| dc.description.abstract | This research has carried out the manufacture of epoxy-modified bentonite
composite. Research about the usage of modified bentonite as filler in epoxy has
been done for the purpose of getting the best composition of modified bentonite as
filler at epoxy composite in getting the best of the mechanical properties such as
tensile strength, impact strength and the water absorption. In this research, epoxy
resin mixed with bentonite which have been modified using
Cetyltrimethylammonium Bromide (CTAB) surfactant with various concentrations
by 0,05, 0,1, and 0,15M and added Titanium Dioxide (TiO2) at the modification of
bentonite as filler. In this research, epoxy resin was mixed with modified bentonite
with the filler composition by 5%, 10%, 15%, and 20% of the weight of the
composite with hand lay-up method. From the FTIR characterization result obtained
that the bond between matrix and the filler produced only interfacial bonding
between the matrix and the filler. Result of testing the mechanical properties indicate
that, on the composition of the filler 5% with 0,1M of surfactant concentration
obtained the maximum value of tensile strength with 33,667 MPa and maximum
value of impact strength with 12564,9 J/m2
. The results of mechanical properties
tests was further supported by analysis of Scaning Electron Microscopy (SEM). On
the test of water absorption, the water absorption capacity increased along with the
increased of filler composition. | en_US |
