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Laminar morphology in polymer blends: Structure and properties
Author(s) -
Subramanian P. M.,
Mehra V.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760270910
Subject(s) - materials science , polymer , polyester , polymer blend , polyamide , polyethylene , morphology (biology) , composite material , laminar flow , permeability (electromagnetism) , polymer science , copolymer , membrane , thermodynamics , physics , biology , genetics
Polymer‐polymer blends offer a route for enhancement of various properties. When immiscible polymers are blended together (in the presence of a compatibilizer), the blend properties are dependent on the morphology of the phases. Uniform, fine dispersions generally result in “average” properties. Discussed here are blends of polyamides or polyesters with polyolefins, particularly polyethylene, where small amounts (3–20 percent) of the former polymers dispersed as essentially parallel, thin, large laminae produce substantial reduction (3–100 times) of permeability properties in blow‐molded/extruded articles. Physical properties of such blends, their permeability properties, and morphologies are discussed.