Composite oxygen-barrier coating on a polypropylene food container

Title
Composite oxygen-barrier coating on a polypropylene food container
Authors
김성진송은경조경식윤태경문명운이광렬
Keywords
Barrier coating; Food container; OTR; SiOx; HMDSO; Buckling delamination
Issue Date
2013-07
Publisher
Thin solid films
Citation
VOL 540, 112-117
Abstract
The composite oxygen-barrier coating of plasma polymerized-hexamethyldisiloxane (pp-HMDSO) and silicon oxide (SiOx) on polypropylene (PP) was performed to lower the oxygen transmission rate. A pp-HMDSO interlayer was employed to cover PP pores at a relatively high porosity and provide better a thermal and mechanical buffer between brittle SiOx and soft and porous PP. There is an optimum thickness for the pp-HMDSO and SiOx films due to competition between the accumulated strain energy by compression in the composite layers and the interfacial adhesion strength. By choosing the optimal thickness of the layers, the oxygen transmission rate was improved from 7.42 × 10− 4 for a pristine PP container to 2.6 × 10− 5 ㎤/㎡-day-Pa with 8 ± 2 nm pp-HMDSO and 24 ± 6 nm SiOx layers.
URI
http://pubs.kist.re.kr/handle/201004/45121
ISSN
00406090
Appears in Collections:
KIST Publication > Article
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