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Physical and Morphological Changes of Poly(tetrafluoroethylene) After Using Non-Thermal Plasma-Treatments

Physical and Morphological Changes of Poly(tetrafluoroethylene) After Using Non-Thermal Plasma-Treatments

Jorge López-García, Florence Cupessala, Petr Humpolíček, Marian Lehocký

Materials (Basel). 2018 Oct 17;11(10):2013.

PMID: 30336620

Abstract:

A commercial formulation of poly(tetrafluoroethylene) (PTFE) sheets were surface modified by using non-thermal air at 40 kHz frequency (DC) and 13.56 MHz radiofrequency (RF) at different durations and powers. In order to assess possible changes of PTFE surface properties, zeta potential (ζ), isoelectric points (IEPs) determinations, contact angle measurements as well as Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) imaging were carried out throughout the experimentation. The overall outcome indicated that ζ-potential and surface energy progressively changed after each treatment, the IEP shifting to lower pH values and the implicit differences, which are produced after each distinct treatment, giving new surface topographies and chemistry. The present approach might serve as a feasible and promising method to alter the surface properties of poly(tetrafluoroethylene).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9002840	Poly(tetrafluoroethylene)		9002-84-0	Price

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