کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1658746 | 1008359 | 2011 | 10 صفحه PDF | دانلود رایگان |
Parallel plates dielectric barrier discharge (DBD) at atmospheric pressure has been used to investigate the introduction of amino groups on a polypropylene substrate. For this purpose the plasma polymerization of aminopropyl triethoxysilane, trimethoxysilylpropyl ethylenediamine, allylamine, butylamine, ethylenediamine, and nitrogen/ammonia has been systematically studied and compared. The coatings have been characterized through wettability measurements, interferometry, labeling coupled with X-ray photoelectron spectroscopy, and IR spectroscopy. Significant hydrophilicity enhancement of the polypropylene substrate has been observed for butylamine, ethylenediamine or allylamine, with a surface energy up to 76 mN.m−1. Higher reactivity in the plasma is observed for trimethoxysilylpropyl ethylenediamine which also gives rise to the maximum final amino group concentration of about 6 at.%. According to the choice of the precursor, surface properties can be tuned in terms of polarity, coating composition, and coating thickness.
► Dielectric barrier discharge at atmospheric pressure on polypropylene.
► Study and comparison of the plasma polymerization of amino containing precursors.
► Surface energy up to 76 mN.m−1 is obtained.
► Highest concentration in CNH2 for trimethoxysilylpropyl ethylenediamine (6 at.%).
► Optimization of coating functionality possible through appropriate choice of chemical precursors.
Journal: Surface and Coatings Technology - Volume 206, Issue 6, 15 December 2011, Pages 1439–1448