Zobrazeno 1 - 10
of 13
pro vyhledávání: '"A. E. OBERTH"'
Autor:
Adolf E. Oberth
Publikováno v:
Rubber Chemistry and Technology. 63:56-65
Equilibrium swelling of randomly crosslinked elastomers is in satisfactory agreement with a model that considers them to be aggregates of equivalent spheres whose diameter is proportional to Mc1/2. Solvation expands these spheres, the extent of expan
Autor:
Adolf E. Oberth
Publikováno v:
Rubber Chemistry and Technology. 62:55-67
Evidence presented in the foregoing study indicates a strong dependance of dilutability on the fraction of effective chains. There is some dependence on the level of crosslinking and, perhaps, on solvatibility of the polymeric network in question. Th
Autor:
A. E. Oberth
Publikováno v:
AIAA Journal. 16:919-924
Present methods to determine functionality of prepolymers are based upon a network theory proposed by Stockmayer. However, the Stockmayer functionality is weighted and becomes ambiguous for prepolymer mixtures with species of varying functionality. T
Autor:
A. E. Oberth, R. S. Bruenner
Publikováno v:
Transactions of the Society of Rheology. 9:165-185
Adhesion studies on spherical particles imbedded in elastomers have shown that cohesive failure of the binder phase always precedes dewetting. The latter is a sudden and irreversible process resulting in permanent damage to the system. Cohesive failu
Autor:
A. E. Oberth, R. S. Bruenner
Publikováno v:
Industrial & Engineering Chemistry Fundamentals. 8:383-388
Autor:
Adolf E. Oberth, Rolf S. Bruenner
Publikováno v:
The Journal of Physical Chemistry. 72:845-855
Autor:
Rolf S. Bruenner, Adolf E. Oberth
Publikováno v:
The Journal of Organic Chemistry. 31:887-891
Autor:
A. E. Oberth
Publikováno v:
Rubber Chemistry and Technology. 40:1337-1363
Effects of filler on mechanical properties of composites result from stress concentrations developed in the matrix and filler particles. Stress concentrations in filler particles relieve stress in the matrix which, under a given load, deforms less th
Autor:
A. E. Oberth
Publikováno v:
Rubber Chemistry and Technology. 44:152-165
The effect of loose chain ends on tensile properties and equilibrium swelling of crosslinked polyurethane rubbers is studied. As in plasticized elastomers, tensile strength and elastic modulus are reduced approximately by a factor (1−νE,P)2, where
Autor:
Rolf S. Bruenner, Adolf E. Oberth
Publikováno v:
Journal of Polymer Science Part A-2: Polymer Physics. 8:605-624
Incorporation of plasticizers or other inert, liquid diluents causes a profound weakening of rubbers. The modulus of elasticity and tensile strength decrease approximately with the square of the gel fraction v0 of rubber which was present at the time