Degradation of poly(l-lactide) under CO2 laser treatment above the ablation threshold

• Published in: Polymer degradation and stability Vol. 109; pp. 97 - 105
• Main Authors: Antończak, Arkadiusz J., Stępak, Bogusz D., Szustakiewicz, Konrad, Wójcik, Michał R., Abramski, Krzysztof M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.11.2014; Elsevier
• Subjects: Applied sciences; ATR-FTIR; CO2 laser modification; Coating, metallization, dyeing; DSC; Exact sciences and technology; GPC/SEC; Machinery and processing; Plastics; Poly(l-lactide); Polymer degradation; Polymer industry, paints, wood; Technology of polymers; GPC/SEC; CO2 laser modification; Poly(l-lactide); Polymer degradation; DSC; ATR-FTIR; Differential scanning calorimetry; Optically active polymer; Laser assisted processing; laser modification; Poly(L-lactide); Experimental study; CO; Lactone polymer; Quantitative surface analysis; Gas chromatography; Wettability; laser; Reaction mechanism; Surface properties; Photochemical stability; Photoelectron spectrometry; Chemical composition; Fourier-transformed infrared spectrometry; Photochemical degradation

In this paper, we present an analysis of changes in material properties in the heat affected zone HAZ induced by the CO2 laser at the fluence well above the ablation threshold. The complexity of the processes of decomposition implies the need for simultaneous use of many selective analytical techniq...