期刊
PLASMA
卷 5, 期 1, 页码 44-59出版社
MDPI
DOI: 10.3390/plasma5010004
关键词
atmospheric pressure plasma jet; plasma co-polymerization; limonene; HMDSO; PECVD
In this study, plasma co-polymers were deposited using an atmospheric pressure plasma jet with a precursor mixture containing hexamethyldisiloxane and limonene, resulting in a coating with siloxane, carbonyl, and nitrogen functional groups. The flow rate of limonene was found to be a key parameter affecting the formation and structure of the co-polymers, with a higher flow rate leading to a higher proportion of carbon bound to silicon.
Plasma co-polymers (co-p) were deposited with an atmospheric pressure plasma jet (APPJ) using a precursor mixture containing hexamethyldisiloxane (HMDSO) and limonene. A coating with fragments from both precursors and with siloxane, carbonyl and nitrogen functional groups was deposited. The flow rate of limonene was found to be an important parameter for plasma co-polymerization to tune the formation and structure of the functional groups. The FTIR and XPS analysis indicates that with increasing flow rate of limonene a higher proportion of carbon is bound to silicon. This is related to a stronger incorporation of fragments from limonene into the siloxane network and a weaker fragmentation of HMDSO. The formation mechanism of the nitroxide and carboxyl groups can be mainly differentiated into in-plasma and post-plasma reactions, respectively.
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