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Barrier and Structural Properties of Coated Trimethoxymethylsilane Layer on Coated Paper with Ethylene Vinyl Alcohol | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 9, Volume 34, Issue 2 - Serial Number 67, August 2019, Pages 255-262 PDF (640.6 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2019.126869.1557 | ||
| Authors | ||
| somayeh heydari1; Ahmad Reza Saraeyan* 2; Mohamadreza Dehghani firozabadi3; Alireza Shakeri4; babak shokri5 | ||
| 1Ph.D.,Student, Pulp and paper, Gorgan University of Agricultural sciences and Natural Resources, Department of Wood & Paper Engineering, Iran, Gorgan | ||
| 2IRAN-Gorgan- Gorgan university of Agricultural sciences and Natural Resources | ||
| 3Associate Prof., Pulp and paper, Gorgan University of Agricultural sciences and Natural Resources, Department of Wood & Paper Engineering, Gorgan, Iran | ||
| 4Associate Prof., Industrial Polymer, Department of Chemistry, Tehran University, Tehran, Iran | ||
| 5Prof., Laser-plasma Research Institute, Shahid Behshti University, Tehran, Iran | ||
| Abstract | ||
| Ethylene vinyl alcohol (EVOH) copolymer is of semi crystalline materials with excellent barrier properties to gases. Also, it has shown outstanding chemical resistance. Despite its low gas permeability, EVOH copolymer displays poor water and water vapor resistance. In this study, Trimethoxymethylsilane (as hydrophobic coating) was deposited by Plasma Enhanced Chemical Vapor (PECVD) method on the coated paper with Ethylene vinyl alcohol in order to improve the paper's barrier properties of moisture transmission. Coating by PECVD method was done in the certain conditions of time 6 min and pressure 300 m Torr. Different treatments were applied for power including 50, 70 and 90W.Then contact angle was measured in order to determined improvement of the paper's barrier properties of moisture transmission . The result showed that papers which were coated with Trimethoxymethylsilane had higher contact angle water 55.7% more than the control. The results revealed that the best condition was obtained by 50 W power. The structural and chemical properties of deposited layer were observed with Fourier Transform infrared spectroscopy- Attenuated Total Reflectance (FTIR-ATR) and Energy Dispersive X-ray Spectroscopy (EDS). The results confirmed bonding of silane on the surface EVOH polymer. | ||
| Keywords | ||
| Ethylene vinyl alcohol; Trimethoxymethylsilane; Plasma; Contact angle water | ||
| References | ||
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