Glass welding conductive copper pasteIt is an advanced technological material, mainly composed of copper powder. Copper powder plays a crucial role in conducting electricity. However, the particle size of copper powder is a matter that needs to be taken seriously. This article will explore in depth the important influence of copper powder particle size on glass welding conductive copper paste from two aspects: conductive effect and printing operation.
The influence of copper powder particle size on conductivity:
Firstly, the particle size of copper powder directly affects the conductivity effect. When the particle size of copper powder is too small, the number of contact points between copper powder particles will increase, resulting in a decrease in the contact area of individual particles. The result is that the conductive path is restricted and the resistance increases. In addition, finer copper powder is more susceptible to oxidation. Once the copper powder oxidizes to a certain extent, it will inevitably affect the conductivity of the copper paste. Therefore, the appropriate particle size of copper powder is the key to ensuring the conductivity effect.
The influence of copper powder particle size on printing operation:
Secondly, the particle size of copper powder also affects the printing operation. When the average particle size of copper powder is larger, printing becomes more difficult. Larger particles can lead to poor adhesion during the printing process, which may result in uneven printing. In addition, it can also be very inconvenient to operate. Therefore, selecting the appropriate copper powder particle size is crucial for achieving high-quality printing operations.
In depth analysis: Balanced selection of copper powder particle size
In practical production and application, we need to choose and balance between large and small particle sizes. A copper powder particle size that is too small can result in poor conductivity, increased resistance, and even cause the copper paste to lose its conductivity. However, excessively large copper powder particle size will increase printing difficulty and reduce printing quality. Therefore, selecting the appropriate copper powder particle size has become a key task.
For example:
In a certain study, scientists systematically investigated the performance of copper powders with different particle sizes in terms of conductivity and printing operations. They found that when the particle size of copper powder is controlled at the sub micron level of spherical or sheet-like, good conductivity and printing operation can be achieved, and it has high stability. This is because submicron copper powder can maintain a large contact area without being too easily oxidized, and it is also easier to operate during the printing process.
Conclusion:
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Glass welding conductive copper pasteThe particle size of copper powder is an important factor affecting the conductivity and printing operation. The appropriate particle size of copper powder can ensure lower resistance and improve the quality and stability of printing. Therefore, in production and application, we should scientifically select the particle size of copper powder to ensure the optimal performance and reliability of glass welding conductive copper paste.
