Surface modification of polyethylene powder by nitrogen and ammonia low pressure plasma in a fluidized bed reactor
2004; Elsevier BV; Volume: 61; Issue: 2 Linguagem: Inglês
10.1016/j.reactfunctpolym.2004.06.003
ISSN1873-166X
AutoresF. Brétagnol, Michaël Tatoulian, Farzaneh Arefi‐Khonsari, G. Lorang, J. Amouroux,
Tópico(s)Additive Manufacturing and 3D Printing Technologies
ResumoA combination of a fluidized bed and a low pressure plasma has been employed for the surface modification of low density polyethylene (LDPE) powders. Optical Emission Spectroscopy and Laser Doppler Anemometry has been used for the characterization of the reactor. XPS and contact angle measurements were carried out to reveal surface modification of nitrogen and ammonia plasma treatment of LDPE powders. Both nitrogen and ammonia plasma treatment show an increase of the hydrophilic character of the surface treated LDPE powders. XPS analysis shows the incorporation of new functional moieties including C–N, C–O groups on the surface of treated powders. In this configuration nitrogen plasma treatment leads to a better incorporation of nitrogen containing functional groups when compared to ammonia plasma.
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