THERMAL AND MECHANICAL BEHAVIOUR OF RECYCLED POLYPROPYLENE/POLYETHYLENE BLENDS OF REJECTED-UNUSED DISPOSABLE DIAPERS
Keywords:
Recycled-Unused Disposable Diapers, Recycled-Polymer Blend, Mechanical Properties, Thermal Properties, Morphological Properties
Abstract
This paper presents the characterization of recycled plastic that derived from the rejected-unused disposable diapers containing polypropylene (PP) and polyethylene (PE), noted as r-PP/PE. The blends were tested for thermal, mechanical and morphological properties. Tensile test showed that the r-PP/PE is lower in strength and strain but higher for modulus in comparison to the v-PP/PE by 56%, 55%, and 2% respectively. For the flexural properties, the r-PP/PE also has lower in strength, strain, and modulus as 67%, 13%, and 77% respectively. Lower absorbed energy and impact strength was observed in r-PP/PE, 36% and 24% respectively compared to v-PP/PE. Thermal analysis revealed that the degree of crystallinity of recycled PP and PE was 19% and 20% lower than the virgin possibly due to thermal degradation during the process. Morphological examination revealed the present of impurity, phase separations and inhomogeneity were found in the r-PP/PE as compared to v-PP/PE that might contribute to their lower strength.
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References
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[5] N. Singh, D. Hui, R. Singh, I. P. S. Ahuja, L. Feo, and F. Fraternali, “Recycling of plastic solid waste : A state of art review and future applications”, Composite Part B, vol. 115, pp. 409–422, 2017.
[6] N. T. Dintcheva, F.L. Mantia, F. Trotta, M.P. Luda, G. Camimo, M. Paci, L. Di Maio and D. Acierno, “Effects of filler type and processing apparatus on the properties of the recycled light fraction from municipal post-consumer plastics”, Polymer for Advanced Technologies, vol. 12, no. 9, pp. 552–560, 2001.
[7] D. S. Achilias, “Chemical recycling of poly (methyl methacrylate) by pyrolysis. Potential use of the liquid fraction as a raw material for the reproduction of the polymer”, European Polymer Journal, vol. 43, no. 6, pp. 2564–2575, 2007.
[8] J. Colón, L. Ruggieri, A. Sánchez, A. González and I. Puig, “Possibilities of composting disposable diapers with municipal solid wastes”, Waste Management Research, vol. 29, no. 3, pp. 249–259, 2010.
[9] M. J. Taufiq, Z. Mustafa and M. R. Mansor, “Utilisation of recycled thermoplastics sourced from rejected-unused disposable diapers as polymer blends”, Journal of Mechanical Engineering Science, vol. 11, no. 4, pp. 3137–3143, 2017.
[10] S. Jose, A. S. Aprem, B. Francis, M. C. Chandy, P. Werner, V. Alstaedt and V. Thomas, “Phase morphology, crystallization behaviour and mechanical properties of isotactic polypropylene/high density polyethylene blends”, European Polymer Journal, vol. 40, no. 9, pp. 2105–2115, 2004.
[11] A. C. Y. Wong and F. Lam, “Study of selected thermal characteristics of polypropylene/polyethylene binary blends using DSC and TGA”, Polymer Testing, vol. 21, no. 6, pp. 691–696, 2002.
[12] J. W. Teh, “Structure and properties of polyethylene-polypropylene blend”, Journal of Applied Polymer Science, vol. 28, no. 2, pp. 605–618, 1983.
[13] W. D. Callister Jr and D. G. Rethwisch, “Materials Science and Engineering: An Introduction, 10th Edition. Danvers: John Wiley & Sons, 2011.
[14] R. A. Shanks, J. Li and L. Yu, “Polypropylene-polyethylene blend morphology controlled by time-temperature-miscibility”, Polymer, vol. 41, no. 6, pp. 2133–2139, 2000.
[15] Z. Baccouch, S. Mbarek and M. Jaziri, “Experimental investigation of the effects of a compatibilizing agent on the properties of a recycled poly (ethylene terephthalate)/polypropylene blend”, Polymer Bulletin, vol. 74, no. 3, pp. 839-856, 2017.
[16] J. Ren, H. Fu, T. Ren and W. Yuan, “Preparation, characterization and properties of binary and ternary blends with thermoplastic starch, poly (lactic acid) and poly (butylene adipate-co-terephthalate)”, Carbohydrate Polymer, vol. 77, no. 3, pp. 576–582, 2009.
[17] R. A. Chivers and D. R. Moore, “The effect of molecular weight and crystallinity on the mechanical properties of injection moulded poly (aryl-ether-ether- ketone) resin”, Polymer, vol. 35, no. 1, pp. 110–116, 1994.
Published
2019-12-31
How to Cite
Mansor, M., Taufiq, M., Mustafa, Z., Jumaidin, R., Mastura, M., Firdaus, H., & Basori, B. (2019). THERMAL AND MECHANICAL BEHAVIOUR OF RECYCLED POLYPROPYLENE/POLYETHYLENE BLENDS OF REJECTED-UNUSED DISPOSABLE DIAPERS. Journal of Advanced Manufacturing Technology (JAMT), 13(3). Retrieved from https://jamt.utem.edu.my/jamt/article/view/5734
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