Cure characteristics, mechanical properties and back face signature of ballistic rubber trauma pack Online publication date: Mon, 18-May-2020
by Mazliah Mazlan; Noraiham Mohamad; Jeefferie Abd Razak; Hairul Effendy Ab Maulod; Azmi Minal; Mohd Mef'at Hamdan
International Journal of Nanotechnology (IJNT), Vol. 16, No. 11/12, 2019
Abstract: Curing characteristics, mechanical properties and back face signature (BFS) of natural rubber (NR) and chemically modified natural rubber (CNR) filled carbon black (CB) nanocomposites are reported. Five bullet shots for each samples at velocity of 367 ± 10 m s-1 and the indentation depths on oil based modelling clay backing known as Roma Plastilina No. 1 were measured. Results indicate that the minimum torque and maximum torque increase with increasing carbon black, whereas scorch time and cure time show decreasing trend. The value of tensile strength, elongation at break and modulus at 300% elongation (M300) improved with incorporation of 50 phr CB especially in the CNR filled composites. Further increment of CB reduces the enhancement of the mechanical properties. The CNR 50 recorded the lowest BFS of 4.55 mm indentation in depth. In conclusion, the CNR filled 50 phr carbon black is proven to be the most suitable for the trauma pack performance.
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