The
commercial
grade
polyacrylic
latex was modified in order to prepare a self-cleaning coating. TiO
/Agexchanged-zeolite-A
nanocomposite was prepared and used as additive in the matrix of polyacrylic latex
to
achieve
a hydrophilic and photocatalytic coating. FTIR and UV–visible spectroscopy, X-ray diffraction
patterns
and FESEM were used to characterize the composition and structure of the nanocomposites
and
coatings.
The
acrylic coatings, were prepared by using of TiO
2
/Ag-exchanged-zeolite-A additive,
had
better UV and visible light absorption, hydrophilic, degradation of organic pollutants, stability in
water
and
antimicrobial properties than pristine commercial grade polyacrylic latex coating. According
to
the results, the modified polyacrylic based coating containing 0.5 wt% of TiO
/Ag-exchanged-zeolite-A
nanocomposite
additive
with
TiO
2
2
to Ag-exchanged-zeolite-A ratio of 1:2 was the best coating considering
most of useful properties such as small band gap and low water contact angle. The water contact
angle
for unmodified polyacrylic latex coating was 68
◦
which was decreased to less than 10
in modified
coating
after 24 h LED lamp illumination.
◦
2