Influence of porosity and microstructure on compression behavior of methacrylate polymers in flow-through applications

Poljanec, Nikola (avtor), Mravljak, Rok (avtor), Podgornik, Aleš (avtor)

Mechanical properties of a material play a pivotal role in its performance when such porous material is used in a flow-through mode. This study delves into the effect of porosity and microstructure on the compressibility of methacrylate polymer, focusing on two distinct microstructures: cauliflower and high internal phase emulsion. Samples with various porosities yet identical chemical composition were prepared and their Young’s modulus was measured. The effect of porosity on Young’s modulus was described by an exponential law model with the cauliflower microstructure exhibiting an exponent of 3.61, while the high internal phase emulsion of only 1.86. A mathematical analysis of the compression caused by a liquid flow unveiled significant disparities in the porosity threshold where minimal compression is observed, being around 0.45 for the cauliflower while there is monotone decrease in compression with porosity increase for the high internal phase emulsion microstructure. Evaluating exponent integer values between 1 and 5 over entire porosity range reveals that the porosity where the minimal compression occurs increases with a decrease in exponent value, being approximately 0.33 for n = 5, 0.4 for n = 4, 0.55 for n = 3, 0.65 for n = 2 while no minimum occurs for n = 1. These findings indicate that lower exponent value results in lower compression under identical experimental conditions.

• Jezik: Angleški jezik
• Ključne besede: compression, mechanical properties, microstructure, porosity, Young's modulus
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: 11 str.
• Številčenje: Vol. 47, iss. 9/10, art. 2300767
• PID: 20.500.12556/RUL-158295
• UDK: 620.1
• ISSN pri članku: 1615-9314
• DOI: 10.1002/jssc.202300767
• COBISS.SI-ID: 197425411
• Datum objave v RUL: 03.06.2024

Gradivo je del revije

• Naslov: Journal of separation science
• Skrajšan naslov: J. sep. sci.
• Založnik: Wiley
• ISSN: 1615-9314
• COBISS.SI-ID: 2871834

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kompresija, mehanske lastnosti, mikrostruktura, poroznost, Youngov modul

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J2-50048
• Naslov: Priprava kristaliziranih zvitih in dvojčičnih morfologij iz superkritičnih fluidov za katalizo in separacije

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P1-0153
• Naslov: Raziskave in razvoj analiznih metod in postopkov