Method and apparatus for determining liquid rubber content, and nonvolatile storage medium

Abstract

The application discloses a liquid rubber content determination method and device and a nonvolatile storage medium. The method comprises the following steps: obtaining information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least comprises first cracking information of the target substance; obtaining a reference data curve, wherein the reference data curve is generated according to second cracking information of each liquid rubber in a plurality of liquid rubbers; and determining the liquid rubber content of the target substance according to the first cracking information and the reference data curve. The application solves the technical problem of large detection result error caused by the method of extracting and thermogravimetric analysis of the self-repairing tire by the solvent to determine the formula of the self-repairing sealant in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber testing, in particular to a method and device for determining the content of liquid rubber, and a nonvolatile storage medium. BACKGROUND

[0002] When a vehicle is running, especially at high speed with heavy load, if the tire is punctured by a spike or other puncture object, the situation of rapid air leakage and tire burst will affect the safety of the passengers. In recent years, international well-known tire companies have been committed to the development of run-flat tires and self-repairing tires. Run-flat tires need to increase the thickness of the tire side, which changes the original structure of the tire and reduces the comfort of the tire. The self-repairing tire sprays a special sealing glue on the inner side of the tire, and when the foreign object is punctured, it quickly wraps the foreign object under the action of tire pressure, can cover a large area of the tire shoulder area, effectively repair the puncture caused by the spike and other puncture objects within a certain diameter range, provide additional protection for the tire, and effectively prevent the tire from leaking air. However, the manufacturing method of self-repairing tires has not been mastered in China at present. In order to understand the formula of self-repairing tires, it is necessary to analyze and detect the self-repairing tires. The formula of the self-repairing sealing glue is different from the traditional tire formula. Because the self-repairing sealing glue needs to have a certain fluidity, so that it can wrap the spike and other foreign objects under the action of tire pressure; but the fluidity cannot be too large, so as to prevent lag during high-speed operation of the tire, so the crosslinking density of the formula is relatively low, and liquid rubber is often used in the formula.

[0003] In the related art, the solvent extraction and thermogravimetric analysis method is used to analyze and detect the self-repairing tire to determine the content of liquid rubber. However, the solvent can dissolve various materials in the tire, affecting the detection result, and therefore, there is a problem of large error in the detection result.

[0004] At present, no effective solution has been proposed for the above problems. SUMMARY

[0005] The embodiments of the present application provide a method and device for determining the content of liquid rubber, and a nonvolatile storage medium, to at least solve the technical problem of large error in the detection result caused by the related art method of extracting and thermogravimetric analysis of self-repairing tires by solvent to determine the formula of self-repairing sealing glue.

[0006] According to an aspect of the embodiments of the present application, a method for determining the content of liquid rubber is provided, including: obtaining information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information includes at least first cracking information of the target substance; obtaining a reference data curve, wherein the reference data curve is generated according to second cracking information of a plurality of liquid rubbers; and determining the content of liquid rubber of the target substance according to the first cracking information and the reference data curve.

[0007] Optionally, the second cracking information of each liquid rubber includes: a plurality of first cracking products of each liquid rubber, a retention time of each first cracking product in the plurality of first cracking products, and a first peak area of each first cracking product in a chromatogram of the liquid rubber, wherein the liquid rubbers with the same plurality of first cracking products are liquid rubbers of the same type, and the first peak area is an integral value of the concentration of each first cracking product in the chromatogram.

[0008] Optionally, the second cracking information of each liquid rubber is obtained by: performing thermal cracking and gas phase analysis on each liquid rubber by a target detector under the condition that the needle temperature is in a first preset interval and the furnace temperature is in a second preset interval, to obtain the second cracking information of each liquid rubber, wherein the time for performing thermal cracking on the liquid rubber is a preset time length; and the chromatogram of the liquid rubber is generated by: obtaining the second cracking information of each liquid rubber sent by the target detector, and generating the chromatogram of each liquid rubber according to the second cracking information of each liquid rubber, wherein the chromatogram of each liquid rubber is in the form of a coordinate graph, the horizontal coordinate of the coordinate graph is the retention time, and the vertical coordinate of the coordinate graph is the value of the electric signal, wherein the value of the electric signal is used to indicate the concentration of each first cracking product.

[0009] Optionally, the reference data curve is generated by: obtaining the mass of each liquid rubber and the chromatogram of each liquid rubber; determining the first peak area of each first cracking product of each liquid rubber in the chromatogram; determining the mass of the liquid rubber as the independent variable and the first peak area as the dependent variable; generating a plurality of functions corresponding to each liquid rubber according to the independent variable and the dependent variable; fitting the plurality of functions to obtain a first target function, and determining the curve corresponding to the first target function as the reference data curve.

[0010] Optionally, the first cracking information of the target substance includes: a plurality of second cracking products of the target substance, a retention time of each second cracking product in the plurality of second cracking products, and a second peak area of each second cracking product in a chromatogram of the target substance; determining the liquid rubber content of the target substance according to the first cracking information and the reference data curve includes: determining a plurality of third cracking products same as the plurality of first cracking products in the plurality of second cracking products, and determining a third peak area of the plurality of third cracking products in the chromatogram of the target substance, wherein the third peak area is a sum of peak areas of each third cracking product in the plurality of third cracking products in the chromatogram of the target substance; determining a first mass of the liquid rubber in the target substance according to the third peak area and a first objective function; obtaining a second mass of the target substance, and determining the liquid rubber content of the target substance according to the first mass and the second mass.

[0011] Optionally, determining the first mass of the liquid rubber in the target substance according to the third peak area and the first objective function includes: replacing a dependent variable in the first objective function with the third peak area to obtain a second objective function after replacement; and determining a value of an independent variable in the second objective function as the first mass of the liquid rubber in the target substance.

[0012] Optionally, determining the liquid rubber content of the target substance according to the first mass and the second mass includes: determining a ratio of the first mass to the second mass as the liquid rubber content of the target substance.

[0013] According to another aspect of the embodiments of the present application, a device for determining a liquid rubber content is also provided, including: a first obtaining module configured to obtain information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance; a second obtaining module configured to obtain a reference data curve, wherein the reference data curve is generated according to second cracking information of each liquid rubber in a plurality of liquid rubbers; and a determining module configured to determine the liquid rubber content of the target substance according to the first cracking information and the reference data curve.

[0014] According to another aspect of the embodiments of the present application, a non-volatile storage medium having a computer program stored therein is also provided, wherein a device in which the non-volatile storage medium is located executes the above-mentioned method for determining a liquid rubber content by running the computer program.

[0015] According to another aspect of the embodiments of the present application, an electronic device is also provided, including a memory and a processor, the memory having a computer program stored therein, and the processor being configured to execute the above-mentioned method for determining a liquid rubber content by running the computer program.

[0016] In the embodiment of the present application, the information of the target substance is obtained, wherein the target substance is the self-repairing sealant to be detected, and the information at least includes the first cracking information of the target substance; the reference data curve is obtained, wherein the reference data curve is generated according to the second cracking information of each liquid rubber in the plurality of liquid rubbers; and the liquid rubber content of the target substance is determined according to the first cracking information and the reference data curve. Through the cracking of the self-repairing sealant for manufacturing the self-repairing sealing tire, the relationship curve between the liquid rubber mass and the cracking product peak area is established, the content of the liquid rubber in the self-repairing sealant is determined according to the relationship curve between the liquid rubber mass and the cracking product peak area, the cracking results of different materials are given different characteristics, the purpose of avoiding the influence of the detection result by other irrelevant materials in the self-repairing sealant is achieved, the technical effect of improving the accuracy of the detection result is realized, and the technical problem of large detection result error caused by the method of extracting and thermogravimetric analysis of the self-repairing tire by the related technology to determine the formula of the self-repairing sealant is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0018] Figure 1 is a hardware structure block diagram of a computer terminal (or mobile device) for implementing a determination method of liquid rubber content according to an embodiment of the present application;

[0019] Figure 2 is a step flow chart of a determination method of liquid rubber content according to an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of a chromatogram according to an embodiment of the present application;

[0021] Figure 4 is a structure diagram of a determination device of liquid rubber content according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are intended to distinguish similar objects and not necessarily to describe a particular sequential or chronological order. It is to be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in orders other than those illustrated or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, processes, methods, systems, products, or devices that include a series of steps or units are not necessarily limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products, or devices.

[0024] In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are explained as follows:

[0025] Furnace temperature: refers to the holding temperature of the cracking tube in the thermal cracker; the temperature of the cracking tube in the thermal cracker is controlled within a preset furnace temperature range to prevent condensation of the cracking products; the furnace temperature is usually determined according to the properties of the sample and the desired analysis results.

[0026] Needle temperature: refers to the temperature control in the thermal cracker, mainly to control the temperature of the sample injection needle, which is used to receive the thermal cracking products and send them to the gas chromatograph for gas analysis; the setting of the needle temperature is usually determined according to the properties of the sample and the required analysis results.

[0027] Thermogravimetry: an analytical technique for measuring the mass change of a material at different temperatures; thermogravimetric analysis technique determines the thermal decomposition characteristics and other thermal properties of the sample by analyzing the relationship between mass change and temperature.

[0028] In the related art, the formula of the self-repairing sealant is determined based on multiple identical self-repairing tire samples, an organic additive is extracted from one of the self-repairing tire samples by using a solvent extraction method, the content of the solvent extract is taken as the content of the organic additive, a thermal gravimetric method is used to perform thermal gravimetric analysis on another self-repairing tire sample in a nitrogen atmosphere at 70-550 DEG C, and a thermal gravimetric analysis result is obtained, the thermal gravimetric analysis result is subtracted from the result of the solvent extraction, and the content of the rubber hydrocarbon is obtained. However, for the self-repairing sealant containing liquid rubber, since the molecular weight of the liquid rubber is small and the crosslinking density is low, the solvent will extract the liquid rubber while extracting the organic additive, which will result in inaccurate results of the solvent extraction. On the other hand, the oil content in some formulas is high, the oil cannot be completely extracted by the solvent, and the weight loss temperature of the oil overlaps with the weight loss temperature of the liquid rubber, which will also result in inaccurate test results. Therefore, the traditional tire rubber analysis method has the problem of large error in the rubber hydrocarbon content obtained by testing. In order to solve this problem, the related solutions are provided in the embodiments of the present application, which are described in detail below.

[0029] According to the embodiments of the present application, a method for determining the content of liquid rubber is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] The method embodiments provided by the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 A hardware structure block diagram of a computer terminal (or mobile device) for implementing the method for determining the content of liquid rubber is shown. As shown in Figure 1 , the computer terminal 10 (or mobile device 10) can include one or more processors 102 (the processor 102 can include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it can also include a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which can be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. Those skilled in the art can understand, Figure 1 that the structure shown is only schematic, and does not limit the structure of the above-mentioned electronic device. For example, the computer terminal 10 can include more or fewer components than those shown in Figure 1 , or have a different configuration from Figure 1 .

[0031] It should be noted that the one or more processors 102 and / or other data processing circuitry described above can be generally referred to herein as "data processing circuitry". The data processing circuitry can be embodied in whole or in part as software, hardware, firmware, or any combination thereof. In addition, the data processing circuitry can be a single standalone processing module, or incorporated in whole or in part within any of the other elements of the computer terminal 10 (or mobile device). As referred to in embodiments of the present application, the data processing circuitry functions as a processor to control, for example, the selection of the variable resistance terminal path connected to the interface.

[0032] The memory 104 can be used to store software programs and modules of application software, such as program instructions / data storage means corresponding to the method for determining the content of liquid rubber in embodiments of the present application. The processor 102 can execute various functional applications and data processing by running the software programs and modules stored in the memory 104, i.e. implement the method for determining the content of liquid rubber described above. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include a memory disposed remotely with respect to the processor 102, which can be connected to the computer terminal 10 through a network. Examples of the network can include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0033] The transmission device 106 is used to receive or send data via a network. Specific examples of the network can include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a network adapter (NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0034] The display can be, for example, a touch screen type liquid crystal display (LCD), which can enable a user to interact with the user interface of the computer terminal 10 (or mobile device).

[0035] Figure 2 is a step flow chart of the method for determining the content of liquid rubber according to embodiments of the present application, as shown in Figure 2 The method includes the following steps:

[0036] In step S202, information of the target substance is obtained, wherein the target substance is the self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance.

[0037] To improve the accuracy of the detection result, in the determination of the content of the liquid rubber in the self-repairing sealant, one portion of the self-repairing sealant is usually classified into multiple samples for measurement, wherein each sample is a hot foil coated with the liquid rubber; in step S202, the cracking result (i.e., the first cracking information) of the self-repairing sealant (i.e., the target substance) in each sample to be detected and the information of the sample to be detected (i.e., the information of the target substance) are obtained when each sample is subjected to thermal cracking.

[0038] In step S204, reference data curves are obtained, wherein the reference data curves are generated according to the second cracking information of the multiple liquid rubbers.

[0039] In step S204, the data curves (i.e., the reference data curves) generated according to the (second) cracking information of the liquid rubbers and used to represent the relationship between the mass of the liquid rubber and the cracking product of the liquid rubber are obtained.

[0040] According to an optional embodiment of the present application, the second cracking information of each liquid rubber includes: multiple first cracking products of each liquid rubber, the retention time of each first cracking product, and the first peak area of each first cracking product in the chromatogram of the liquid rubber, wherein the liquid rubbers with the same multiple first cracking products belong to the same type of liquid rubber, and the first peak area is the integral value of the concentration of each first cracking product in the chromatogram.

[0041] The result (i.e., the second cracking information) of the thermal cracking of the liquid rubber mentioned in step S204 includes: multiple cracking products (i.e., the first cracking products) of the liquid rubber, the retention time of each cracking product, and the (first) peak area of each cracking product in the chromatogram of the liquid rubber. Wherein, the chemical substances (i.e., the first cracking products) constituting the liquid rubber are obtained when the liquid rubber is subjected to thermal cracking; since the liquid rubber is continuously heated in a preset temperature range when the liquid rubber is subjected to thermal cracking, and different chemical substances correspond to different decomposition temperatures, therefore, multiple chemical substances constituting the liquid rubber and the retention time corresponding to each chemical substance (i.e., the first cracking product) can be detected in the thermal cracking process; the (first) peak area of each (first) cracking product is obtained by integrating the curve corresponding to the (first) cracking product in the chromatogram. For example, the (first) cracking product of the thermal cracking of the liquid rubber includes isobutene, and the second cracking information is the retention time of isobutene and the peak area of isobutene in the chromatogram of the liquid rubber.

[0042] According to an optional embodiment of the present application, the second pyrolysis information of each liquid rubber is obtained by the following method: the target detector is used to perform thermal pyrolysis and gas phase analysis on each liquid rubber under the condition that the needle temperature is in a first preset interval and the furnace temperature is in a second preset interval, and the second pyrolysis information of each liquid rubber is obtained, wherein the time for thermal pyrolysis of the liquid rubber is a preset time length; the chromatogram of the liquid rubber is generated by the following method: the second pyrolysis information of each liquid rubber sent by the target detector is obtained, and the chromatogram of each liquid rubber is generated according to the second pyrolysis information of each liquid rubber, wherein the chromatogram of each liquid rubber is in the form of a coordinate graph, the horizontal coordinate of the coordinate graph is the retention time, and the vertical coordinate of the coordinate graph is the value of the electric signal, wherein the value of the electric signal is used to indicate the concentration of each first pyrolysis product.

[0043] In the method provided in the embodiments of the present application, the needle temperature and the furnace temperature for pyrolysis need to be set before thermal pyrolysis of the liquid rubber or the self-repairing sealant (i.e. the target substance), wherein the needle temperature and the furnace temperature are set according to the substance to be pyrolyzed and the pyrolysis product to be obtained, the furnace temperature is the holding temperature of the pyrolysis tube in the thermal pyrolyzer, and the needle temperature is the temperature of the sample injection needle in the thermal pyrolysis process. The setting of the needle temperature and the furnace temperature has an important influence on the analysis results of the thermal pyrolysis-gas chromatography instrument. Accurate needle temperature and furnace temperature can improve the pyrolysis efficiency of the sample and the gas chromatography separation effect, thereby obtaining accurate analysis results. Since the method provided in the embodiments of the present application uses a thermal pyrolysis-gas chromatography instrument (i.e. the target detector) to jointly perform thermal pyrolysis analysis and gas chromatography analysis, the needle temperature and the furnace temperature need to be set in advance and stored in the system for performing the method for determining the content of the liquid rubber. In the present embodiment, before thermal pyrolysis, the temperature of the pyrolysis tube (i.e. the furnace temperature) of the thermal pyrolyzer is maintained in the furnace temperature temperature interval (i.e. the second preset interval); and the temperature of the sample injection needle is maintained in the preset needle temperature temperature interval (i.e. the first preset interval); for example, the furnace temperature is maintained at 350 (degrees Celsius) ± 10°C, and the needle temperature is maintained at 300°C ± 10°C. Next, each liquid rubber sample is subjected to thermal pyrolysis in a preset pyrolysis time length in a Curie point heating manner; and the pyrolysis product is received by the sample injection needle, and the pyrolysis product is subjected to gas phase analysis; and the (second) pyrolysis information of the liquid rubber is output. The (second) pyrolysis information of the liquid rubber is output in the form of a chromatogram, wherein the chromatogram of the liquid rubber is a coordinate graph with the retention time as the horizontal coordinate and the value of the electric signal (such as the voltage value) corresponding to the retention time as the vertical coordinate; the electric signal value (such as the voltage value) in the chromatogram is used to represent the concentration of the pyrolysis product, wherein the concentration of the pyrolysis product and the value of the electric signal are in a positive proportional relationship, and the greater the concentration of the pyrolysis product, the greater the value of the electric signal. Figure 3 is a schematic diagram of a chromatogram, such as Figure 3As shown in FIG. 1, the pyrolysis products of the liquid rubber obtained by the thermal pyrolysis-gas chromatography analysis include butadiene, isoprene, 4-vinylcyclohexene, styrene and dipentene; wherein the retention time of each pyrolysis product is determined by the data curve corresponding to the pyrolysis product; specifically, the maximum concentration of the pyrolysis product is determined according to the data curve corresponding to the pyrolysis product, and the retention time corresponding to the maximum concentration is determined as the retention time of the pyrolysis product; for example, Figure 3 As shown in FIG. 1, the voltage value corresponding to the maximum concentration of butadiene is 2 volts (V), the abscissa (x) corresponding to 2V in the data curve of butadiene is 2.5 minutes (min), and thus the retention time of butadiene is 2.5 min; the voltage value corresponding to the maximum concentration of isoprene is 2V, the abscissa (x) corresponding to 2V in the data curve of isoprene is 5.0 min, and thus the retention time of isoprene is 5 min; the voltage value corresponding to the maximum concentration of 4-vinylcyclohexene is 1.0V, the abscissa (x) corresponding to 1.0V in the data curve of 4-vinylcyclohexene is 8.75 min, and thus the retention time of 4-vinylcyclohexene is 8.75 min; the voltage value corresponding to the maximum concentration of styrene is 0.5V, the abscissa (x) corresponding to 0.5V in the data curve of styrene is 13.75 min, and thus the retention time of styrene is 13.75 min; the voltage value corresponding to the maximum concentration of dipentene is 1.8V, the abscissa (x) corresponding to 1.8V in the data curve of dipentene is 21.25 min, and thus the retention time of dipentene is 21.25 min. In addition, the peak area of each pyrolysis product is obtained by integration, for example, in FIG. 1, the peak area of butadiene is obtained by integrating the data curve of butadiene with the abscissa (x) from the starting point to the ending point. Figure 3

[0044] It should be noted that before the thermal pyrolysis-gas chromatography analysis, it is necessary to confirm whether the thermal pyrolysis environment meets the preset conditions; specifically, the thermal pyrolysis-gas chromatography analysis is carried out in nitrogen, air and hydrogen, and thus the gas purity, gas partial pressure and total gas pressure in the three environments need to be confirmed in sequence.

[0045] According to some optional embodiments of the present application, the reference data curve is generated by the following method: obtaining the mass of each liquid rubber and the chromatogram of each liquid rubber; determining the first peak area of each first pyrolysis product of each liquid rubber in the chromatogram; determining the mass of the liquid rubber as the independent variable and the first peak area as the dependent variable; generating a plurality of functions corresponding to each liquid rubber according to the independent variable and the dependent variable; fitting the plurality of functions to obtain a first target function, and determining the curve corresponding to the first target function as the reference data curve.

[0046] ​In some optional embodiments, in order to ensure the accuracy of the reference data curve, the liquid rubber is applied on the plurality of hot foils as a plurality of samples, and the thermal cracking-gas phase analysis is performed on each sample. Therefore, the chromatogram corresponding to each liquid rubber sample can be obtained. The method provided in the embodiments of the present application fits the curves in the plurality of chromatograms to obtain the fitting result as the reference data curve. The reference data curve is expressed in the form of a function. In the function of the reference data curve, the peak area of the cracking product in the chromatogram is taken as the dependent variable (y), and the mass of the liquid rubber sample is taken as the independent variable (x) to generate the function y=kx+b corresponding to the reference data curve, wherein k is the slope of the reference data curve. The linear relationship between the mass (x) of the liquid rubber and the peak area (y) of any cracking product of the liquid rubber in the chromatogram can be determined by solving k in the reference data curve.

[0047] It should be further noted that, according to the type of the liquid rubber as the sample, if the liquid rubber has only one cracking product, only one reference data curve is obtained; if the liquid rubber has a plurality of cracking products, a plurality of reference data curves are obtained, wherein each reference data curve in the plurality of reference data curves corresponds to a different cracking product.

[0048] In step S206, the liquid rubber content of the target substance is determined according to the first cracking information of the self-repairing sealant (i.e., the target substance) and the data curve (i.e., the reference data curve) used to represent the relationship between the mass of the liquid rubber and the cracking product of the liquid rubber.

[0049] In step S206, the liquid rubber content of the target substance is determined according to the first cracking information of the self-repairing sealant (i.e., the target substance) and the data curve (i.e., the reference data curve) used to represent the relationship between the mass of the liquid rubber and the cracking product of the liquid rubber.

[0050] According to an optional embodiment of the present application, the first cracking information of the target substance includes a plurality of second cracking products of the target substance, the retention time of each second cracking product in the plurality of second cracking products, and the second peak area of each second cracking product in the chromatogram of the target substance. The liquid rubber content of the target substance is determined according to the first cracking information and the reference data curve, including determining a plurality of third cracking products same as the plurality of first cracking products in the plurality of second cracking products and determining the third peak area of the plurality of third cracking products in the chromatogram of the target substance, wherein the third peak area is the sum of the peak area of each third cracking product in the plurality of third cracking products in the chromatogram of the target substance. The first mass of the liquid rubber in the target substance is determined according to the third peak area and the first target function. The second mass of the target substance is obtained, and the liquid rubber content of the target substance is determined according to the first mass and the second mass.

[0051] In the present embodiment, the thermal cracking-gas phase analysis method described above is used to perform thermal cracking and gas phase analysis on the self-repairing sealant (i.e. the target substance), thereby obtaining (first) cracking information of the self-repairing sealant (i.e. the target substance). The (first) cracking information of the self-repairing sealant (i.e. the target substance) includes: a plurality of (second) cracking products of the self-repairing sealant (i.e. the target substance), a retention time of each (second) cracking product, and a (second) peak area of each (second) cracking product in a chromatogram of the self-repairing sealant (i.e. the target substance). It should be noted that the thermal cracking-gas phase analysis process of the self-repairing sealant is the same as that of the liquid rubber, and the method for generating the chromatogram of the self-repairing sealant is the same as that of the liquid rubber. In the present embodiment, after obtaining the (first) cracking information of the self-repairing sealant (i.e. the target substance), the content of the liquid rubber in the self-repairing sealant (i.e. the target substance) is determined according to the (first) cracking information of the self-repairing sealant (i.e. the target substance) and the target data curve determined by the above method. The specific method is as follows: determining a (third) cracking product in the (second) cracking product of the self-repairing sealant (i.e. the target substance) which is the same as the (first) cracking product of the liquid rubber; determining the chromatogram of the self-repairing sealant (i.e. the target substance) in which the above-mentioned (third) cracking product exists, and determining the peak area of the (third) cracking product in the chromatogram of the self-repairing sealant (i.e. the target substance), and determining the sum of the peak areas of the (third) cracking product in the chromatogram of each self-repairing sealant (i.e. the target substance) as a third peak area, wherein the third peak area represents the sum of the concentrations of the (third) cracking product in all samples. For example, if butadiene is included in the cracking products of the self-repairing sealant and the liquid rubber, then butadiene is the (third) cracking product; the peak area of butadiene in the chromatogram of each self-repairing sealant sample is a second peak area, and the sum of the plurality of second peak areas is the third peak area, which represents the concentration of butadiene in all self-repairing sealant samples. After determining the common cracking product (i.e. the (third) cracking product) of the self-repairing sealant (i.e. the target substance) and the liquid rubber, and the concentration (i.e. the third peak area) of the common cracking product (i.e. the (third) cracking product) in all target substances (i.e. the target substance), the mass (i.e. the first mass) of the common cracking product (i.e. the (third) cracking product) in all target substances (i.e. the target substance) is determined by the third peak area and the reference data curve obtained in the above step; and the content of the liquid rubber in the self-repairing sealant (i.e. the target substance) is determined according to the mass (i.e. the first mass) of the common cracking product (i.e. the (third) cracking product) and the (second) mass of all target substances (i.e. the target substance) obtained.

[0052] It should be noted that if there are multiple identical cleavage products (i.e. the third cleavage product) in the target substance (i.e. the self-repairing sealant) and the reference substance (i.e. the liquid rubber), the concentration and the mass of each (third) cleavage product in the total target substance (i.e. the self-repairing sealant) need to be determined by the above scheme.

[0053] According to an optional embodiment of the present application, the first mass of the liquid rubber in the target substance is determined according to the third peak area and the first objective function, including: replacing the dependent variable in the first objective function with the third peak area to obtain a second objective function after replacement; and determining the value of the independent variable in the second objective function as the first mass of the liquid rubber in the target substance.

[0054] In the present embodiment, the mass (i.e. the first mass) of the common cleavage product (i.e. the third cleavage product) in the total target substance (i.e. the target substance) is determined by the following method: replacing the dependent variable y in the function y = kx + b corresponding to the reference curve with the concentration (i.e. the third peak area) of the common cleavage product (i.e. the third cleavage product) in the total target substance (i.e. the target substance) to generate a function after replacement (i.e. a second objective function); and the independent variable x (i.e. the independent variable in the second objective function) obtained after replacement is the mass (i.e. the first mass) of the third cleavage product in the total target substance (i.e. the target substance).

[0055] According to some other optional embodiments of the present application, the liquid rubber content of the target substance is determined according to the first mass and the second mass, including: determining the ratio of the first mass to the second mass as the liquid rubber content of the target substance.

[0056] The ratio of the mass (i.e. the first mass) of the common cleavage product (i.e. the third cleavage product) in the total target substance (i.e. the target substance) to the (second) mass of the total target substance (i.e. the self-repairing sealant) is the content of the liquid rubber in the target substance, wherein the content of the liquid rubber in the target substance (i.e. the self-repairing sealant) is expressed in percentage.

[0057] It should be noted that for each target sample, the above steps are used to detect the content of the liquid rubber in the sample; and finally, the detection results of each group of samples are comprehensively calculated (e.g. taking the average value or the median value) to determine the content of the liquid rubber in the self-repairing sealant, so as to improve the accuracy of the detection results.

[0058] By the above steps, the content of liquid rubber in the self-repairing sealant is determined by jointly using the thermal cracking analysis technology and the gas chromatography analysis technology; compared with the method of using organic solvent extraction, the joint use of the thermal cracking analysis technology and the gas chromatography analysis technology has the advantages of simple operation, resource saving and safety and environmental protection; in addition, since the temperature and thermal cracking products of different materials are different, the method also has the advantage that the detection result will not be affected by other components in the formula; when detecting the content of liquid rubber in the self-sealing adhesive, the technical effect of improving the accuracy of the detection result can be achieved.

[0059] Figure 4 is a structural diagram of a liquid rubber content determination device according to an embodiment of the present application, as shown in Figure 4 the liquid rubber content determination device comprises: a first acquisition module 40, configured to acquire information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance; a second acquisition module 42, configured to acquire a reference data curve, wherein the reference data curve is generated according to second cracking information of each liquid rubber in a plurality of liquid rubbers; and a determination module 44, configured to determine the liquid rubber content of the target substance according to the first cracking information and the reference data curve.

[0060] Before the liquid rubber content determination device starts to work, the purity of nitrogen in the gas chromatograph is 99.999%, the partial pressure is 500 kiloPascal (kPa), and the total pressure is greater than 1 megaPascal (MPa); the purity of air is 99.999%, the partial pressure is 500 kPa, and the total pressure is greater than 1 MPa; and the purity of hydrogen is 99.999%, the partial pressure is 500 kPa, and the total pressure is greater than 1 MPa; after that, the heat cracker is heated at 590°C in a way that the Curie point is heated, and the sample of the target substance (i.e. the self-repairing sealant) and the liquid rubber carried by the hot foil are heated and cracked for 3 seconds at a furnace temperature of 350 degrees Celsius (℃) and a needle temperature of 300°C; and the cracking results of the target substance (i.e. the self-repairing sealant) and the liquid rubber are analyzed by the gas chromatograph, and the analysis results are output. For example, the gas chromatograph includes a gasification chamber, a flame ionization detector (FID), and a chromatographic column with a structure of fused quartz (RTX-5); the cracked products after gasification enter the gasification chamber at a flow rate of 34 milliliters (mL) / min through the total flow inlet, part of which is blown out from the purge outlet at a flow rate of 3 mL / min, and the other part flows out from the split outlet at a flow rate of 30 mL / min; the remaining part enters the chromatographic column at a flow rate of 1 mL / min, and the length of the chromatographic column is 30 meters (m), the inner diameter is 0.25 millimeters (mm), and the thickness is 0.25 micrometers (um). Next, hydrogen, nitrogen, and air are mixed at a preset ratio and input into the FID, so that the mixed gas can be ignited; for example, the preset ratio is 4:3:40, then hydrogen is blown into the detector in the FID at a flow rate of 40 mL / min, nitrogen is blown into the detector in the FID at a flow rate of 30 mL / min, and air is blown into the detector in the FID at a flow rate of 400 mL / min, so that the gas can be ignited after being mixed in the detector; and after the mixed gas is ignited, the cracked products are analyzed by gas phase analysis, and the analysis results are output. The liquid rubber content determination device starts to work, and the first acquisition module 40 acquires the (first) cracking information of the target substance (i.e. the self-repairing sealant) from the heat cracking-gas chromatograph; the second acquisition module 42 acquires the reference data curve generated according to the (second) cracking information of the liquid rubber; next, the determination module 44 determines the content of the liquid rubber in the target substance (i.e. the self-repairing sealant) to be measured according to the (first) cracking information of the target substance (i.e. the self-repairing sealant) and the reference data curve.

[0061] It should be noted that, Figure 4 The preferred embodiments of the embodiments shown can be referred to Figure 2 The related description of the embodiments shown will not be repeated here.

[0062] According to another aspect of the embodiments of the present application, a non-transitory storage medium is also provided, which stores a computer program. The device in which the non-transitory storage medium is located executes the liquid rubber content determination method described above by running the computer program.

[0063] The non-transitory storage medium described above is used to store a program for performing the following functions: obtaining information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance; obtaining a reference data curve, wherein the reference data curve is generated according to second cracking information of each of a plurality of liquid rubbers; and determining liquid rubber content of the target substance according to the first cracking information and the reference data curve.

[0064] According to another aspect of the embodiments of the present application, an electronic device is also provided, which includes a memory and a processor. The memory stores a computer program, and the processor is configured to execute the liquid rubber content determination method described above by running the computer program.

[0065] The processor in the electronic device described above is used to run a program for performing the following functions: obtaining information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance; obtaining a reference data curve, wherein the reference data curve is generated according to second cracking information of each of a plurality of liquid rubbers; and determining liquid rubber content of the target substance according to the first cracking information and the reference data curve.

[0066] It should be noted that each module in the liquid rubber content determination device described above can be a program module (for example, a set of program instructions for implementing a certain specific function) or a hardware module. For the latter, it can be in the following forms, but is not limited thereto: the forms of the modules are all processors, or the functions of the modules are implemented by one processor.

[0067] The serial numbers of the embodiments of the present application described above are only for description, and do not represent the advantages or disadvantages of the embodiments.

[0068] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0069] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented by other ways. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division mode, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, units or modules, which can be electrical or other forms.

[0070] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0071] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0072] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0073] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A method for determining the liquid rubber content, characterized in that, The method comprises the following steps: obtaining information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least comprises first cracking information of the target substance; obtaining a reference data curve, wherein the reference data curve is generated according to second cracking information of each liquid rubber in a plurality of liquid rubbers, the second cracking information of each liquid rubber comprises a plurality of first cracking products of the liquid rubber, and the reference data curve is generated by the following method: obtaining mass of the liquid rubber and a chromatogram of the liquid rubber; determining a first peak area of each first cracking product of the liquid rubber in the chromatogram; determining the mass of the liquid rubber as an independent variable and the first peak area as a dependent variable; generating a plurality of functions corresponding to the liquid rubber according to the independent variable and the dependent variable; fitting the plurality of functions to obtain a first target function, and determining a curve corresponding to the first target function as the reference data curve; determining liquid rubber content of the target substance according to the first cracking information and the reference data curve.

2. The method of claim 1, wherein, The second cracking information of each liquid rubber further comprises: a retention time of each first cracking product in the plurality of first cracking products and a first peak area of the first cracking product in a chromatogram of the liquid rubber, wherein the liquid rubbers with the same plurality of first cracking products are liquid rubbers of the same type, and the first peak area is an integral value of a concentration of the first cracking product in the chromatogram.

3. The method of claim 2, wherein, The second cracking information of each liquid rubber is obtained by the following method: performing thermal cracking and gas phase analysis on the liquid rubbers by a target detector under the condition that a needle temperature is in a first preset interval and a furnace temperature is in a second preset interval, to obtain the second cracking information of each liquid rubber, wherein a time for performing thermal cracking on the liquid rubber is a preset time length; The chromatogram of the liquid rubber is generated by the following method: obtaining the second cracking information of each liquid rubber sent by the target detector, and generating a chromatogram of each liquid rubber according to the second cracking information of each liquid rubber, wherein the chromatogram of each liquid rubber is in the form of a coordinate graph, an abscissa of the coordinate graph is the retention time, and an ordinate of the coordinate graph is a value of an electric signal, wherein the value of the electric signal is used to indicate the concentration of the first cracking product.

4. The method of claim 1, wherein, The first cracking information of the target substance comprises a plurality of second cracking products of the target substance, a retention time of each second cracking product in the plurality of second cracking products, and a second peak area of the second cracking product in a chromatogram of the target substance; determining the liquid rubber content of the target substance according to the first cracking information and the reference data curve comprises: determining a plurality of third cracking products same as the plurality of first cracking products in the plurality of second cracking products, and determining a third peak area of the plurality of third cracking products in the chromatogram of the target substance, wherein the third peak area is a sum of peak areas of each of the plurality of third cracking products in the chromatogram of the target substance; determining a first mass of the liquid rubber in the target substance according to the third peak area and the first objective function; obtaining a second mass of the target substance, and determining a liquid rubber content of the target substance according to the first mass and the second mass.

5. The method of claim 4, wherein, determining a first mass of the liquid rubber in the target substance according to the third peak area and the first objective function, comprising: replacing the dependent variable in the first objective function with the third peak area to obtain a second objective function after replacement; determining a value of the independent variable in the second objective function as the first mass of the liquid rubber in the target substance.

6. The method of claim 4, wherein, determining a liquid rubber content of the target substance according to the first mass and the second mass, comprising: determining a ratio of the first mass to the second mass as the liquid rubber content of the target substance.

7. A device for determining the liquid rubber content, characterized in that comprising: a first obtaining module, configured to obtain information of a target substance, wherein the target substance is a self-repairing sealant to be detected, and the information at least includes first cracking information of the target substance; a second obtaining module, configured to obtain a reference data curve, wherein the reference data curve is generated according to second cracking information of each of a plurality of liquid rubbers, the second cracking information of each of the liquid rubbers includes a plurality of first cracking products of the liquid rubber, and the reference data curve is generated by the following method: obtaining a mass of the liquid rubber and a chromatogram of the liquid rubber; determining a first peak area of each of the first cracking products of the liquid rubber in the chromatogram; determining the mass of the liquid rubber as an independent variable and the first peak area as a dependent variable; generating a plurality of functions corresponding to the liquid rubber according to the independent variable and the dependent variable; fitting the plurality of functions to obtain a first objective function, and determining a curve corresponding to the first objective function as the reference data curve; a determining module, configured to determine a liquid rubber content of the target substance according to the first cracking information and the reference data curve.

8. A non-volatile storage medium, characterized by The non-volatile storage medium stores a computer program, wherein a device in which the non-volatile storage medium is located executes the determination method of the liquid rubber content of any one of claims 1 to 6 by running the computer program.

9. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to execute the determination method of the liquid rubber content of any one of claims 1 to 6 by the computer program.

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