Polyimide-containing electrochromic material and preparation method of device

Abstract

The invention relates to the technical field of energy-saving material manufacturing, in particular to a polyimide-containing electrochromic material. The color-changing material is prepared from the following materials in parts: 100 to 300 parts of polyimide resin, 80 to 200 parts of a methyl pyrrolidone solvent, 20 to 50 parts of phenol, 30 to 60 parts of benzenediol, 40 to 80 parts of organic dye, 20 to 40 parts of a light stabilizer, 30 to 80 parts of an antistatic agent, 80 to 150 parts of an organic dispersant and 50 to 100 parts of a UI polymer blend. According to the invention, by reasonably adding polyimide, the stability of the material is stronger, the polyimide can maintain the structural integrity and mechanical properties at a relatively high temperature, and the polyimide is excellent in performance under the erosion of chemicals, has good corrosion resistance to many solvents and chemical substances, and can be applied to the field of chemical engineering. Therefore, the material is commonly used in occasions requiring chemical corrosion resistance, so that the service life of the material is longer, better use prospects and commercial value are brought to the material, the preparation steps of the material are simple, and the material is more convenient to prepare.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy-saving material manufacturing, and specifically relates to a preparation method of a polyimide-containing electrochromic material and device. Background Art

[0002] The tightening of non-renewable energy and the increasingly serious environmental pollution have made us realize the necessity of developing new energy. In addition to developing solar energy, wind energy and geothermal energy as the main development direction, we must also develop new energy-saving and environmentally friendly materials. As a new energy material, electrochromic can save a lot of energy in adjusting light, temperature, and power storage. It is mainly used in color-changing windows, smart color-changing textiles, stealth, display screens, sunglasses, rear-view mirrors, supercapacitor clothing, electronic tags, etc. This type of material has low pollution and flexible display advantages, which makes it have great potential in future development.

[0003] Existing color-changing materials are not very stable during use, and are prone to oxidation and color change over time. They have a short service life and are relatively complicated to prepare. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method for preparing a polyimide-containing electrochromic material and device, which has the advantages of strong material stability, long service life and simple preparation method.

[0005] To achieve the above object, the present invention provides the following technical solution: a polyimide-containing electrochromic material, characterized in that the color-changing material is prepared from the following materials in parts: 100-300 parts of polyimide resin, 80-200 parts of methyl pyrrolidone solvent, 20-50 parts of phenol, 30-60 parts of hydroquinone, 40-80 parts of organic dye, 20-40 parts of light stabilizer, 30-80 parts of antistatic agent, 80-150 parts of organic dispersant, and 50-100 parts of polymer blend.

[0006] Preferably, the color-changing material is prepared from the following materials: 150 parts of polyimide resin, 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend.

[0007] Preferably, the organic dye is one of azo dye, phthalocyanine dye, ketone dye and epoxy dye, the ratio of organic dye to light stabilizer is 2:1, the antistatic agent is one of sodium dodecyl sulfate, polyethylene glycol and carbon black, and the ratio of antistatic agent to light stabilizer is 5:3.

[0008] Preferably, the preparation steps of the polyimide resin are: preparing various monomers and intermediates required for the polymerization reaction, synthesizing the polyimide resin through a polymerization reaction of the pre-prepared monomers, combining the monomers through amide bonds to form a polymer chain, using an organic solvent as a reaction medium, and after the synthesis is completed, removing the solvent from the resin. After the polymerization reaction is completed, further refining and processing steps are performed, and the processed polyimide resin is molded by extrusion, calendering, and injection molding processes.

[0009] Preferably, the preparation steps of the organic dye are: preparing starting materials and intermediates, reacting a diamine compound with a coupling agent to form a conjugate, reacting the conjugate with a diarylamine to generate an azo dye, synthesizing it with other dyes through esterification and condensation, separating and purifying it through crystallization, and testing the physical properties of the synthesized dye, including melting point, solubility and color stability.

[0010] Preferably, a method for preparing a device containing a polyimide electrochromic material is characterized in that the preparation method process is:

[0011] S1: prepare materials and dissolve the synthesized polyimide in an organic solvent;

[0012] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0013] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0014] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0015] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0016] S6: After completing the electrode processing, the device is packaged in a protective environment and then the performance of the device is tested.

[0017] Preferably, the step of S1 is:

[0018] Prepare the following materials:

[0019] 150 parts of polyimide resin, 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend;

[0020] Select diamine and dianhydride to generate polymer, and carry out polymerization reaction of the selected diamine and dianhydride in a suitable solvent, typical solvents include N, N-dimethylacetamide (DMAc), N-methylpyrrolidone (NMP), etc., the polymerization reaction temperature is 150°C-250°C, and the time is 5h-24h;

[0021] dissolving the obtained polyimide polymer in an organic solvent, and filtering to remove residual solid particles and impurities;

[0022] Controlling the concentration of the polyimide solution by diluting the solution to adjust the concentration;

[0023] The obtained polyimide solution was stored and subjected to a stability test in a dry, light-proof and low-temperature environment.

[0024] Preferably, the step of S2 is:

[0025] Deionized water rinsing and ultrasonic cleaning methods are used to remove dust, grease and other contaminants on the surface of the substrate. The surface is wiped with an organic solvent to remove residual organic contaminants. After the substrate is dried, plasma cleaning is performed. A plasma cleaning system is used to clean the substrate surface with high-energy plasma to remove organic contaminants and particles on the surface, while improving the activity of the surface, which is helpful for the adhesion of the polyimide film. The surface is treated with UV light and ozone gas to effectively remove organic contaminants and produce active surface functional groups such as hydroxyl groups to improve the adhesion of the material. Silane coupling agents are used to dissolve them in appropriate solvents and the substrate surface is treated by dip-spraying to form a surface with good adhesion. After the surface is treated, drying is performed to remove residual solvents or treatment agents and ensure that the substrate surface is clean. The treated substrate can be stored in a dry, dust-free environment to prevent re-contamination.

[0026] Preferably, the step of S5 is:

[0027] The metal to be deposited is placed in the crucible, and vacuum pumping is started to reach a high vacuum of 10^-6Torr-10^-7Torr for evaporation deposition;

[0028] A pretreatment step is performed to preheat the metal using an electron beam to heat the crucible so that it evaporates evenly;

[0029] The metal is heated by heating the crucible until it evaporates into steam, and the steam is deposited on the surface of the cured polyimide film to form a metal electrode;

[0030] After metal deposition is completed, metal evaporation is stopped and the system is allowed to cool to room temperature;

[0031] Gradually restore atmospheric pressure, open the vacuum system and take out the processed substrate;

[0032] Prepare the vacuum chamber and load the desired metal into the crucible;

[0033] Start vacuuming, and heat the crucible to heat the metal to its evaporation temperature to make it evaporate;

[0034] The vapor is deposited on the polyimide film surface in a vacuum chamber, and the heating and evaporation process is controlled to ensure uniform metal deposition;

[0035] After the metal evaporation is completed, the heating and metal evaporation process is stopped, the atmospheric pressure is gradually restored, the vacuum system is opened and the processed substrate is taken out;

[0036] A solution or suspension containing metal particles or metal crystals is prepared. The metal particles may be dispersed therein using a suitable solvent or dispersant.

[0037] The metal solution is evenly sprayed on the surface of the cured polyimide film. After spraying, the substrate is placed at an appropriate temperature to dry and solidify it, and further heat treatment or chemical treatment is performed to enhance the bonding strength and stability between the metal electrode and the polyimide film.

[0038] Preferably, the step of S6 is:

[0039] Select organic polymer packaging materials, prepare vacuum packaging machines, place processed electrodes and other device components on the packaging mold, use packaging materials to completely encapsulate the device, ensure that the exposed surface of the device is completely wrapped, and the packaging material is in full contact with the substrate surface. According to the requirements of the packaging material, heat or pressure control is performed to ensure that the packaging material is fully cured or hardened to form a stable packaging structure. After the packaging is completed, any possible overflow or residue of packaging materials is handled to ensure the appearance and structural integrity of the package;

[0040] Place the packaged device on the performance test bench or test equipment, connect the power supply and test equipment, measure the resistance and current-voltage characteristics of the electrode, and measure the optical parameters of light intensity and wavelength;

[0041] Test the performance changes of the device under specific temperature, humidity or vacuum conditions, and record the data of all performance tests, including test conditions, results and any observed abnormalities;

[0042] Evaluate the performance and reliability of the device based on the performance test results, and produce a performance test report including device specifications, packaging information, test methods and results, and recommendations.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] This application is approved by BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a preparation flow chart of the present invention. DETAILED DESCRIPTION

[0046] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0048] Example 1

[0049] A method for preparing a device containing a polyimide electrochromic material, the preparation steps comprising:

[0050] S1: prepare 150 parts of polyimide resin, 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend, and dissolve the synthesized polyimide in the organic solvent;

[0051] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0052] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0053] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0054] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0055] S6: After completing the electrode processing, the device is packaged in a protective environment and then the performance of the device is tested.

[0056] Example 2

[0057] A method for preparing a device containing a polyimide electrochromic material, the preparation steps comprising:

[0058] S1: prepare 50 parts of polyimide resin, 60 parts of methyl pyrrolidone solvent, 15 parts of phenol, 25 parts of hydroquinone, 30 parts of organic dye, 15 parts of light stabilizer, 25 parts of antistatic agent, 50 parts of organic dispersant, and 35 parts of polymer blend, and dissolve the synthesized polyimide in the organic solvent;

[0059] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0060] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0061] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0062] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0063] S6: After completing the electrode processing, the device is packaged in a protective environment and then the performance of the device is tested.

[0064] Example 3

[0065] A method for preparing a device containing a polyimide electrochromic material, the preparation steps comprising:

[0066] S1: prepare 200 parts of polyimide resin, 100 parts of methyl pyrrolidone solvent, 60 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 200 parts of organic dispersant, and 45 parts of polymer blend, and dissolve the synthesized polyimide in the organic solvent;

[0067] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0068] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0069] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0070] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0071] S6: After the electrode processing is completed, the device is packaged in a protective environment and then the performance test of the device is carried out

[0072] Example 4

[0073] A method for preparing a device containing a polyimide electrochromic material, the preparation steps comprising: S1: preparing 90 parts of a polyimide resin, 80 parts of a methyl pyrrolidone solvent, 50 parts of phenol, 30 parts of hydroquinone, 50 parts of an organic dye, 50 parts of a light stabilizer, 60 parts of an antistatic agent, 20 parts of an organic dispersant, and 70 parts of a polymer blend, and dissolving the synthesized polyimide in the organic solvent;

[0074] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0075] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0076] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0077] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0078] S6: After the electrode processing is completed, the device is packaged in a protective environment and then the performance test of the device is carried out

[0079] Example 5

[0080] A method for preparing a device containing a polyimide electrochromic material, the preparation steps comprising:

[0081] S1: prepare 160 parts of polyimide resin, 130 parts of methyl pyrrolidone solvent, 50 parts of phenol, 80 parts of hydroquinone, 80 parts of organic dye, 20 parts of light stabilizer, 80 parts of antistatic agent, 120 parts of organic dispersant, and 90 parts of polymer blend, and dissolve the synthesized polyimide in the organic solvent;

[0082] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0083] S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution;

[0084] S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing;

[0085] S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying;

[0086] S6: After the electrode processing is completed, the device is packaged in a protective environment and then the performance test of the device is carried out

[0087] Comparative Example 1

[0088] S1: prepare 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend, and dissolve the synthesized polyimide in the organic solvent;

[0089] S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate;

[0090] S3: coating the material on the prepared substrate surface by spin spraying, controlling the concentration, coating speed and temperature of the solution;

[0091] S4: placing the material film coated on the substrate in an oven for drying and curing;

[0092] S5: Processing metal electrodes on the solidified material film by physical evaporation deposition, thermal evaporation, and spraying;

[0093] S6: After completing the electrode processing, the device is packaged in a protective environment and then the performance of the device is tested.

[0094] The following table shows the properties of polyimide electrochromic materials prepared in different embodiments.

[0095]

[0096]

[0097] The embodiment 1 described above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Various changes can be made to the above embodiments of the present invention, that is, all simple, equivalent changes and modifications made according to the claims and the contents of the specification of the present invention application shall fall within the scope of protection of the claims of the patent of the present invention. The conventional technical contents are not described in detail in the present invention.

[0098] Stability testing

[0099] Thermal stability test: Conduct thermal cycle tests to simulate the temperature changes that the material may experience during use and evaluate its stability and performance changes;

[0100] Photostability test: Use UV-visible spectroscopy to measure changes in the absorption characteristics of materials under UV light and evaluate their photodegradation and stability;

[0101] Electrochemical stability test: Cyclic voltammetry test is performed to measure the electrochemical response of the material under the action of the electric field, and its stability and response speed are evaluated when the electric field changes. Electrochemical impedance spectroscopy is used to evaluate the electrical properties and electrochemical stability of the material at different frequencies.

[0102] Mechanical stability testing: Impact testing is performed to evaluate the stability and structural integrity of materials when subjected to shock or vibration;

[0103] Chemical stability test: measuring the stability and corrosion resistance of materials in different chemical environments;

[0104] Long-term stability test: Accelerated aging test using high temperature, high humidity, ultraviolet radiation and other conditions.

[0105] Service life detection

[0106] Accelerated aging test: Use high temperature and high humidity to perform accelerated aging tests, and design appropriate aging cycles and durations;

[0107] Periodic testing: Design a periodic testing plan to simulate the repeated operation and periodic load of the device in actual use, and test the performance changes of the device after these repeated operations, including whether the electrochromic performance is still stable and the change of response time.

[0108] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0109] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyimide-containing electrochromic material, characterized in that: The color-changing material is prepared from the following materials: 100-300 parts of polyimide resin, 80-200 parts of methyl pyrrolidone solvent, 20-50 parts of phenol, 30-60 parts of hydroquinone, 40-80 parts of organic dye, 20-40 parts of light stabilizer, 30-80 parts of antistatic agent, 80-150 parts of organic dispersant and 50-100 parts of polymer blend.

2. The polyimide-containing electrochromic material according to claim 1, characterized in that: The color-changing material is specifically prepared from the following materials: 150 parts of polyimide resin, 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend.

3. The method for preparing the polyimide-containing electrochromic material and device according to claim 1, characterized in that: The organic dye is one of azo dye, phthalocyanine dye, ketone dye and epoxy dye, the ratio of organic dye to light stabilizer is 2:1, the antistatic agent is one of sodium dodecyl sulfate, polyethylene glycol and carbon black, and the ratio of antistatic agent to light stabilizer is 5:

3.

4. The method for preparing the polyimide-containing electrochromic material and device according to claim 1, characterized in that: The preparation steps of polyimide resin are as follows: prepare various monomers and intermediates required for polymerization reaction, synthesize polyimide resin through polymerization reaction of pre-prepared monomers, combine monomers through amide bonds to form polymer chains, use organic solvent as reaction medium, remove solvent from resin after synthesis, and carry out further refining and processing steps after polymerization reaction is completed. The processed polyimide resin is formed by extrusion, calendering and injection molding.

5. The method for preparing a polyimide-containing electrochromic material and device according to claim 1, characterized in that: The preparation steps of organic dyes are as follows: prepare starting materials and intermediates, react diamine compounds with coupling agents to form conjugates, react the conjugates with diarylamines to generate azo dyes, synthesize them with other dyes through esterification and condensation, separate and purify them through crystallization, and test the physical properties of the synthesized dyes, including melting point, solubility and color stability.

6. A method for preparing a device containing a polyimide electrochromic material, characterized in that: The preparation method process is: S1: prepare materials and dissolve the synthesized polyimide in an organic solvent; S2: preparing a translucent substrate used as a base and performing surface treatment on the substrate; S3: coating the polyimide resin solution on the prepared substrate surface by spin coating and spray coating, and controlling the concentration, coating speed and temperature of the solution; S4: placing the polyimide resin film coated on the substrate in an oven for drying and curing; S5: Processing metal electrodes on the cured polyimide film by physical vapor deposition, thermal evaporation, and spraying; S6: After completing the electrode processing, the device is packaged in a protective environment and then the performance of the device is tested.

7. The method for preparing a device containing a polyimide electrochromic material according to claim 6, characterized in that: The steps of S1 are: Prepare the following materials: 150 parts of polyimide resin, 120 parts of methyl pyrrolidone solvent, 30 parts of phenol, 50 parts of hydroquinone, 60 parts of organic dye, 30 parts of light stabilizer, 50 parts of antistatic agent, 100 parts of organic dispersant, and 70 parts of polymer blend; Selecting diamine and dianhydride to generate polymer, polymerizing the selected diamine and dianhydride in a suitable solvent, the solvent includes N,N-dimethylacetamide (DMAc) and N-methylpyrrolidone (NMP), the polymerization temperature is 150° C.-250° C., and the time is 5 h-24 h; dissolving the obtained polyimide polymer in an organic solvent, and filtering to remove residual solid particles and impurities; Controlling the concentration of the polyimide solution by diluting the solution to adjust the concentration; The obtained polyimide solution was stored and subjected to a stability test.

8. The method for preparing a device containing a polyimide electrochromic material according to claim 6, characterized in that: The steps of S2 are: The dust and grease on the surface of the substrate are removed by deionized water rinsing and ultrasonic cleaning. The surface is wiped with an organic solvent to remove residual organic pollutants. After the substrate is dried, plasma cleaning is performed. A plasma cleaning system is used to clean the substrate surface with high-energy plasma to improve the surface activity. The surface is treated with UV light and ozone gas to remove organic pollutants and generate hydroxyl-active surface functional groups. A silane coupling agent is used to dissolve it in a solvent. The substrate surface is treated by dip-spraying. After the surface is treated, it is dried.

9. The method for preparing a device containing a polyimide electrochromic material according to claim 6, characterized in that: The steps of S5 are: The metal to be deposited is placed in the crucible, and vacuum pumping is started to reach a high vacuum of 10^-6Torr-10^-7Torr for evaporation deposition; A pretreatment step is performed to preheat the metal using an electron beam to heat the crucible so that it evaporates evenly; The metal is heated by heating the crucible until it evaporates into steam, and the steam is deposited on the surface of the cured polyimide film to form a metal electrode; After metal deposition is completed, metal evaporation is stopped and the system is allowed to cool to room temperature; Gradually restore atmospheric pressure, open the vacuum system and take out the processed substrate; Prepare the vacuum chamber and load the desired metal into the crucible; Start vacuuming, and heat the crucible to heat the metal to its evaporation temperature to make it evaporate; The vapor is deposited on the polyimide film surface in a vacuum chamber, and the heating and evaporation process is controlled to ensure uniform metal deposition; After the metal evaporation is completed, the heating and metal evaporation process is stopped, the atmospheric pressure is gradually restored, the vacuum system is opened and the processed substrate is taken out; A suspension containing metal particles is prepared, and the metal solution is sprayed on the surface of the solidified polyimide film. After spraying, the substrate is dried and solidified, and heat-treated.

10. The method for preparing a device containing a polyimide electrochromic material according to claim 6, characterized in that: The steps of S6 are: Select organic polymer packaging materials, prepare vacuum packaging machines, place processed electrodes and other device components on the packaging mold, use packaging materials to package the devices, and perform heating and pressure control according to the requirements of the packaging materials; Place the packaged device on the performance test bench, connect the power supply and test equipment, measure the resistance and current-voltage characteristics of the electrode, and perform optical parameter measurements of light intensity and wavelength; Record the performance changes of the tested devices under constant temperature, humidity and vacuum conditions, and record the data of all performance tests, including test conditions, results and anomalies; Evaluate the performance and reliability of the device based on the performance test results, and produce a performance test report including device specifications, packaging information, test methods and results, and recommendations.

Images