Gas permeabilities of polyurethane films for fresh produce packaging: Response of O2 permeability to temperature and relative humidity

Deniz Turan; Sven Sängerlaub; Cornelia Stramm; Gurbuz Gunes

doi:10.1016/j.polymertesting.2017.02.007

Gas permeabilities of polyurethane films for fresh produce packaging: Response of O₂ permeability to temperature and relative humidity

Deniz Turan, Sven Sängerlaub, Cornelia Stramm, Gurbuz Gunes^*

^*Bu çalışma için yazışmadan sorumlu yazar

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Araştırma sonucu: ???type-name??? › Makale › bilirkişi

26 Atıf (Scopus)

Özet

Thermoplastic shape memory polyurethane (SMPU) polymers were synthesized, cast to films, and their gas barrier properties were characterized. In addition, performance of an optical method was assessed by measuring oxygen permeability (P_O2) of the films. P_O2 of the SMPU film was at least two times higher than that of low density polyethylene (LDPE and increased at higher relative humidity. Permselectivity (P_CO2/P_O2) of the SMPU film was 15, which is approximately three times higher than for LDPE. The film absorbed circa 18% water vapor at 98% relative humidity. The optical method agreed very well (maximum 20% deviation) with a standard carrier gas method in P_O2 measurement. Overall our results show that SMPU is an attractive polymer for fresh produce packaging.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	237-244
Sayfa sayısı	8
Dergi	Polymer Testing
Hacim	59
DOI'lar	https://doi.org/10.1016/j.polymertesting.2017.02.007
Yayın durumu	Yayınlandı - 1 May 2017

Bibliyografik not

Publisher Copyright:
© 2017 Elsevier Ltd

Belgeye Erişim

10.1016/j.polymertesting.2017.02.007

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Gas permeabilities of polyurethane films for fresh produce packaging: Response of O2 permeability to temperature and relative humidity",

abstract = "Thermoplastic shape memory polyurethane (SMPU) polymers were synthesized, cast to films, and their gas barrier properties were characterized. In addition, performance of an optical method was assessed by measuring oxygen permeability (PO2) of the films. PO2 of the SMPU film was at least two times higher than that of low density polyethylene (LDPE and increased at higher relative humidity. Permselectivity (PCO2/PO2) of the SMPU film was 15, which is approximately three times higher than for LDPE. The film absorbed circa 18% water vapor at 98% relative humidity. The optical method agreed very well (maximum 20% deviation) with a standard carrier gas method in PO2 measurement. Overall our results show that SMPU is an attractive polymer for fresh produce packaging.",

keywords = "Fresh produce packaging, Gas permeability, Polyurethane, Temperature sensitive smart film",

author = "Deniz Turan and Sven S{\"a}ngerlaub and Cornelia Stramm and Gurbuz Gunes",

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T2 - Response of O2 permeability to temperature and relative humidity

AU - Turan, Deniz

AU - Sängerlaub, Sven

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AU - Gunes, Gurbuz

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Thermoplastic shape memory polyurethane (SMPU) polymers were synthesized, cast to films, and their gas barrier properties were characterized. In addition, performance of an optical method was assessed by measuring oxygen permeability (PO2) of the films. PO2 of the SMPU film was at least two times higher than that of low density polyethylene (LDPE and increased at higher relative humidity. Permselectivity (PCO2/PO2) of the SMPU film was 15, which is approximately three times higher than for LDPE. The film absorbed circa 18% water vapor at 98% relative humidity. The optical method agreed very well (maximum 20% deviation) with a standard carrier gas method in PO2 measurement. Overall our results show that SMPU is an attractive polymer for fresh produce packaging.

AB - Thermoplastic shape memory polyurethane (SMPU) polymers were synthesized, cast to films, and their gas barrier properties were characterized. In addition, performance of an optical method was assessed by measuring oxygen permeability (PO2) of the films. PO2 of the SMPU film was at least two times higher than that of low density polyethylene (LDPE and increased at higher relative humidity. Permselectivity (PCO2/PO2) of the SMPU film was 15, which is approximately three times higher than for LDPE. The film absorbed circa 18% water vapor at 98% relative humidity. The optical method agreed very well (maximum 20% deviation) with a standard carrier gas method in PO2 measurement. Overall our results show that SMPU is an attractive polymer for fresh produce packaging.

KW - Fresh produce packaging

KW - Gas permeability

KW - Polyurethane

KW - Temperature sensitive smart film

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