Effect Of Plasma Treatment On
Lyocell Fabric/PLA
Author(s)
B. S. Kim, M. M. Kim, J. R. Ha, M. K. Um & B. H. Chun
Abstract
Atmospheric glow discharge (AGD) was developed with industrial plasma
sources by using high voltage radio frequency (RF) excitation at KHz frequency
ranges. It is possible to produce a steady-state uniform glow discharge at
atmospheric pressure with various gases, thus eliminating the requirement of a
vacuum system to expose the materials to plasma. The RF frequency should be
set in the limited range to produce AGD: if it is too low, the discharge will not
initiate and if it is too high, the plasma will either form a filamentary discharge
between the electrode plates or it will be transformed to arc discharge. The
advantage of AGD is to modify or coat the materials with good uniformity and
making use of the AGD surface modification process, a strong interfacial
adhesion can be formed between the constituents and the matrix material. Hence,
AGD polymerization may be used to modify the surface properties of Lyocell
fabric (Acetate Taffeta) and Poly Lactic Acid (PLA) matrix.
In the AGD process, Helium is used as a carrier gas and the monomer
(Acrylic Acid) is used to modify the fibre surface property by plasma
polymerization. The reactor is operated at room temperature while the surface is
modified at atmospheric pressure.
Peel and tensile strength test, and characterizations by SEM were carried out
for Lyocell fabric/PLA. Compared to raw fabric, plasma and Silane treatments
have improved the tensile strength at a maximum of 30.4 and 27.4%,
respectively.
Keywords: Lyocell, Poly Lactic Acid, atmospheric glow discharge, Silane.
Keywords
Lyocell, Poly Lactic Acid, atmospheric glow discharge, Silane
Related Book
Other papers in this volume
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