Method and device for extracting and identifying white carbon black in rubber

Abstract

The embodiment of the invention provides a method and a device for extracting and identifying white carbon black in rubber, and the method for extracting and identifying white carbon black in rubber comprises the following steps: crushing a rubber sample, and determining a crushed sample; performing impurity removal pretreatment on the crushed sample to determine a white carbon black sample; performing specific surface area test based on the white carbon black sample to determine a specific surface area test result; identifying and determining an identification result based on a specific surface area test result. White carbon black in the rubber material is extracted through the processes of cracking, firing, acid pickling and the like; a BET method and a CTAB method are used for respectively measuring and establishing a specific surface area correlation curve of the raw material white carbon black and the extracted white carbon black to reversely deduce the specific surface area level of the white carbon black used in the sizing material, so that the type of the white carbon black used in the sizing material is identified.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of material detection, and in particular to a method for extracting and identifying white carbon black in rubber. Background Art

[0002] Silica is widely used in tire treads and other parts. Adding silica to the tread rubber can reduce the rolling resistance of the tire and keep it in good anti-skid performance, so the amount and type of silica in the formula rubber are more important information in the analysis of rubber components.

[0003] Similar to carbon black, silica for rubber has semi-reinforced and highly reinforced varieties. The two have different particle sizes and specific surface areas, and there are large differences in surface chemical properties. The surface of silica aggregates or particles is covered with silanol groups with strong polarity and quite active chemical properties. Therefore, compared with carbon black, silica has poor compatibility with general polymers. At the same time, silica particles have a tendency to connect with each other and form a filler-filler network. The strong filler network will lead to a higher hardness of the rubber compound, which is not easy to extrude and form. In general, silica is used in combination with silane coupling agents. The silane coupling agent reacts with the hydroxyl groups on the surface of silica, changing silica from hydrophilic to hydrophobic, thereby increasing compatibility with rubber. If a bifunctional silane coupling agent is used, it can also react with rubber to increase the bonding force between silica and rubber, make silica more evenly dispersed, and reduce the agglomeration of silica.

[0004] Silica exists in the vulcanized rubber in a bonded manner. To extract silica from the rubber, it can only be achieved by pyrolyzing the rubber. The microscopic properties of extracted silica will change to a great extent, mainly due to two factors: First, during the mixing process, due to the action of mechanical stress and physical and chemical forces, filler aggregates or particles such as silica are broken, and broken into smaller particles under the action of the shear force of the internal mixer rotor, resulting in certain changes in the microstructure of silica; second, during the burning process, high temperatures exceeding 800°C will cause the surface of silica particles to collapse, which will also lead to changes in the microscopic morphology of silica, ultimately resulting in a large difference between the specific surface area result of the extracted silica and the raw material silica.

[0005] There is currently no standard method for identifying the types of silica used in masterbatch, final mix and vulcanized rubber. A better solution is urgently needed. Summary of the invention

[0006] In view of this, the embodiments of this specification provide a method for extracting and identifying white carbon black in rubber. One or more embodiments of this specification also relate to an apparatus for extracting and identifying white carbon black in rubber, a computing device, a computer-readable storage medium, and a computer program to solve the technical defects existing in the prior art.

[0007] According to a first aspect of the embodiments of this specification, a method for extracting and identifying white carbon black in rubber is provided, comprising: Crushing the rubber sample to determine the crushed sample; The crushed samples were pre-treated to remove impurities and the white carbon black samples were determined; Conduct a specific surface area test based on the white carbon black sample to determine the specific surface area test result; The identification result is determined based on the specific surface area test result.

[0008] In a possible implementation, the crushed sample is pre-treated to remove impurities and determine the white carbon black sample, including: The crushed sample is subjected to a pyrolysis treatment to determine a pyrolysis sample; The pyrolysis sample is subjected to incineration treatment to determine the ash sample; The ash samples were acid washed to determine the white carbon black samples.

[0009] In a possible implementation, the crushed sample is subjected to a lysis process to determine a lysis sample, including: The crushed sample was pyrolyzed at 600°C for two hours in a nitrogen atmosphere to obtain a pyrolysis sample.

[0010] In a possible implementation, the pyrolysis sample is subjected to a burning process to determine the ash sample, including: The pyrolysis sample was burned in a box-type resistance furnace at 650°C for five hours to obtain an ash sample.

[0011] In a possible implementation, the ash sample is subjected to an acid wash treatment to determine the white carbon black sample, including: The ash sample is immersed in a set amount of hydrochloric acid to obtain an initial silica sample; The remaining initial white carbon black sample is washed with deionized water until the pH value is neutral, thereby obtaining a target white carbon black sample; The target white carbon black sample is dried at 100° C.-110° C. to obtain a white carbon black sample.

[0012] In a possible implementation, a specific surface area test is performed on a white carbon black sample to determine a specific surface area test result, including: The specific surface area test results were determined based on the specific surface area test of the silica sample using the CTAB method and the BET method.

[0013] In a possible implementation, performing identification based on the specific surface area test result to determine the identification result includes: The specific surface area test results corresponding to the CTAB method and the specific surface area test results of the BET method are compared to determine the identification results.

[0014] According to a second aspect of the embodiment of this specification, a device for extracting and identifying white carbon black in rubber is provided, comprising: A rubber crushing module is configured to crush the rubber sample and determine the crushed sample; A sample determination module is configured to perform impurity removal pretreatment on the crushed sample to determine the silica sample; A sample testing module is configured to perform a specific surface area test based on a white carbon black sample and determine a specific surface area test result; The sample identification module is configured to perform identification based on the specific surface area test result to determine the identification result.

[0015] According to a third aspect of an embodiment of this specification, a computing device is provided, including: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the above-mentioned method for extracting and identifying white carbon black in rubber are realized.

[0016] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided, which stores computer-executable instructions, and when the instructions are executed by a processor, the steps of the above-mentioned method for extracting and identifying white carbon black in rubber are implemented.

[0017] According to a fifth aspect of the embodiments of this specification, a computer program is provided, wherein when the computer program is executed in a computer, the computer is caused to execute the steps of the above-mentioned method for extracting and identifying white carbon black in rubber.

[0018] The embodiments of this specification provide a method and device for extracting and identifying white carbon black in rubber, wherein the method for extracting and identifying white carbon black in rubber includes: crushing the rubber sample to determine the crushed sample; pre-treating the crushed sample to remove impurities to determine the white carbon black sample; performing a specific surface area test based on the white carbon black sample to determine the specific surface area test result; and performing identification based on the specific surface area test result to determine the identification result. The white carbon black in the rubber is extracted through processes such as cracking, burning, and pickling; the specific surface area correlation curves of the raw material white carbon black and the extracted white carbon black are measured and established by the BET method and the CTAB method respectively to reversely infer the specific surface area level of the white carbon black used in the rubber, thereby identifying the type of white carbon black used in the rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a flow chart of a method for extracting and identifying white carbon black in rubber provided by one embodiment of this specification; Figure 2 It is a schematic diagram of a first calibration curve of a method for extracting and identifying white carbon black in rubber provided by an embodiment of this specification; Figure 3 It is a schematic diagram of a second calibration curve of a method for extracting and identifying white carbon black in rubber provided by an embodiment of this specification; Figure 4 It is a structural schematic diagram of a device for extracting and identifying white carbon black in rubber provided by an embodiment of this specification; Figure 5 It is a structural block diagram of a computing device provided by an embodiment of this specification. DETAILED DESCRIPTION

[0020] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0021] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0022] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0023] First, the terms involved in one or more embodiments of this specification are explained.

[0024] The BET method is a method based on gas adsorption, which calculates the specific surface area by measuring the amount of gas adsorbed on the solid surface.

[0025] The CTAB method is a method based on liquid adsorption, which calculates the specific surface area by measuring the amount of liquid adsorbed on the solid surface.

[0026] In this specification, a method for extracting and identifying white carbon black in rubber is provided. This specification also relates to an apparatus for extracting and identifying white carbon black in rubber, a computing device, and a computer-readable storage medium, which are described in detail one by one in the following embodiments.

[0027] See also Figure 1 , Figure 1 A flow chart of a method for extracting and identifying white carbon black in rubber provided according to an embodiment of the present specification is shown, which specifically includes the following steps.

[0028] Step 101: crushing the rubber sample to determine the crushed sample.

[0029] Preferably, the rubber sample is vulcanized rubber, masterbatch, final rubber and other unvulcanized rubber.

[0030] In practical applications, the rubber sample can be crushed into fine particles by a crushing tool, and then subjected to subsequent impurity removal treatment.

[0031] It should be noted that the method of this scheme can also be used to crush and pre-treat rubber materials of unknown formula.

[0032] Step 102: Perform impurity removal pretreatment on the crushed sample to determine the silica sample.

[0033] In a possible implementation, the crushed sample is pre-treated to remove impurities to determine the white carbon black sample, including: performing a pyrolysis treatment on the crushed sample to determine the pyrolysis sample; performing a calcination treatment on the pyrolysis sample to determine the ash sample; and performing a pickling treatment on the ash sample to determine the white carbon black sample.

[0034] In practical applications, after the rubber sample is crushed, it is subjected to processes such as cracking, burning, and pickling to remove the organic compounding agent, rubber hydrocarbon, carbon black, inorganic filler and other components to obtain the extracted white carbon black sample.

[0035] In a possible implementation, the crushed sample is subjected to a cracking treatment to determine a cracked sample, including: cracking the crushed sample at 600° C. for two hours in a nitrogen atmosphere to obtain a cracked sample.

[0036] In practical applications, the broken rubber samples were pyrolyzed at 600°C for 2 hours under nitrogen atmosphere.

[0037] In a possible implementation, the pyrolysis sample is subjected to a burning treatment to determine the ash sample, including: burning the pyrolysis sample in a box-type resistance furnace at 650° C. for five hours to obtain the ash sample.

[0038] In practical applications, the cracked sample was calcined in a box-type resistance furnace at 650°C for 5 hours to obtain ash residue.

[0039] In one possible implementation, the ash sample is subjected to an acid wash treatment to determine the white carbon black sample, including: soaking the ash sample in a set amount of hydrochloric acid to obtain an initial white carbon black sample; adding deionized water to the remaining initial white carbon black sample for washing until the pH value is neutral to obtain a target white carbon black sample; drying the target white carbon black sample at 100°C-110°C to obtain a white carbon black sample.

[0040] In practical applications, the ash residue remaining after burning is soaked in a sufficient amount of dilute hydrochloric acid, the remaining white carbon black is washed with deionized water until the pH value is neutral, the filtrate is discarded, and the residue is dried at 100-110°C.

[0041] The extraction temperature of silica in the embodiments of this specification is much lower than the extraction temperature of rubber ash in the current national standard, which greatly reduces the damage to the silica morphology during the extraction process, reduces the system error, and further reduces its impact on the test results of the specific surface area of ​​the extracted silica, ensuring that the test results are more accurate and reliable.

[0042] Step 103: Perform a specific surface area test on the silica sample to determine a specific surface area test result.

[0043] In a possible implementation, performing a specific surface area test on the silica sample and determining the specific surface area test result includes: performing a specific surface area test on the silica sample by a CTAB method and a BET method and determining the specific surface area test result.

[0044] In practical applications, the specific surface area test can be carried out by the CTAB method and the BET method. Based on the correlation established between the specific surface area of ​​the extracted silica sample and the specific surface area of ​​the raw silica, the specific surface area level of the silica sample in the rubber compound can be characterized and the type can be identified.

[0045] Specifically, the specific steps based on the CTAB method are as follows: (1) Measure the specific surface area results of raw materials white carbon black (numbered 1# to 6#) with different gradient specific surface area levels; (2) Determine the specific surface area of ​​white carbon black extracted in the above steps respectively; (3) Establish a correlation curve between the specific surface area of ​​the white carbon black raw material and the specific surface area of ​​the corresponding extracted white carbon black, such as Figure 2 As shown, the correlation curve equation is y=k1x-b1, where k1 and b1 are constants.

[0046] Further, the specific steps based on the BET method are as follows: (1) Measure the specific surface area results of raw materials white carbon black (numbered 1# to 6#) with different gradient specific surface area levels; (2) Determine the specific surface area of ​​white carbon black extracted in the above steps respectively; (3) Establish a correlation curve between the specific surface area of ​​the white carbon black raw material and the specific surface area of ​​the corresponding extracted white carbon black, such as Figure 3 As shown, the correlation equation is y=k2x-b2, where k2 and b2 are constants.

[0047] In the examples of this specification, six kinds of white carbon black with different gradient specific surface area levels were used to refine vulcanized rubber sheets for extraction of white carbon black, and their specific surface areas were tested. Correlation was established with the specific surface areas of the corresponding raw material white carbon black, and a correlation curve was drawn. The specific surface area of ​​the raw material white carbon black used was accurately calculated by extracting the specific surface area of ​​white carbon black, and the type of white carbon black used in the rubber was identified.

[0048] Furthermore, this scheme adopts the BET and CTAB methods to test the specific surface area of ​​extracted white carbon black respectively. The two methods support each other to ensure that the identification results are more accurate and reliable.

[0049] Step 104: Perform identification based on the specific surface area test result to determine the identification result.

[0050] In a possible implementation, the identification is performed based on the specific surface area test result to determine the identification result, including: comparing the specific surface area test result corresponding to the CTAB method with the specific surface area test result of the BET method to determine the identification result.

[0051] In practical applications, the white carbon black in the rubber is extracted according to the above-mentioned sample pretreatment method, and the specific surface area of ​​the extracted white carbon black is tested according to the CTAB method and the BET method. The measured result value is substituted as the x value into the equations y=k1x-b1 and y=k2x-b2 to calculate the CTAB method specific surface area and BET method specific surface area of ​​the raw material white carbon black, respectively.

[0052] Furthermore, the vulcanized rubber made from 4# and 6# white carbon black can be selected to verify the repeatability of the test method. See the table below for details.

[0053] Table 1 Repeatability verification of the specific surface area test of extracted white carbon black - CTAB method

[0054] Table 2 Repeatability verification of the specific surface area test of extracted white carbon black - BET method

[0055] Verification: The CTAB method has good repeatability and stability in the specific surface area of ​​extracted white carbon black, with a relative standard deviation of less than 0.67%. The BET method has good repeatability and stability in the specific surface area of ​​extracted white carbon black, with a relative standard deviation of less than 0.81%.

[0056] The embodiments of this specification provide a method and device for extracting and identifying white carbon black in rubber, wherein the method for extracting and identifying white carbon black in rubber includes: crushing the rubber sample to determine the crushed sample; pre-treating the crushed sample to remove impurities to determine the white carbon black sample; performing a specific surface area test based on the white carbon black sample to determine the specific surface area test result; and performing identification based on the specific surface area test result to determine the identification result. The white carbon black in the rubber is extracted through processes such as cracking, burning, and pickling; the specific surface area correlation curves of the raw material white carbon black and the extracted white carbon black are measured and established by the BET method and the CTAB method respectively to reversely infer the specific surface area level of the white carbon black used in the rubber, thereby identifying the type of white carbon black used in the rubber.

[0057] Corresponding to the above method embodiment, this specification also provides an embodiment of a device for extracting and identifying white carbon black in rubber. Figure 4 The schematic diagram of the structure of a device for extracting and identifying white carbon black from rubber provided in one embodiment of the present specification is shown. Figure 4 As shown, the device comprises: The rubber crushing module 401 is configured to crush the rubber sample and determine the crushed sample; The sample determination module 402 is configured to perform impurity removal pretreatment on the crushed sample to determine the silica sample; The sample testing module 403 is configured to perform a specific surface area test based on the white carbon black sample and determine a specific surface area test result; The sample identification module 404 is configured to perform identification based on the specific surface area test result to determine the identification result.

[0058] In a possible implementation, the sample determination module 402 is further configured to: The crushed sample is subjected to a pyrolysis treatment to determine a pyrolysis sample; The pyrolysis sample is subjected to incineration treatment to determine the ash sample; The ash samples were acid washed to determine the white carbon black samples.

[0059] In a possible implementation, the sample determination module 402 is further configured to: The crushed sample was pyrolyzed at 600°C for two hours in a nitrogen atmosphere to obtain a pyrolysis sample.

[0060] In a possible implementation, the sample determination module 402 is further configured to: The pyrolysis sample was burned in a box-type resistance furnace at 650°C for five hours to obtain an ash sample.

[0061] In a possible implementation, the sample determination module 402 is further configured to: The ash sample is immersed in a set amount of hydrochloric acid to obtain an initial silica sample; The remaining initial white carbon black sample is washed with deionized water until the pH value is neutral, thereby obtaining a target white carbon black sample; The target white carbon black sample is dried at 100° C.-110° C. to obtain a white carbon black sample.

[0062] In a possible implementation, the sample testing module 403 is further configured to: The specific surface area test results were determined based on the specific surface area test of the silica sample using the CTAB method and the BET method.

[0063] In a possible implementation, the sample identification module 404 is further configured to: The specific surface area test results corresponding to the CTAB method and the specific surface area test results of the BET method are compared to determine the identification results.

[0064] The embodiments of this specification provide a method and device for extracting and identifying white carbon black in rubber, wherein the device for extracting and identifying white carbon black in rubber includes: crushing the rubber sample to determine the crushed sample; pre-treating the crushed sample to remove impurities to determine the white carbon black sample; performing a specific surface area test based on the white carbon black sample to determine the specific surface area test result; and performing identification based on the specific surface area test result to determine the identification result. The white carbon black in the rubber is extracted through processes such as cracking, burning, and pickling; the specific surface area correlation curves of the raw material white carbon black and the extracted white carbon black are measured and established by the BET method and the CTAB method respectively to reversely infer the specific surface area level of the white carbon black used in the rubber, thereby identifying the type of white carbon black used in the rubber.

[0065] The above is a schematic scheme of a device for extracting and identifying white carbon black in rubber of this embodiment. It should be noted that the technical scheme of the device for extracting and identifying white carbon black in rubber and the technical scheme of the method for extracting and identifying white carbon black in rubber belong to the same concept, and the details not described in detail in the technical scheme of the device for extracting and identifying white carbon black in rubber can be referred to the description of the technical scheme of the method for extracting and identifying white carbon black in rubber.

[0066] Figure 5The structure block diagram of a computing device 500 provided according to an embodiment of the present specification is shown. The components of the computing device 500 include but are not limited to a memory 510 and a processor 520. The processor 520 is connected to the memory 510 via a bus 530, and the database 550 is used to store data.

[0067] The computing device 500 also includes an access device 540 that enables the computing device 500 to communicate via one or more networks 560. Examples of these networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 540 may include one or more of any type of network interface (e.g., a network interface card (NIC)) that is wired or wireless, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a world-wide interoperability for microwave access (Wi-MAX) interface, an Ethernet interface, a universal serial bus (USB) interface, a cellular network interface, a Bluetooth interface, and a near field communication (NFC).

[0068] In one embodiment of the present specification, the above components of the computing device 500 and Figure 5 Other components not shown in the figure may also be connected to each other, for example, via a bus. It should be understood that Figure 5 The computing device structure block diagram shown is only for the purpose of illustration, and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0069] The computing device 500 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, a personal digital assistant, a laptop computer, a notebook computer, a netbook, etc.), a mobile phone (e.g., a smart phone), a wearable computing device (e.g., a smart watch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or a personal computer (PC). The computing device 500 may also be a mobile or stationary server.

[0070] The processor 520 is used to execute the following computer executable instructions, which, when executed by the processor, implement the steps of the above-mentioned method for extracting and identifying white carbon black from rubber. The above is a schematic scheme of a computing device of this embodiment. It should be noted that the technical scheme of the computing device and the technical scheme of the above-mentioned method for extracting and identifying white carbon black from rubber belong to the same concept. The details not described in detail in the technical scheme of the computing device can be found in the description of the technical scheme of the above-mentioned method for extracting and identifying white carbon black from rubber.

[0071] An embodiment of the present specification also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the above-mentioned method for extracting and identifying white carbon black from rubber.

[0072] The above is a schematic scheme of a computer-readable storage medium of this embodiment. It should be noted that the technical scheme of the storage medium and the technical scheme of the method for extracting and identifying white carbon black from rubber mentioned above belong to the same concept, and the details not described in detail in the technical scheme of the storage medium can be referred to the description of the technical scheme of the method for extracting and identifying white carbon black from rubber mentioned above.

[0073] An embodiment of the present specification also provides a computer program, wherein when the computer program is executed in a computer, the computer is instructed to execute the steps of the above-mentioned method for extracting and identifying white carbon black in rubber.

[0074] The above is a schematic scheme of a computer program of this embodiment. It should be noted that the technical scheme of the computer program and the technical scheme of the method for extracting and identifying white carbon black from rubber mentioned above are of the same concept, and the details not described in detail in the technical scheme of the computer program can be found in the description of the technical scheme of the method for extracting and identifying white carbon black from rubber mentioned above.

[0075] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0076] The computer instructions include computer program codes, which may be in source code form, object code form, executable files or some intermediate forms, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0077] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0078] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0079] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. A method for extracting and identifying white carbon black in rubber, characterized in that: include: Crushing the rubber sample to determine the crushed sample; Performing impurity removal pretreatment on the crushed sample to determine the white carbon black sample; Performing a specific surface area test on the white carbon black sample to determine a specific surface area test result; The identification result is determined based on the specific surface area test result.

2. The method according to claim 1, characterized in that: The method of performing impurity removal pretreatment on the crushed sample to determine the white carbon black sample comprises: The crushed sample is subjected to a pyrolysis treatment to determine a pyrolysis sample; The pyrolysis sample is subjected to a burning treatment to determine an ash sample; The ash sample is subjected to acid washing treatment to determine the white carbon black sample.

3. The method according to claim 3, characterized in that: The step of performing a pyrolysis treatment on the crushed sample to determine the pyrolysis sample comprises: The crushed sample was pyrolyzed at 600° C. for two hours in a nitrogen atmosphere to obtain a pyrolyzed sample.

4. The method according to claim 4, characterized in that: The step of burning the cracked sample to determine the ash sample comprises: The pyrolysis sample was burned in a box-type resistance furnace at 650° C. for five hours to obtain an ash sample.

5. The method according to claim 5, characterized in that: The step of performing pickling treatment on the ash sample to determine the white carbon black sample comprises: The ash sample is immersed in a set amount of hydrochloric acid to obtain an initial white carbon black sample; The remaining initial white carbon black sample is washed with deionized water until the pH value is neutral, thereby obtaining a target white carbon black sample; The target white carbon black sample is dried at 100° C.-110° C. to obtain a white carbon black sample.

6. The method according to claim 1, characterized in that The specific surface area test is performed based on the white carbon black sample to determine the specific surface area test result, including: The specific surface area test results are determined based on the specific surface area test of the white carbon black sample by using the CTAB method and the BET method.

7. The method according to claim 6, characterized in that The step of performing identification based on the specific surface area test result to determine the identification result comprises: The identification result is determined by comparing the specific surface area test result corresponding to the CTAB method with the specific surface area test result of the BET method.

8. A device for extracting and identifying white carbon black in rubber, characterized in that: include: A rubber crushing module is configured to crush the rubber sample and determine the crushed sample; A sample determination module is configured to perform impurity removal pretreatment on the crushed sample to determine a white carbon black sample; A sample testing module is configured to perform a specific surface area test based on the white carbon black sample and determine a specific surface area test result; The sample identification module is configured to perform identification based on the specific surface area test result to determine the identification result.

9. A computing device, characterized in that include: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the method for extracting and identifying white carbon black in rubber according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the method for extracting and identifying white carbon black in rubber as claimed in any one of claims 1 to 7.

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