An Optimized Two‐Step Nitrogen‐Based Plasma Treatment Procedure under Atmospheric‐Pressure Condition and its Surface Amination Mechanism. Issue 7 (9th February 2015)

• Record Type: Journal Article
• Authors: Yang, Yi‐Wei; Wu, Jane‐Yii; Liu, Chih‐Tung; Liao, Guo‐Chun; Cheng, Kuang‐Yao; Chiang, Ming‐Hung; Wu, Jong‐Shinn
• Is Part Of: Plasma processes and polymers. Volume 12:Issue 7(2015:Jul.)
• Page Start: 678
• Page End: 690
• Publication Date: 2015-02-09
• Subjects: Plasma polymerization -- Periodicals; Plasma-enhanced chemical vapor deposition -- Periodicals; Plasma chemistry -- Periodicals
• DOI: 10.1002/ppap.201400095
• Languages: English
• ISSNs: 1612-8850

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="ppap201400095-sec-0001" sec-type="section"> <p>Atmospheric pressure nitrogen‐based dielectric barrier discharge (DBD) jet with two‐step plasma treatment procedure has been verified to be very effective in facilitating nitrogen‐containing group incorporation on Polylactide (PLA) surface. It includes: 1) pretreatment plasma treatment by a nitrogen discharge with a trace amount of oxygen, and 2) ammonia plasma treatment by a nitrogen discharge with a small amount of ammonia. In this study, the optimized operation condition of two‐step plasma procedure is investigated under different concentrations of added gases (0–1% oxygen; 0–10% ammonia). XPS analysis shows that ∼0.19 of N/C ratio can be achieved by means of the optimized two‐step plasma procedures. Furthermore, a surface amination mechanism is proposed based on the observations of Optical Emission Spectra (OES), Atomic Force Microscope (AFM), and X‐ray Photoelectron Spectra (XPS) analyses.<inline-graphic xlink:href="ark:/27927/pgj22dc93h4" content-type="ppap201400095-gra-0001" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </sec> </abstract>