Laser transmission welding of poly(lactic acid) and polyamide66/sepiolite nanocomposites

ABSTRACT Influence of sepiolite nanoclay on the properties of the resulting join between poly(lactic acid) (PLA) and different Polyamide66 (PA66)/nanoclay nanocomposites was studied in this work. Six different polymer nanocomposites based on PA66 were manufactured through a melt compounding process...

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Bibliographic Details
Published in:Journal of applied polymer science 2018-09, Vol.135 (36), p.n/a
Main Authors: Navas‐Martos, Francisco J., Yebra‐Rodríguez, África, La Rubia, M. Dolores
Format: Article
Language:English
Subjects:
Laser beam welding
laser welding
Materials science
Mechanical properties
Morphology
nanoclay
nanocomposite
Nanocomposites
PA66
PLA
Polylactic acid
Polymers
Scanning electron microscopy
Sepiolite
sepolite
Shearing
Welding
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Summary:ABSTRACT Influence of sepiolite nanoclay on the properties of the resulting join between poly(lactic acid) (PLA) and different Polyamide66 (PA66)/nanoclay nanocomposites was studied in this work. Six different polymer nanocomposites based on PA66 were manufactured through a melt compounding process by adding a fixed 1.64 wt % of a commercial IR absorber additive and the respective weight percentages of sepiolite to the polymer matrix. Several nanocomposite/PLA joints were finally performed by means of the transmission laser welding technology and the resulting weldings were characterized in terms of mechanical properties by performing peeling and shearing tests. Furthermore, both welded and mechanically tested samples were also analyzed by scanning electron microscopy in order to study the morphology of the weld seam. The results of the performed tests show that the addition of sepiolite to the PA66 improves the welding performance only in those cases in which the percentage of sepiolite of the nanocomposites is higher than 5 wt %. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46638.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46638