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Tensile properties of LDPE + Boehmite composites
Author(s) -
Brostow Witold,
Datashvili Tea,
Huang Bernard,
Too Jonathan
Publication year - 2009
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20610
Subject(s) - materials science , composite material , boehmite , ultimate tensile strength , compression molding , low density polyethylene , environmental scanning electron microscope , scanning electron microscope , polyethylene , aluminium , mold
Effect of interfacial interactions on mechanical properties of composites of low‐density polyethylene reinforced with micrometric Boehmite powders were studied in combination with two silane coupling agents vinyltri(2‐methoxyethoxy)‐silane (VTMES)‐SCA 972 and 3‐(trimethoxysilyl)‐propylmethacrylate (3MPS)‐SCA 989. Samples were prepared via melt mixing followed by compression or injection molding. Morphology and mechanical behavior of the composites were investigated as a function of the filler loading. The modulus of the composites increases with increasing contents of micrometric Boehmite particles. Environmental scanning electron microscopy (ESEM) examination reveals formation of fibrous structures upon addition of the treated micro fillers. We presume the fibrillation of the LDPE phase is related to changes of the matrix viscosity. Improvements in mechanical properties are attributed to homogeneous dispersion and good interfacial adhesion between the filler and the matrix, as evidenced by ESEM. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers