Effects of plasma treatment on biodegradation of natural and synthetic fibers
Nyssanbek M. Kuzina N. Kondrashchenko V. Azimov A.
December 2024Nature Publishing Group
npj Materials Degradation
2024#8Issue 1
This study investigates the application of plasma treatment as a means to enhance biodegradation and modify the structural characteristics of fibrous composites. The methodological component of the study includes the selection of the research object; production of composites; low-temperature plasma treatment, and treatment of biodegradability and mechanical strength of samples. The strengthening of fibers with cellulose leads to a significant improvement in mechanical strength. Such an indicator as mechanical strength increases from 18 to 21 MPa. Treatment of natural fibers with low-temperature plasma led to an increase in mechanical strength from 18 to 25 MPa. Treating reinforced fibers with low-temperature plasma currently results in an even greater enhancement in mechanical strength, increasing from 18 to 29 MPa.The electron microscopy of samples reveals some differences in cell wall microfibrils between plasma-treated and non-treated samples. The non-treated fibres are found to have chips and voids. Meantime, the plasma-treated fibres show structural changes in certain regions which resemble wood charring. Through a comprehensive analysis, this research underscores the substantial impact of plasma treatment on the degradation kinetics and morphological features of cellulose-based composites. The results reveal distinct alterations in the composition and behavior of plasma-treated fibres, signifying a shift towards enhanced biodegradability. The natural fibres examined in this study contained 28–30% lignin, whereas the composites exhibited a lower lignin content of 21–23%. These findings corroborate the inference that plasma treatment induces significant changes in fibre structure, accelerating the biodegradation process by 7 days.
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Department of Textile Industry Technology and Materials Science, M.Kh. Dulaty Taraz Regional University, Taraz, Kazakhstan
Department of Physics, Kazan National Research Technological University, Kazan, Russian Federation
Department of Building Materials and Technologies, Russian University of Transport, Moscow, Russian Federation
Scientific Research Institute Natural and Technical Sciences, South Kazakhstan University named after M. Auezova, Shymkent, Kazakhstan
Department of Textile Industry Technology and Materials Science
Department of Physics
Department of Building Materials and Technologies
Scientific Research Institute Natural and Technical Sciences
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