The effect of nano-sized filler particles on the crystalline-amorphous interphase and thermal properties in polyester nanocomposites

Miltner, Hans; Watzeels, Nick; Gotzen, Nicolaas-Alexander; Goffin, Anne‐Lise; Duquesne, Emmanuël; Benali, Samira; Ruelle, Benoît; Peeterbroeck, Sophie; Dubois, Philippe; Goderis, Bart; Assche, Guy Van; Rahier, Hubert; Mele, Bruno Van

doi:10.1016/j.polymer.2012.01.047

Cited by 28 publications

(30 citation statements)

References 66 publications

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“…It was recently reported that the magnitude of the $C_{{\rm p}}^{{\rm excess}} $ can be associated with the degree of nanoclay dispersion, as illustrated for poly(amide)‐6,35, 36 poly(ethylene ‐co‐ vinyl acetate)37 and PCL nanocomposites 9, 10, 38. For PCL nanocomposites, a higher (final) $C_{{\rm p}}^{{\rm excess}} $ value was found to be indicative of a better nanoclay dispersion 9, 10.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Extrusion Parameters for Preparing PCL‐Layered Silicate Nanocomposites Supported by Modeling of Twin‐Screw Extrusion

Watzeels

Durme

Miltner

et al. 2012

Macro Materials & Eng

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PCL‐based nanoclay (layered silicate) nanocomposites are prepared using a small scale intermeshing co‐rotating twin‐screw extruder. Improving the level of nanoclay dispersion in PCL nanocomposites is obtained by changing the extrusion parameters. Increasing the screw speed and decreasing the throughput leads to an improved dispersion quality, as observed from the improved mechanical properties of the nanocomposites as well as from their clearly affected rheological and crystallization behavior. Furthermore, a commercially available software that simulates the twin‐screw extrusion process (LUDOVIC) is used to asses the processing parameters applied for making the nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Optimization of Extrusion Parameters for Preparing PCL‐Layered Silicate Nanocomposites Supported by Modeling of Twin‐Screw Extrusion

Watzeels

Durme

Miltner

et al. 2012

Macro Materials & Eng

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“…Therefore, their mechanical performance is critically influenced by the crystalline phase type and content . It is well understood that crystallization of modifying semicrystalline polymers is affected by both epoxy component and nanofiller . In spite of that, there are practically no studies revealing an effect of simultaneous presence of both the above mentioned components on crystallization behavior of the modifying polymer.…”

Section: Introductionmentioning

confidence: 99%

Epoxy/poly(ɛ‐caprolactone) nanocomposites: Effect of transformations of structure on crystallization

Kratochvíl

Rotrekl

Kaprálková

et al. 2013

J of Applied Polymer Sci

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The influence of morphology of the epoxy/poly(E-caprolactone) (PCL) system and corresponding nanocomposites with organophilized layered silicate on PCL crystallization was studied by differential scanning calorimetry, scanning, and transmission electron microscopy. The results obtained indicate a significant affecting of nonisothermal PCL crystallization by phase morphology brought about by the reaction-induced phase separation (RIPS) influenced either by various nanoclay contents or the epoxy/PCL ratio. Dispersed morphology of PCL matrix with epoxy globules induces crystallization at higher temperatures. The inverse dispersed morphology of epoxy matrix with PCL inclusions causes crystallization at lower temperature. The co-continuous morphology induces crystallization in both steps. Rate of the second crystallization step is substantially higher than that in the first step. No nucleation effect has been found in the nanocomposites with the added nanofiller. Multicomponent samples show retarded crystallization, i.e., lower crystallinities and lower overall crystallization rate compared with neat PCL. The results obtained suggest that it is primarily morphological/interfacial effects that play a decisive role in the crystallization behavior of PCL in the epoxy/PCL/clay system.

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“…In previous works, different POSS derivatives have been incorporated into PCL [20,21,22,23,24,25]. Goffin et al [20] studied the addition of aminopropylheptakis(isobutyl)-POSS and POSS- g -PCL nanohybrid by melt blending into PCL.…”

Section: Introductionmentioning

confidence: 99%

PCL/POSS Nanocomposites: Effect of POSS Derivative and Preparation Method on Morphology and Properties

et al. 2018

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The incorporation of polyhedral oligomeric silsesquioxanes (POSS) molecules as nanoparticles into polymers can provide improved physico-chemical properties. The enhancement depends on the extent of dispersion of the nanofiller, which is determined by the compatibility with the polymer that is by the POSS type, and the processing method. In this study, poly(ε-caprolactone)/POSS derivatives nanocomposites (PCL/POSS) were obtained via solution-casting and melt compounding. Two amino-derivatives containing different alkyl substituents, and ditelechelic POSS-containing hybrid PCL masterbatch were used as nanofillers. The effect of preparation method, POSS content and type on the morphology, thermal, mechanical, and surface properties of nanocomposites were studied. Morphological analysis evidenced the formation of POSS crystalline aggregates, self-assembled POSS molecules of submicrometer size dispersed in the polymer matrix. The best dispersion was achieved using the ditelechelic POSS-containing hybrid PCL masterbatch, and comparing the two amino-POSS derivatives, the one with longer alkyl chain of substituents exhibited better degree of dispersion independent of preparation method. DSC analysis showed the role of POSS derivatives as nucleating agents for PCL. The incorporation of POSS derivatives into the PCL matrix improved thermal stability. The preparation method, POSS type and content had influence on mechanical properties of nanocomposites. POSS nanoparticles enhanced the surface hydrophobicity of PCL.

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The effect of nano-sized filler particles on the crystalline-amorphous interphase and thermal properties in polyester nanocomposites

Cited by 28 publications

References 66 publications

Optimization of Extrusion Parameters for Preparing PCL‐Layered Silicate Nanocomposites Supported by Modeling of Twin‐Screw Extrusion

Optimization of Extrusion Parameters for Preparing PCL‐Layered Silicate Nanocomposites Supported by Modeling of Twin‐Screw Extrusion

Epoxy/poly(ɛ‐caprolactone) nanocomposites: Effect of transformations of structure on crystallization

PCL/POSS Nanocomposites: Effect of POSS Derivative and Preparation Method on Morphology and Properties

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