosslinking agent, and a solvent. The surfactant accounts for 0.17% of the raw material mass, the thickener accounts for 1.2% of the raw material mass, the dispersant accounts for 0.15% of the raw material mass, the crosslinking agent accounts for 3.6% of the raw material mass, and the remainder is a solvent, which is water. Functional additives are used to increase the processing performance and physicochemical properties of the composite material. The functional additives include plasticizers, oxidation inhibitors, flame retardants, and antiviral agents. The raw material mass percentage of the plasticizer is 0.02%, the raw material mass percentage of the oxidation inhibitor is 0.03%, the raw material mass percentage of the flame retardant is 0.03%, and the raw material mass percentage of the antiviral agent is 0.1%.

[0023] Based on the above formula, the following examples are now provided. Using a sampling method, more than 5 boxes of products are randomly selected from each batch, and 5 pieces are randomly selected from each box. The samples are either opened on-site for visual inspection or sealed and sent for testing. The samples are placed under standard test conditions of (23±2)℃ air temperature and (50±10)% relative humidity for 24 hours to adjust their condition, and then tested under these conditions. The test specimens are taken from an area greater than 10mm from the edge of the product. The water absorption of the specimens is tested by immersing them in water for 24 hours. The specimens are then subjected to 15 cycles, each cycle consisting of immersion in (23±2)℃ water for 18 hours, freezing at (-30±2)℃ for 3 hours, and drying at (50±2)℃ for 3 hours. The presence of abnormal phenomena such as powdering, cracking, or peeling is observed, and the freeze resistance and heat resistance are tested. Three sets of examples of the present invention are compared, and the comparison is shown in Table 2.

[0024] Table 2 Comparison Diagram

[0025] Through the above embodiments, the composite material of the modified inorganic powder of the present invention has high strength, high anti-slip properties, high corrosion resistance and high water absorption, and has outstanding technical effects and significant technological progress.

[0026] Example 3 A composite material based on modified inorganic powder, the composite material comprising: A polymer matrix is ​​used to transfer loads and protect fillers. The composite material uses a high-molecular polymer as the matrix to improve its corrosion resistance, electro-oxidation resistance, water resistance, and flame retardancy. The polymer matrix includes polyurethane, polyamide, epoxy resin, and polyimide. The polyurethane content accounts for 35% of the raw material composition, the polyamide content accounts for 23% of the raw material composition, the epoxy resin content accounts for 48% of the raw material composition, and the polyimide content accounts for 6% of the raw material composition. Modified inorganic powder fillers are used to improve the performance of the composite material. The modified inorganic powder fillers include modified nanopowders, modified carbon fibers, modified silicates, and modified alumina. The optimal addition ratio of the modified nanopowders, modified carbon fibers, modified silicates, and modified alumina is calculated using an optimal ratio mixing algorithm to maximize the performance of the composite material. The modified nanopowders and modified carbon fibers undergo high-temperature heat treatment to form carboxyl and anhydride chemical functional groups, thereby increasing surface roughness and stability. The modified silicates and modified alumina are modified with surface coupling agents to change surface properties, thereby improving the dispersibility, surface wettability, chemical stability, and wear resistance of the modified inorganic powder fillers. The chemical reaction formula for the modification of the modified silicate is as follows: (1) In formula (1), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; The modifying chemical reaction formula for the modified alumina is as follows: (2) In formula (2), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; An auxiliary agent is prepared to adjust the viscosity, stability, solubility, and enhance the interaction between the composite material and the matrix and filler. The auxiliary agent includes a surfactant, a thickener, a dispersant, a crosslinking agent, and a solvent. The surfactant accounts for 0.57% of the raw material mass, the thickener accounts for 4.5% of the raw material mass, the dispersant accounts for 0.20% of the raw material mass, the crosslinking agent accounts for 5.6% of the raw material mass, and the remainder is a solvent, which is water. Functional additives are used to increase the processing performance and physicochemical properties of the composite material. The functional additives include plasticizers, oxidation inhibitors, flame retardants, and antiviral agents. The raw material mass percentage of the plasticizer is 0.025%, the raw material mass percentage of the oxidation inhibitor is 0.04%, the raw material mass percentage of the flame retardant is 0.05%, and the raw material mass percentage of the antiviral agent is 1%.

[0027] Based on the above formula, the following examples are now provided. Using a sampling method, more than 5 boxes of products are randomly selected from each batch, and 5 pieces are randomly selected from each box. The samples are either opened on-site for visual inspection or sealed and sent for testing. The samples are placed under standard test conditions of (23±2)℃ air temperature and (50±10)% relative humidity for 24 hours to adjust their condition, and then tested under these conditions. The test specimens are taken from an area greater than 10mm from the edge of the product. The water absorption of the specimens is tested by immersing them in water for 24 hours. The specimens are then subjected to 15 cycles, each cycle consisting of immersion in (23±2)℃ water for 18 hours, freezing at (-30±2)℃ for 3 hours, and drying at (50±2)℃ for 3 hours. The presence of abnormal phenomena such as powdering, cracking, or peeling is observed, and the freeze resistance and heat resistance are tested. Three sets of examples of the present invention are compared, and the comparison is shown in Table 3.

[0028] Table 3 Comparison Diagram

[0029] Through the above embodiments, the composite material of the modified inorganic powder of the present invention has high strength, high anti-slip properties, high corrosion resistance and high water absorption, and has outstanding technical effects and significant technological progress.

[0030] Example 4 In the above embodiments, the optimal mixing algorithm calculates the optimal addition ratio of the modified inorganic powder filler using a partial autocorrelation coefficient function to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The partial autocorrelation coefficient function determines the optimal addition ratio of various fillers by calculating the correlation between the addition ratio of the modified inorganic powder filler and its properties. The sample set of addition ratios for the modified inorganic powder filler is as follows: , This indicates the first sample to be added in proportion. This indicates the second sample to be added in proportion. This indicates the i-th sample with the added proportion, 1 , Let represent the nth addition ratio sample, where n is the total number of addition ratio samples. Normalization is performed on each sample in the sample set C to eliminate dimensional differences caused by different filler addition ratios. The normalization expression is: (3) In formula (3), Add the proportional sample normalization result to the i-th sample. This represents the maximum sample value of the addition ratio of the modified inorganic powder filler. This represents the minimum sample value of the addition ratio of the modified inorganic powder filler. To add a proportional sample normalization factor; measure the performance index of the composite material corresponding to the added proportional samples respectively, and calculate the relevant empirical entropy Y of the added proportion. The output function formula is: (4) In formula (4), Add proportion The relevant empirical entropy, The performance index of the composite material corresponding to the i-th addition ratio sample is... The correlation function between the added proportion samples and the corresponding performance indicators of the composite material is defined. The optimal combination of added proportions is obtained by minimizing the relevant empirical entropy to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The formula for minimizing the relevant empirical entropy is: (5) In formula (5), To minimize relevant experience, Add a limiting filter function for proportional samples.

[0031] In a specific embodiment, the partial autocorrelation coefficient (PAC) function is a method used to describe the correlation between variables. It can be used to illustrate the correlation between a variable and other variables after a certain lag. In the optimal proportion mixing algorithm, the PAC function is applied to calculate the correlation between the properties of the resulting mixed material and the modified inorganic powder filler with different addition ratios, thereby determining the optimal addition ratio of various fillers. For example, when calculating the effect of the addition ratio of modified nanopowder on the strength improvement of the mixed material, the PAC coefficient between the addition ratio of modified nanopowder and the strength index of the mixed material can be calculated to determine the contribution of different addition amounts of modified nanopowder to the strength improvement and to find the optimal addition ratio. Through such a correlation-based algorithm, the optimal addition ratio can be quickly determined, thereby improving the comprehensive performance of the mixed material, including strength, toughness, corrosion resistance, and high temperature resistance. At the same time, since this algorithm can quickly process large amounts of data and correct for problems such as missing variables, it can reduce experimental costs and time costs, and improve research efficiency. The hardware environment for the optimal proportion mixing algorithm mainly includes the following: Computing devices: The optimal ratio mixing algorithm needs to run on computing devices, including personal computers, servers or cloud platforms.

[0032] Hardware resources: The algorithm requires sufficient memory and computing power to process large amounts of data and complex computational tasks.

[0033] Data acquisition equipment: Data on modified inorganic powder fillers can be acquired using sensors, experimental instruments, and other equipment.

[0034] Storage devices: These are used to store and manage data, including hard drives, databases, and other devices used to store raw data and algorithm results.

[0035] Network devices: Used for data transmission and communication, including network connections, routers, and other devices, to ensure that algorithms work together across different devices.

[0036] Visualization devices: Devices that visualize the results of algorithm execution, such as monitors and projectors, to allow users to observe and analyze the results intuitively.

[0037] To verify the usability and effectiveness of the algorithm, experimental tests were conducted in a test environment. The experimental computer ran Windows 10. The algorithm was simulated using the aforementioned hardware configuration, and an empirical formula was used for comparison with traditional algorithms. Tasks involving 10000MB were calculated, and the calculation speed and accuracy were compared, as shown in Table 4. Table 4 Data Calculation Results

[0038] Example 5 In the above embodiments, the modified inorganic powder filler comprises 0.03% modified nanopowder, 0.20% modified carbon fiber, 0.3% modified silicate, and 3.6% modified alumina by mass percentage.

[0039] In the above embodiments, the composite material comprises 25 parts by weight of the polymer matrix, 2.5 parts of the modified inorganic powder filler, 1.096 parts of the preparation aid, and 1.5 parts of the functional additive.

[0040] In specific embodiments, modified carbon fibers and silicate fillers possess high strength and high toughness. Appropriate addition can significantly improve the strength and toughness of the composite material, thereby enhancing its performance in various applications. Modified alumina fillers exhibit excellent corrosion resistance and high-temperature resistance; their addition can improve the durability and stability of the composite material under harsh conditions, extending its service life. Modified nanoparticles, as a type of filler, can effectively improve the processing performance of the composite material, such as flowability, plasticity, and ease of processing, making the material easier to process and apply. The addition of preparation aids and functional additives can optimize the composite material preparation process, making material preparation simpler and more efficient. Simultaneously, functional additives can also adjust specific properties of the material, such as color, surface gloss, and cytotoxicity, to meet the application needs of different fields.

[0041] Based on the above formula, the following examples are now described. Using a sampling method, more than 5 boxes of products are randomly selected from each batch, and 5 pieces are randomly selected from each box. The samples are opened on-site for visual inspection or sealed and sent for testing. The samples are immersed in 3% hydrochloric acid and 3% sodium hydroxide solutions for 12 days respectively. After the specified time, the sample surface is rinsed with clean water, and the surface is immediately observed for any abnormalities such as cracking, delamination, or obvious discoloration. The sample and an arc-shaped mold (bending diameter agreed upon by both parties) are placed under standard test conditions for 24 hours. Then, holding both ends of the sample, the flat side of the sample is bent tightly against the arc surface, and the presence of cracks or breaks at the bending point is recorded. Changes within 10mm of the sample edge are not considered. Three sets of examples of the present invention are compared, as shown in Table 5.

[0042] Table 5 Comparison Diagram

[0043] Through the above embodiments, the composite material of the modified inorganic powder of the present invention has high strength, high toughness, high corrosion resistance and high temperature resistance, and improves the processing performance of the composite material, which has outstanding technical effects and significant technical progress.

[0044] Example 6 In the above embodiments, the modified inorganic powder filler comprises 0.04% modified nanopowder, 0.25% modified carbon fiber, 0.5% modified silicate, and 4.2% modified alumina by mass percentage.

[0045] In the above embodiments, the composite material comprises 35 parts by weight of the polymer matrix, 70 parts of the modified inorganic powder filler, 8.93 parts of the preparation aid, and 2.5 parts of the functional additive.

[0046] In specific embodiments, modified carbon fibers and silicate fillers possess high strength and high toughness. Appropriate addition can significantly improve the strength and toughness of the composite material, thereby enhancing its performance in various applications. Modified alumina fillers exhibit excellent corrosion resistance and high-temperature resistance; their addition can improve the durability and stability of the composite material under harsh conditions, extending its service life. Modified nanoparticles, as a type of filler, can effectively improve the processing performance of the composite material, such as flowability, plasticity, and ease of processing, making the material easier to process and apply. The addition of preparation aids and functional additives can optimize the composite material preparation process, making material preparation simpler and more efficient. Simultaneously, functional additives can also adjust specific properties of the material, such as color, surface gloss, and cytotoxicity, to meet the application needs of different fields.

[0047] Based on the above formula, the following examples are now described. Using a sampling method, more than 5 boxes of products are randomly selected from each batch, and 5 pieces are randomly selected from each box. The samples are opened on-site for visual inspection or sealed and sent for testing. The samples are immersed in 3% hydrochloric acid and 3% sodium hydroxide solutions for 12 days respectively. After the specified time, the sample surface is rinsed with clean water, and the surface is immediately observed for any abnormalities such as cracking, delamination, or obvious discoloration. The sample and an arc-shaped mold (bending diameter agreed upon by both parties) are placed under standard test conditions for 24 hours. Then, the two ends of the sample are held, and the flat side of the sample is bent tightly against the arc surface. The presence of cracks or breaks at the bending point is recorded. Changes within 10mm of the sample edge are not considered. Three sets of examples of the present invention are compared, as shown in Table 6.

[0048] Table 6 Comparison Diagram

[0049] Through the above embodiments, the composite material of the modified inorganic powder of the present invention has high strength, high toughness, high corrosion resistance and high temperature resistance, and improves the processing performance of the composite material, which has outstanding technical effects and significant technical progress.

[0050] In the above embodiments, the surfactant includes fluorocarbonate, octylphenol polyoxyethylene ether and sodium dodecylbenzene sulfonate, the thickener includes ethyl cellulose, polyacrylic acid and modified bentonite, the dispersant includes sodium hydroxide, ammonium sulfate and potassium chloride, and the crosslinking agent includes dimethacrylamide, pentaerythritol acrylate and stearate.

[0051] In the above embodiments, the plasticizer includes diethylene glycol esters and octyl esters; the oxidation inhibitor includes phenolic oxidation inhibitors, phenolic oxidation inhibitors, and thiol oxidation inhibitors; the flame retardant includes nitrogen-based flame retardants and phosphorus-based flame retardants; and the antiviral agent uses titanium dioxide to inhibit the growth and reproduction of viruses. The titanium dioxide destroys the cell walls and membranes of viruses through photocatalysis, thereby inhibiting the growth and reproduction of bacteria and viruses and improving the safety, antiviral properties, and environmental friendliness of the composite material.

[0052] In a specific embodiment, titanium dioxide is a material with photocatalytic antibacterial properties, which can effectively inhibit the growth and reproduction of bacteria and viruses. Its mechanism involves utilizing photocatalysis to activate oxygen molecules into highly reactive oxygen free radicals, thereby oxidizing viruses, destroying their cell walls and membranes, and inhibiting their growth and reproduction. Titanium dioxide possesses strong photocatalytic activity and stability, and is simple, safe, and reliable to operate; therefore, it is widely used in antibacterial and antifouling applications, air purification, and other fields such as food, medicine, textiles, and construction.

[0053] In the composite material described in this article, titanium dioxide is used as an antiviral agent, which can effectively enhance the antibacterial and antiviral properties of the composite material. Titanium dioxide is usually added to the preparation process of the composite material and uniformly dispersed in the matrix of the composite material. The composite material is made into ceramic bricks for antiviral testing. In this experiment, 25 ceramic bricks were used to test the antiviral activity according to the ISO 21702 standard. The coronavirus HCoV-339E strain and Huh-7 cells were used as test objects. The test equipment included a level 2 biosafety cabinet, CO2 incubator, inverted microscope, constant temperature and humidity incubator, low temperature refrigerated centrifuge, high temperature and high pressure sterilizer, water bath, etc. The test conditions were an ambient temperature of 20~24℃, an ambient humidity of 60-64%RH, and a sample size of (502)mm x (50+2)mm. The antiviral activity was calculated by formula (10): R=(Ut-U0)-(At-U0)=Ut-At (10) In formula (10), R is the antiviral rate, Uo is the logarithmic value of the average viral titer recovered from the three untreated samples at time 0, Ut is the logarithmic value of the average viral titer recovered from the three untreated samples after 24 hours, and At is the logarithmic value of the average viral titer recovered from the three treated samples after 24 hours. The antiviral test data of the object surface are shown in Table 7 to prove the antiviral properties of the composite material.

[0054] Table 7. Antiviral test data for object surfaces

[0055] In the above embodiments, the application of a composite material based on modified inorganic powder includes the following steps: Step 1: Select a high-performance polymer as the matrix. The polymer matrix changes its surface chemical properties through chemical bonding to improve the compatibility and adhesion between the polymer matrix and the modified inorganic powder filler. Step 2: Select nanoparticles, carbon fibers, silicates and alumina inorganic powder as reinforcing agents, and change the surface properties through pulverization, heat treatment and surface coupling agents to form the modified inorganic powder filler, so as to improve the dispersibility and reinforcing effect of the inorganic powder. Step 3: The modified inorganic powder filler is uniformly dispersed in the polymer matrix through heating, stirring, mixing and film formation processes to form a matrix-filler mixture; Step 4: Add the preparation aids and the functional additives to the matrix filler mixture to adjust the rheology and processability of the composite material, and process the matrix filler mixture by extrusion, injection molding and pressing to generate composite material molded parts; Step 5: The composite material based on modified inorganic powder is obtained after drying and curing.

[0056] In the above embodiments, the chemical reaction in step one, in which the polymer matrix changes its surface chemical properties through chemical bonding, includes: (1) Bonding reaction between polyurethane and methyl acrylate: (6) In formula (6), It is methyl acrylate. It is polyurethane. It is a polyurethane resin. The polyurethane, which is methanol, achieves strong bonding and composite between different materials by obtaining carbon double bonds in the methyl acrylate; (2) Bonding reaction of polyamide with 1,2-ethylenediamine and dicarboxylic acids: (7) In formula (7), It is 1,2-ethylenediamine. It is polyamide. It is a polyamide polymer, in which the units of the polyamide polymer are connected by affinity to form hydrophilic hydroxyl groups on the surface, thereby improving the corrosion resistance and adhesion of the polymer matrix; (3) Bonding reaction between epoxy resin and silane: (8) In formula (8), It is a silane. It is made of epoxy resin. The epoxy resin molecule improves the mechanical properties, chemical stability and heat resistance of the epoxy resin through the siloxane bond between the epoxy group and the silane group, and improves the adhesive strength and structural stability of the epoxy resin through the silane group. The bonding reaction between polyimide and sodium octadecyl sulfate: (9) In formula (9), It is polyimide. It is sodium octadecyl sulfate. The polyimide has a molecular structure, and the polyimide improves its surface hydrophilicity, chemical compatibility, adhesion, corrosion resistance, mechanical properties and thermal stability by forming a hydrophilic sulfonate-based film on its surface.

[0057] In the above embodiments, the polymer matrix and the modified inorganic powder filler are mixed by solid-phase mixing or wet synthesis to improve the strength, toughness, corrosion resistance and high temperature resistance of the material. The mixing ratio of the polymer matrix and the modified inorganic powder filler is 1:0.1-1:2.

[0058] In specific embodiments, the mixing ratio of polymer matrix and modified inorganic powder filler is 1:0.1-1:2. Due to the high strength and toughness of the inorganic powder filler, and with appropriate addition, it can improve the mechanical properties of the polymer matrix, thereby achieving higher strength and toughness. By controlling the mixing ratio of inorganic powder filler and polymer matrix, they are integrated to form a new composite material system with good corrosion resistance and high-temperature resistance, suitable for various harsh environments. Solid-state mixing or wet synthesis can be used for mixing. Regardless of the method, controlling the mixing ratio is crucial to effectively optimize the composite material preparation process and obtain products with stability and consistency. Depending on the mixing ratio of polymer matrix and inorganic powder filler, the needs of different application fields can be met, such as automotive manufacturing, building materials, electronics, and aerospace.

[0059] In summary, by adjusting the mixing ratio of polymer matrix and modified inorganic powder filler, the performance and preparation process of composite materials can be optimized, thereby enhancing their competitiveness and application prospects in various application fields.

[0060] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these specific embodiments are merely illustrative. Those skilled in the art can omit, substitute, and modify the details of the above methods and systems in various ways without departing from the principles and essence of the present invention. For example, combining the above method steps to perform substantially the same function and achieve substantially the same result according to substantially the same method falls within the scope of the present invention. Therefore, the scope of the present invention is defined only by the appended claims.

Claims

1. A composite material based on modified inorganic powder, characterized in that: The composite material includes: A polymer matrix is ​​used to transfer loads and protect fillers. The composite material uses a high-molecular polymer as the matrix to improve its anti-slip properties, electro-oxidation resistance, water resistance, and flame retardancy. The polymer matrix includes polyurethane, polyamide, epoxy resin, and polyimide. The content of polyurethane accounts for 29%-35% of the raw material composition, the content of polyamide accounts for 20%-23% of the raw material composition, the content of epoxy resin accounts for 45%-48% of the raw material composition, and the content of polyimide accounts for 2%-6% of the raw material composition. Modified inorganic powder fillers are used to improve the performance of the composite material. The modified inorganic powder fillers include modified nanopowders, modified carbon fibers, modified silicates, and modified alumina. The optimal addition ratio of the modified nanopowders, modified carbon fibers, modified silicates, and modified alumina is calculated using an optimal ratio mixing algorithm to maximize the performance of the composite material. The modified nanopowders and modified carbon fibers undergo high-temperature heat treatment to form carboxyl and anhydride chemical functional groups, thereby increasing surface roughness and stability. The modified silicates and modified alumina are modified with surface coupling agents to change surface properties, thereby improving the dispersibility, surface wettability, chemical stability, and wear resistance of the modified inorganic powder fillers. The chemical reaction formula for the modification of the modified silicate is as follows: （1） In formula (1), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; The modifying chemical reaction formula for the modified alumina is as follows: （2） In formula (2), Indicates silicate, Indicates surface coupling agent, Indicates modified silicate, It represents water; An auxiliary agent is prepared to adjust the viscosity, stability, solubility, and enhance the interaction between the composite material and the matrix and filler. The auxiliary agent includes a surfactant, a thickener, a dispersant, a crosslinking agent, and a solvent. The surfactant accounts for 0.17%-0.57% of the raw material mass, the thickener accounts for 1.2%-4.5% of the raw material mass, the dispersant accounts for 0.15%-0.20% of the raw material mass, the crosslinking agent accounts for 3.6%-5.6% of the raw material mass, and the balance is a solvent, namely water. Functional additives are used to enhance the processing performance and physicochemical properties of the composite material. The functional additives include plasticizers, oxidation inhibitors, flame retardants, and antiviral agents. The raw material mass percentage of the plasticizer is 0.02%-0.025%, the raw material mass percentage of the oxidation inhibitor is 0.03%-0.04%, the raw material mass percentage of the flame retardant is 0.03%-0.05%, and the raw material mass percentage of the antiviral agent is 0.1%-1%.

2. The composite material based on modified inorganic powder according to claim 1, characterized in that: The optimal mixing algorithm calculates the optimal addition ratio of the modified inorganic powder filler using a partial autocorrelation coefficient function to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The partial autocorrelation coefficient function determines the optimal addition ratio of various fillers by calculating the correlation between the addition ratio of the modified inorganic powder filler and its properties. The sample set of addition ratios for the modified inorganic powder filler is as follows: , This indicates the first sample to be added in proportion. This indicates the second sample to be added in proportion. This indicates the i-th sample with the added proportion, 1 , Let represent the nth addition ratio sample, where n is the total number of addition ratio samples. Normalization is performed on each sample in the sample set C to eliminate dimensional differences caused by different filler addition ratios. The normalization expression is: （3） In formula (3), Add the proportional sample normalization result to the i-th sample. This represents the maximum sample value of the addition ratio of the modified inorganic powder filler. This represents the minimum sample value of the addition ratio of the modified inorganic powder filler. To add a proportional sample normalization factor; measure the performance index of the composite material corresponding to the added proportional samples respectively, and calculate the relevant empirical entropy Y of the added proportion. The output function formula is: （4） In formula (4), Add proportion The relevant empirical entropy, The performance index of the composite material corresponding to the i-th addition ratio sample is... The correlation function between the added proportion samples and the corresponding performance indicators of the composite material is defined. The optimal combination of added proportions is obtained by minimizing the relevant empirical entropy to improve the strength, toughness, corrosion resistance, and high-temperature resistance of the composite material. The formula for minimizing the relevant empirical entropy is: （5） In formula (5), To minimize relevant experience, Add a limiting filter function for proportional samples.

3. The composite material based on modified inorganic powder according to claim 1, characterized in that: The modified inorganic powder filler comprises, by mass percentage, 0.03-0.04% modified nanopowder, 0.20-0.25% modified carbon fiber, 0.3-0.5% modified silicate, and 3.6-4.2% modified alumina.

4. The composite material based on modified inorganic powder according to claim 1, characterized in that: The composite material comprises, by weight, 25-35 parts of the polymer matrix, 2.5-70 parts of the modified inorganic powder filler, 1.096-8.93 parts of the preparation aid, and 1.5-2.5 parts of the functional additive.

5. The composite material based on modified inorganic powder according to claim 1, characterized in that: The surfactants include fluorocarbonate, octylphenol polyoxyethylene ether, and sodium dodecylbenzene sulfonate; the thickeners include ethyl cellulose, polyacrylic acid, and modified bentonite; the dispersants include sodium hydroxide, ammonium sulfate, and potassium chloride; and the crosslinking agents include dimethylacrylamide, pentaerythritol acrylate, and stearate.

6. The composite material based on modified inorganic powder according to claim 1, characterized in that: The plasticizers include diethylene glycol esters and octyl esters; the oxidation inhibitors include phenolic oxidation inhibitors, phenolic oxidation inhibitors, and thiol oxidation inhibitors; the flame retardants include nitrogen-based flame retardants and phosphorus-based flame retardants; and the antiviral agent uses titanium dioxide to inhibit the growth and reproduction of viruses. The titanium dioxide destroys the cell walls and membranes of viruses through photocatalysis, thereby inhibiting the growth and reproduction of bacteria and viruses and improving the safety, antiviral properties, and environmental friendliness of the composite material.

7. An application of a composite material based on modified inorganic powder, characterized in that: The composite material based on modified inorganic powder as described in any one of claims 1-6 is applied, and the application of the composite material includes the following steps: Step 1: Select a high-performance polymer as the matrix. The polymer matrix changes its surface chemical properties through chemical bonding to improve the compatibility and adhesion between the polymer matrix and the modified inorganic powder filler. Step 2: Select nanoparticles, carbon fibers, silicates and alumina inorganic powder as reinforcing agents, and change the surface properties through pulverization, heat treatment and surface coupling agents to form the modified inorganic powder filler, so as to improve the dispersibility and reinforcing effect of the inorganic powder. Step 3: The modified inorganic powder filler is uniformly dispersed in the polymer matrix through heating, stirring, mixing and film formation processes to form a matrix-filler mixture; Step 4: Add the preparation aids and the functional additives to the matrix filler mixture to adjust the rheology and processability of the composite material, and process the matrix filler mixture by extrusion, injection molding and pressing to generate composite material molded parts; Step 5: The composite material based on modified inorganic powder is obtained after drying and curing.

8. The application of a composite material based on modified inorganic powder according to claim 7, characterized in that: The chemical reactions in step one that alter the surface chemical properties of the polymer matrix through chemical bonding include: (1) Bonding reaction between polyurethane and methyl acrylate: （6） In formula (6), It is methyl acrylate. It is polyurethane. It is a polyurethane resin. The polyurethane, which is methanol, achieves strong bonding and composite between different materials by obtaining carbon double bonds in the methyl acrylate; (2) Bonding reaction of polyamide with 1,2-ethylenediamine and dicarboxylic acids: （7） In formula (7), It is 1,2-ethylenediamine. It is polyamide. It is a polyamide polymer, in which the units of the polyamide polymer are connected by affinity to form hydrophilic hydroxyl groups on the surface, thereby improving the corrosion resistance and adhesion of the polymer matrix; (3) Bonding reaction between epoxy resin and silane: （8） In formula (8), It is a silane. It is made of epoxy resin. The epoxy resin molecule improves the mechanical properties, chemical stability and heat resistance of the epoxy resin through the siloxane bond between the epoxy group and the silane group, and improves the adhesive strength and structural stability of the epoxy resin through the silane group. (4) Bonding reaction between polyimide and sodium octadecyl sulfate: （9） In formula (9), It is polyimide. It is sodium octadecyl sulfate. The polyimide has a molecular structure, and the polyimide improves its surface hydrophilicity, chemical compatibility, adhesion, corrosion resistance, mechanical properties and thermal stability by forming a hydrophilic sulfonate-based film on its surface.

9. The application of a composite material based on modified inorganic powder according to claim 7, characterized in that: The polymer matrix and the modified inorganic powder filler are mixed by solid-phase mixing or wet synthesis to improve the strength, toughness, corrosion resistance and high temperature resistance of the material. The mixing ratio of the polymer matrix and the modified inorganic powder filler is 1:0.1-1:2.

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