Journal of Materials Science

, Volume 54, Issue 17, pp 11726–11738 | Cite as

Low-temperature plasma treatment of polylactic acid and PLA/HA composite material

  • Olesya LaputEmail author
  • Irina Vasenina
  • Maria Cecilia Salvadori
  • Konstantin Savkin
  • Daniil Zuza
  • Irina Kurzina
Polymers & biopolymers


Investigations of the surface physicochemical properties of polylactic acid and polylactic acid/hydroxyapatite composite in a 70/30 ratio modified by atmospheric pressure low-temperature glow discharge argon plasma with the pulse duration of 1 μs and 5 μs and repetition rate of 100 kHz are described. Plasma modification of such materials may significantly affect physicochemical properties of surface. The polymerization of l-lactide was carried out at a temperature of 155 °C for 6 h. X-ray diffraction analysis shows that the degree of crystallinity of polylactic acid and composites based on polylactic acid/hydroxyapatite composite increases after plasma treatment due to polymer chain disruption. Infrared spectroscopy indicates that the –C=O absorption band intensity increases with plasma pulse duration, in turn indicating oxidation processes occurring in the polylactic acid surface layers. The wettability characteristics of the materials are improved by the plasma treatment, resulting in decreased water, glycerol, and ethylene glycol contact angle, and enhanced free surface energy.



This work was supported by the Tomsk State University Competitiveness Improvement Program under Grant. Special thanks are extended to the Center for Collective Use at National Research Tomsk State University, the Nanomaterials and Nanotechnologies Research Centre at National Research Tomsk Polytechnic University, and the Thin Films Laboratory of the Institute of Physics of the University of São Paulo, Brazil.

Compliance with ethical standards

Conflict of interest

The authors declare that there is no conflict of interest.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.National Research Tomsk State UniversityTomskRussia
  2. 2.Institute of High Current ElectronicsTomskRussia
  3. 3.P.N. Lebedev Physical InstituteMoscowRussia
  4. 4.Universidade de São PauloSão PauloBrazil

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