Processing and microstructure of PCL/clay nanocomposites
By L. Ludueña, V. Alvarez, A. Vázquez. 2007
175 citations recorded by the source corpus.
Abstract The morphology and mechanical properties of polycaprolactone/clay nanocomposite films prepared by two techniques (casting: exfoliation-adsorption; intensive mixing: melt-intercalation) were studied. Casting, which is a laboratory scale technique, was selected because it was supposed that the exfoliation of the layered silicate into single layers would be easier since the solvent acts as an exfoliation agent. The other selected technique was chosen because it can be used in the industry. X-ray diffractograms revealed an intercalated–exfoliated mixed structure for both techniques. For casting, the morphology and mechanical properties are influenced by the used solvent and the preparation conditions being the first one the most critical parameter. Otherwise, in the case of intensive mixing, a higher clay dispersion degree was produced by shear forces and the resultant mechanical properties were superior to those obtained by casting. In both cases, the highest modulus was achieved for 5 wt.% of C30B. Finally, an effective filler-parameters model was used to compare the relative dispersion of clay within the nanocomposites for both processes from the experimental modulus values.
Subfields: Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/a4cebc0b3f4a3f232dd7ae5a281526aeed0b3307
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In Polymers and Plastics
Citations in the corpus
- Environmental friendly food nano-packaging (2017, background): “The exfoliated nanocomposites involve extensive polymer penetration, with the clay layers delaminated and randomly dispersed in the polymer matrix (Luduena et al. 2007).”
- Nanoscience and nanotechnologies in food industries: opportunities and research trends (2014, background): “…with the typical tactoid structure of microcomposites (conventional compos- ites), in which the polymer and the clay tactoids remain immiscible (Ludueña et al. 2007; Alexandre et al. 2009), the interaction between layered silicates and polymers may produce two types of nanoscale composites…”
- Natural nanoclays: applications and future trends – a chilean perspective (2009, background): “Since these biopolymers are also renewable and recycleable, the products have been referred to as ‘green’ nanocomposites (Lepoittevin et al., 2002; Chabba & Netravali, 2004, 2005a,b; Lodha & Netravali, 2005; Huang & Netravali, 2007; Dean et al., 2007; Ludueña et al., 2007).”
- Structure and properties of nanocomposite films based on sodium caseinate and nanocellulose fibers (2011, background): “Moreover, macroscopic reinforcing fillers usually contain defects, which become less important as the particle size become smaller (Ludueña et al., 2007).”
- Recent progress in biodegradable polymers and nanocomposite-based packaging materials for sustainable environment (2018, background): “The optimum concentration of nanoclay and a plasticizer to form a film-forming starch gel greatly improves the mechanical properties.([63]) Cellulose is a strong and a natural polymer.”
- Strategies to Extend Bread and GF Bread Shelf-Life: From Sourdough to Antimicrobial Active Packaging and Nanotechnology (2018, background): “The former have a multilayered structure with alternating polymer/filler layers lying apart by few nanometers, while in the latter the filler layers are delaminated and randomly dispersed in the polymer matrix [76].”
- Nanocomposites for food packaging applications (2009, methodology): “The exfoliated nanocomposites involve extensive polymer penetration, with the clay layers delaminated and randomly dispersed in the polymer matrix (Ludueña et al., 2007).”