Low pressure DC-plasma system for the modification of polymeric membrane surfaces

The main objectives of this work were to develop a lab-scale direct current (DC) glow discharges plasma system for modification of organic and inorganic membranes. Characteristics of plasma system were presented under the discharge of five gases (Ar, N2, air, O2, and CO2). A Langmuir double probe wa...

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Main Authors:	Chalad Yuenyao, Thawat Chittrakarn, Yutthana Tirawanichakul, Hideki Nakajima
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:	http://journalarticle.ukm.my/11068/ http://journalarticle.ukm.my/11068/ http://journalarticle.ukm.my/11068/1/13%20Chalad%20Yuenyao.pdf

id	ukm-11068
recordtype	eprints
spelling	ukm-110682017-12-12T04:59:22Z http://journalarticle.ukm.my/11068/ Low pressure DC-plasma system for the modification of polymeric membrane surfaces Chalad Yuenyao, Thawat Chittrakarn, Yutthana Tirawanichakul, Hideki Nakajima, The main objectives of this work were to develop a lab-scale direct current (DC) glow discharges plasma system for modification of organic and inorganic membranes. Characteristics of plasma system were presented under the discharge of five gases (Ar, N2, air, O2, and CO2). A Langmuir double probe was used for the evaluation of the electron temperature (Te) and electron density (ne) of plasmas. The current and voltage (I-V) characteristic curves were analyzed. Relationships between breakdown voltage (VB) of gases and products of gas pressure and inter-electrode gap (pd) were studied in form of Paschen curves. The results showed that Te of plasma in various gases was in the range of 4-13 eV, while the ne varied between 108 and 109 cm-3. The plasma generated at different gas pressure and applied voltage is in the normal and abnormal modes. Finally, the constructed DC-plasma system was utilized for modification of polymeric membrane surfaces. Treatment time, discharge power and type of gas were varied. The tailoring of membrane surfaces was analyzed through the water contact angle and percent-weight loss (PWL) measurements, DMTA, AFM, XPS and FTIR spectrum. It could be shown that DC-plasma from this system can be used to modify the surface of polymeric membranes. Penerbit Universiti Kebangsaan Malaysia 2017-05 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11068/1/13%20Chalad%20Yuenyao.pdf Chalad Yuenyao, and Thawat Chittrakarn, and Yutthana Tirawanichakul, and Hideki Nakajima, (2017) Low pressure DC-plasma system for the modification of polymeric membrane surfaces. Sains Malaysiana, 46 (5). pp. 783-793. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num5_2017/contentsVol46num5_2017.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The main objectives of this work were to develop a lab-scale direct current (DC) glow discharges plasma system for modification of organic and inorganic membranes. Characteristics of plasma system were presented under the discharge of five gases (Ar, N2, air, O2, and CO2). A Langmuir double probe was used for the evaluation of the electron temperature (Te) and electron density (ne) of plasmas. The current and voltage (I-V) characteristic curves were analyzed. Relationships between breakdown voltage (VB) of gases and products of gas pressure and inter-electrode gap (pd) were studied in form of Paschen curves. The results showed that Te of plasma in various gases was in the range of 4-13 eV, while the ne varied between 108 and 109 cm-3. The plasma generated at different gas pressure and applied voltage is in the normal and abnormal modes. Finally, the constructed DC-plasma system was utilized for modification of polymeric membrane surfaces. Treatment time, discharge power and type of gas were varied. The tailoring of membrane surfaces was analyzed through the water contact angle and percent-weight loss (PWL) measurements, DMTA, AFM, XPS and FTIR spectrum. It could be shown that DC-plasma from this system can be used to modify the surface of polymeric membranes.
format	Article
author	Chalad Yuenyao, Thawat Chittrakarn, Yutthana Tirawanichakul, Hideki Nakajima,
spellingShingle	Chalad Yuenyao, Thawat Chittrakarn, Yutthana Tirawanichakul, Hideki Nakajima, Low pressure DC-plasma system for the modification of polymeric membrane surfaces
author_facet	Chalad Yuenyao, Thawat Chittrakarn, Yutthana Tirawanichakul, Hideki Nakajima,
author_sort	Chalad Yuenyao,
title	Low pressure DC-plasma system for the modification of polymeric membrane surfaces
title_short	Low pressure DC-plasma system for the modification of polymeric membrane surfaces
title_full	Low pressure DC-plasma system for the modification of polymeric membrane surfaces
title_fullStr	Low pressure DC-plasma system for the modification of polymeric membrane surfaces
title_full_unstemmed	Low pressure DC-plasma system for the modification of polymeric membrane surfaces
title_sort	low pressure dc-plasma system for the modification of polymeric membrane surfaces
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2017
url	http://journalarticle.ukm.my/11068/ http://journalarticle.ukm.my/11068/ http://journalarticle.ukm.my/11068/1/13%20Chalad%20Yuenyao.pdf
first_indexed	2023-09-18T19:59:16Z
last_indexed	2023-09-18T19:59:16Z
_version_	1777406738761252864

Low pressure DC-plasma system for the modification of polymeric membrane surfaces

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