Effect Of Different Origin Of Natural Rubber, Carbon Black Loading, And Vulcanization Systems On Properties Of Natural Rubber Compounds
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Date
2011-06
Authors
Phanny, Yos
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
In this research, Mooney viscosity was tested for natural rubber (NR) from
Malaysia (SMR CV60), Cambodia (SCR 10 and SCR L) and Vietnam (SVR 3L).
The effect of different origins of NR, different loading of carbon black (CB) filled
NR compounds, and different vulcanization systems (efficient vulcanization (EV)
and conventional vulcanization (CV) systems) were studied. Origins of NR showed
different cure characteristics due to molecular weight and protein content. In EV
system, SCR10 possesses higher molecular weight and protein content hence give
faster cure rate for both gum and filled compounds. For CV system SCR L possesses
lower molecular chain but higher protein content exhibiting faster cure rate for gum
compound. For effect of CB loading, higher CB loading significantly increased the
physical and mechanical properties of NR compounds, but decreases fatigue life due
to stability of the compound. Compounds with CV system show higher physical and
mechanical properties compared to EV system, but CV system are vulnerable to heat
ageing due to the breakage of polysulphidic crosslinks.
Description
Keywords
Natural Rubber, Carbon Black Loading, And Vulcanization , Natural Rubber Compounds