“…1c). This result is consistent with previous reports on Mt intercalated with ALA (Ma et al, 2003;Reichert et al, 1998). As described by Reichert et al, protonated ALA entered the interlayer space of Na-Mt by cation exchange.…”
Section: Characterization Of Mt and Mt-ala Complexsupporting
“…1c). This result is consistent with previous reports on Mt intercalated with ALA (Ma et al, 2003;Reichert et al, 1998). As described by Reichert et al, protonated ALA entered the interlayer space of Na-Mt by cation exchange.…”
Section: Characterization Of Mt and Mt-ala Complexsupporting
“…2B a nanocomposite prepared by method d (NCLSBd-2) can be seen. The dark entities can be assigned unambiguously to exfoliated silicate layers [24]. Both swelling methods lead to nanocomposites with a well-de®ned morphology, i.e.…”
Section: Resultsmentioning
confidence: 94%
“…The ultimate goal to achieve materials with both high stiness and high toughness can only be realized in exceptional cases [8± 11]. In previous work we demonstrated for polyamide-12 (PA-12) nanocomposites that it is possible to obtain materials with increased stiness (Young's modulus) without sacri®cing the high notched impact toughness [24].…”
“…T HE LAST 10 years has seen a flurry of research activity on the subject of nanoscale reinforcements for thermoplastic polymers [1][2][3][4][5]. Most reinforcements have a platelet-like structure whose characteristic thickness is in the nanoscale.…”
Nanocomposites present interesting mechanical properties owing to the high surface-area-to-volume ratio of the dispersed reinforcement. The vibration weldability of these new composites has not yet been reported in the literature. This research examines the effect of the vibration-welding parameters of weld pressure and target meltdown on the strength of butt welds made from two polypropylene-based nanocomposites. The nanocomposites were made by melt-compounding two levels of organoclay with polypropylene. The results of unreinforced polypropylene are shown for reference. All welded assemblies were assessed by tensile testing. The results show that 3-6% of organoclay reinforcement causes a significant decrease in weld strength.
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