Does PI silver plated film require post-treatment after silver plating to enhance the stability and performance of the coating?

With the rapid development of the electronics industry,Polyimide (PI) silver plated filmDue to its excellent electrical performance, heat resistance, and mechanical strength, it plays an important role in high-end applications such as flexible circuit boards (FPCs). However, whether the silver plated PI film needs further post-treatment to enhance the stability and performance of the coating has always been a focus of attention in the industry. This article will explore the impact of post-treatment on the quality of PI silver plated film coating and introduceAdvanced Institute (Shenzhen) Technology Co., LtdRelated research results.

PI silver plated film has a wide range of applications in the electronic manufacturing industry, especially in situations that require high performance and reliability. However, the silver plating process itself may lead to some defects in the coating, such as poor adhesion and insufficient wear resistance. Therefore, the post-processing process has become a key step in improving the stability and performance of the coating.

The necessity of post-processing

1. Improve adhesion

The adhesion between the silver plating layer and the PI film substrate directly affects the service life of the product. Untreated silver plating can easily detach from the substrate in some cases, leading to electrical connection failure. Experimental data shows that chemical or physical treatment (such as plasma treatment) can significantly enhance the adhesion between the coating and the substrate.

2. Enhance wear resistance

In actual usage environments,PI silver plated filmMay need to withstand stress such as friction and bending. Untreated silver plating has poor wear resistance and is prone to wear during use, thereby affecting its conductivity. Research has shown that coating a protective film on the surface of silver plating or conducting heat treatment can effectively improve its wear resistance.

3. Improve antioxidant activity

Silver, as a reactive metal, is prone to oxidation and blackening in humid air, which affects its appearance and performance. By post-treatment, such as using antioxidants or forming an oxide protective layer, the antioxidant capacity of the silver plating layer can be significantly improved.

Research achievements of Advanced Institute (Shenzhen) Technology Co., Ltd

Advanced Institute (Shenzhen) Technology Co., Ltd. has conducted extensive research on the post-treatment technology of PI silver plated film and has achieved a series of results:

• Chemical treatment: A specialized chemical treatment agent has been developed to significantly improve the adhesion between the silver plating layer and the PI film through a simple soaking step. The experimental results showed that the strength of the PI silver plated film after treatment increased by about 30% in the peel test.
• Physical treatment: By using plasma treatment technology, the surface activity of the coating is enhanced without changing its original characteristics, further improving its adhesion performance.
• Protective film coating: A transparent protective film has been developed and sprayed onto the surface of the silver plating layer, which not only improves wear resistance but also maintains the original conductivity of the silver plating layer.

experimental data

In order to verify the effectiveness of the post-processing techniques mentioned above, researchers conducted detailed experimental tests:

• Adhesive testing: Using standard peel testing methods, compare the samples before and after treatment. The results showed that the peel strength of the chemically treated sample increased from the untreated 1.5N/mm to 2.0N/mm.
• Wear resistance test: Friction test is conducted on the sample using a wear resistance testing machine. The sample coated with protective film showed a 25% increase in wear resistance index.

conclusion

Based on the above research results, it can be seen thatPI silver plated filmProper post-treatment is essential, as it can not only improve the adhesion, wear resistance, and oxidation resistance of the coating, but also extend the service life of the product. Advanced Institute (Shenzhen) Technology Co., Ltd. will continue to devote itself to the research and development of related technologies, and promote the application of PI silver plated film in a wider range of fields.

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