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New bleeding model of additives in a polypropylene film under atmospheric pressure II
Authors
Endoh Masahiko
Kanai Toshitaka
+7 more
Kimura Tokutaro
Kohno Takayuki
Nishioka Toshikatsu
Ohnishi Satoru
Tamura Satoshi
Tanaka Yoshikatsu
Wakabayashi Makoto
Publication date
15 October 2007
Publisher
'Wiley'
Doi
Cite
Abstract
金沢大学大学院自然科学研究科出光興産㈱ 先進技術研究所 解析技術センター 第二解析技術室Many additives are commercially used to add more favorable qualities to films. The bleeding process by which the additive in a film comes to the surface is considered. A new bleeding model of additives in a polypropylene film under atmospheric pressure was investigated. Solubility and diffusion are found to be important for explaining this bleeding process. It was found that the experimental results were explained more precisely by assuming a twostep transport process between the crystalline regions and the amorphous ones. The solubilities and diffusion coefficients of UV-stabilizers such as 2-(2H-benzotriazol-2-yl)-4(l,l,3,3-tetramethylbutyl)phenol and 2-(2H-benzotriazol-2yl)-4-methylphenol were determined at 4O°C. The difference between the saturation solubilities and the diffusion coefficients of UV-stabilizers was discussed by comparing with the results of molecular dynamics (MD) simulation. © 2007 Wiley Periodicals, Inc
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Last time updated on 06/05/2019