Timeliness of Cold Plasma Treatment on Surface Modification of Polylactic Acid Fibers
DOI:
https://doi.org/10.12974/2311-8717.2023.11.05Keywords:
PLA fiber, Cold plasma, Solution pretreatment, Surface morphology, TimelinessAbstract
Polylactic acid (PLA) fiber is a promising material due to its biodegradability, excellent mechanical properties, and good biocompatibility. However, its surface is chemically inert and has poor interfacial compatibility with gases due to a low number of polar groups. To address this issue, this study utilized cold plasma and solution wet pretreatment with varying pH levels to modify the surface of PLA fibers. The use of solution wet pretreatment helped mitigate the negative effects of plasma treatment on the timeliness, which improved the long-term stability of the PLA fibers surface properties. These modifications increased the suitability of the material for various applications. The surface of PLA fibers was modified using cold plasma and wet pretreatment with pH solutions of varying degrees. The surface chemical composition and hydrophilicity of modified fibers remained relatively stable for up to 120 days. Conversely, unpretreated fibers reverted to their original chemically inert state after 14 days.
References
H.R. Kricheldorf, I. Kreiser‐Saunders, C. Jürgens, D. Wolter, Polylactides ‐ synthesis, characterization and medical application, Macromolecular Symposia. 1996; 103: 85-102. https://doi.org/10.1002/masy.19961030110
J.P. Penning, H. Dijkstra, A.J. Pennings, Preparation and properties of absorbable fibres from l-lactide copolymers, Polymer. 1993; 34: 942-951. https://doi.org/10.1016/0032-3861(93)90212-S
O. Kaynan, Y. Atescan, E. Ozden-Yenigun, H. Cebeci, Mixed Mode delamination in carbon nanotube/nanofiber interlayered composites, Composites Part B: Engineering. 2018; 154: 186-194. https://doi.org/10.1016/j.compositesb.2018.07.032
S.U. Khan, J.-K. Kim, Improved interlaminar shear properties of multiscale carbon fiber composites with bucky paper interleaves made from carbon nanofibers, Carbon. 2012; 50: 5265-5277. https://doi.org/10.1016/j.carbon.2012.07.011
Z. Chen, T. Yu, Y.H. Kim, Z. Yang, Y. Li, T. Yu, Different-structured nanoclays incorporated composites: Computational and experimental analysis on mechanical properties, Composites Science and Technology. 2021; 203: 108612. https://doi.org/10.1016/j.compscitech.2020.108612
H. Yao, G. Zhou, W. Wang, M. Peng, Effect of polymer-grafted carbon nanofibers and nanotubes on the interlaminar shear strength and flexural strength of carbon fiber/epoxy multiscale composites, Composite Structures. 2018; 195: 288-296. https://doi.org/10.1016/j.compstruct.2018.04.082
N. Encinas, M. Lavat-Gil, R.G. Dillingham, J. Abenojar, M.A. Martínez, Cold plasma effect on short glass fibre reinforced composites adhesion properties, International Journal of Adhesion and Adhesives. 2014; 48: 85-91. https://doi.org/10.1016/j.ijadhadh.2013.09.026
S. Beikzadeh, A. Khezerlou, S.M. Jafari, Z. Pilevar, A.M. Mortazavian, Seed mucilages as the functional ingredients for biodegradable films and edible coatings in the food industry, Advances in Colloid and Interface Science. 2020; 280: 102164. https://doi.org/10.1016/j.cis.2020.102164
Y.X. Pan, C.-J. Liu, P. Shi, Preparation and characterization of coke resistant Ni/SiO2 catalyst for carbon dioxide reforming of methane, Journal of Power Sources. 2008; 176: 46-53. https://doi.org/10.1016/j.jpowsour.2007.10.039
Y.X. Pan, H.P. Cong, Y.L. Men, S. Xin, Z.Q. Sun, C.J. Liu, S.H. Yu, Peptide Self-Assembled Biofilm with Unique Electron Transfer Flexibility for Highly Efficient Visible-Light-Driven Photocatalysis, ACS Nano. 2015; 9: 11258-11265. https://doi.org/10.1021/acsnano.5b04884
