Preparation and Properties of PVC/ELNR-30 Blends

Owen Egharevba; Felix Ebhodaghe Okieimen; Uzoma Ndubuisi Okwu; Dosu Malomo

doi:10.4236/msa.2011.23024

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Preparation and Properties of PVC/ELNR-30 Blends

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DOI: 10.4236/msa.2011.23024 5,282 Downloads 10,090 Views Citations

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Owen Egharevba, Felix Ebhodaghe Okieimen, Uzoma Ndubuisi Okwu, Dosu Malomo

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ABSTRACT

The mechanical and thermal properties of solution-cast blends of Polyvinyl chloride (PVC) and Epoxidized Liquid Natural Rubber having 30 mole % epoxidation (ELNR-30) have been examined using Zwick materials testing machine and heating in air circulating oven (200°C) at different time intervals respectively. The ELNR was prepared by oxidative degradation of natural rubber latex using Phenylhydrazine/Oxygen system and subsequent epoxidation with formic acid and 30% H₂O₂. Tensile strength of unblended PVC was 26.5 ± 0.5 MPa. The blends had lower tensile strength which decreased with increase in blend ratio of ELNR-30. Experimental data revealed that there was greater homogeneity in the PVC/ELNR-30 (80/20) compared with PVC/ELNR-30 (90/10). The PVC/ELNR-30 (80/20) also showed superior elongation at maximum (%) than the unblended PVC and PVC/ELNR-30 (90/10) in that order. Thermal stability decreased in the order PVC, PVC/ELNR-30 (90/10), PVC/ELNR-30 (80/20).

KEYWORDS

Polyvinyl Chloride (PVC), Epoxidation, Liquid Natural Rubber (LNR), Blends, Mechanical and Thermal Properties

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

O. Egharevba, F. Okieimen, U. Okwu and D. Malomo, "Preparation and Properties of PVC/ELNR-30 Blends," Materials Sciences and Applications, Vol. 2 No. 3, 2011, pp. 196-199. doi: 10.4236/msa.2011.23024.

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