Electret properties and wettability of polymer materials treated by DC glow discharge
DOI:
https://doi.org/10.33910/2687-153X-2024-5-4-202-204Keywords:
direct-current glow discharge, plasma treatment, wettability, polymer electrets, hydrophobic recoveryAbstract
We studied the influence of electret charge on the hydrophilicity of polytetrafluoroethylene (PTFE) films treated by direct-current (DC) glow discharge. DC discharge treatment of polymers leads to significant hydrophilization and appearance of surface charges on initially hydrophobic polymer surfaces. It was shown that the storage of plasma-treated PTFE films in environments with different relative humidity leads to an increased water contact angle along with a decreased surface potential. The process of hydrophobic recovery of plasma-treated PTFE films is considered as a consequence of charge relaxation in a humid atmosphere. It was established that surface charging of plasma-treated polymers makes a significant contribution to their hydrophilicity.
References
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