Physical and Mechanical Research for Synthesis of Carbon Emocompatibly Coatings for Artificial Heart

To create an implant of the circulatory system using materials of different origin. The main requirements for such materials: rapid adaptation to the body and a long service life. Important characteristics are the hydrophobicity and surface roughness. Surface modification of materials by coating is...

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Bibliographic Details
Main Authors: Voznesenskaya, Anna, Morozov, Valentin, Zhdanov, Alexey
Format: Conference Proceeding
Language:English
Subjects:
Artificial organs
Atomic force microscopy
Carbon
Carbon nanotubes
Circulatory system
Coatings
Colloids
Heart
Hydrophobicity
Laser beam heating
Laser deposition
Polyurethane resins
Protective coatings
Pyrolytic graphite
Service life
Substrates
Surface roughness
Titanium oxides
Vacuum deposition
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Summary:To create an implant of the circulatory system using materials of different origin. The main requirements for such materials: rapid adaptation to the body and a long service life. Important characteristics are the hydrophobicity and surface roughness. Surface modification of materials by coating is the most common way to increase the functional properties. The study consisted in finding the perfect combination of the coating material and the technology of its application to the polyurethane product to increase its service life. In this study, we were applied two different methods of carbon coatings, which do not require heating of the polyurethane substrate: the method of laser deposition in a vacuum magnetron vacuum deposition method, and the pulverization of fine colloidal solution. Pulverization method applied to colloids with different powder: carbon nanotubes (CNT) and highly oriented pyrolytic graphite (HOPG), titanium oxide. Visualization of the surface produced on the optical, scanning electron and atomic force microscopy. Out of the samples, the most hydrophobic properties of the coated, fine colloidal solution HOPG caused by pulverization.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/20152702009