Next Article in Journal
Insight into the Sustainable Integration of Bio- and Petroleum Refineries for the Production of Fuels and Chemicals
Next Article in Special Issue
Surface Characteristics of Polymers with Different Absorbance after UV Picosecond Pulsed Laser Processing Using Various Repetition Rates
Previous Article in Journal
Biodegradable Polylactide–Poly(3-Hydroxybutyrate) Compositions Obtained via Blending under Shear Deformations and Electrospinning: Characterization and Environmental Application
Previous Article in Special Issue
Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
Open AccessArticle

Laser-Induced Periodic Surface Structuring of Poly(trimethylene terephthalate) Films Containing Tungsten Disulfide Nanotubes

1
Grupo de Aplicaciones del Láser y la Fotónica (ALF-USAL), Universidad de Salamanca, Pl. de la Merced s/n, 37008 Salamanca, Spain
2
Instituto de Química Física Rocasolano, Consejo Superior de Investigaciones Científicas (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain
3
CONACYT-Unidad Foránea Monterrey, Centro de Investigación Científica y de Educación Superior de Ensenada, Alianza Centro 504, PIIT, Apodaca, Nuevo León CP 66629, Mexico
4
Department of Materials Technology, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Piastow Av. 19, PL-70310 Szczecin, Poland
5
Department of Technical Physics, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Piastow Av. 19, PL-70310 Szczecin, Poland
6
Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Científicas (IEM-CSIC), Serrano 121, 28006 Madrid, Spain
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(5), 1090; https://doi.org/10.3390/polym12051090
Received: 16 April 2020 / Revised: 5 May 2020 / Accepted: 5 May 2020 / Published: 10 May 2020
(This article belongs to the Special Issue Laser Processing of Polymer Materials II)
We report the study of the formation of Laser Induced Periodic Surface Structures (LIPSS), with UV femtosecond laser pulses (λ = 265 nm), in free-standing films of both Poly(trimethylene terephthalate) (PTT) and the composite PTT/tungsten disulfide inorganic nanotubes (PTT-WS2). We characterized the range of fluences and number of pulses necessary to induce LIPSS formation and measured the topography of the samples by Atomic Force Microscopy, the change in surface energy and contact angle using the sessile drop technique, and the modification in both Young’s modulus and adhesion force values with Peak Force-Quantitative Nanomechanical Mapping. LIPSS appeared parallel to the laser polarization with a period close to its wavelength in a narrow fluence and number of pulses regime, with PTT-WS2 needing slightly larger fluence than raw PTT due to its higher crystallinity and heat diffusion. Little change was found in the total surface energy of the samples, but there was a radical increase in the negative polar component (γ−). Besides, we measured small variations in the samples Young’s modulus after LIPSS formation whereas adhesion is reduced by a factor of four. This reduction, as well as the increase in γ−, is a result of the modification of the surface chemistry, in particular a slight oxidation, during irradiation. View Full-Text
Keywords: LIPSS; nanostructures; nanocomposites; laser material processing; ultrashort pulses LIPSS; nanostructures; nanocomposites; laser material processing; ultrashort pulses
Show Figures

Graphical abstract

MDPI and ACS Style

Prada-Rodrigo, J.; Rodríguez-Beltrán, R.I.; Paszkiewicz, S.; Szymczyk, A.; Ezquerra, T.A.; Moreno, P.; Rebollar, E. Laser-Induced Periodic Surface Structuring of Poly(trimethylene terephthalate) Films Containing Tungsten Disulfide Nanotubes. Polymers 2020, 12, 1090.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop