研究目的
Investigating the effects of aging on chlorinated plasma polymers, specifically changes in morphological, structural, and compositional properties over two years.
研究成果
Aging chlorinated amorphous plasma films under ambient conditions for two years leads to oxidation, increased densities of OH, C-O, C=O, and C=C bonds, and dehydrochlorination. Film thickness decreases while surface roughness and contact angle increase. Chlorinated films are more stable, resistant to delamination, and exhibit a more uniform surface morphology compared to unchlorinated films.
研究不足
The study is limited to films aged under ambient conditions for two years, and the effects of different aging conditions or longer aging periods are not explored. The unchlorinated film's condition prevented reliable measurement of some properties after aging.
1：Experimental Design and Method Selection:
Films were produced by PECVD of propanol-chloroform-argon mixtures at constant total pressure, with partial pressures of chloroform varying from 0 to 40%.
2：0%. Sample Selection and Data Sources:
2. Sample Selection and Data Sources: Films were deposited onto smooth glass plates and characterized after two years of aging under ambient conditions.
3：List of Experimental Equipment and Materials:
Veeco Dektak 150 profilometer for thickness and roughness measurements, Ramé-Hart 100 goniometer for contact angle measurements, Jasco FTIR-410 spectrophotometer for infrared spectroscopy, Jeol JSM-6010LA scanning electron microscope for surface imaging, and EDS for chemical composition analysis.
4：Experimental Procedures and Operational Workflow:
Thickness and roughness were measured using profilometry, contact angles were measured with a goniometer, chemical structure was examined with infrared spectroscopy, and surface features were examined with SEM.
5：Data Analysis Methods:
Data were analyzed to compare as-deposited and aged films, focusing on changes in thickness, roughness, contact angle, and chemical composition.
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