| dc.description.abstract | Cassava peel is a waste by-product that contains cellulose which was
potential to be used as fillers in natural rubber latex products. The study on the effect
of drying temperature and alkanolamide compositon on the mechanical properties of
natural rubber latex products was done in order to obtain the optimum drying
temperature and alkanolamide composition in producing crosslink density and
mechanical properties such as tensile strength, elongation at break, and tensile
modulus. Natural rubber latex was produced by using coagulant dipping method.
Natural rubber latex was filled with cassava peel waste powder and alkanolamide
with composition 0; 0,5; 1,0; 1,5; 2,0; 2,5% wt. The manufacture of natural rubber
latex products was started by pre-vulcanization process at 70°C and followed with
vulcanization process at 100°C and 120°C for 20 minutes. The result of FTIR
characterization showed that alkanolamide as compatibilizer has polar group which
can modified cassava peel waste and non-polar group which can modified the natural
rubber latex. The results of mechanical properties showed that higher drying
temperature will improved the crosslink reaction which was shown from the
mechanical properties at 120°C were higher than the mechanical properties at 100°C.
Meanwhile, alkanolamide was a substance that can be used as co-curing agent in
natural rubber latex which was proven from the improvement of crosslink density
until the addition of 1% alkanolamide. The results of mechanical properties were
supported by Scanning Electron Microscopy which showed smooth surface and some
matrix tearing on the morphology of natural rubber latex products with the addition
of 1% alkanolamide. | en_US |
