Tomographic Reconstruction and Morphological Analysis of Rigid Polyurethane Foams

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43902728" target="_blank" >RIV/60461373:22340/16:43902728 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/masy.201500113" target="_blank" >http://dx.doi.org/10.1002/masy.201500113</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/masy.201500113" target="_blank" >10.1002/masy.201500113</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tomographic Reconstruction and Morphological Analysis of Rigid Polyurethane Foams

Popis výsledku v původním jazyce

Application properties of polymer foams are closely related to their morphology. Experimental characterization and subsequent morphological analysis thus represent essential tools for their investigation. Spatially three-dimensional porous structures of four closed-cell polyurethane foams are reconstructed using the X-ray micro-tomography (?CT) imaging with the spatial resolution of 2 ?m. Challenges associated with insufficient ?CT resolution (e.g., reconstruction of thin walls of polymer) are addressed and the methodology allowing their overcoming is presented. Foam anisotropy is characterized (i) using the lineal-path function as a common statistical descriptor of morphology, and (ii) by the spatial orientation vector whose evaluation is newly developed in this paper. Foam porosity and cell size distribution evaluated both from the 2D cross-section slices and from the complete 3D data are compared. Additionally, the porosity is compared with the experimentally measured values. It is demonstrated that 3D volumetric data are advantageous for a proper morphological characterization of the foam.

Název v anglickém jazyce

Tomographic Reconstruction and Morphological Analysis of Rigid Polyurethane Foams

Popis výsledku anglicky

Application properties of polymer foams are closely related to their morphology. Experimental characterization and subsequent morphological analysis thus represent essential tools for their investigation. Spatially three-dimensional porous structures of four closed-cell polyurethane foams are reconstructed using the X-ray micro-tomography (?CT) imaging with the spatial resolution of 2 ?m. Challenges associated with insufficient ?CT resolution (e.g., reconstruction of thin walls of polymer) are addressed and the methodology allowing their overcoming is presented. Foam anisotropy is characterized (i) using the lineal-path function as a common statistical descriptor of morphology, and (ii) by the spatial orientation vector whose evaluation is newly developed in this paper. Foam porosity and cell size distribution evaluated both from the 2D cross-section slices and from the complete 3D data are compared. Additionally, the porosity is compared with the experimentally measured values. It is demonstrated that 3D volumetric data are advantageous for a proper morphological characterization of the foam.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Macromolecular Symposia

ISSN

1022-1360

e-ISSN

—

Svazek periodika

360

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

87-95

Kód UT WoS článku

000377290600010

EID výsledku v databázi Scopus

—