This paper is targeting towards studying on the possibility to modify some properties
of unsaturated Polyester compounds by adding rubber materials in order to improve its
flexibility property. For this target, Waste of cars' tires was used in two
forms powder and
pieces, and the liquid rubber Styrene-butadiene was used as another type of rubber. After
that the modification was detected by measuring the possibility of the resulted compound
materials to absorb vibration power, and reduce the noise that is produced by eccentric
crankshaft circulation at different rotating speeds, (300, 500, 700) rpm.
Test results demonstrate that there will be Modification in the construction of the
compounds at low rotating speeds (300 rpm). On the other hand, it demonstrates different
results at high rotating speeds.
This work investigated some characters of the ion-exchanger. The prepared
ion exchanger was carried out from the reaction of a waste rubber with
concentrated sulphuric acid, through the interchange of its counter ion with the
metal - ions of “Cu٢+
and Ni٢+“. Many observation were seen:
First, the capacity of the exchanger has greater value (٤ meq/g) in the case
of “Ni٢+” ion.
