Diener femto, Operating Instructions Manual, Page: 154 / 156

- 154 -
1
1
0
0
.
.
I
I
n
n
f
f
o
o
r
r
m
m
a
a
t
t
i
i
o
o
n
n
A
A
c
c
c
c
o
o
r
r
d
d
i
i
n
n
g
g
P
P
l
l
a
a
s
s
m
m
a
a
P
P
r
r
o
o
c
c
e
e
s
s
s
s
e
e
s
s
10.10.4.3 Coating of glasses and ceramics via plasma polymerization
The main problem in coating glasses and ceramics is to prepare the surface (see chapter activation
and etching). As soon as this problem is solved, there is no limit in the variety of coating applications.
The particular bonding adhesion of the coating has to be tested in individual case. At incompatibility
between the coating and the substrate material, may be intermediate layers as bonding agents have to
be spread on the surface.
An example for a successful hydrophobic and oliophobic coating is shown on the photo below.
untreated glass treated glass
Group Material Gas
Pressure
[mbar] Power [%]
Time
[min.]
Glass
glass C
4
F
8
0,1-0,5 50-100 30-120
(The process parameters power and time have to be adapted according to the specification of the machine (type
of generator, power of generator, type of electrode) and according to the properties of the product/sample.)
10.10.4.4 Coating of textiles via plasma polymerization
Textiles are easy to coat in plasma. The durability of the hydrophobic coating is at the moment limited
on 10 washing cycles (with detergents) for a very good hydrophobic effect and then the hydrophobic
effect starts to decrease fast. Hydrophobic coatings are reached by using fluorine containing gases
and monomers.
untreated cotton (water) treated cotton (water) treated cotton (Isopropyl alcohol)
(Water drop has been coloured for better visibility.)
oil oil
Isopropyl alc. Isopropyl alc. water water