Potential feasibility study of lehigh tyre dust for thermoplastic elastomer
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Date
2019-07
Authors
Nur Afiqah Binti Shamsuddin
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Abstract
These research studies are aimed to determine the blend ratio of Lehigh tyre dust (LTD) with polyvinyl chloride (PVC) and to investigate the effect of epoxidized natural rubber (ENR) which is ENR-50 and ENR-25 as a ternary blend system in PVC/LTD on mechanical and physical properties. Six compositions of PVC/LTD blends system are processed by using single screw extruder at temperature 170-195oC and the ternary blend of PVC/LTD/ENR are processed by using Haake internal mixer at temperature 170oC and then samples are produced by using compression moulding at temperature 195oC. All the samples for blends system were prepared for the characterization which includes specific gravity, tensile, tear, hardness and Fourier Transform Infrared Spectroscopy (FTIR) test. Due to the immiscibility of PVC/LTD blend system, mechanical and physical properties of the blend systems are dropped drastically especially for elongation at break which the properties of thermoplastic elastomer (TPE) blend. The presence of the ENR-50 and ENR-25 as the matrixes in the 80/20 PVC/LTD blend system are improved the miscibility of the blend system. The mechanical and physical properties of the blend system increased when the ENR content is increased. 6% of ENR content in the PVC/LTD blends is the optimum loading of ENR since it shows the highest mechanical and physical properties in blends system.