Ultrasonic and Impulse Welding of Polylactic Acid Films

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Vogel J, Grewell D, Kessler MR, Drummer D, Menacher M
Zeitschrift: Polymer Engineering and Science
Verlag: Wiley-Blackwell
Jahr der Veröffentlichung: 2011
Band: 51
Heftnummer: 6
Seitenbereich: 1059-1057
ISSN: 0032-3888


The weldability of polylactic acid (PLA) is examined in this article. Biaxially oriented PLA films of various thicknesses were joined with impulse and ultrasonic welding techniques. Relatively high weld strengths were achieved with impulse welding over a wide range of welding parameters. Ultrasonic welding produced high weld strengths with relatively short cycle times. In detail, ultrasonic welded samples had a weld factor (weld strength/base material strength) of 1 at cycle times of 0.25 sec. The weld factor was significantly lower at shorter weld times and weld times above 0.35 sec. In contrast, 100-μm thick samples joined by impulse welding for 2-3 sec had a weld factor of 1 and a standard deviation of only ±5%. The peak temperature during the impulse welding was measured to determine the fusion temperatures of the films. Mechanical, thermal, and optical analysis was used to examine the properties of the PLA at various welding and annealing conditions. POLYM. ENG. SCI., 2011. © 2011 Society of Plastics Engineers.

FAU-Autoren / FAU-Herausgeber

Drummer, Dietmar Prof. Dr.-Ing.
Lehrstuhl für Kunststofftechnik
Menacher, Markus
Lehrstuhl für Kunststofftechnik

Autor(en) der externen Einrichtung(en)
Iowa State University of Science and Technology (ISU)


Vogel, J., Grewell, D., Kessler, M.R., Drummer, D., & Menacher, M. (2011). Ultrasonic and Impulse Welding of Polylactic Acid Films. Polymer Engineering and Science, 51(6), 1059-1057. https://dx.doi.org/10.1002/pen.21919

Vogel, Julius, et al. "Ultrasonic and Impulse Welding of Polylactic Acid Films." Polymer Engineering and Science 51.6 (2011): 1059-1057.


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