Organic material performance stability testing device and method

Abstract

The present invention provides an organic material performance stability testing device and method, which relates to the field of material testing technology, combines temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment, and enriches the types of aging treatment. The present invention enriches the test types of performance parameters of organic materials by testing at least one of thermal conductivity, oxygen index and calorific value. The present invention organically combines a variety of detection methods for organic materials, so that the detection content of organic materials is richer, the detection mechanism is more reasonable, and the accuracy of determining the material stability evaluation index is improved. The present invention can selectively perform heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment, which improves the accuracy of temperature and humidity cycle aging treatment for the material to be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of material testing, and in particular to a device and method for testing the stability of organic material performance. Background Art

[0002] With the rapid development of cities, the energy consumption of buildings in my country has increased year by year, and now accounts for more than 1 / 3 of the total social energy consumption. Building insulation materials and products are an important factor affecting building energy conservation. In recent years, with the continuous improvement of energy-saving requirements, organic materials with excellent performance, such as extruded boards, polyurethanes, molded boards, etc., have been widely used in thermal insulation and energy-saving projects due to their light weight, high strength and good thermal insulation effects. Organic thermal insulation materials have good performance and are easy to construct, but these organic thermal insulation materials also have problems such as poor bonding performance, low dimensional stability, thermal insulation performance attenuation, easy aging, and easy burning in long-term use. Many scholars at home and abroad have done a lot of research on these issues, adding flame retardants to organic materials to reduce combustion performance, and preventing and controlling material aging through various anti-aging measures.

[0003] The aging of organic materials is a complex process. Since the exterior walls of buildings are always on the outside and are in contact with air, sunlight, rain, etc. for a long time, these factors aggravate the aging of materials and seriously affect their performance.

[0004] During the use of organic materials, as time goes by, the migration of flame retardants and the exchange of gases inside and outside the pores will directly affect the combustion performance and thermal insulation performance of organic thermal insulation materials. It can be seen that the main factors affecting the stability of organic material performance include additive migration, temperature, humidity, light and ozone.

[0005] In addition, as an important measure for building energy conservation in my country, the application of external wall insulation system is becoming more and more extensive, and the performance requirements are becoming higher and higher. In particular, the frequent occurrence of external wall insulation system shedding and fire accidents in recent years has attracted more and more attention to the safety performance of external wall insulation system. As the most important component of the external insulation system, the stability of the performance of the insulation material during use will directly affect the fire, shedding safety performance and comfort performance (thermal performance) of the external insulation system. However, in the actual situation, when testing the stability performance of the external wall system, the impact of the performance stability of the important component (insulation material) is often ignored.

[0006] The existing performance stability test of organic materials only focuses on one-sided performance and does not consider the aging of multiple performances of organic materials. Therefore, the existing performance stability test of organic materials is not accurate. Summary of the invention

[0007] The present invention provides an organic material performance stability testing device and method, which are used to solve the defect that the performance stability test of organic materials in the prior art is not accurate, and improve the accuracy of the performance stability test of organic materials.

[0008] The invention provides an organic material performance stability testing device, comprising: a pre-cycle testing module, a cycle module and a post-cycle testing module; the cycle module is used for performing aging treatment on the organic material based on the material type of the organic material, the aging treatment comprising at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment; the pre-cycle testing module is used for testing a first performance parameter of the organic material based on the material type before the aging treatment, the first performance parameter comprising at least one of a first thermal conductivity, a first oxygen index and a first calorific value; the post-cycle testing module is used for testing a second performance parameter of the organic material based on the material type after the aging treatment, the second performance parameter comprising at least one of a second thermal conductivity, a second oxygen index and a second calorific value; the temperature and humidity cycle aging treatment comprises at least one of heat-rain cycle treatment, heat-cold cycle treatment and freeze-thaw cycle treatment; the second performance parameter and the first performance parameter are used for determining a material stability evaluation index of the organic material.

[0009] According to the organic material performance stability testing device provided by the present invention, the pre-cycle test module includes a first thermal conductivity tester, a first oxygen index tester and a first oxygen and nitrogen calorimeter, the cycle module includes a temperature and humidity cycle unit, an ultraviolet aging unit and an ozone aging unit, and the post-cycle test module includes a second thermal conductivity tester, a second oxygen index tester and a second oxygen and nitrogen calorimeter.

[0010] According to the organic material performance stability testing device provided by the present invention, the ultraviolet aging unit includes at least one of a UVA-340 fluorescent ultraviolet lamp, a UVA-351 fluorescent ultraviolet lamp, a UVB-313 fluorescent lamp and a FS40 fluorescent lamp.

[0011] The present invention also provides an organic material performance stability testing method, which is applied to any of the above-mentioned organic material performance stability testing devices, and includes: a pre-cycle testing module tests a first performance parameter of the organic material based on the material type, the first performance parameter includes at least one of a first thermal conductivity, a first oxygen index and a first calorific value; a cycle module performs aging treatment on the organic material based on the material type, the aging treatment includes at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment; the temperature and humidity cycle aging treatment includes at least one of heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment; a post-cycle testing module tests a second performance parameter of the organic material based on the material type, the second performance parameter includes at least one of a second thermal conductivity, a second oxygen index and a second calorific value; based on the second performance parameter and the first performance parameter, a material stability evaluation index of the organic material is determined.

[0012] According to the method for testing the performance stability of organic materials provided by the present invention, the first performance parameter includes a first thermal conductivity, a first oxygen index and a first calorific value, the second performance parameter includes a second thermal conductivity, a second oxygen index and a second calorific value, and the calculation formula of the material stability evaluation index is: ; in, is the material stability evaluation index, is the second thermal conductivity, is the first thermal conductivity, is the second oxygen index, is the first oxygen index, is the second calorific value, is the first calorific value, is the change rate of thermal properties of organic materials, is the oxygen index change rate of organic materials, is the rate of change of calorific value of organic materials.

[0013] According to the method for testing the performance stability of organic materials provided by the present invention, the heat-rain cycle treatment includes 0 to 360 heat-rain cycles, the heat-cold cycle treatment includes 0 to 30 heat-cold cycles, and the freeze-thaw cycle treatment includes 0 to 60 freeze-thaw cycles. After each heat-rain cycle or heat-cold cycle or freeze-thaw cycle, the organic material is placed for 3 to 10 hours to perform the next heat-rain cycle or heat-cold cycle or freeze-thaw cycle.

[0014] According to the method for testing the performance stability of organic materials provided by the present invention, the duration of ultraviolet aging treatment includes 0 to 1500 hours, and the duration of ozone aging treatment includes 0 to 300 hours.

[0015] According to the method for testing the performance stability of organic materials provided by the present invention, each heat-rain cycle includes: first heating the organic material for 0.5 to 3 hours so that the temperature of the organic material rises to 65°C to 90°C within 0 to 1 hour, and maintaining the temperature of the organic material at (65°C to 90°C) ±5°C during the heating process, then using water with a temperature of 10°C to 30°C to sprinkle the organic material for 0.5 to 3 hours, and finally allowing the organic material to stand for 1 to 5 hours.

[0016] According to the method for testing the performance stability of organic materials provided by the present invention, each heat-cooling cycle includes: first heating the organic material for 5 to 16 hours so that the temperature of the organic material rises to 40°C to 55°C within 0 to 3 hours, and maintaining the temperature of the organic material at (40°C to 55°C) ±5°C during the heating process, and then cooling the organic material for 10 to 42 hours so that the temperature of the organic material drops to -25°C to -10°C within 0 to 3 hours, and maintaining the temperature of the organic material at (-25°C to -10°C) ±5°C during the cooling process.

[0017] According to the method for testing the performance stability of organic materials provided by the present invention, each freeze-thaw cycle includes: first, water at a temperature of 10°C to 30°C is used to spray the organic material for 0.5 to 16 hours, then the temperature of the organic material is reduced to -25°C to -10°C within 0 to 3 hours, and the temperature of the organic material is maintained at (-25°C to -10°C) ±5°C for 4 to 24 hours.

[0018] The device and method for testing the performance stability of organic materials provided by the present invention combine temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment, thereby enriching the types of aging treatment. The present invention enriches the types of testing performance parameters of organic materials by testing at least one of thermal conductivity, oxygen index and calorific value. The present invention organically combines a variety of detection methods for organic materials, thereby enriching the detection content of organic materials, making the detection mechanism more reasonable, and improving the accuracy of determining the material stability evaluation index. The present invention can selectively perform heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment, thereby improving the accuracy of temperature and humidity cycle aging treatment of the material to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the organic material performance stability testing device provided by the present invention.

[0021] Figure 2 It is a schematic flow chart of the method for testing the performance stability of organic materials provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Combine the following Figure 1-Figure 2 The invention describes an organic material performance stability testing device and method.

[0024] Figure 1 Schematic diagram of the structure of the device for testing the stability of organic material performance provided by the present invention. Figure 1 As shown, an organic material performance stability testing device includes: a pre-cycle testing module 101, a cycle module 102 and a post-cycle testing module 103.

[0025] The circulation module is used to perform aging treatment on the organic material based on the material type of the organic material, and the aging treatment includes at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment.

[0026] The pre-cycle test module is used to test a first performance parameter of the organic material based on the material type before the aging treatment, wherein the first performance parameter includes at least one of a first thermal conductivity, a first oxygen index and a first calorific value.

[0027] The post-cycle test module is used to test a second performance parameter of the organic material based on the material type after the aging treatment, and the second performance parameter includes at least one of a second thermal conductivity, a second oxygen index and a second calorific value.

[0028] The temperature and humidity cycle aging treatment includes at least one of heat-rain cycle treatment, heat-cold cycle treatment and freeze-thaw cycle treatment.

[0029] The second performance parameter and the first performance parameter are used to determine a material stability evaluation index of the organic material.

[0030] The pre-cycle test module includes a first thermal conductivity tester, a first oxygen index tester and a first oxygen-nitrogen calorimeter, the cycle module includes a temperature and humidity cycle unit, an ultraviolet aging unit and an ozone aging unit, and the post-cycle test module includes a second thermal conductivity tester, a second oxygen index tester and a second oxygen-nitrogen calorimeter.

[0031] The organic material performance stability test device consists of three parts: a pre-cycle test module, a cycle module, and a post-cycle test module. The pre-cycle test module consists of a first thermal conductivity tester, a first oxygen index tester, and a first oxygen-nitrogen calorimeter. The cycle module consists of a temperature and humidity cycle unit, an ultraviolet aging unit, and an ozone aging unit. The post-cycle test module consists of a second thermal conductivity tester, a second oxygen index tester, and a second oxygen-nitrogen calorimeter.

[0032] The material types of organic materials include weather-resistant materials, UV-resistant materials, and ozone-resistant materials. The material type of the organic material is input into the organic material performance stability testing device, and before the organic material is subjected to aging treatment, the first performance parameter is tested according to its material type. The first performance parameter includes at least one of a first thermal conductivity, a first oxygen index, and a first calorific value. For example, if the organic material is a weather-resistant material, a UV-resistant material, and an ozone-resistant material at the same time, three identical organic materials are obtained before the aging treatment, and the first thermal conductivity, the first oxygen index, and the first calorific value of each organic material are measured.

[0033] The first thermal conductivity tester is used to test the first thermal conductivity. The first oxygen index tester is used to test the first oxygen index. The first oxygen-nitrogen calorimeter is used to test the first calorific value.

[0034] After testing the first performance parameter of the organic material, the tested material is subjected to aging treatment according to the material type, and the aging treatment includes at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment. For example, if the organic material is a weather-resistant material, an ultraviolet aging-resistant material and an ozone-resistant material at the same time, the temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment are respectively performed on three portions of the organic material.

[0035] The temperature and humidity cycle unit is used for temperature and humidity cycle aging treatment. The ultraviolet aging unit is used for ultraviolet aging treatment. The ozone aging unit is used for ozone aging treatment.

[0036] Furthermore, the temperature and humidity cycle unit may select one or more of heat-rain cycle treatment, heat-cold cycle treatment and freeze-thaw cycle treatment to perform temperature and humidity cycle aging treatment on the organic material.

[0037] After the organic material is aged, the second performance parameter is tested according to the material type. The second performance parameter includes at least one of a second thermal conductivity, a second oxygen index, and a second calorific value. For example, if the organic material is a weather-resistant material, a UV-resistant aging material, and an ozone-resistant material, the second thermal conductivity, the second oxygen index, and the second calorific value of the organic material are measured after the aging treatment.

[0038] The second thermal conductivity tester is used to test the second thermal conductivity. The second oxygen index tester is used to test the second oxygen index. The second oxygen-nitrogen calorimeter is used to test the second calorific value.

[0039] A material stability evaluation index of the organic material is calculated according to the second performance parameter and the first performance parameter.

[0040] The ultraviolet aging unit includes at least one of a UVA-340 fluorescent ultraviolet lamp, a UVA-351 fluorescent ultraviolet lamp, a UVB-313 fluorescent lamp and a FS40 fluorescent lamp.

[0041] The present invention improves the environment of artificially simulated ultraviolet irradiation by arranging one or more fluorescent ultraviolet lamps and fluorescent lamps, which is beneficial to improving the accuracy of ultraviolet aging treatment of organic materials.

[0042] The present invention combines a thermal conductivity tester, an oxygen index tester and an oxygen-nitrogen calorimeter to achieve measurement of various performance parameters of organic materials. It combines a temperature and humidity cycle unit, an ultraviolet aging unit and an ozone aging unit to achieve various aging treatments of organic materials.

[0043] Furthermore, the organic material performance stability testing device of the present invention can individually evaluate the thermal properties of organic materials and the degree of flame retardant attenuation; and provide a material performance stability evaluation index (Performance of Material Stability Index, PFMS), which makes the evaluation more reasonable and is conducive to the healthy development of the organic thermal insulation material industry.

[0044] The organic material performance stability testing device provided by the present invention combines temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment, thereby enriching the types of aging treatment. The present invention enriches the types of testing of performance parameters of organic materials by testing at least one of thermal conductivity, oxygen index and calorific value. The present invention organically combines a variety of detection methods for organic materials, thereby enriching the detection content of organic materials, making the detection mechanism more reasonable, and improving the accuracy of determining the material stability evaluation index. The present invention can selectively perform heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment, thereby improving the accuracy of temperature and humidity cycle aging treatment of the material to be tested.

[0045] like Figure 2 As shown, the present invention also provides a method for testing the stability of organic material performance, which is applied to the above-mentioned device for testing the stability of organic material performance, and includes S100 to S400, and each step is specifically as follows.

[0046] S100: The pre-cycle test module tests a first performance parameter of the organic material based on the material type, where the first performance parameter includes at least one of a first thermal conductivity, a first oxygen index, and a first calorific value.

[0047] The material type of the organic material is input into the organic material performance stability testing device, and before the organic material is subjected to aging treatment, the pre-cycle testing module tests the first performance parameter according to the material type. The first performance parameter includes at least one of a first thermal conductivity, a first oxygen index, and a first calorific value. For example, the first thermal conductivity is tested according to a first thermal conductivity tester, the first oxygen index is tested according to a first oxygen index tester, and the first calorific value is tested according to a first oxygen-nitrogen calorimeter.

[0048] S200: The circulation module performs aging treatment on the organic material based on the material type, and the aging treatment includes at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment; the temperature and humidity cycle aging treatment includes at least one of heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment.

[0049] After testing the first performance parameter of the organic material, the material to be tested is subjected to aging treatment according to the material type, and the aging treatment includes at least one of temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment. For example, the temperature and humidity cycle aging treatment is performed according to the temperature and humidity cycle unit. The ultraviolet aging treatment is performed according to the ultraviolet aging unit. The ozone aging treatment is performed according to the ozone aging unit.

[0050] S300: The post-cycle test module tests a second performance parameter of the organic material based on the material type, where the second performance parameter includes at least one of a second thermal conductivity, a second oxygen index, and a second calorific value.

[0051] After the organic material is aged, a second performance parameter is tested according to the material type. The second performance parameter includes at least one of a second thermal conductivity, a second oxygen index, and a second calorific value. For example, the second thermal conductivity is tested using a second thermal conductivity tester, the second oxygen index is tested using a second oxygen index tester, and the second calorific value is tested using a second oxygen-nitrogen calorimeter.

[0052] S400: Determine a material stability evaluation index of the organic material based on the second performance parameter and the first performance parameter.

[0053] A material stability evaluation index of the organic material is calculated according to the second performance parameter and the first performance parameter.

[0054] The method for testing the performance stability of organic materials provided by the present invention combines temperature and humidity cycle aging treatment, ultraviolet aging treatment and ozone aging treatment, thereby enriching the types of aging treatment. The present invention enriches the types of testing performance parameters of organic materials by testing at least one of thermal conductivity, oxygen index and calorific value. The present invention organically combines a variety of detection methods for organic materials, thereby enriching the detection content of organic materials, making the detection mechanism more reasonable, and improving the accuracy of determining the material stability evaluation index. The present invention can selectively perform heat and rain cycle treatment, heat and cold cycle treatment and freeze-thaw cycle treatment, thereby improving the accuracy of temperature and humidity cycle aging treatment of the material to be tested.

[0055] Based on the above embodiment, the first performance parameter includes a first thermal conductivity, a first oxygen index and a first calorific value, the second performance parameter includes a second thermal conductivity, a second oxygen index and a second calorific value, and the calculation formula of the material stability evaluation index is as follows.

[0056] ; in, is the material stability evaluation index, is the second thermal conductivity, is the first thermal conductivity, is the second oxygen index, is the first oxygen index, is the second calorific value, is the first calorific value, is the change rate of thermal properties of organic materials, is the oxygen index change rate of organic materials, is the rate of change of calorific value of organic materials.

[0057] Optionally, when the first performance parameter includes a first thermal conductivity and a first oxygen index, the second performance parameter includes a second thermal conductivity and a second oxygen index, and the calculation formula of the material stability evaluation index is as follows.

[0058] ; in, is the material stability evaluation index, is the second thermal conductivity, is the first thermal conductivity, is the second oxygen index, is the first oxygen index, is the change rate of thermal properties of organic materials, is the rate of change of oxygen index of organic materials.

[0059] Optionally, when the first performance parameter includes a first thermal conductivity, the second performance parameter includes a second thermal conductivity, and the calculation formula of the material stability evaluation index is as follows.

[0060] ; in, is the material stability evaluation index, is the second thermal conductivity, is the first thermal conductivity, is the rate of change of thermal properties of organic materials.

[0061] The present invention calculates the thermal performance change rate, oxygen index change rate and calorific value change rate according to the first performance parameter and the matched second performance parameter, thereby achieving the accuracy of determining the material stability evaluation index of the organic material.

[0062] Based on the above embodiments, the hot rain cycle treatment includes 0 to 360 hot rain cycles, the hot and cold cycle treatment includes 0 to 30 hot and cold cycles, and the freeze-thaw cycle treatment includes 0 to 60 freeze-thaw cycles. After each hot rain cycle or hot and cold cycle or freeze-thaw cycle, the organic material is placed for 3 to 10 hours to perform the next hot rain cycle or hot and cold cycle or freeze-thaw cycle.

[0063] Temperature and humidity cycle aging treatment (weathering test) is to test the performance changes of organic materials under artificial simulated climatic conditions (light, rain and temperature).

[0064] According to the material type and specific performance of the organic material, select different types of cycles (including heat-rain cycle, heat-cold cycle and freeze-thaw cycle) and the number of cycles (including the number of heat-rain cycle, heat-cold cycle and freeze-thaw cycle). For example, first perform 30 heat-rain cycles, then 10 heat-cold cycles, and finally 5 freeze-thaw cycles. After each heat-rain cycle, heat-cold cycle or freeze-thaw cycle, place the organic material for 3 to 10 hours before the next heat-rain cycle, heat-cold cycle or freeze-thaw cycle.

[0065] The present invention is conducive to realizing accurate aging test on organic materials by setting different types of cycles and cycle times, enriching the types of aging treatment and improving the accuracy of aging treatment.

[0066] Based on the above embodiment, the duration of the ultraviolet aging treatment includes 0 to 1500 hours, and the duration of the ozone aging treatment includes 0 to 300 hours.

[0067] The UV aging unit is turned on to artificially simulate the UV irradiation environment, and the organic material is placed in the artificially simulated UV irradiation environment, and the UV irradiation is maintained for 0 to 1500 hours to perform UV aging treatment on the test material.

[0068] The ozone aging unit is turned on to artificially simulate the ozone environment, and the organic material is placed in the artificially simulated ozone environment for 0 to 300 hours to perform ozone aging treatment on the material to be tested. For example, ozonated air is collected near the organic material in the ozone aging unit to determine the ozone concentration of the ozone aging unit. The specific method for determining the ozone concentration is carried out in accordance with the provisions of ISO1431-3.

[0069] The present invention realizes accurate simulation of the ultraviolet aging environment and the ozone aging environment by setting the duration of the ultraviolet aging treatment and the duration of the ozone aging treatment.

[0070] Based on the above embodiment, each heat rain cycle includes: first heating the organic material for 0.5 to 3 hours so that the temperature of the organic material rises to 65°C to 90°C within 0 to 1 hour, and maintaining the temperature of the organic material at (65°C to 90°C) ±5°C during the heating process, then using water with a temperature of 10°C to 30°C to water the organic material for 0.5 to 3 hours, and finally leaving the organic material to stand for 1 to 5 hours.

[0071] The present invention finely sets the duration and temperature of the heating process and the shower process of the hot rain cycle, thereby improving the accuracy of each hot rain cycle.

[0072] Based on the above embodiment, each heat-cooling cycle includes: first heating the organic material for 5 to 16 hours so that the temperature of the organic material rises to 40°C to 55°C within 0 to 3 hours, and the temperature of the organic material is maintained at (40°C to 55°C) ±5°C during the heating process, and then cooling the organic material for 10 to 42 hours so that the temperature of the organic material drops to -25°C to -10°C within 0 to 3 hours, and the temperature of the organic material is maintained at (-25°C to -10°C) ±5°C during the cooling process.

[0073] The present invention finely sets the duration and temperature of the heating process and the cooling process of the heat-rain cycle, thereby improving the accuracy of each heat-cold cycle.

[0074] Based on the above embodiment, each freeze-thaw cycle includes: first, water at a temperature of 10°C to 30°C is used to spray the organic material for 0.5 to 16 hours, then the temperature of the organic material is reduced to -25°C to -10°C within 0 to 3 hours, and the temperature of the organic material is maintained at (-25°C to -10°C) ±5°C for 4 to 24 hours.

[0075] The present invention finely sets the duration and temperature of the watering process and the cooling process of the freeze-thaw cycle, thereby improving the accuracy of each freeze-thaw cycle.

[0076] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0077] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An organic material performance stability testing device, characterized in that: include: a pre-cycle test module, a cycle module, and a post-cycle test module; The circulation module is used to perform an aging treatment on the organic material based on the material type of the organic material, and the aging treatment includes at least one of a temperature and humidity cycle aging treatment, an ultraviolet aging treatment, and an ozone aging treatment; The pre-cycle test module is used to test a first performance parameter of the organic material based on the material type before the aging process, wherein the first performance parameter includes at least one of a first thermal conductivity, a first oxygen index and a first calorific value; The post-cycle test module is used to test a second performance parameter of the organic material based on the material type after the aging treatment, wherein the second performance parameter includes at least one of a second thermal conductivity, a second oxygen index, and a second calorific value; The temperature and humidity cycle aging treatment includes at least one of heat-rain cycle treatment, heat-cold cycle treatment and freeze-thaw cycle treatment; The second performance parameter and the first performance parameter are used to determine a material stability evaluation index of the organic material.

2. The organic material performance stability testing device according to claim 1, characterized in that: The pre-cycle test module includes a first thermal conductivity tester, a first oxygen index tester and a first oxygen-nitrogen calorimeter, the cycle module includes a temperature and humidity cycle unit, an ultraviolet aging unit and an ozone aging unit, and the post-cycle test module includes a second thermal conductivity tester, a second oxygen index tester and a second oxygen-nitrogen calorimeter.

3. The device for testing the stability of organic material performance according to claim 1, characterized in that: The ultraviolet aging unit includes at least one of a UVA-340 fluorescent ultraviolet lamp, a UVA-351 fluorescent ultraviolet lamp, a UVB-313 fluorescent lamp and a FS40 fluorescent lamp.

4. A method for testing the performance stability of organic materials, characterized in that: The device for testing the stability of organic material performance as claimed in any one of claims 1 to 3 comprises: The pre-cycle test module tests the first performance parameter of the organic material based on the material type, the first performance parameter comprising at least one of the first thermal conductivity, the first oxygen index, and the first calorific value; The circulation module performs an aging treatment on the organic material based on the material type, the aging treatment comprising at least one of the temperature and humidity cycle aging treatment, the ultraviolet aging treatment and the ozone aging treatment; the temperature and humidity cycle aging treatment comprises at least one of the heat and rain cycle treatment, the heat and cold cycle treatment and the freeze-thaw cycle treatment; The post-cycle test module tests the second performance parameter of the organic material based on the material type, the second performance parameter comprising at least one of the second thermal conductivity, the second oxygen index, and the second heating value; The material stability evaluation index of the organic material is determined based on the second performance parameter and the first performance parameter.

5. The method for testing the performance stability of organic materials according to claim 4, characterized in that: The first performance parameter includes a first thermal conductivity, a first oxygen index and a first calorific value, the second performance parameter includes a second thermal conductivity, a second oxygen index and a second calorific value, and the calculation formula of the material stability evaluation index is: ； in, is the material stability evaluation index, is the second thermal conductivity, is the first thermal conductivity, is the second oxygen index, is the first oxygen index, is the second calorific value, is the first calorific value, is the change rate of thermal properties of organic materials, is the oxygen index change rate of organic materials, is the rate of change of calorific value of organic materials.

6. The method for testing the stability of organic material performance according to claim 4, characterized in that: The heat-rain cycle treatment includes 0 to 360 heat-rain cycles, the heat-cold cycle treatment includes 0 to 30 heat-cold cycles, and the freeze-thaw cycle treatment includes 0 to 60 freeze-thaw cycles. After each heat-rain cycle or heat-cold cycle or freeze-thaw cycle, the organic material is placed for 3 to 10 hours to perform the next heat-rain cycle or heat-cold cycle or freeze-thaw cycle.

7. The method for testing the performance stability of organic materials according to claim 4, characterized in that: The duration of the ultraviolet aging treatment includes 0 to 1500 hours, and the duration of the ozone aging treatment includes 0 to 300 hours.

8. The method for testing the performance stability of organic materials according to claim 6, characterized in that: Each heat rain cycle includes: First, the organic material is heated for 0.5 to 3 hours so that the temperature of the organic material rises to 65°C to 90°C within 0 to 1 hour, and the temperature of the organic material is maintained at (65°C to 90°C) ±5°C during the heating process. Then, water at a temperature of 10°C to 30°C is used to spray the organic material for 0.5 to 3 hours. Finally, the organic material is allowed to stand for 1 to 5 hours.

9. The method for testing the performance stability of organic materials according to claim 6, characterized in that: Each of the heating and cooling cycles includes: First, the organic material is heated for 5 to 16 hours so that the temperature of the organic material rises to 40°C to 55°C within 0 to 3 hours, and the temperature of the organic material is maintained at (40°C to 55°C) ±5°C during the heating process. Then, the organic material is cooled for 10 to 42 hours so that the temperature of the organic material drops to -25°C to -10°C within 0 to 3 hours, and the temperature of the organic material is maintained at (-25°C to -10°C) ±5°C during the cooling process.

10. The method for testing the performance stability of organic materials according to claim 6, characterized in that: Each freeze-thaw cycle includes: First, the organic material is sprinkled with water at a temperature of 10°C to 30°C for 0.5 to 16 hours, and then the temperature of the organic material is lowered to -25°C to -10°C within 0 to 3 hours, and the temperature of the organic material is maintained at (-25°C to -10°C) ±5°C for 4 to 24 hours.

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