Study on the Inuence of Calendaring Process on Thermal Resistance of Polypropylene Nonwoven Fabric Structure

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• Autor: Dragana Kopitar
• Autor: Zenun Skenderi
• Autor: Budimir Mijović
• Autorova ustanova: Sveučilište u Zagrebu; Tekstilno-tehnološki fakultet; (Zavod za projektiranje i menadžment tekstila)
• Autorova ustanova: Sveučilište u Zagrebu; Tekstilno-tehnološki fakultet; (Zavod za temeljne prirodne i tehničke znanosti)
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Tekstilna tehnologija; Tekstilno-mehaničko inženjerstvo

Sažetak (engleski)

Thepurposeofthispaperistoinvestigatetheinuenceofcalenderingprocessonpolypropylenenonwoven structureandthermalresistance. Thestudywasfocusedontheinuenceofmassperunitarea, thickness, density, porosity, characteristic opening size and additional thermal bonding by calendering. Thermal resistance of polypropylene nonwoven fabric manufactured using the mechanical carding process and bonding using the needling process, where a part of the samples was additionally bonded by the thermal calendering process, were investigated. The nonwoven fabrics were tested for thermal resistance on the guarded hot plate. Statistical analyses were performed to examine the signicance between the observed parameters. Correlation matrix analyses were used to reveal relationship behaviour among the variables. A change in structure of the calendered samples caused a considerably lower thermal resistance i.e. better thermal conductivity. A change of the average value of thermal resistance after calendering related to non-calendered fabric mass between 150 and 500 g/m2 ranged from 53.9 to 41.0%. With increasing nonwoven fabric mass, the dierence between thermal resistances of needled and needled as well as additionally bonded by calendering the nonwoven fabric was reduced.

• Ključne riječi (engleski): Polypropylene; Needled Nonwoven; Calendaring; Characteristic Opening Size; Guarded Hotplate; Thermal Resistanc
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Journal of Fiber Bioengineering and Informatics
• Brojčani podaci: vol. 7, br. 1, str. 1-11
• p-ISSN: 1940-8676
• DOI: https://doi.org/10.3993/jfbi03201401
• URN:NBN: urn:nbn:hr:201:162575
• Datum objave publikacije: 2014
• URL dokumenta: http://www.global-sci.org/jfbi/issues/v7n1/pdf/JFBI2014-01-01.pdf
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2017-02-09 11:52:48