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UHMWPE/HDPE in-reactor blends, prepared by in situ polymerization: Synthetic aspects and characterization

AuthorsFerreira, A. E.; Cerrada, María L. ; Pérez Soler, Estela ; Lorenzo, V.; Vallés, E.; Ressia, Jorge; Cramail, H.; Lourenço, J. P.; Ribeiro, M. R.
KeywordsPolymer composites
In-reactor blends
Issue Date2017
PublisherBudapest University of Technology
CitationExpress Polymer Letters 11: 344-361 (2017)
AbstractThis work covers the synthesis and characterization of in-reactor Ultra-High Molecular Weight Polyethylene/ High Density Polyethylene, UHMWPE/HDPE, blends by in situ polymerization in a single reactor, through dual catalyst immobilization. These blends are synthesized combining two different catalysts (one for each targeted molar mass) co-im-mobilized in mesoporous Santa Barbara Amorphous, SBA-15, particles. First, the ethylene polymerization behavior is investigated, under different polymerization conditions. Then, studies on the thermal, mechanical and rheological characteristics of the produced in-reactor blends are presented and their performance is compared and discussed in a comprehensive way. Moreover, the effect of different filler contents on the properties exhibited by the resulting materials is investigated. Results have shown that these in-reactor UHMWPE/HDPE blends exhibit a complex thermal, mechanical and rheological behavior, which depends mainly on the proportion between the two polymer components and on the amount of SBA-15.
Publisher version (URL)http://dx.doi.org/10.3144/expresspolymlett.2017.34
Identifiersdoi: 10.3144/expresspolymlett.2017.34
issn: 1788-618X
e-issn: 1788-618X
Appears in Collections:(ICTP) Artículos
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