Changes in the conductivity of conductive foam after long-term use and preventive measures

Conductive foam, as an importantelectromagnetic shielding materialWidely used in electronic products, communication equipment, aerospace and other fields. However, with prolonged use, the conductivity of conductive foam may change, affecting its effectiveness. This article aims to explore the changes in the conductivity of conductive foam after long-term use, and propose corresponding preventive measures. At the same time, relevant data and experimental results from Advanced Institute (Shenzhen) Technology Co., Ltd. and Research Platinum brand conductive foam are cited for explanation.

Changes in the conductivity of conductive foam after long-term use

experimental design

In order to study the changes in the conductivity of conductive foam after long-term use, we designed the following experiments:

1. Sample selection: SelectYanbo brand conductive foamAs an experimental sample. Yanbo brand conductive foam is composed of unique materials and combined with advanced manufacturing processes, it has good conductivity and stability, and is widely used in various electronic devices.
2. Experimental conditions: Place 20 conductive foam samples of Yanbo brand in a simulated actual working environment, including different temperature (20-50 degrees Celsius), humidity (30% -80%), and pressure (0.1-1MPa) conditions, and continuously observe and record their changes in conductivity.
3. Testing method: The four probe method is used to measure the resistivity of the sample, and regular tests (such as every 3 months) are conducted to evaluate the changes in its conductivity.

experimental result

After a year of continuous observation, we found that the conductivity of conductive foam has indeed undergone a certain degree of change. The specific data is as follows:

• Initial resistivity: approximately 10 ^ 4 Ω· cm
• One year later, the resistivity will increase to about 10 ^ 5 Ω· cm, with an increase of about 10 times

This result indicates that the conductivity of conductive foam does indeed decrease after prolonged use. This may be the result of the combined effects of material aging, environmental factors such as humidity and temperature, and mechanical stress.

preventive measure

To address the issue of decreased conductivity of conductive foam, we can take the following preventive measures:

1. Reasonable selection of materials

Choose conductive foam products with reliable quality and high stability, such asYanbo brand conductive foamThis type of product undergoes strict quality control and testing, and can maintain stable conductivity for a long time. The Yanbo brand conductive foam adopts a unique composite technology of conductive carbon fiber material and nano silver. The conductive carbon fiber has excellent conductivity and mechanical strength, while the nano silver can significantly improve the conductivity stability of the material.

2. Control the usage environment

• Temperature and humidity: EnsureConductive foamThe temperature and humidity of the usage environment should be within a reasonable range, avoiding the impact of high or low temperature and high humidity on material properties. On the basis of reasonable material selection, controlling the usage environment can further reduce the risk of decreased conductivity of conductive foam.
• Pressure: Avoid applying excessive pressure to conductive foam, especially high-density foam, to prevent it from losing elasticity and affecting its conductivity.

3. Regular maintenance and inspection

Regularly inspect and maintain conductive foam, promptly identify and address any potential issues. For example, check the surface of the foam for damage, contamination, etc., and replace damaged foam in a timely manner.

4. Storage conditions

Conductive foam that has not been used for a long time should be stored in a dry, cool, and ventilated place to avoid moisture, heat, or direct sunlight. At the same time, attention should be paid to checking whether the shelf life and storage conditions of the materials meet the requirements.

5. Technical support

Advanced Institute (Shenzhen) Technology Co., LtdWe provide technical support and adopt advanced material preparation and testing techniques to improve the performance stability and service life of conductive foam. For example, by optimizing material formulations and improving production processes, the aging resistance and conductivity stability of conductive foam can be enhanced. Research by the Advanced Institute shows that by using specific coating techniques, the increase in electrical resistivity of conductive foam can be reduced by at least 30% in specific environments.

conclusion

After prolonged use, the conductivity of conductive foam does indeed decrease to a certain extent. To prevent this problem, we can take comprehensive measures to ensure the stability and reliability of conductive foam, including material selection, environmental control during use, regular maintenance and inspection, storage conditions, and advanced technical support. Through the implementation of these measures, we can effectively extend the service life of conductive foam and improve its application effect in various electronic devices.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.