Influence of radiation cross-linking on fiber orientation in vibration welds of Polyamide 66

Menacher, Markus; Leisen, Christoph; Drummer, Dietmar

doi:10.1002/pc.23607

Cited by 4 publications

(3 citation statements)

References 9 publications

(11 reference statements)

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“…The elongation at break of composites was expected to decrease because of the formation of the network structure between the polymer and the filler (5 wt%) and the degree of crosslinking increased as the radiation dose increased. This significant increase might account for the decrease in the elongation at break which make composites inflexible and harder ( Menacher et al, 2017 ).…”

Section: Resultsmentioning

confidence: 99%

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Tarawneh

Saraireh

Chen

et al. 2021

Radiation Physics and Chemistry

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A thermoplastic elastomer (TPE) based nanocomposite with the same weight ratio of hybrid nanofillers composed of carbon nanotubes (CNTs) and montmorillonite nanoclay (DK4) was prepared using a melt blending technique with an internal mixer. The TPE composite was blended from polylactic acid (PLA), liquid natural rubber (LNR) as a compatibilizer and natural rubber (NR) in a volume ratio of 70:10:20, respectively. The weight ratio of CNTs and DK4 was 2.5 wt%. The prepared samples were exposed to gamma radiation at range of 0–250 kGy. After exposure to gamma radiation, the mechanical, thermo-mechanical, thermal and electrical conductivity properties of the composites were significantly higher than unirradiated TPE composites as the irradiation doses increased up to 150 kGy. Transmission electron microscopy (TEM) micrographs revealed the good distribution and interaction between the nano-fillers and the matrix in the prepared TPE hybrid nanocomposites. In summary, the findings from this work definite that gamma irradiation might be a viable treatment to improve the properties of TPE nanocomposite for electronic packaging applications.

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Section: Resultsmentioning

confidence: 99%

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Tarawneh

Saraireh

Chen

et al. 2021

Radiation Physics and Chemistry

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“…For vibration welding two crosslinked polyamide 66s, weld strengths up to the base material strength are possible . The general theories, cocrystallization and interdiffusion, cannot completely explain the adhesion for these crosslinked polymers after welding .…”

Section: Introductionmentioning

confidence: 99%

Post‐crosslinking behavior of radiation crosslinked polyamide 66 during vibration welding

Leisen

Seefried

Drummer

2016

Polymer Engineering & Sci

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Vibration welding of radiation crosslinked polyamide 66 leads to a different relationship between process, structure, and properties. The radiation‐induced altered material properties result in an impeded squeeze flow and higher temperatures in the weld. It is possible to achieve weld strengths up the value of the base material. General theories cannot completely explain the adhesion for these crosslinked polymers. A possible explanation could be an additional temperature‐dependent adhesion mechanism. The high temperatures during vibration welding could affect the degree of crosslinking and lead to a post‐irradiation crosslinking of the polyamide. These additional links across the joining zone may be an additional adhesion mechanism and could explain the high weld strength of crosslinked polymers. The scope of this paper is to investigate the influence on the degree of crosslinking from material and welding parameters and to correlate these results with temperatures and weld strengths generated in a vibration welding process. POLYM. ENG. SCI., 56:735–742, 2016. © 2016 Society of Plastics Engineers

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“…Zur Herstellung von Hybridverbindungen, bestehend aus metallischen Werkstoffen und thermoplastischen Faserverbundwerkstoffen, werden unterschiedliche Ansätze für stoff-und/oder formschlüssige Verbindungen betrachtet [13][14][15][16].…”

Section: Introductionunclassified

Krafteinleitungselement zur Funktionalisierung von thermoplastischen Faserverbundbauteilen

Stefanziosa¹

2016

Zeitschrift Kunststofftechnik

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Krafteinleitungselement zur Funktionalisierung von thermoplastischen Faserverbundbauteilen Zur Funktionalisierung von thermoplastischen Faserverbundbauteilen wird auf Basis bestehender Lösungsansätze ein zweiteiliges Krafteinleitungselement aus Kunststoff entwickelt, welches nach der Herstellung eines Faserverbundbauteils aufgebracht werden kann. Die rotationssymmetrischen Eigenschaften des Elements stellen eine einfache Handhabung im Zuführ-und Schweißprozess sicher. Mithilfe der Ultraschallfügetechnik lässt sich das Krafteinleitungselement in wenigen Sekunden stoffschlüssig aufschweißen. Die Bestimmung mechanischer Kennwerte der Schweißverbindung erfolgt für unterschiedliche thermoplastische Faserverbundwerkstoffe. Zudem werden die Auswirkungen des Elements auf die Materialeigenschaften der Faserverbundwerkstoffe thematisiert. Das Krafteinleitungselement eignet sich im Automobilbereich beispielsweise für die Befestigung von Kabelbäumen, Schallschutzisolierungen oder Steuergeräten. Force-application element for the Functionalization of Thermoplastic Fiber Composite Components This paper presents a newly developed two-part force-application element made of thermoplastic to functionalize thermoplastic fiber composite components after the fiber composite component production. The element`s rotational symmetry ensures a simple handling, both in the welding and feeding process. Ultrasonic joining technology enables a cohesive bond of the element in just a few seconds. The mechanical characteristics of the weldment are determined for different thermoplastic fiber-reinforced composites. Furthermore, the influence of the element on the properties of the fiberreinforced composite is investigated. The force-application element is suitable in the automotive sector, for example for the attachment of cable harnesses, noise insulations or control devices.

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Influence of radiation cross-linking on fiber orientation in vibration welds of Polyamide 66

Cited by 4 publications

References 9 publications

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Post‐crosslinking behavior of radiation crosslinked polyamide 66 during vibration welding

Krafteinleitungselement zur Funktionalisierung von thermoplastischen Faserverbundbauteilen

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