Permeabilities and water vapor transmission rates for commercial polymer films

Tock, Richard W.

doi:10.1002/adv.1983.060030304

Cited by 40 publications

(26 citation statements)

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“…Water vapor transmission rate is an important property for many film packaging applications influencing shelf life and product stability. Tock (1983) reviewed some of the permeability and water vapor transmission rate properties of commercial polymeric films and provided an overview of how structural changes, such as crystallinity, and the presence of plasticizers and lamination can influence the barrier properties of polymer films. Miranda, Garnica, Lara-Sagahon, and Cárdenas (2004) Aydinli and Tutas (2000) determined WVP of (6.3-11.6) × 10 −5 [g mm/(m 2 h Pa)] for polyethylene glycol-plasticized locust bean gum as compared to (6.2-11.6) × 10 −5 [g mm/(m 2 h Pa)] reported by Mikkonen, Heikkilä, Helén, Hyvönen, and Tenkanen (2010).…”

Section: Introductionmentioning

confidence: 99%

Moisture barrier properties of xylan composite films

Saxena

Elder

Ragauskas

2011

Carbohydrate Polymers

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Section: Introductionmentioning

confidence: 99%

Moisture barrier properties of xylan composite films

Saxena

Elder

Ragauskas

2011

Carbohydrate Polymers

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“…Note that the diffusion characteristics of foil layered materials are directly influenced by temperature and air vapor concentration (Pons et al, 2014). Among the 3 types of sampling bags in this experiment, the MPE bags have the lowest WVTR reported (0.09 g m −2 d −1 ), followed by the 30 LDPE bags between 0.39-0.59 g m −2 d −1 and PVF with the highest value of 0.83 g m −2 d −1 (Keller and Kouzes, 2017;Tock, 1983…”

Section: Discussionmentioning

confidence: 79%

Technical note: comparison of water vapor sampling techniques for stable isotope analysis

Jiménez-Rodríguez

Coenders-Gerrits

Bogaard

et al. 2019

Preprint

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Water vapor samples are key elements to describe the evaporation process thanks to the stable isotope signatures of δ 2 H and δ 18 O. However, its sampling is a difficult task that can introduce errors due to isotopic fractionation. This study investigates the consistency of different sampling techniques for atmospheric water vapor. The isotope signature of a parcel of air was determined with a cavity output spectroscopy device during a period of 3 hours (benchmark). This parcel of air was sampled simultaneously with 3 types of sampling bags made of different materials (metalized polyethylene -MPE-, polyvinyl fluoride 5 -PVF-, low density polyethylene -LDPE-) and with 2 cryogenic baths running at two different pumping rates (3 L min −1 and 50 mL min −1 ). The tested water vapor sampling techniques differ in their ability to keep reliable measurements after sampling and are highly susceptible to procedural errors. MPE bags are the best option for measuring samples up to two weeks of storage after sampling. LDPE and PVF bags are only reliable if the measurement is performed on the same sampling day.

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“…Nilai b dan Me didapat dari kurva sorpsi isotermi air daun seledri. Roman dan Hensel (2010) (Tock 1983) b Pengujian dilakukan pada 23 °C dan RH 85% (Lamberti dan Escher 2007) dengan membuat regresi linier dari titik kadar air awal sampai titik kadar air kritis pada kurva model sorpsi isotermi air (Sugiyono et al 2010 (8) Umur simpan (t) ditentukan pada suhu penyimpanan 25 °C dan RH 60% (aktivitas air 0.6) menggunakan Persamaan (9) oleh Labuza (1982).…”

Section: Pendugaan Umur Simpanunclassified

Study on Drying and Shelf Life Prediction of Celery in Various of Flexible Material Packaging

Yulni¹,

Hasbullah²,

Nelwan³

2017

JTEP

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Jurnal Keteknikan Pertanian (JTEP) terakreditasi berdasarkan SK Dirjen Penguatan Riset dan Pengembangan Kementerian Ristek Dikti Nomor I/E/KPT/2015 tanggal 21 September 2015. Selain itu, JTEP juga telah terdaftar pada Crossref dan telah memiliki Digital Object Identifier (DOI) dan telah terindeks pada ISJD, IPI, Google Scholar dan DOAJ. Mulai edisi ini redaksi memandang perlu untuk meningkatkan nomor penerbitan dari dua menjadi tiga kali setahun yaitu bulan April, Agustus dan Desember berisi 12 naskah untuk setiap nomornya. Hal ini dimaksudkan untuk mengurangi masa tunggu dengan tidak menurunkan kualitas naskah yang dipublikasikan. Jurnal berkala ilmiah ini berkiprah dalam pengembangan ilmu keteknikan untuk pertanian tropika dan lingkungan hayati. Penulis makalah tidak dibatasi pada anggota PERTETA tetapi terbuka bagi masyarakat umum. Lingkup makalah, antara lain: teknik sumberdaya lahan dan air, alat dan mesin budidaya pertanian, lingkungan dan bangunan pertanian, energi alternatif dan elektrifikasi, ergonomika dan elektronika pertanian, teknik pengolahan pangan dan hasil pertanian, manajemen dan sistem informasi pertanian. Makalah dikelompokkan dalam invited paper yang menyajikan isu aktual nasional dan internasional, review perkembangan penelitian, atau penerapan ilmu dan teknologi, technical paper hasil penelitian, penerapan, atau diseminasi, serta research methodology berkaitan pengembangan modul, metode, prosedur, program aplikasi, dan lain sebagainya. Penulisan naskah harus mengikuti panduan penulisan seperti tercantum pada website dan naskah dikirim secara elektronik (online submission) melalui http://journal.ipb.ac.id/index.php/jtep.

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Permeabilities and water vapor transmission rates for commercial polymer films

Abstract: ABSTRACT

Cited by 40 publications

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Moisture barrier properties of xylan composite films

Moisture barrier properties of xylan composite films

Technical note: comparison of water vapor sampling techniques for stable isotope analysis

Study on Drying and Shelf Life Prediction of Celery in Various of Flexible Material Packaging

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