The relationship between surface hardness characteristics and gold plating thickness of PET gold-plated film

PET gold-plated filmAs a high-performance material, it is widely used in multiple industries such as electronics, construction, furniture, and packaging. The surface hardness and gold plating thickness are key parameters that affect its application performance. This article will focus on exploring the relationship between the surface hardness characteristics of PET gold plating film and the gold plating thickness, and analyze it in conjunction with the products and technologies of Advanced Institute (Shenzhen) Technology Co., Ltd.

Overview of PET Gold Plated Film

PET gold plating film refers to a thin film coated with a layer of metallic gold on the surface of polyethylene terephthalate (PET) film. PET is a type of polyester plastic with excellent mechanical properties, heat resistance, and chemical resistance. The gold layer formed on the surface of PET film through electroplating process provides good conductivity, corrosion resistance, and decorative effect.

Surface hardness characteristics

Surface hardness is a measure of a material's ability to resist external mechanical forces such as scratches, indentations, etc. The surface hardness of PET gold plating film depends not only on the hardness of the PET substrate itself, but also on the influence of the gold plating layer. The hardness and thickness of the gold plating layer directly affect the overall hardness performance of PET gold plating film.

The influence of gold plating thickness

1. Thinner gold plating layer:
   • Advantages: Retains the flexibility of PET substrate, suitable for applications that require bending and folding.
   • Disadvantages: It may increase contact resistance, affect signal transmission efficiency and corrosion resistance, thereby reducing the service life of PET gold plating film.
2. Moderate gold plating layer:
   • Advantages: Provides good conductivity and corrosion resistance, ensuringPET gold-plated filmStable operation in various application environments.
   • Hardness performance: A moderately thick gold plating layer can enhance the hardness of PET gold plating film while maintaining good flexibility and processability.
3. Thicker gold plating layer:
   • Advantages: Significantly improve conductivity and corrosion resistance, suitable for high demand application scenarios.
   • Disadvantages: It may change the shape and size of PET film, increase costs, and excessive coating may lead to high hardness, affecting processing performance.

Experimental data and analysis

Adopting advanced institute productionPET gold-plated filmThe thickness of the gold plating layer on the sample is set to 5 μ m, 25 μ m, 50 μ m, and 100 μ m, respectively. Measure the block resistance using a four probe tester to evaluate the conductivity performance; Simultaneously conduct corrosion resistance testing and observe the corrosion of the gold plating layer in salt solutions of different concentrations.

• Conductivity: As the thickness of the gold plating layer increases, the sheet resistance of the PET gold plating film gradually decreases, and the conductivity significantly improves. From 5 μ m to 100 μ m, the block resistance decreases from 100 Ω/□ to 25 Ω/□.
• Corrosion resistance: The thinner gold plating layer (5 μ m) showed slight corrosion after immersion in salt solution, while the gold plating layer above 25 μ m exhibited excellent corrosion resistance without obvious corrosion phenomenon.

Although a thicker gold plating layer improves conductivity and corrosion resistance, hardness testing results show that the thicker the gold plating layer, the higher the surface hardness of the PET gold plating film. Excessive coating may cause changes in the performance of PET film substrate, affecting the balance of overall hardness.

The technological advantages of the Advanced Institute

Advanced Institute has advanced production technology and strict quality control system in the field of PET gold plating film. Its products have accurate coating thickness control technology, excellent conductivity and corrosion resistance, as well as good surface hardness performance. Through customized services based on customer's specific needs, Advanced Institute can provide customized PET gold plating film solutions.

Application Fields and Prospects

PET gold-plated film is widely used in the fields of conductive connections, shielding, electrodes, and decoration of electronic devices due to its good conductivity, corrosion resistance, mechanical properties, and decorative effects. With the advancement of emerging technologies such as 5G communication, the Internet of Things, and wearable devices, the demand for high-performance materials continues to grow,PET gold-plated filmThe market prospects will be even broader.

conclusion

The surface hardness characteristics of PET gold-plated film are closely related to the thickness of the gold plating. By reasonably controlling the thickness of the gold plating layer, good surface hardness performance can be achieved while ensuring conductivity and corrosion resistance. Advanced Institute, with its advanced production technology and strict quality control, provides high-quality PET gold-plated film products to the market, meeting the application needs of different fields. In the future, with the continuous advancement of preparation technology and further cost reduction, the application fields of PET gold plating film will be further expanded, providing strong support for more innovative applications.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.