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Interfacial adhesion in polyethylene–kaolin composites: Improvement by maleic anhydride‐grafted polyethylene
Author(s) -
Hindryckx F.,
Dubois Ph.,
Patin M.,
Jérôme R.,
Teyssié Ph.,
Marti M. Garcia
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070560909
Subject(s) - maleic anhydride , materials science , polyethylene , composite material , high density polyethylene , stearic acid , ultimate tensile strength , filler (materials) , izod impact strength test , polymer , polymer blend , adhesion , elongation , copolymer
Polyethylene–kaolin composites were investigated with a special emphasis on the control of the interfacial adhesion. Both matrix and filler were modified for this purpose. A stearic acid and maleic anhydride‐grafted polyethylene were used as potential interfacial agents and the efficiency of aminosilane‐surface‐treated kaolin was considered. Tensile strength, elongation, impact strength, and melt index were currently measured in relation to the processing conditions. Enhanced interfacial filler‐polymer adhesion progressively results in an decreased melt index. This has been clearly shown by comparing the effect of two polymeric additives to the polymer matrix, i.e., a maleic anhydride‐grafted HDPE (MAGPE) and an unmodified HDPE of a similar melt index. Compared to low molecular weight additives, such as stearic acid and aminosilane, MAGPE has proved to be a very efficient additive in improving the impact resistance of HDPE–kaolin composites even at low contents. © 1995 John Wiley & Sons, Inc.