Surface properties of polylactide and hydroxyapatite-based composite materials treated with low-temperature plasma streams

Effects of the low-temperature plasma exposure, γ-irradiation, and joint g-irradiation and plasma exposure on the structure and surface properties of thin films based on polylactic acid (PLA) have been investigated. Films were obtained by the method a solvent-casting. It has been shown that films based on polylactic acid have topographically different sides: a smoother inner side and embossed outer one. PLA films have properties close to those hydrophobic, with a contact angle in the range of 70°-73° regardless of the surface side and belong to a weakly polar materials. The combined effect of plasma and gamma radiation slightly changes the surface topography. The effect of low-temperature plasma on the surface of the films leads to a decrease in the contact angle by 13°-55° (9-11%) and an increase in surface energy due to the polar component. The results of in vivo experiments on rabbits are presented. Biomicroscopy, optical coherence tomography, morphological and electron microscopic examination of the cornea after implantation of initial and radiation and plasma treated films showed that implantation of the films in the anterior chamber is not accompanied by a pronounced inflammatory reaction and increased intraocular pressure, while maintaining the morphological structure of the cornea almost unchanged.

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Effect of Low-Temperature Plasma Nitriding on Corrosion and Surface Properties of Duplex Stainless Steel UNS S32205

Journal of Materials Engineering and Performance ◽

10.1007/s11665-020-04753-6 ◽

2020 ◽

Vol 29 (4) ◽

pp. 2612-2622

Author(s):

Yamid E. Núñez de la Rosa ◽

Oriana Palma Calabokis ◽

Paulo César Borges ◽

Vladimir Ballesteros Ballesteros

Keyword(s):

Stainless Steel ◽

Low Temperature ◽

Duplex Stainless Steel ◽

Surface Properties ◽

Plasma Nitriding ◽

Low Temperature Plasma ◽

Temperature Plasma

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Influence of low-temperature plasma and γ radiation on the surface properties of PET track membranes

Inorganic Materials Applied Research ◽

10.1134/s2075113316050063 ◽

2016 ◽

Vol 7 (5) ◽

pp. 664-672 ◽

Cited By ~ 7

Author(s):

E. O. Filippova ◽

D. A. Karpov ◽

A. V. Gradoboev ◽

V. V. Sokhoreva ◽

V. F. Pichugin

Keyword(s):

Low Temperature ◽

Surface Properties ◽

Low Temperature Plasma ◽

Temperature Plasma ◽

Γ Radiation ◽

Track Membranes

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Effect of Low-Temperature Plasma Treatment and γ Irradiation on the Surface Properties of Thin Films Based on Polylactic Acid

Inorganic Materials Applied Research ◽

10.1134/s207511332103014x ◽

2021 ◽

Vol 12 (3) ◽

pp. 664-675

Author(s):

N. M. Ivanova ◽

E. O. Filippova ◽

A. N. Aleinik ◽

V. F. Pichugin

Keyword(s):

Thin Films ◽

Low Temperature ◽

Plasma Treatment ◽

Polylactic Acid ◽

Surface Properties ◽

Low Temperature Plasma ◽

Γ Irradiation ◽

Temperature Plasma

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CHANGES IN SURFACE PROPERTIES OF POLY (ETHYLENE TEREPHTHALATE) TREATED WITH LOW TEMPERATURE PLASMA: EFFECT OF PRETREATMENT WITH DIMETHYLFORMAMIDE

Sen i Gakkaishi ◽

10.2115/fiber.42.2_t69 ◽

1986 ◽

Vol 42 (2) ◽

pp. T69-T73 ◽

Cited By ~ 3

Author(s):

Tomiji Wakida ◽

Haruo Kawamura ◽

Liyuan Han ◽

Kyung Hwan Kim ◽

Tokuju Goto ◽

...

Keyword(s):

Low Temperature ◽

Surface Properties ◽

Ethylene Terephthalate ◽

Low Temperature Plasma ◽

Temperature Plasma ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene ◽

Plasma Effect

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Improvement technologies of surface properties in products with complex geometry by low-temperature plasma impact

Science intensive technologies in mechanical engineering ◽

10.12737/article_5971dbf8eb2259.94178701 ◽

2017 ◽

Vol 2 (8) ◽

pp. 24-29 ◽

Cited By ~ 2

Author(s):

Борис Бржозовский ◽

Boris Brzhozovskiy ◽

Елена Зинина ◽

Elena Zinina ◽

Владимир Мартынов ◽

...

Keyword(s):

Low Temperature ◽

Surface Properties ◽

Complex Geometry ◽

Film Formation ◽

Low Temperature Plasma ◽

Complex Profile ◽

Special Equipment ◽

Temperature Plasma ◽

Metal Products ◽

The Impact

Technologies ensuring the surface properties improvement of complex-profile products by the impact of low-temperature plasma of a combined discharge are shown. The technologies of strengthening and a passivating film formation on the surface are considered by the example of metal products. The technology of surface roughness improvement is considered by the example of metal and non-metal products. It is shown that for the achievement of maximum possible improvement of surface properties in products the development of special equipment is necessary.

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