Effect of compatibilizing agents on the physical properties of iPP/HDPE organoclay blends
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Samia Boufassa
Abstract
Blends of isotactic polypropylene (iPP) and high density polyethylene (HDPE), with and without compatibilizers and with different organoclay amounts (1%, 3%, and 5%), were systematically investigated to assess the effect of the additives on the crystallinity of the blends, as well as the correlation between the microhardness, H and the Young’s modulus E. The compatibilizers used were: maleic anhydride grafted styrene ethylene butadiene styrene (SEBS-g-MAH), maleic anhydride grafted polyethylene (PE-g-MAH), maleic anhydride grafted polypropylene (PP-g-MAH), ethylene propylene diene monomer (EPDM), and maleic anhydride grafted EPDM (EPDM-g-MAH). The thermal properties and crystallization behavior were determined by differential scanning calorimetry (DSC) and wide angle X-ray scattering (WAXS). Macro- and micromechanical properties were also investigated. The results obtained showed that the addition of clay slightly increases the crystallinity αWAXS of the blends. However, the hardness H decreases enormously only by adding 1 wt% of clay. With higher clay amounts, H increases again. The relationship between the Young’s modulus E and the hardness H for all the studied blends was found to be somewhat higher than the one obtained for polyethylene (PE) samples with different morphologies.
S.B. gratefully acknowledges the “Université Ferhat Abbas, Sétif UFAS” for the financial support of this investigation. M.E.C. thanks the Spanish MICINN for the generous support of this investigation (Grant MAT2009-07789).
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Artikel in diesem Heft
- Masthead
- Masthead
- Original articles
- Degradation of epoxidized natural rubber compatibilized linear low density polyethylene/ soya powder blends: the effect of natural weathering
- Effect of compatibilizing agents on the physical properties of iPP/HDPE organoclay blends
- Thermal and mechanical properties of ultrahigh molecular weight polyethylene/high-density polyethylene/polyethylene glycol blends
- Effect of MMT concentrations as reinforcement on the properties of recycled PET/HDPE nanocomposites
- Three-dimensional viscoelastic simulation of the effect of wall slip on encapsulation in the coextrusion process
- Studies on thin films of PVC-PMMA blend polymer electrolytes
- Morphological study of PVDF/PMMA/TiO2 blend films prepared by melt casting process
- Effects of calcium stearate and metal hydroxide additions on the irradiated LDPE/EVA compound properties
- Preparation of poly(sebacic anhydride) and polylactic acid pills used as drug carrier for levofloxacin controlled release
- Gray optimization of process parameters of surface modification of coconut sheath reinforced polymer composites
