Reinforcing effect of nanosilica on the properties of natural rubber/reclaimed ground rubber tire vulcanizates

2012 ◽  
Vol 53 (2) ◽  
pp. 227-237 ◽  
Author(s):  
Debapriya De ◽  
Prabir Kr. Panda ◽  
Madhusudan Roy ◽  
Satyaban Bhunia ◽  
Abu Ismail Jaman
Keyword(s):  
Natural Rubber ◽  
Reinforcing Effect ◽  
Rubber Tire ◽  
Ground Rubber

Characterization of Ground Rubber Tire and its Effect on Natural Rubber Compound

2000 ◽  
Vol 73 (5) ◽  
pp. 902-911 ◽  
Author(s):  
Amit K. Naskar ◽  
S. K. De ◽  
A. K. Bhowmick ◽  
P. K. Pramanik ◽  
R. Mukhopadhyay
Keyword(s):  
Natural Rubber ◽  
Physical Properties ◽  
Rubber Compound ◽  
Rubber Tire ◽  
Ground Rubber

Abstract Ground rubber tire (GRT) particles of different sizes were characterized and the effect of these particles in a natural rubber (NR) compound was studied. It is found that smaller particles contain less polymer, but have higher amounts of fillers and metals with respect to polymer. NR compound containing smaller GRT particles shows better physical properties, but poorer aging characteristics.

RECLAIMING OF GROUND RUBBER TIRE BY SAFE MULTIFUNCTIONAL RUBBER ADDITIVES: II VIRGIN NATURAL RUBBER/RECLAIMED GROUND RUBBER TIRE VULCANIZATES

2014 ◽  
Vol 87 (1) ◽  
pp. 152-167 ◽  
Author(s):  
Swapan Kumar Mandal ◽  
Md Najib Alam ◽  
Kumarjyoti Roy ◽  
Subhas Chandra Debnath
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Thermo Gravimetric Analysis ◽  
Dynamic Mechanical Properties ◽  
Gravimetric Analysis ◽  
Rubber Content ◽  
Rubber Tire ◽  
Ground Rubber ◽  
Cure Time ◽  
And Storage

ABSTRACT Mechanochemically reclaimed ground rubber tire (GRT) was revulcanized in combination with virgin natural rubber (NR). The NR/GRT vulcanizates with GRT content 20–50 wt% were prepared and studied. Reclaiming of GRT was successfully carried out by tetra benzyl thiuram disulfide (TBzTD) in the presence of spindle oil at around ambient temperature. The cure characteristics and mechanical properties of the virgin NR/reclaimed GRT blend were studied. Increasing the reclaimed rubber (RR) content in the blend decreases the optimum cure time without altering the scorch time. The effect of carbon black was studied in NR/RR (80/20) blend vulcanizate for the ultimate use of NR/RR blend vulcanizate. Aging characteristics of different NR/RR blends were evaluated. The swelling behavior, thermo-gravimetric analysis, and dynamic mechanical properties of NR/RR blend vulcanizates were examined. The equilibrium swelling of the NR vulcanizates was reduced with increasing reclaimed rubber content. Thermal stability of the blend vulcanizates was increased with increase in reclaimed rubber content. The elastic and storage modulus of the NR/RR vulcanizates improved with increasing reclaimed rubber content. Scanning electron microscopy studies further indicate the coherency and homogeneity in the NR/RR vulcanizate.

Preparation and characterization of polypropylene/waste ground rubber tire powder microcellular composites by supercritical carbon dioxide

2008 ◽  
Vol 16 (5) ◽  
pp. 404-410 ◽  
Author(s):  
Zhen Xiu Zhang ◽  
Sung Hyo Lee ◽  
Jin Kuk Kim ◽  
Shu Ling Zhang ◽  
Zhen Xiang Xin
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Rubber Tire ◽  
Ground Rubber ◽  
Supercritical Carbon

Ground Rubber Tire / Thermoplastic Composites: Effect of Different Ground Rubber Tires

1993 ◽  
Vol 66 (4) ◽  
pp. 664-677 ◽  
Author(s):  
P. Rajalingam ◽  
J. Sharpe ◽  
W. E. Baker
Keyword(s):  
Particle Size ◽  
Impact Energy ◽  
Surface Oxidation ◽  
Surface Concentration ◽  
Thermoplastic Composites ◽  
Beam Radiation ◽  
Rubber Tire ◽  
Ground Rubber ◽  
Surface Modification Techniques ◽  
The Impact

Abstract Thermoplastic composites containing different Ground Rubber Tire (GRT) materials, Linear Low Density Polyethylene (LLDPE) and, in some case, a coupling agent (IB‘E’, an ethylene glycidyl methacrylate copolymer) were prepared by melt blending. The impact energies of all the thermoplastic composites (normally containing 40 wt % GRT) were evaluated using an instrumented impact tester. The effects of the GRT particle-size, particle size distribution and shape, the mode of grinding, and the oxygen surface concentration were analyzed. The wet-ambient-ground GRT based composites show higher surface oxidation and give better impact energy than cryo-ground and normal air-ground GRT based composites. Smaller GRT particle size results in a small increase in the impact property of the composite and a greater influence on the melt processability of the composites. Of the different GRT surface modification techniques studied for improved composite interfacial adhesion and impact properties the composites from electron beam radiation treated GRT yield higher increases in impact energy in comparison to corona and plasma treated GRT based composites.

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