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Is the plasma temperature of the plasma surface treatment equipment high? Will it damage the material?
After the previous introduction, everyone should know that the plasma generated by the plasma surface treatment equipment belongs to the category of low-temperature plasma, so the temperature of the plasma generated by the equipment is not high. Under normal circumstances, treatment with plasma surface treatment equipment will not cause damage to the material. Why do you say that?
Regarding the temperature of the plasma, the average energy of the particles is generally used to express the temperature. When an electron passes through an electric field within the 1V characteristic value range, the energy obtained by the electron from the electric field is W=1eV, and the corresponding temperature is 11600K.
Generally, the temperature at which the collision between electrons reaches thermodynamic equilibrium is called Te, which is the temperature of electrons. When the plasma surface treatment equipment collides with ions, the temperature at which the thermodynamic equilibrium is reached is Ti, that is, the ion temperature. In fact, Te and Ti are usually different.
When the high-pressure condition is close to the atmospheric pressure, the electrons, ions, and neutral particles will fully exchange kinetic energy due to intense collisions, and the plasma will reach a thermal equilibrium state. The electron temperature is close to the ion temperature, which is a thermal plasma in a low-temperature plasma. However, the plasma generated during cleaning in a vacuum and low-pressure environment is often in a non-thermal equilibrium state, and the electron temperature is much higher than the ion temperature, which is a cold plasma in a low-temperature plasma.
Therefore, judging from the nature of the plasma generated by the plasma surface treatment equipment, the treatment of materials with it will generally not cause damage to the materials, but the influence of factors such as the heat-resistant temperature of the materials and the processing time needs to be taken into consideration.
Chengfeng Zhizhi has focused on the research and development of plasma cleaners for 20 years. If you want to know more product details or have questions about the use of the equipment, please contact us!
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