Online citations, reference lists, and bibliographies.

Polymeric Foams From High‐performance Thermoplastics

Luigi Sorrentino, Marco Aurilia, Salvatore Iannace
Published 2011 · Materials Science
Cite This
Download PDF
Analyze on Scholarcy
The aim of this work was to investigate the foaming process of high-performance thermoplastic polymers such as polyethersulfone (PES), polyphenylsulfone (PPSU), polyetherimide (PEI), and poly(ethylene-2,6-naphthalate) (PEN) expanded by using supercritical carbon dioxide as a blowing agent. All polymers were characterized by differential scanning calorimetry (DSC) and rheological analysis to roughly identify the foaming conditions. Batch and solid-state foaming methods were employed. In the first case, cell nucleation was promoted by inducing a fast pressure drop rate in a pressurized vessel. In the solid-state process, foaming was promoted by increasing the temperature of gas-saturated samples in an oil bath. The effects of foaming methods and process parameters on cellular morphology were analyzed. All polymers were successfully foamed by using the solid-state technique, showing relative densities ranging from 0.13 to 0.44 for PEN and from 0.27 to 0.57 for PES, PPSU, and PEI. The morphology was microcellular in all cases, and PES exhibited nanocellular cells after some processing conditions. The batch-foaming process was less effective to prepare foams than the solid-state one. In fact, higher relative densities and reduced temperature windows for foaming were evidenced for amorphous polymers, whereas PEN crystallized during the heating step and foams with poor morphology and high relative densities were obtained. © 2011 Wiley Periodicals, Inc. Adv Polym Techn 30: 234–243, 2011; View this article online at DOI 10.1002/adv.20219

This paper is referenced by
Strategy to control CO2 diffusion in polystyrene microcellular foaming via CO2-philic additives
Wei Qiang (2019)
Influence of repetitions of the high-pressure hydrogen gas exposure on the internal damage quantity of high-density polyethylene evaluated by transmitted light digital image
Hiroaki Ono (2019)
Solvent‐Free Generation of Foamed Microcapillary Films with a Dual Network of Interconnected Pores and Internal Channels
Jianxiang Zhao (2020)
TPU/PLA blend foams: Enhanced foamability, structural stability, and implications for shape memory foams
Mohammad Faisal Ahmed (2019)
Development of Polylactide (PLA) and PLA Nanocomposite Foams in Injection Molding for Automotive Applications
Naqi Najafi Chaloupli (2015)
Effect of nanoparticles orientation on morphology of polymeric nanocomposite foams: preparation of foamed nanocomposite fibers by supercritical carbon dioxide
Guojun Hu (2020)
Morphological evaluation of ultralow density microcellular foamed composites developed through CO2-induced solid-state batch foaming technique utilizing water as co-blowing agent:
Rupesh Dugad (2019)
Nanoporous structure of the cell walls of polycarbonate foams
Pengjian Gong (2013)
Extrusion foaming behavior of wood plastic composites based on PP/POE blends
Suwei Wang (2019)
Preparation and characterization of cyanate/epoxy foam
Chunchun Fan (2016)
Recent advancements in manufacturing technologies of microcellular polymers: a review
Rupesh Dugad (2020)
High-Performance Polymer Foams by Thermally Induced Phase Separation.
Dmitrii Sergeevich Rusakov (2020)
Fabrication of three-dimensional polyetherimide bead foams via supercritical CO2/ethanol co-foaming technology
Dong Shi Feng (2019)
Luca Sorrentino (2013)
Mechanical behavior of solid and foamed polyester/expanded graphite nanocomposites
Luigi Sorrentino (2012)
Thermoplastic Foams: Processing, Manufacturing, and Characterization
Mihrigul Altan (2018)
The influence of dynamic rheological properties on carbon fiber-reinforced polyetherimide for large-scale extrusion-based additive manufacturing
Christine Ajinjeru (2018)
Semantic Scholar Logo Some data provided by SemanticScholar