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Particles versus fibrillar morphology in polyolefin ternary blends
Author(s) -
Kim B. K.,
Do I. H.
Publication year - 1996
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/(sici)1097-4628(19960620)60:12<2207::aid-app19>3.0.co;2-3
Subject(s) - materials science , polyolefin , ternary operation , morphology (biology) , composite material , electron paramagnetic resonance , polymer blend , viscosity , natural rubber , scanning electron microscope , izod impact strength test , particle (ecology) , particle size , flexural modulus , flexural strength , polymer , polymer chemistry , chemical engineering , copolymer , ultimate tensile strength , oceanography , physics , layer (electronics) , nuclear magnetic resonance , biology , computer science , engineering , genetics , programming language , geology
PP/EPR binary and PP/(EPR/PE) ternary blends were prepared based on the viscosity ratio, using a corotating twin‐screw extruder. Both fibrillar structures and particle‐in‐matrix morphologies were created depending on the viscosity ratio of rubber domain to the matrix PP (η EPR /η PP , or η EPR‐PE /η PP ). With fibril formation, mechanical properties of the blends, especially the flexural modulus and notched impact strength, were significantly increased and the increase was more pronounced with the ternary blends. The fibrillar morphology and filled‐out particles for particle‐in‐matrix morphology. © 1996 John Wiley & Sons, Inc.