Ateração da molhabilidade em polietilenos de alta densidade (PEAD) através do uso de microjatos de plasma (Enhancing wettability of high density polyethylenes (HDPE) through microplasma jets)

Janaina Correa Nascimento (jananasci02@hotmail.com)1, Yudji Dieterich Uno Hoyer (hoyer@ita.br)1, Marcelo Pego Gomes (gomesmp@hotmail.com)1, Inacio Malmonge Martin (martin@ita.br)1, Bogos Nubar Sismanoglu (bogos@ita.br)1, Vladir Wagner Ribas (vladir@ita.br)1, Luis Madson de Sousa Costa (madsonfisica@gmail.com)1


1Instituto Tecnologico de Aeronautica

This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2015
Volume: 13,   Issue: 9 
ISSN: 1548-0992


Abstract:
This paper aims at the characterization of plasma microjets generated by open microhollow cathodes to ionize gases such as air, N2, He and O2. The electrical and optical parameters were raised. Through the optical emission spectroscopy, gas temperature (Tg) and the excitation temperature were estimated. Tg ranging from 2100K to 600K for a gas flow rate ranging from 0 to 400ml/min. From 150 to 400ml/min Tg remained close to 700K. As an application, the treatment of smooth surfaces of high density polyethylenes (HDPE) was performed with a view to improve the hydrophilic property of the surface.

Index Terms:
Optical emission spectroscopy, microplasma jet, electric field   


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