The use of textiles for technical applications in plasma processes can be of significant interest. Plasma treatment is an environmentally friendly process for sustainable surface modification of textiles. In this work, three different uses which are complementary and allow to explain basic surface phenomena related to the action of cold plasmas in the afterglow on the textile fibers are compiled.
In particular, this chapter reproduces the results obtained
on chosen fabrics treated in N2 and O2 afterglows where the N and O-atoms are
the dominant active species employed to develop process indicators and
membranes for sterilisation processes. In this sense, wool fabrics are employed
to verify the transmission of N atoms with regard to the modification of
materials contained within sterilisation pouches. The hydrophilicity of the
wool was found to change from hydrophobic to hydrophilic after 2 minutes of N2
afterglow treatment at 4 Torr, 1 slpm, 100 watts as described in [1]. By
comparing plasma and afterglow treatment, it has been remarked that, in N2
afterglows, only the active atoms as N-atoms (and O-atoms in impurity) treated
the wool. In the development of sterilisation indicators, cotton yarns knitted
with copper wire, and containing a thermocromic dye, revealed a clear colour
change from white to magenta after being treated in the same afterglow
conditions for 40 minutes.
In the last part of this work, wool fabrics have been used
to investigate the effects of N and O atoms from N2 and O2
afterglows on conferring them with shrink-resistant properties.
Author (s) Details
Cristina Canal
Biomaterials, Biomechanics and Tissue Engineering Group, Department of
Materials Science and Engineering (CEM), Universitat Politècnica de Catalunya
(UPC- BarcelonaTECH), c/ Eduard Maristany 14, 08019 Barcelona, Spain and
Research Center in Biomedical Engineering (CREB), UPC, Spain.
André Ricard
LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 118 route de Narbonne,
31062 Toulouse Cedex 9, France.
Please see the book here:- https://doi.org/10.9734/bpi/mono/978-93-49473-93-5/CH27
No comments:
Post a Comment