Technical article on high temperature resistance testing of aluminum coated PI film

In modern technology and industrial applications, high-performance materials such as aluminum coated PI films have attracted much attention due to their unique high temperature resistance, chemical corrosion resistance, and excellent electrical performance. In order to evaluate the high temperature resistance of aluminum coated PI film in practical applications, a series of precise tests are required. This article will provide a detailed introduction to the high-temperature resistance testing method of aluminum coated PI film, and will be tested by Advanced Institute (Shenzhen) Technology Co., LtdAdvanced Institute Technology PI Aluminum CoatingCompare and analyze the actual test data.

1、 Introduction to Aluminum Plated PI Film

Aluminum coated PI filmIt is a composite material in which a high-purity aluminum layer is uniformly deposited on the surface of a high-performance polyimide (PI) film through vacuum evaporation technology. This material combines the excellent properties of PI film, such as high temperature resistance, chemical corrosion resistance, excellent mechanical strength and electrical insulation, as well as the good conductivity, reflectivity and barrier properties of aluminum coating, providing high-performance solutions for multiple industries.

2、 Test method for high temperature resistance performance

1. Testing standards and instruments

   High temperature resistance testing usually follows certain standards, such as ASTM, ISO, or national standards (GB/T). In this test, we used a high-temperature tensile testing machine to evaluate the mechanical properties and adhesion strength of aluminum coated PI film at high temperatures.

2. sample preparation

   supportAluminum coated PI filmCut according to the standard dimensions and ensure that the sample surface is smooth and free of impurities. In order to test the adhesion strength between the aluminum plating layer and the PI substrate, a certain pre-treatment needs to be applied to the sample, such as using a roller to tightly adhere the sample to the test substrate and allowing it to stand for a period of time to ensure sufficient adhesion.

3. Test conditions

   The testing temperature is usually set to a high temperature environment, such as 200 ℃, 300 ℃ or even higher, to simulate extreme temperature conditions in practical applications. The testing speed is generally controlled at a constant rate, such as 10mm/min, to ensure the accuracy and repeatability of the data.

4. testing procedure

   • Start the high-temperature tensile testing machine and preheat it to the set temperature.
   • Fix the bonded sample (aluminum coated PI film and test substrate) onto the stretching fixture, ensuring that the sample is centered and firmly fixed in the fixture.
   • Set the test speed and confirm that the test temperature has reached the set value on the control panel of the high-temperature tensile testing machine.
   • Start the testing machine and begin the peeling test. The equipment will apply tension at the set speed to peel off the aluminum coated PI film sample.
   • During the peeling process, record the force required for peeling the aluminum coated PI film and the relevant data during the peeling process.

5. Data recording and analysis

   After the test is completed, turn off the high-temperature tensile testing machine, remove the sample, and record and analyze the test data. The recorded data includes peel force, peel speed, test temperature, and any possible abnormal conditions. By comparing data under different testing conditions, it is possible to evaluateAluminum coated PI filmHigh temperature resistance performance.

3、 Comparison of High Temperature Resistance Test Data for Advanced Institute Technology PI Aluminum Coating

To verify the high temperature resistance of aluminum coated PI film,Advanced Institute (Shenzhen) Technology Co., LtdA series of tests were conducted on the advanced institute technology PI aluminum plated film. The following is a comparison and analysis of some test data:

• Testing conditions: The testing temperature is 350 ℃ and the testing speed is 10mm/min.
• Samples: Advanced Institute Technology PI Aluminum Coating Film (Sample A) and a certain brand of PI Aluminum Coating Film available on the market (Sample B).

Data analysis:

• Peel force: The peel force of sample A is higher than that of sample B, indicating that the adhesion strength between the advanced institute technology PI aluminum plated film and the PI substrate is higher, and it can better maintain the integrity of the structure in high temperature environments.
• Aluminum layer integrity: After the peel test, the aluminum layer of sample A remained intact without detachment, while the aluminum layer of sample B showed partial detachment. This further proves the excellent adhesion performance of advanced institute technology PI aluminum plated film at high temperatures.
• PI substrate morphology: The PI substrate of sample A showed no significant changes after peel testing, while the PI substrate of sample B exhibited slight deformation. This indicates that the advanced institute technology PI aluminum coating has a stronger protective effect on the PI substrate at high temperatures.
• Changes in conductivity: Under high temperature conditions, the conductivity of sample A remains stable and unchanged, while the conductivity of sample B slightly decreases. This further confirmsAdvanced Institute Technology PI Aluminum CoatingExcellent electrical performance at high temperatures.

4、 Conclusion

Through testing with a high-temperature tensile testing machine, the Advanced Institute Technology PI aluminum plated film from Advanced Institute (Shenzhen) Technology Co., Ltd. has shown excellent performance in high temperature resistance. Compared with a certain brand of PI aluminum plated film on the market, Advanced Institute Technology's PI aluminum plated film has higher adhesion strength, more complete aluminum layer, more stable PI substrate morphology, and superior conductivity. These excellent properties make the application of advanced institute technology PI aluminum plated film more reliable and stable in high-temperature environments, providing high-performance solutions for fields such as electronics, aerospace, and medical equipment.

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