𝔖 Bobbio Scriptorium
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Hydrocarbon barrier performance of plasma-surface-modified polyethylene

✍ Scribed by Y. Lin; H. Yasuda

Book ID
102656190
Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
881 KB
Volume
60
Category
Article
ISSN
0021-8995

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✦ Synopsis

Plasma modifications were applied on the inner surfaces of high-density polyethylene bottles. The methods applied include Ar gas plasma treatment, plasma polymerization with tetrafluoroethylene (TFE), trimethylsilane (TMS) + O2 (1 : 4), CH4, and CzHz monomers, plasmainduced acrylic acid grafting polymerization, and C,H, plasma polymerization plus acrylic acid plasma polymerization. Solvent weight-loss data are reported primarily for the nhexane/HDPE bottle system. The best permeation reduction factor of 0.03 was obtained with CZH2 plasma polymerization a t a high energy level followed by acrylic acid plasma polymerization a t a low energy level. CzHz plasma polymerization a t an energy level of 10" J/kg and C,H, plasma polymerization followed by acrylic acid grafting polymerization offer a similar permeation reduction factor of 0.07. A combination of improved surface polarity and tightness of the surface is responsible for remarkable reductions in permeation rates.

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