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Special treatments

We are specialists in the area of powder surface treatment, but we also offer development of further processes such as hydrophobic treatment, plasma sputtering, and fine cleaning of micro surfaces or according to particular application. We cooperate with specialized laboratories and institutions, see section Research and development.

Hana Šourková
research and development
tel.: +420 481 322 223
hana.sourkova@surface-treat.cz

Jiří Cerman
research and development
tel.:+420 481 322 223
jiri.cerman@surface-treat.cz

Hydrophobic plasma treatment

Hydrophobic surfaces find different potential applications in self-cleaning surfaces, such as surfaces with controlled wettability, anti-sticking and antifouling materials.

The laboratory microwave low-pressure system MAIII is used for realization equipped with evaporator to apply hydrophobic treatments. Low-pressure plasma treatment is typically operated as a batch process with advantage of providing more process parameters and allowing sophisticated and complicated processes.

The method uses the chemical precursor to achieve the hydrophobicity of the surface. Polysiloxanes such as hexamethyldisiloxane (HMDSO) are frequently used as hydrophobic agents in many applications. Moreover, HMDSO is well-known precursor in plasma enhanced polymerization processes.

HMDSO is vaporized in evaporator of liquid precursors connected to the vacuum chamber. HMDSO reacts with working gas and causes the changes of chemical composition onto the material surface or deposition of a thin layer.

Left side: contact angel 34°, silica glass
Right side: contact angel 40°, silica glass covered by hydrophobic silica

Hydrophobic layer deposited onto the surface of silica materials by low-pressure plasma treatment.

Hydrophobic treatment of cellulose for application in composite materials by low-pressure plasma treatment.

Further information about equipment for plasma sputtering are available in the section „plasma systems“ .

We provide service in the area of small parts and micro surfaces cleaning according to specific requirements of the customer.

 Do not hesitate to contact us with your specific requirements and technical parameters. We will answer your questions in short time and offer possible solution.