Anti-aging performance determination method and device, storage medium and program product

Abstract

The invention discloses an anti-aging performance determination method and device, a storage medium and a program product, and belongs to the technical field of computers. The method comprises the following steps: performing aging treatment on a first rubber material to obtain a first aged material; performing a performance test on the first aging material to obtain first performance data; and according to the first performance data and the target function, determining a first aging duration. The objective function is used for describing the relationship between the aging duration and the performance data of the naturally aged rubber material, and the first aging duration is the equivalent aging duration of the naturally aged rubber material corresponding to the first performance data. Therefore, the shorter the first aging duration is, the better the aging resistance of the first rubber material is; the longer the first aging duration is, the poorer the aging resistance of the first rubber material is. Therefore, the aging resistance of the first rubber material can be rapidly, efficiently and accurately evaluated.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and in particular to a method, device, storage medium and program product for determining aging resistance. Background Art

[0002] Composite insulators are widely used in high-voltage transmission lines due to their superior weather resistance, lightweight construction, and ease of maintenance. Silicone rubber, the outer insulating material of composite insulators, is susceptible to factors such as corona discharge, UV radiation, high humidity, and pollution. To improve its aging resistance, fillers are often added during production. However, varying filler ratios significantly impact the aging resistance of silicone rubber. Therefore, testing the aging resistance of silicone rubber is a key issue of concern. Summary of the Invention

[0003] This application provides a method, device, storage medium, and program product for determining aging resistance, which can determine the aging resistance of rubber materials. The technical solution is as follows:

[0004] In a first aspect, a method for determining aging resistance is provided, the method comprising:

[0005] performing an aging treatment on the first rubber material to obtain a first aged material;

[0006] performing a performance test on the first aged material to obtain first performance data;

[0007] A first aging time is determined based on the first performance data and an objective function, wherein the objective function is used to describe the relationship between the aging time of the naturally aged rubber material and the performance data, and the first aging time is used to indicate the aging resistance of the first rubber material.

[0008] In the present application, an aging treatment is performed on a first rubber material to obtain a first aged material. A performance test is performed on the first aged material to obtain first performance data. Finally, a first aging time is determined based on the first performance data and an objective function. The objective function is used to describe the relationship between the aging time of a naturally aged rubber material and the performance data. The first aging time is the equivalent aging time of the first performance data corresponding to the naturally aged rubber material. Therefore, the shorter the first aging time, the lower the degree of aging of the first rubber material, that is, the better the aging resistance of the first rubber material; the longer the first aging time, the higher the degree of aging of the first rubber material, that is, the worse the aging resistance of the first rubber material. In this way, the aging resistance of the first rubber material can be more accurately reflected by the first aging time. In this way, the aging resistance of the first rubber material can be evaluated more quickly, efficiently and accurately.

[0009] Optionally, the method according to claim 1 is characterized in that the aging treatment of the first rubber material to obtain the first aged material comprises:

[0010] mixing an alkaline solution with the first rubber material to obtain a first mixture;

[0011] heating the first mixture to obtain a second mixture;

[0012] Rinse the second mixture with deionized water to obtain a third mixture;

[0013] The third mixture is dried to obtain the first aged material.

[0014] Optionally, the performance test includes one or more of an electrical performance test, a mechanical performance test, and a surface morphology test.

[0015] Optionally, the electrical performance test includes one or more of a photoelectron spectroscopy test and a thermogravimetric analysis test;

[0016] When the performance test includes the photoelectron spectroscopy test, the first performance data includes a first content, which is the content of the high-oxidation state target element in the first aged material; when the performance test includes the thermogravimetric analysis test, the first performance data includes a second content, which is the content of the inorganic filler in the first aged material.

[0017] Optionally, the method further includes:

[0018] performing an aging treatment on the second rubber material to obtain a second aged material, wherein the filler ratio of the second rubber material is different from the filler ratio of the first rubber material;

[0019] performing a performance test on the second aged material to obtain second performance data;

[0020] determining a second aging time according to the second performance data and the objective function, wherein the second aging time is used to indicate the aging resistance of the second rubber material;

[0021] The aging resistance of the first rubber material and the second rubber material is determined according to the first aging time and the second aging time.

[0022] Optionally, determining the aging resistance of the first rubber material and the second rubber material according to the first aging time and the second aging time includes:

[0023] When the first aging time is shorter than the second aging time, determining that the aging resistance of the first rubber material is higher than the aging resistance of the second rubber material;

[0024] When the first aging time is longer than the second aging time, it is determined that the aging resistance of the first rubber material is lower than the aging resistance of the second rubber material.

[0025] Optionally, the method further includes:

[0026] The aging resistance of the first rubber material is determined according to the magnitude relationship between the first aging time and a preset time.

[0027] In a second aspect, there is provided an apparatus for determining aging resistance, the apparatus comprising:

[0028] A first aging module, configured to perform aging treatment on the first rubber material to obtain a first aged material;

[0029] a first testing module, configured to perform a performance test on the first aged material to obtain first performance data;

[0030] A first determination module is configured to determine a first aging duration based on the first performance data and an objective function, wherein the objective function is configured to describe a relationship between an aging duration and performance data of a naturally aged rubber material, and the first aging duration is configured to indicate aging resistance of the first rubber material.

[0031] In a third aspect, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the method for determining aging resistance described in the first aspect.

[0032] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for determining the aging resistance performance described in the first aspect is implemented.

[0033] In a fifth aspect, a computer program product is provided. When the computer program product is run on a computer device, the computer device executes the method for determining the aging resistance performance described in the first aspect.

[0034] It can be understood that the beneficial effects of the second, third, fourth and fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1This is a flow chart of a method for determining aging resistance provided in an embodiment of the present application;

[0036] Figure 2 Schematic diagram of a thermogravimetric analysis test provided in an embodiment of the present application;

[0037] Figure 3 is a schematic diagram of an objective function provided in an embodiment of the present application;

[0038] Figure 4 is a schematic diagram of another objective function provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic structural diagram of an apparatus for determining aging resistance provided in an embodiment of the present application;

[0040] Figure 6 It is a structural diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details.

[0042] It should be understood that when used in the specification and appended claims of this application, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their collections. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0043] It should be understood that the "one or more" mentioned in this application refers to one, two or more, and the "multiple" mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B. The "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0044] To facilitate the clear description of the technical solutions of this application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or order of execution, and the words "first" and "second" do not necessarily mean different.

[0045] The phrases "one embodiment" or "some embodiments" described in this application mean that the specific features, structures, or characteristics described in the embodiment are included in one or more embodiments of the application. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. that appear in different places in this application do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized.

[0046] The aging resistance method provided in the embodiments of the present application is explained in detail below.

[0047] In some embodiments, a skilled person can prepare rubber materials with different filler ratios.

[0048] The rubber material can be prepared from a rubber matrix and a filler. For example, the rubber material can be called a composite insulator silicone rubber material.

[0049] The rubber materials with different filler ratios refer to the rubber materials prepared using different ratios of rubber matrix to filler. For example, the ratio of rubber matrix to filler can be 10:1, 10:1.5, or 10:2, etc., which is not limited in the present embodiment.

[0050] For example, the rubber material may be a rubber material such as high temperature vulcanized silicone rubber (HTV-SR), which is not limited in the embodiment of the present application.

[0051] The rubber matrix is ​​a basic substance constituting the main structure of the rubber material. For example, the rubber matrix can be a room temperature vulcanized silicone rubber (RTV) (including but not limited to RTV615) or other rubber matrix, which is not limited in the present embodiment.

[0052] The filler is used to enhance the performance of the rubber material. For example, the filler can be silicon dioxide (SiO2), aluminum hydroxide (ATH) or other fillers, which are not limited in the present embodiment.

[0053] For example, taking RTV615 as the rubber matrix and SiO2 particles as the filler as an example, the preparation process of the rubber material may include the following steps (1) to (7).

[0054] Step (1): Weigh RTV615 to obtain the mass of RTV 615.

[0055] For example, the RTV 615 may be placed in a beaker and then weighed under vacuum conditions to obtain the mass of the RTV 615 .

[0056] Step (2): ultrasonically treat RTV615.

[0057] For example, a beaker containing RTV615 can be placed in a water tank and ultrasonically treated at a frequency of 40 kHz for 80 minutes. Here, ultrasonic treatment at 40 kHz and 80 minutes is used as an example for illustrative purposes. In actual applications, ultrasonic treatment can also be performed at other frequencies and durations as needed, and this embodiment of the present application is not limited thereto.

[0058] Ultrasonic waves generate high-frequency vibrations and bubbles that can destroy bubbles in RTV615 and cause them to escape from RTV615. This can reduce the impact of bubbles on the subsequent preparation of rubber materials.

[0059] Step (3): Obtain a certain mass of SiO2 particles, wherein the mass ratio of RTV615 to the SiO2 particles is 10:1.

[0060] Here, the filler ratio of 10:1 is used as an example for illustrative description. In actual applications, other filler ratios can also be set according to needs, and the embodiments of the present application are not limited to this.

[0061] Step (4): Drying the SiO2 particles.

[0062] For example, the SiO2 particles can be placed in an oven at 150 degrees Celsius (°C) for 12 hours to remove moisture. Here, the drying process at 150°C for 12 hours is used as an example for illustration. In actual applications, the drying process can also be performed at other temperatures and durations as required, and this embodiment of the application is not limited thereto.

[0063] By removing moisture from the SiO2 particles, the moisture can be prevented from interfering with the cross-linking reaction of RTV615, thereby helping to improve the strength and durability of the prepared rubber material.

[0064] Step (5): Mix the dried SiO2 particles with RTV 615 to obtain a mixed solution.

[0065] Step (6): Degas the mixed solution.

[0066] By degassing the mixed solution, bubbles in the mixed solution can be effectively removed, thereby preventing the bubbles from affecting the properties of the rubber material and ensuring the density and strength of the prepared rubber material.

[0067] Step (7): solidifying the degassed mixed solution to obtain a rubber material with a filler ratio of 10:1.

[0068] For example, the mixed solution can be poured into a container with a size of 100×100×3 mm3. 3 ) in a mold, and then solidify the mixed solution in the mold to obtain a rubber material. Here only 100×100×3mm 3 The mold of is used as an example for illustrative description. In actual application, molds of other sizes can also be used according to needs, and the embodiments of the present application are not limited to this.

[0069] The above description only takes the preparation of a rubber material with a filler ratio of 10:1 as an example. In actual applications, rubber materials with various filler ratios can be prepared.

[0070] After rubber materials with different filler ratios are prepared through the above preparation process, the aging resistance of any one of the multiple rubber materials with different filler ratios can be determined by the following aging resistance determination method.

[0071] Figure 1 This is a flow chart of a method for determining aging resistance provided by an embodiment of the present application. Figure 1 , the method may include the following steps:

[0072] Step 101: A computer device performs aging processing on a first rubber material to obtain a first aged material.

[0073] For example, the first rubber material may be an HTV-SR sample or other rubber material samples, which is not limited in the embodiment of the present application.

[0074] The aging treatment is to simulate the environmental changes during long-term use of rubber materials.

[0075] By performing an aging treatment on the first rubber material, the aging degree of the first rubber material can be known, which provides a basis for subsequently determining the aging resistance of the first rubber material.

[0076] In some embodiments, the operation of step 101 may include the following steps a to d:

[0077] Step a: mixing an alkaline solution with a first rubber material to obtain a first mixture.

[0078] The alkaline solution has a preset volume and a preset concentration. The preset volume and the preset concentration can be pre-set. For example, the alkaline solution can be a potassium hydroxide (KOH) solution. For example, the alkaline solution can be a 2 milliliter (ml) 25 weight percent (wt%) KOH solution.

[0079] Mixing the alkaline solution with the first rubber material allows it to corrode the first rubber material, simulating the corrosion effect of industrial pollution (such as alkaline dust, acid rain, etc.) or a local alkaline environment generated by corona discharge on the first rubber material. Furthermore, the alkaline solution may damage the hydrophobic layer on the surface of the first rubber material, thereby accelerating the aging of the first rubber material.

[0080] For example, the HTV-SR sample can be mixed with 2 ml of KOH solution (25 wt %) in a glass culture dish and reacted for 1 minute to obtain a mixture of the HTV-SR sample and the KOH solution (ie, the first mixture).

[0081] Step b: heating the first mixture to obtain a second mixture.

[0082] For example, the first mixture may be heated at a preset temperature for a first time period to obtain the second mixture. The preset temperature may be pre-set. For example, the preset temperature may be set to 150° C. or another temperature. The first time period may also be pre-set. For example, the first time period may be set to 1 hour or another time period.

[0083] Heating the first mixture can accelerate the decomposition of polydimethylsiloxane (PDMS) chains, the main component of the first rubber material, and accelerate the aging of the first rubber material, thereby simulating the first rubber material being in a high temperature environment (such as sunlight heating or wire heating) for a long time.

[0084] Step c: rinsing the second mixture with deionized water to obtain a third mixture.

[0085] Flushing the second mixture with deionized water can remove unreacted alkaline substances (such as KOH) in the second mixture and remove the decomposition products of the first rubber material, thereby preventing the second mixture from continuing to react and affecting subsequent performance tests, thereby achieving the effect of simulating natural rainfall to flush out pollutants on the surface of the first rubber material.

[0086] Step d: drying the third mixture to obtain a first aged material.

[0087] For example, the third mixture can be naturally dried for a second time period. The second time period can be preset. For example, the second time period can be set to 24 hours, etc., which is not limited in this embodiment of the present application.

[0088] Generally, rubber materials are used to protect high-voltage transmission lines. The aging process in step 101 can realistically simulate the combined aging environment of industrial pollution and high temperatures and rainfall near high-voltage transmission lines, effectively recreating the aging process of the first rubber material under real-world conditions. This not only ensures the aging effects of the first rubber material but also provides reliable data support for determining the aging resistance of the first rubber material.

[0089] Step 102: The computer device performs a performance test on the first aged material to obtain first performance data.

[0090] For example, the performance test may include one or more of an electrical performance test, a mechanical performance test, a surface morphology test, and the like.

[0091] The electrical performance test is used to test the electrical properties of the first aged material. For example, the electrical performance test may include one or more of a photoelectron spectroscopy (XPS) test and a thermogravimetric analysis (TGA) test, which are not limited in this embodiment of the present application. The photoelectron spectroscopy test is used to test chemical changes on the surface of the first aged material. The thermogravimetric analysis test is used to test the thermal stability of the first aged material.

[0092] The mechanical properties test is used to test the mechanical properties of the first aged material. For example, the mechanical properties test may include one or more of a tensile strength test and a break elongation test, although this embodiment of the present application is not limited thereto. The tensile strength test is used to test the tensile bearing capacity of the first aged material. The break elongation test is used to test the ductility and flexibility of the first aged material.

[0093] Surface morphology testing is used to assess the surface structure and microscopic defects of the first aged material. For example, surface morphology testing may include one or more of contact angle testing and electron microscopy analysis, although this embodiment of the present application is not limited thereto. Contact angle testing is used to assess the surface wettability and chemical state of the first aged material. Electron microscopy analysis is used to assess the microscopic morphology and defects of the first aged material.

[0094] The first performance data is data that can indicate the degree of aging of the first rubber material.

[0095] By performing performance tests on the first aged material, first performance data representing the degree of aging of the first rubber material is obtained. This provides key data for determining the aging resistance of the first rubber material. Furthermore, by performing multiple performance tests on the first aged material, embodiments of the present application can evaluate the aging resistance of the first rubber material from multiple perspectives.

[0096] Optionally, if multiple performance tests need to be performed on the first aged material, the first aged material may be divided into multiple portions, so that different performance tests are performed on different portions of the first aged material.

[0097] Optionally, if electrical performance testing is required on the first aged material, the first aged material may be pulverized to improve uniformity and increase the surface area of ​​the first aged material. The pulverized first aged material may then be subjected to an electrical performance test to improve accuracy.

[0098] In some embodiments, when the performance test includes photoelectron spectroscopy testing, the first performance data includes a first content, where the first content is the content of the high oxidation state target element in the first aged material.

[0099] For example, in the case where the target element is Si, the high oxidation state target elements may include Si(—O) 3 and Si(—O) 4 .

[0100] During the aging process, the first rubber material may generate a target element with a high oxidation state due to chemical bond breakage, oxidation reactions, and the like. The content of the target element with a high oxidation state can reflect the degree of aging of the first rubber material. Therefore, the first content can be obtained through photoelectron spectroscopy. For example, the content of the target element with a high oxidation state can be obtained through Si2p photoelectron spectroscopy.

[0101] For example, performing a photoelectron spectroscopy test on the first aged material to obtain the first content may include the following steps (1) to (4).

[0102] Step (1): irradiating the first aged material with X-rays.

[0103] After the first aged material is irradiated with X-rays, inner-shell electrons (such as Si2p) of atoms (such as Si) in the first aged material may be excited to generate photoelectrons.

[0104] Step (2): Scan the first aged material to obtain a photoelectron spectrum.

[0105] For example, the kinetic energy of photoelectrons in the first aged material can be measured using an energy analyzer and converted into binding energy to obtain the photoelectron energy spectrum. For example, the binding energy of Si(-O)2 is 102.1 eV, the binding energy of Si(-O)3 is 102.8 eV, and the binding energy of Si(-O)4 is 103.4 eV.

[0106] Step (3): performing multi-peak fitting on the photoelectron energy spectrum to obtain multiple peaks, which are oxidation state peaks of the target element.

[0107] For example, when the target element is Si, the multiple peaks may include the peak of Si(-O)2, the peak of Si(-O)3, the peak of Si(-O)4, etc., which is not limited in this embodiment of the present application.

[0108] Step (4): Divide the total area of ​​one or more first peaks among the plurality of peaks by the total area of ​​one or more second peaks to obtain a first content, wherein the first peak is a peak of the target element in a high oxidation state, and the one or more second peaks include a peak of the target element in a low oxidation state and a peak of the target element in a high oxidation state. Alternatively, divide the total area of ​​one or more third peaks among the plurality of peaks by the total area of ​​the one or more second peaks to obtain a third content, and subtract the third content from 1 to obtain the first content, wherein the third peak is a peak of the target element in a low oxidation state.

[0109] The third content is the content of the low oxidation state target element in the first aged material.

[0110] For example, when the target element is Si, the low oxidation state target element may include Si(-O) 2. The one or more first peaks may include a peak of Si(-O) 3 and a peak of Si(-O) 4, the one or more second peaks may include a peak of Si(-O) 2, a peak of Si(-O) 3, and a peak of Si(-O) 4, and the one or more third peaks may include a peak of Si(-O) 2.

[0111] In some embodiments, when the performance test includes a thermogravimetric analysis test, the first performance data includes a second content, and the second content is the content of the inorganic filler in the first aged material.

[0112] Rubber materials decompose during aging, while fillers generally remain stable. Therefore, the worse the aging resistance of the rubber material, the more the rubber material decomposes, the more severe the aging of the rubber material, and the higher the percentage of residual inorganic filler. The better the aging resistance of the rubber material, the less the rubber material decomposes, the less severe the aging of the rubber material, and the lower the percentage of residual inorganic filler. Therefore, thermogravimetric analysis can be performed on the aged rubber material to determine the inorganic filler content (i.e., the second content) in the aged rubber material.

[0113] Optionally, performing a thermogravimetric analysis test on the first aged material to obtain the second content may include: pyrolyzing the first aged material to obtain an inorganic filler; and determining the second content as a percentage of the mass of the inorganic filler to the mass of the first aged material.

[0114] Pyrolysis is the process by which substances decompose into simpler substances at high temperatures in the absence or absence of oxygen.

[0115] For example, in the case where the first rubber material comprises ATH, the pyrolysis comprises two stages, the first stage being the decomposition of ATH and the second stage being the decomposition of PDMS chains.

[0116] For example, Figure 2 This is a schematic diagram of a thermogravimetric analysis test provided in the embodiment of the present application. Figure 2 The thermogravimetric analysis test diagram shows the pyrolysis process of an unaged rubber material and a severely aged rubber material. During the pyrolysis of the unaged rubber material, the ATH in the material completed decomposition at 366°C, while the PDMS chains began to decompose. In the second stage, the PDMS chains decomposed to the end at 550°C, at which point the inorganic filler accounted for 48% of the rubber material's mass. During the pyrolysis of the severely aged rubber material, the ATH in the material completed decomposition at 361°C, while the PDMS chains began to decompose. In the second stage, the PDMS chains decomposed to the end at 550°C, at which point the inorganic filler accounted for 57% of the rubber material's mass.

[0117] In some embodiments, when the performance test includes a tensile strength test, the first performance data includes a tensile strength retention rate, which is a ratio of the tensile strength value of the first aged material to the tensile strength value of the first rubber material.

[0118] For example, the tensile strength value of the first aged material and the tensile strength value of the first rubber material may be tested by a tensile testing machine.

[0119] The aging of a rubber material affects its tensile strength. The higher the degree of aging of the rubber material, the lower its tolerable tensile strength. The lower the degree of aging of the rubber material, the higher its tolerable tensile strength. Therefore, the tensile strength retention rate of the first aged material can be obtained to determine the degree of aging of the first aged material.

[0120] In some embodiments, when the performance test includes an elongation at break test, the first performance data includes an elongation at break retention rate, which is a ratio of the elongation at break of the first aged material to the elongation at break of the first rubber material.

[0121] The elongation at break is the ratio of the length of the rubber material after it is stretched to break to the length of the rubber material when it is not stretched.

[0122] For example, the elongation at break of the first aged material and the elongation at break of the first rubber material may be tested by a tensile testing machine.

[0123] The aging of a rubber material affects its elongation at break. The higher the degree of aging of the rubber material, the lower the elongation at break. The lower the degree of aging of the rubber material, the higher the elongation at break. Therefore, the elongation at break retention of the first aged material can be obtained to determine the degree of aging of the first aged material.

[0124] In some embodiments, where the performance test comprises a contact angle test, the first performance data comprises contact angle retention.

[0125] The aging of rubber materials may damage the hydrophobic layer on their surface, affecting their surface hydrophobicity. The higher the degree of aging of the rubber material, the lower its hydrophobicity and the lower its contact angle retention. The lower the degree of aging of the rubber material, the higher its hydrophobicity and the higher its contact angle retention. Therefore, a contact angle test can be performed on the first aged material to determine the degree of aging.

[0126] For example, a droplet of liquid (e.g., water) can be dropped onto the surface of the first aged material using a microsyringe. The droplet's morphology is then photographed, and the droplet's profile is fitted using image analysis software. The contact angle of the droplet is then determined based on this profile. Finally, the ratio of the contact angle of the droplet on the first aged material to the contact angle of the droplet on the first rubber material is determined to yield the contact angle retention rate.

[0127] In some embodiments, when the performance test includes electron microscopy analysis, the first performance data includes crack density and surface roughness. The crack density indicates the number of cracks per square millimeter on the surface of the first aged material. The surface roughness indicates the standard deviation of the grayscale profile of the first aged material.

[0128] The aging of rubber materials affects their surface morphology. The higher the degree of aging, the more cracks there are, and the rougher the surface. The less aged the rubber, the fewer cracks there are, and the smoother the surface. Therefore, electron microscopy analysis of the first aged material can be performed to determine crack density and surface roughness.

[0129] For example, an electron microscope may be used to photograph the surface morphology of the first aged material at different magnifications, and then the crack density and surface roughness may be determined based on the photographs.

[0130] In some embodiments, when the filler in the first rubber material includes ATH, the performance test may include an ATH content test, and the first performance data may include a fourth content, where the fourth content is the percentage of ATH in the first aged material to all fillers in the first aged material.

[0131] During the aging process of a rubber material, fillers other than ATH may be lost due to decomposition or other factors, resulting in an increase in the percentage of ATH in the rubber material relative to the total fillers in the rubber material. The higher the degree of aging of the rubber material, the higher the percentage of ATH in the rubber material relative to the total fillers in the rubber material. The lower the degree of aging of the rubber material, the lower the percentage of ATH in the rubber material relative to the total fillers in the rubber material. Therefore, a fourth content can be obtained to determine the degree of aging of the first aged material.

[0132] For example, the rubber matrix in the first aged material can be removed to obtain all fillers in the first aged material. The fillers in the first aged material are then stirred with 6 ml of sodium hydroxide (NaOH) solution at 80°C for 2 hours. The insoluble matter is filtered and dried to obtain the fillers after ATH removal. The mass of the fillers after ATH removal is then subtracted from the mass of the fillers in the first aged material to obtain the mass of ATH. Finally, the ratio of the mass of ATH to the mass of the fillers in the first aged material is determined to obtain the fourth content.

[0133] Step 103: The computer device determines a first aging time based on the first performance data and an objective function, where the objective function is used to describe the relationship between the aging time of the naturally aged rubber material and the performance data, and the first aging time is used to indicate the aging resistance of the first rubber material.

[0134] The first aging time is the equivalent aging time of the first performance data corresponding to the naturally aged rubber material. That is, the performance data of the rubber material after natural aging for the first aging time is the first performance data.

[0135] It should be noted that, under natural aging conditions, the longer the aging time, the higher the degree of aging. Therefore, after undergoing the same aging treatment (i.e., the aging treatment described in step 101), the shorter the equivalent aging time (i.e., the first aging time) corresponding to the performance data of the aged first rubber material (i.e., the first aged material), the lower the degree of aging of the first rubber material, i.e., the better the aging resistance of the first rubber material; the longer the equivalent aging time corresponding to the performance data of the aged first rubber material, the higher the degree of aging of the first rubber material, i.e., the worse the aging resistance of the first rubber material. Thus, by comparing the performance data of a rubber material subjected to laboratory aging with the performance data of a naturally aged rubber material, and combining the laboratory data with actual operating conditions, the aging resistance of the first rubber material can be more accurately reflected by the equivalent aging time corresponding to the first rubber material.

[0136] The objective function may be pre-set. For example, the objective function may be set based on the relationship between the aging time of a naturally aged rubber material and its performance data.

[0137] For example, the operation of step 103 may be: substituting the first performance data into the objective function to obtain the first aging duration.

[0138] It should be noted that if the performance test in step 102 includes multiple performance tests, the first performance data may include multiple performance data. In this case, the objective function may include multiple functions, each of which is used to describe the relationship between the aging time of the naturally aged rubber material and the multiple performance data. In step 103, any one of the first performance data may be substituted into the corresponding function to obtain the aging time. Thereafter, the maximum of the multiple aging time periods obtained may be used as the first aging time.

[0139] For example, when the performance test includes a photoelectron spectroscopy test, the objective function may be used to describe the relationship between the aging time of the naturally aged rubber material and the content of the target element in a high oxidation state.

[0140] For example, an unaged rubber material, a lightly aged rubber material, and a heavily aged rubber material are obtained. Photoelectron spectroscopy is then performed on each of the unaged rubber material, the lightly aged rubber material, and the heavily aged rubber material. As shown in Table 1 below, the content of highly oxidized Si in the unaged rubber material is 42.9%, the content of highly oxidized Si in the lightly aged rubber material is 51.2%, and the content of highly oxidized Si in the heavily aged rubber material is 57.0%. The aging time and the content of highly oxidized Si in the unaged rubber material, the aging time and the content of highly oxidized Si in the lightly aged rubber material, and the aging time and the content of highly oxidized Si in the heavily aged rubber material are fitted (e.g., linearly fitted) to obtain a target function.

[0141] Table 1

[0142]

[0143] The embodiments of the present application are merely used to exemplify the aging time of the rubber material and the content of highly oxidized Si using Table 1 above as an example. Table 1 above does not limit the embodiments of the present application.

[0144] for example, Figure 3 Schematic diagram of the objective function obtained by fitting according to Table 1. Assuming that the first content is 45.7%, substituting the first content 45.7% into the objective function, it can be obtained that the first aging time is 4 years.

[0145] For example, when the performance test includes a thermogravimetric analysis test, the objective function may be used to describe the relationship between the aging time of the naturally aged rubber material and the content of the inorganic filler.

[0146] For example, an unaged rubber material and a heavily naturally aged rubber material are obtained. Thermogravimetric analysis is performed on each of the unaged and heavily naturally aged rubber materials. As shown in Table 2 below, the unaged rubber material has an inorganic filler content of 50.4% and a silicone rubber content of 49.6%, while the heavily naturally aged rubber material has an inorganic filler content of 62.6% and a silicone rubber content of 37.4%. A fitting (e.g., linear fitting) is performed on the aging time and inorganic filler content of the unaged rubber material and the aging time and inorganic filler content of the heavily naturally aged rubber material to obtain a target function.

[0147] Table 2

[0148]

[0149] The embodiments of the present application are merely used to exemplify the aging time of the rubber material and the content of the inorganic filler using Table 2 above as an example. Table 2 above does not limit the embodiments of the present application.

[0150] For example, when the performance test includes an ATH content test, the objective function may be used to describe the relationship between the aging time of the naturally aged rubber material and the ATH content.

[0151] For example, an unaged rubber material and a heavily naturally aged rubber material are obtained. The ATH content in each of the unaged and heavily naturally aged rubber materials is measured, as shown in Table 3 below. The ATH content in the unaged rubber material is 95%, and the inorganic filler content in the heavily naturally aged rubber material is 99%. A fitting (e.g., linear fitting) is performed on the aging time and inorganic filler content of the unaged rubber material, and the aging time and inorganic filler content of the heavily naturally aged rubber material to obtain the objective function.

[0152] Table 3

[0153] sample ATH content Aging time Unaged rubber material 95％ 0 years Severely naturally aged rubber materials 99％ 20 years

[0154] The present embodiment only uses Table 3 above as an example to illustrate the aging time and ATH content of the rubber material, and Table 3 above does not limit the present embodiment.

[0155] for example, Figure 4Schematic diagram of the objective function obtained by fitting according to Table 3. Assuming that the fourth content is 96.6%, the fourth content 96.6% can be substituted into the objective function to obtain a first aging time of 10 years.

[0156] In some embodiments, after the first aging time is determined, the aging resistance of the first rubber material may be determined based on the magnitude relationship between the first aging time and a preset time.

[0157] The preset duration can be set in advance. The preset duration can be one or more.

[0158] Optionally, assuming that the number of preset time periods is one, the operation of determining the aging resistance of the first rubber material may be as follows: when the first aging time period is greater than the preset time period, determining that the aging resistance of the first rubber material is poor; and when the first aging time period is less than or equal to the preset time period, determining that the aging resistance of the first rubber material is good.

[0159] Optionally, assuming that the preset time lengths include a first preset time length, a second preset time length, and a third preset time length, the operation of determining the aging resistance of the first rubber material according to the size relationship between the first aging time length and the preset time lengths may be: when the first aging time length is less than or equal to the first preset time length, determining that the aging resistance of the first rubber material is good; when the first aging time length is greater than the first preset time length and less than or equal to the second preset time length, determining that the aging resistance of the first rubber material is ordinary; when the first aging time length is greater than the second preset time length, determining that the aging resistance of the first rubber material is poor.

[0160] In some embodiments, the first aging time corresponding to rubber materials with other filler ratios may be determined and compared with the first aging time corresponding to the first rubber material to determine a rubber material with better aging resistance.

[0161] For example, the second rubber material can be aged to obtain a second aged material, wherein the filler ratio of the second rubber material is different from that of the first rubber material; the second aged material is performance tested to obtain second performance data; a second aging time is determined based on the second performance data and an objective function, the second aging time being used to indicate the aging resistance of the second rubber material; and the aging resistance of the first rubber material and the second rubber material are determined based on the first aging time and the second aging time.

[0162] The steps of performing an aging treatment on the second rubber material to obtain a second aged material, performing a performance test on the second aged material to obtain second performance data, and determining the second aging time based on the second performance data and the objective function are similar to the steps 101 to 103 above and are not described in detail in the embodiment of the present application.

[0163] Since the first aging time can reflect the aging resistance of the first rubber material, and the second aging time can reflect the aging resistance of the second rubber material, the aging resistance of the first and second rubber materials can be determined by comparing the first and second aging times. This can provide a basis for optimizing the filler ratio in the rubber material and improving the aging resistance of the rubber material.

[0164] In some embodiments, the operation of determining the aging resistance of the first rubber material and the second rubber material based on the first aging time and the second aging time can be: when the first aging time is less than the second aging time, determining that the aging resistance of the first rubber material is higher than the aging resistance of the second rubber material; when the first aging time is greater than the second aging time, determining that the aging resistance of the first rubber material is lower than the aging resistance of the second rubber material; when the first aging time is the same as the second aging time, determining that the aging resistance of the first rubber material is the same as the aging resistance of the second rubber material.

[0165] If the first aging time is less than the second aging time, it means that after the first rubber material and the second rubber material have undergone the same aging treatment, the degree of aging of the first rubber material is less than that of the second rubber material, and thus it can be determined that the aging resistance of the first rubber material is higher than that of the second rubber material. If the first aging time is greater than the second aging time, it means that after the first rubber material and the second rubber material have undergone the same aging treatment, the degree of aging of the first rubber material is higher than that of the second rubber material, and thus it can be determined that the aging resistance of the first rubber material is lower than that of the second rubber material.

[0166] It should be noted that the present embodiment of the present application can simulate the possible formulation differences in actual projects by preparing rubber materials with different filler ratios. The present embodiment of the present application can determine the corresponding first aging time of rubber materials with different filler ratios, thereby enabling the aging resistance of various rubber materials to be determined relatively quickly, efficiently, and accurately.

[0167] In an embodiment of the present application, an aging treatment is performed on a first rubber material to obtain a first aged material. Thereafter, a performance test is performed on the first aged material to obtain first performance data. Finally, a first aging duration is determined based on the first performance data and an objective function. The objective function is used to describe the relationship between the aging duration of a naturally aged rubber material and the performance data. The first aging duration is the equivalent aging duration of the naturally aged rubber material corresponding to the first performance data. Therefore, the shorter the first aging duration, the lower the degree of aging of the first rubber material, that is, the better the aging resistance of the first rubber material; the longer the first aging duration, the higher the degree of aging of the first rubber material, that is, the worse the aging resistance of the first rubber material. In this way, the aging resistance of the first rubber material can be more accurately reflected by the first aging duration. In this way, the aging resistance of the first rubber material can be evaluated more quickly, efficiently, and accurately.

[0168] Figure 5 This is a schematic diagram of the structure of an anti-aging performance determination device provided by an embodiment of the present application. The device can be implemented as part or all of a computer device by software, hardware, or a combination of both. The computer device can be Figure 6 Computer equipment shown. Figure 5 The device includes: an aging module 501, a testing module 502, and a determination module 503.

[0169] A first aging module 501 is used to perform aging treatment on the first rubber material to obtain a first aged material;

[0170] A first testing module 502 is used to perform a performance test on a first aged material to obtain first performance data;

[0171] The first determination module 503 is configured to determine a first aging time based on the first performance data and an objective function, where the objective function is configured to describe the relationship between the aging time of the naturally aged rubber material and the performance data, and the first aging time is configured to indicate the aging resistance of the first rubber material.

[0172] Optionally, the aging module 501 is configured to:

[0173] mixing an alkaline solution with a first rubber material to obtain a first mixture;

[0174] heating the first mixture to obtain a second mixture;

[0175] Rinse the second mixture with deionized water to obtain a third mixture;

[0176] The third mixture is dried to obtain a first aged material.

[0177] Optionally, the performance test includes one or more of an electrical performance test, a mechanical performance test, and a surface morphology test.

[0178] Optionally, the electrical performance test includes one or more of a photoelectron spectroscopy test and a thermogravimetric analysis test;

[0179] When the performance test includes a photoelectron spectroscopy test, the first performance data includes a first content, which is the content of the high-oxidation state target element in the first aged material; when the performance test includes a thermogravimetric analysis test, the first performance data includes a second content, which is the content of the inorganic filler in the first aged material.

[0180] Optionally, the device further comprises:

[0181] a second aging module, configured to perform an aging treatment on the second rubber material to obtain a second aged material, wherein the filler ratio of the second rubber material is different from the filler ratio of the first rubber material;

[0182] a second testing module, configured to perform a performance test on the second aged material to obtain second performance data;

[0183] a second determining module, configured to determine a second aging time according to the second performance data and the objective function, wherein the second aging time is used to indicate the aging resistance of the second rubber material;

[0184] The third determining module is configured to determine the aging resistance of the first rubber material and the second rubber material according to the first aging time and the second aging time.

[0185] Optionally, the third determining module is configured to:

[0186] When the first aging time is shorter than the second aging time, determining that the aging resistance of the first rubber material is higher than the aging resistance of the second rubber material;

[0187] When the first aging time is longer than the second aging time, it is determined that the aging resistance of the first rubber material is lower than the aging resistance of the second rubber material.

[0188] Optionally, the device further comprises:

[0189] The fourth determining module is configured to determine the aging resistance of the first rubber material according to a magnitude relationship between the first aging time and a preset time.

[0190] In an embodiment of the present application, an aging treatment is performed on a first rubber material to obtain a first aged material. Thereafter, a performance test is performed on the first aged material to obtain first performance data. Finally, a first aging duration is determined based on the first performance data and an objective function. The objective function is used to describe the relationship between the aging duration of a naturally aged rubber material and the performance data. The first aging duration is the equivalent aging duration of the naturally aged rubber material corresponding to the first performance data. Therefore, the shorter the first aging duration, the lower the degree of aging of the first rubber material, that is, the better the aging resistance of the first rubber material; the longer the first aging duration, the higher the degree of aging of the first rubber material, that is, the worse the aging resistance of the first rubber material. In this way, the aging resistance of the first rubber material can be more accurately reflected by the first aging duration. In this way, the aging resistance of the first rubber material can be evaluated more quickly, efficiently, and accurately.

[0191] It should be noted that: when determining the aging resistance performance, the aging resistance determination device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0192] The functional modules in the above embodiments may be integrated into a single processing unit, or each functional module may exist physically as a separate processing unit, or two or more functional modules may be integrated into a single processing unit. The above processing unit may be implemented in either hardware or software. Furthermore, the specific names of the functional modules are merely for the purpose of distinguishing them from one another and are not intended to limit the scope of protection of the embodiments of this application.

[0193] The aging resistance performance determination device and aging resistance performance determination method provided in the above embodiments belong to the same concept. The specific working process of the functional modules in the above embodiments and the technical effects brought about can be found in the method embodiment part and will not be repeated here.

[0194] Figure 6 This is a schematic diagram of the structure of a computer device provided in an embodiment of the present application. Figure 6 As shown, the computer device 6 includes: a processor 60, a memory 61, and a computer program 62 stored in the memory 61 and executable on the processor 60. When the processor 60 executes the computer program 62, the steps of the method for determining aging resistance in the above embodiment are implemented.

[0195] The computer device 6 can be a general-purpose computer device or a dedicated computer device. In a specific implementation, the computer device 6 can be a desktop computer, a portable computer, a network server, a palmtop computer, a mobile phone, a tablet computer, a wireless terminal device, a communication device or an embedded device. The embodiment of the present application does not limit the type of the computer device 6. Those skilled in the art will understand that Figure 6 This is merely an example of the computer device 6 and does not constitute a limitation on the computer device 6 . The computer device 6 may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device 6 may also include input and output devices, network access devices, etc.

[0196] The processor 60 may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0197] In some embodiments, the memory 61 may be an internal storage unit of the computer device 6, such as a hard disk or memory of the computer device 6. In other embodiments, the memory 61 may also be an external storage device of the computer device 6, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the computer device 6. Furthermore, the memory 61 may include both an internal storage unit of the computer device 6 and an external storage device. The memory 61 is used to store an operating system, application programs, a boot loader, data, and other programs. The memory 61 may also be used to temporarily store data that has been output or is about to be output.

[0198] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0199] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0200] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0201] An embodiment of the present application provides a computer program product, which, when executed on a computer, enables the computer to execute the steps in the above-mentioned various method embodiments.

[0202] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned method embodiment, which can be completed by a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, it can implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may at least include: any entity or device capable of carrying the computer program code to a computer device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk and an optical data storage device. The computer-readable storage medium mentioned in the present application can be a non-volatile storage medium, in other words, a non-transient storage medium.

[0203] It should be understood that all or part of the steps for implementing the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the steps may be implemented in the form of a computer program product. The computer program product may include one or more computer instructions. The computer instructions may be stored in the above-mentioned computer-readable storage medium.

[0204] Those skilled in the art will appreciate that the units and algorithm steps of each example described in the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0205] In the embodiments provided in the present application, it should be understood that the disclosed apparatus / computer equipment and methods can be implemented in other ways. For example, the apparatus / computer equipment embodiments described above are merely illustrative. For example, the division of modules or units is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. On the other hand, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present application.

[0206] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant regulations and standards of relevant countries and regions, and corresponding operation entrances are provided for users to choose to authorize or refuse.

[0207] The above embodiments are intended only to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the above embodiments, persons of ordinary skill in the art should understand that they may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application and are therefore intended to be included within the scope of protection of the present application.

Claims

1. A method for determining aging resistance, characterized in that: The method comprises: performing an aging treatment on the first rubber material to obtain a first aged material; performing a performance test on the first aged material to obtain first performance data; A first aging time is determined based on the first performance data and an objective function, wherein the objective function is used to describe the relationship between the aging time of the naturally aged rubber material and the performance data, and the first aging time is used to indicate the aging resistance of the first rubber material.

2. The method according to claim 1, wherein The step of subjecting the first rubber material to an aging treatment to obtain a first aged material comprises: mixing an alkaline solution with the first rubber material to obtain a first mixture; heating the first mixture to obtain a second mixture; Rinse the second mixture with deionized water to obtain a third mixture; The third mixture is dried to obtain the first aged material.

3. The method according to claim 1, wherein The performance test includes one or more of an electrical performance test, a mechanical performance test, and a surface morphology test.

4. The method according to claim 3, wherein The electrical performance test includes one or more of a photoelectron spectroscopy test and a thermogravimetric analysis test; When the performance test includes the photoelectron spectroscopy test, the first performance data includes a first content, which is the content of the high-oxidation state target element in the first aged material; when the performance test includes the thermogravimetric analysis test, the first performance data includes a second content, which is the content of the inorganic filler in the first aged material.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: performing an aging treatment on the second rubber material to obtain a second aged material, wherein the filler ratio of the second rubber material is different from the filler ratio of the first rubber material; performing a performance test on the second aged material to obtain second performance data; determining a second aging time according to the second performance data and the objective function, wherein the second aging time is used to indicate the aging resistance of the second rubber material; The aging resistance of the first rubber material and the second rubber material is determined according to the first aging time and the second aging time.

6. The method according to claim 5, wherein The determining the aging resistance of the first rubber material and the second rubber material according to the first aging time and the second aging time includes: When the first aging time is shorter than the second aging time, determining that the aging resistance of the first rubber material is higher than the aging resistance of the second rubber material; When the first aging time is longer than the second aging time, it is determined that the aging resistance of the first rubber material is lower than the aging resistance of the second rubber material.

7. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: The aging resistance of the first rubber material is determined according to the magnitude relationship between the first aging time and a preset time.

8. A computer device, characterized in that: The computer device includes a memory, a processor, and a computer program stored in the memory and running on the processor, and when the computer program is executed by the processor, the method according to any one of claims 1 to 7 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. A computer program product, characterized in that When the computer program product is run on a computer device, the computer device is caused to perform the method according to any one of claims 1 to 7.

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