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The dynamic properties of carbon black loaded natural rubber vulcanizates. Part II
Author(s) -
Payne A. R.
Publication year - 1962
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.1962.070062115
Subject(s) - carbon black , natural rubber , composite material , materials science , filler (materials) , modulus , swelling , dynamic modulus , shear modulus , spheres , carbon fibers , dynamic mechanical analysis , composite number , polymer , physics , astronomy
The dynamic shear modulus at very high strains, ( G ∞ ), of carbon black filler loaded vulcanizates is regarded as due to the product of two factors: ( a ) a hydrodynamic interaction due to filler particles, and ( b ) a second factor for which evidence is given suggesting that it arises from a few strong linkages which are known to link filler particles to the matrix. Experimentally a measure of ( a ) has been obtained from model vulcanizates using glass spheres as the filler, and of ( b ) from equilibrium swelling measurements on rubber vulcanizates containing carbon black. Quantitatively, the difference between the shear modulus of the pure gum vulcanizate, G pure gum , and G ∞ can be explained by these measurements.