TY  - JOUR
T1  - Influence of Si-69 Treated Hybrid Carbon Black/Precipitated Calcium
Carbonate Filler on the Crosslink Density and Physico-Mechanical
Properties of NR/SBR Blends
AU - Nur Liyana Mamauod, Siti AU - Atiqah Suhaimi, Nor AU - Dol Hamid, Rossuriati AU - Amalina Ahmad Tarmizi, Amirah AU - Salina Sarkawi, Siti 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 20
SP  - 7771
EP  - 7777
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.7771.7777
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.7771.7777
KW  - Silane coupling agent
KW  -physical and mechanical properties
KW  -crosslink density
KW  -filler-rubbermatrix
KW  -natural rubber and styrene butadiene rubber
KW  -Carbon Black (CB)
AB  - Surface treament of Carbon Black (CB) and Precipitated Calcium Carbonate (PCC) was successfully
prepared and used as a reinforcement in Natural Rubber and Styrene Butadiene Rubber (NR/SBR) blends. The
effect of different concentration of tetra bis (3-(triethoxysilyl) propyl) tetrasulfide silane coupling agent (Si-69)
ranging from 2-10 wt.% on the CB/PCC surface was studied by calculating the crosslink density formed between
rubber and filler phases using Flory-Rehner equation. The data for Flory Rehner equation was obtained by
swelling measurement. And also, the physical and mechanical of Si-69 treated CB/PCC reinforced NR/SBR
blends was investigated. The amount of CB and PCC was set to be fixed. It was shown from the experimental
results that 6% of Si-69 solution was the optimum concentration which exhibited the highest crosslink density
developed between filler and rubber matrix phases as compared to the other treated and untreated samples. Up
to 6% of Si-69 concentration gave the plasticizing effect on the filler surface resulting in reduction of physical
and mechanical properties of NR/SBR blends. Apart from that the obtained results indicated that treated
CB/PCC filler at 6 wt.% Si-69 concentration exhibited better overall physical and mechanical properties due to
good filler-rubbermatrix interfacial bonding.
ER  -