Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels

Polyisocyanurate (PIR) foams were examined regarding their local chemical composition using ATR-IR spectroscopy. As a special parameter the PIR: Amide III intensity ratio is to be mentioned, which represents the quantity of the formed PIR groups. Based on the local PIR: Amide III intensity ratio, th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	P. Gahlen, S. Fröbel, A. Karbach, D. Gabriel, M. Stommel
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Experimental micromechanics Nanoindentation Atomic force microscopy Polyisocyanurate foam Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/fbd575094b25410f9ec790c3564e9f0f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fbd575094b25410f9ec790c3564e9f0f
record_format	dspace
spelling	oai:doaj.org-article:fbd575094b25410f9ec790c3564e9f0f2021-11-24T04:25:13ZExperimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels0142-941810.1016/j.polymertesting.2020.106965https://doaj.org/article/fbd575094b25410f9ec790c3564e9f0f2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321942https://doaj.org/toc/0142-9418Polyisocyanurate (PIR) foams were examined regarding their local chemical composition using ATR-IR spectroscopy. As a special parameter the PIR: Amide III intensity ratio is to be mentioned, which represents the quantity of the formed PIR groups. Based on the local PIR: Amide III intensity ratio, the mechanical properties (Young's modulus) of the foam base material were analyzed at defined positions by AFM and Nanoindentation. It turned out that the AFM method is only suitable for qualitative analysis, because the values differ strongly from macroscopic measurements. For the measurements using nanoindentation, a new embedding method was developed, which achieves significantly more realistic and reproducible results compared to the embedding method used in the literature and shows a very good agreement with the macroscopic values. In general, it has been shown that a higher PIR: Amide III intensity ratio tends to lead to a higher Young's modulus. Nevertheless, there are other, currently unknown characteristic values which also influence the Young's modulus.P. GahlenS. FröbelA. KarbachD. GabrielM. StommelElsevierarticleExperimental micromechanicsNanoindentationAtomic force microscopyPolyisocyanurate foamPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106965- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Experimental micromechanics Nanoindentation Atomic force microscopy Polyisocyanurate foam Polymers and polymer manufacture TP1080-1185
spellingShingle	Experimental micromechanics Nanoindentation Atomic force microscopy Polyisocyanurate foam Polymers and polymer manufacture TP1080-1185 P. Gahlen S. Fröbel A. Karbach D. Gabriel M. Stommel Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
description	Polyisocyanurate (PIR) foams were examined regarding their local chemical composition using ATR-IR spectroscopy. As a special parameter the PIR: Amide III intensity ratio is to be mentioned, which represents the quantity of the formed PIR groups. Based on the local PIR: Amide III intensity ratio, the mechanical properties (Young's modulus) of the foam base material were analyzed at defined positions by AFM and Nanoindentation. It turned out that the AFM method is only suitable for qualitative analysis, because the values differ strongly from macroscopic measurements. For the measurements using nanoindentation, a new embedding method was developed, which achieves significantly more realistic and reproducible results compared to the embedding method used in the literature and shows a very good agreement with the macroscopic values. In general, it has been shown that a higher PIR: Amide III intensity ratio tends to lead to a higher Young's modulus. Nevertheless, there are other, currently unknown characteristic values which also influence the Young's modulus.
format	article
author	P. Gahlen S. Fröbel A. Karbach D. Gabriel M. Stommel
author_facet	P. Gahlen S. Fröbel A. Karbach D. Gabriel M. Stommel
author_sort	P. Gahlen
title	Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
title_short	Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
title_full	Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
title_fullStr	Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
title_full_unstemmed	Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
title_sort	experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/fbd575094b25410f9ec790c3564e9f0f
work_keys_str_mv	AT pgahlen experimentalmultiscaleapproachtodeterminethelocalmechanicalpropertiesoffoambasematerialinpolyisocyanuratemetalpanels AT sfrobel experimentalmultiscaleapproachtodeterminethelocalmechanicalpropertiesoffoambasematerialinpolyisocyanuratemetalpanels AT akarbach experimentalmultiscaleapproachtodeterminethelocalmechanicalpropertiesoffoambasematerialinpolyisocyanuratemetalpanels AT dgabriel experimentalmultiscaleapproachtodeterminethelocalmechanicalpropertiesoffoambasematerialinpolyisocyanuratemetalpanels AT mstommel experimentalmultiscaleapproachtodeterminethelocalmechanicalpropertiesoffoambasematerialinpolyisocyanuratemetalpanels
_version_	1718416013690667008

Experimental multi-scale approach to determine the local mechanical properties of foam base material in polyisocyanurate metal panels

Ejemplares similares