Fly ash reinforced thermoplastic vulcanizates obtained from waste tire powder.
Novel thermoplastic composites made from two major industrial and consumer wastes, fly ash and waste tire powder, have been developed. The effect of increasing fly ash loadings on performance characteristics such as tensile strength, thermal, dynamic mechanical and magnetic properties has been investigated. The morphology of the blends shows that fly ash particles have more affinity and adhesion towards the rubbery phase when compared to the plastic phase. The fracture surface of the composites shows extensive debonding of fly ash particles. Thermal analysis of the composites shows a progressive increase in activation energy with increase in fly ash loadings. Additionally, morphological studies of the ash residue after 90% thermal degradation shows extensive changes occurring in both the polymer and filler phases. The processing ability of the thermoplastics has been carried out in a Monsanto processability testing machine as a function of shear rate and temperature. Shear thinning behavior, typical of particulate polymer systems, has been observed irrespective of the testing temperatures. Magnetic properties and percolation behavior of the composites have also been evaluated.
Elastomer Laboratory, Department of Polymer Science and Technology, Gyeongsang National University, Jinju 660-701, South Korea.
V
V
Sridhar
Zhang Zhen
ZZ
Xiu
Deng
D
Xu
Sung Hyo
SH
Lee
Jin Kuk
JK
Kim
Dong Jin
DJ
Kang
Dae-Suk
DS
Bang
D000269:Adhesives; D002244:Carbon / Q000737:chemistry*; D060729:Coal Ash; D003247:Conservation of Natural Resources; D020724:Elastomers / Q000737:chemistry*; D007220:Industrial Waste; D008280:Magnetics; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D052638:Particulate Matter / Q000737:chemistry*; D010969:Plastics / Q000138:chemical synthesis*; D011208:Powders; D033081:Shear Strength; D013314:Stress, Mechanical; D013718:Tensile Strength
D000269:Adhesives; D060729:Coal Ash; D020724:Elastomers; D007220:Industrial Waste; D052638:Particulate Matter; D010969:Plastics; D011208:Powders; D002244:Carbon