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Stress‐strain behavior of polychloroprene vulcanizates containing polymer‐gel particles
Author(s) -
Kawasaki Nobuhiro
Publication year - 1974
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.760140212
Subject(s) - materials science , neoprene , composite material , natural rubber , polymer , adhesion , deformation (meteorology) , matrix (chemical analysis) , polystyrene , ultimate tensile strength , stress (linguistics) , elongation , linguistics , philosophy
Abstract The equations of stress‐strain of gel‐filled polymer under large deformation were derived by using a simple model i.e. a sphere in a cubic matrix. The author finds for no adhesion between the phases:In case of perfect adhesion between the phases:where σ(α) is the stress of a blend at an elongation ratio of α, σ R (α) the stress of a rubber matrix at α, σ G (α G ) the stress of a gel component at α G , σ R (α R ) the stress of a rubber matrix at α R , ϕ the volume fraction of gel. The validity of Eq 1 was shown for the polychloroprene vulcanizates containing polystyrene‐gel which exhibits no adhesion with the polychloroprene matrix. This result shows the value of the model proposed here. The tensile strength of polychloroprene vulcanizates filled with polychloroprene‐gel at break is discussed by the use of Eqs 2–4 .