Long term stability testing method and evaluation criteria for PI silver plated film

Brief introduction

PI (polyimide) silver plated filmAs a high-performance functional thin film material, it has been widely used in various fields such as electronic products, aerospace, medical equipment, etc. due to its excellent high temperature resistance, insulation, mechanical strength, conductivity, and electromagnetic shielding performance. However, in order to ensure the reliability and durability of PI silver plated film in practical applications, it is particularly important to test and evaluate its long-term stability. This article will provide a detailed introduction to the long-term stability testing method and evaluation criteria for PI silver plated film, and mention the research progress of Advanced Institute (Shenzhen) Technology Co., Ltd. in this field.

2、 Long term stability testing method

1. High and low temperature resistance test
   PI film itself has excellent resistance to high and low temperatures, and can be stably used in the temperature range of -200 ℃ to 300 ℃, and even up to 400 ℃ in some cases. By simulating extreme temperature environments, observe the performance changes of PI silver plated film under these conditions, such as conductivity, mechanical strength, etc.

2. Corrosion resistance test
   Using salt spray test and chemical reagent immersion test, simulatePI silver plated filmPerformance in corrosive environments. Evaluate the corrosion resistance of the coating by observing its corrosion condition.

3. Coating Adhesion Test
   Use various methods such as grid cutting, tensile testing, and bending to test the adhesion between the silver plating layer and the PI substrate. Ensure that the coating is not easily peeled off during long-term use, and guarantee the overall performance of the product.

4. Electrical performance testing
   Regularly inspect the electrical insulation and conductivity of PI silver plated film to ensure its electrical safety in various application scenarios.

5. mechanical testing
   Evaluate the mechanical strength and wear resistance of PI silver plated film through mechanical performance tests such as stretching and bending. Ensure that it is not easily broken when subjected to high mechanical stress.

6. Electromagnetic shielding performance test
   Test the electromagnetic shielding performance of PI silver plated film in high-frequency electromagnetic fields to ensure that it can effectively prevent the propagation of interference signals and external electromagnetic radiation interference.

3、 Evaluation criteria

1. Appearance evaluation
   The PI silver plated film should be flat, fine, and have good luster, without defects such as pinholes, pockmarks, peeling, blistering, and peeling.

2. Performance parameter evaluation
   According to the test results, the high and low temperature resistance, corrosion resistance, adhesion, electrical performance, mechanical performance, andElectromagnetic shielding performanceEvaluate key performance parameters. Ensure that all performance indicators meet the design requirements and application needs.

3. Long term stability assessment
   Evaluate the long-term stability of PI silver plated film based on test results and actual application environment. Predict the performance change trend during long-term use, providing reliable basis for product design and application.

4、 Research Progress of Advanced Institute (Shenzhen) Technology Co., Ltd

Advanced Institute (Shenzhen) Technology Co., Ltd. has conducted in-depth research in the field of PI silver plating film, and further improved the performance of PI silver plating film by improving the coating process, optimizing the material formula, and other means. For example, using magnetron sputtering technology can achieve more uniform depositionSilver nanoparticlesThereby improving the conductivity and stability of the film. In addition, the company is committed to developing new coating technologies and multifunctional composite materials to meet the demand for PI silver plated films in different fields.

5、 Conclusion

PI silver plated filmThe long-term stability testing method and evaluation criteria are of great significance for ensuring its reliability and durability in practical applications. Through scientific testing methods and strict evaluation criteria, the performance of PI silver plated film can be accurately evaluated, providing reliable basis for product design and application. Meanwhile, with the continuous advancement and innovation of technology, the performance and application scope of PI silver plated film will be further expanded, providing strong support for the development of various industries.

The above data is for reference only, and specific performance may vary due to production processes and product specifications.