Valorization of regenerated LDPE by blending with EPDM in the presence of peroxide |
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Authors: | Ratiba Irinislimane Naïma Belhaneche-Bensemra Abdelhakim Benlefki |
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Institution: | (1) Département de Génie de l’Environnement, école Nationale Polytechnique, BP 182 El, Harrach, Alger, Algeria;(2) Université de Boumerdes, Boumerdes, Algeria |
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Abstract: | The present work aims to the valorization of regenerated low density polyethylene (LDPE) by blending with small quantities
of ethylene-propylene-diene monomer (EPDM). Three types of regenerated LDPE (rLDPE) from different waste sources (greenhouses,
milk pouches,...) were characterized in terms of physico-chemical (density, melt flow index, water absorption, melting temperature
and structure by Fourier transform infrared (FTIR) spectroscopy) and mechanical properties (tensile properties and hardness).
The optimization of the peroxide content required for the crosslinking of the LDPE/EPDM blends was due by measuring torque
and tensile strength. Once the peroxide content was optimized, different blends were obtained by varying the EPDM content.
Then they were characterized physically (density, water absorption) and mechanically (tensile properties and hardness). Finally,
the blends behavior under the conjugated effect of heat and water was determined at 70 °C for 7 days. The obtained results
showed that this kind of blending has contributed in improving the performance of regenerated LDPE. |
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Keywords: | Regenerated LDPE EPDM Crosslinking Blending Characterization |
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