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Title

Effect of compatibilizing agents on the physical properties of iPP/HDPE organoclay blends

AuthorsBoufassa, Samia; Doufnoune, R.; Hellati, Abdelhak; Haddaoui, Nacceredine; Cagiao, M. E.
KeywordsCompatibilizers
Crystallinity
Macro- and micromechanical properties
Polyolefin blends.
Clay
Issue Date2013
PublisherWalter de Gruyter
CitationJournal of Polymer Engineering 33: 589- 598 (2013)
AbstractBlends 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 Younǵs 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 aWAXS 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 Younǵs 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.
URIhttp://hdl.handle.net/10261/103711
DOI10.1515/polyeng-2013-0048
Identifiersdoi: 10.1515/polyeng-2013-0048
issn: 0334-6447
Appears in Collections:(CFMAC-IEM) Artículos
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