Page 135 - Handbook of Surface Improvement and Modification

130 Easy Surface Cleaning and Stain Inhibition

sure tolerance and mechanical
robustness, all of which are not
readily achievable with the state-
of-the-art superhydrophobic coat-
24
ings. Figure 8.11 shows mor-
phology of coatings on different
fabrics with comments on how
fabric structure affects treatment
and which solution is the best per-
24
former.
The book chapter contains
discussion on soil repellency and
stain resistance through hydropho-
bic and oleophobic treatments. 25
Figure 8.12. SEM image and chemical mapping of concrete surface The discussed methods of treat-
cross-section with permanent protection sprayed by graffiti paint ment include long and short chain
(18.3 μm thickness), magnification 1000x. [Adapted, by permis- fluorocarbons, dual-action stain-
sion, from Neto, E, Magina, S; Camoes, A; Begonha, A; Evtuguin,
DV; Cachim, P, Construction Building Mater., 102, 435-44, 2016.] repellent and release fluorocar-
bons, dendrimers, nanotechnology,
hydrophobins (spherical proteins),
25
and plasma treatments. It is
expected that the future research
will seek alternatives to fluorocar-
25
bons.
The easy wetting of textiles
is very important for its processing
as well as in a large number of end
26
uses. Higher repellency or poor
wetting with water and oil as well
as resistance to staining are essen-
tial for various end uses in cloth-
ing, home, and technical textiles. 26
This difference in expectation of
Figure 8.13. SEM image and chemical mapping of cross-section processor and user is discussed in
26
concrete surface protected with AGS2 and paint sprayed (1000x). a book chapter. In addition to the
[Adapted, by permission, from Neto, E, Magina, S; Camoes, A; theoretical background, the chap-
Begonha, A; Evtuguin, DV; Cachim, P, Construction Building
Mater., 102, 435-44, 2016.] ter includes information on various
finishes, including metals salts,
paraffins, pyridinium-based, resin formers, organometallic complexes, silicone finishes,
26
fluorocarbon, fluorosilicone copolymers, and dual-action repellents.
27
The book chapter includes information on carpet finishing. A sections of the book
chapter include information on soil-release finish and water-, oil-, and stain-repellent fin-
27
ishes.
Graffiti paint easily penetrated into hydrophilic porous concrete surface layer. and
the anti-graffiti coating did not fully impede the paint penetration into the concrete struc-