Now showing items 21-30 of 80
Time–temperature superposition of large-strain shear properties of the ethylene–propylene copolymer system
(Wiley Subscription Services, Inc., A Wiley Company, 1972-02)
The principle of time temperature superposition for some mechanical properties of polymers is well known, particularly where strains are on the order of 1% or less. For large strains the simple data transformation techniques ...
Large volume, high-performance applications of fibers in civil engineering
(Wiley Periodicals, Inc., 2002-01-18)
This article presents an overview of fiber applications in cementitious composites. The socio-economic considerations surrounding materials development in civil engineering in general, and fiber reinforced cementitious ...
Positronium formation in semicrystalline poly(ethylene terephthalate)
(Elsevier, 1994-01)
The probability of positronium (Ps) formation in semicrystalline poly(ethylene terephthalate) (PET), has been investigated by means of positron annihilation lifetime spectroscopy (p.a.l.s.). The p.a.l.s. data are correlated ...
Effect of composition on molecular alignment in polyethylene terephthalate copolymers
(Elsevier, 1982-04)
In this study molecular alignment in copolymers of polyethylene terephthalate (PET) and p-hydroxybenzoic acid (PHB) was examined by means of differential radial distribution function (DRDF) analysis of wide angle X-ray ...
Mechanical properties of in situ composites based on polycarbonate and a liquid crystalline polymer
(Elsevier, 1994-08)
The mechanical properties of in situ composites based on blends of polycarbonate and a liquid crystalline copoly(ester amide) (Vectra B950) have been studied as functions of the liquid crystalline polymer (LCP) concentration ...
Interpretation of dynamic scattering from polymer solutions
(Elsevier, 1980-08)
The theoretical results available for the interpretation of the dynamic scattering from polymer solutions have been re-examined. The scattering law S(q, t) is formulated using the eigenfunction expansion method and the ...
Toughening mechanisms in core-shell rubber modified polycarbonate
(Elsevier, 1990-12)
We have conducted a study of toughening mechanisms in rubber modified polycarbonate systems in order to evaluate the sequence of deformation events which improve fracture toughness. We conclude that cavitation of the rubber ...
Deformation behaviour of a polycarbonate plate with a circular hole: finite elements model and experimental observations
(Elsevier, 1988-09)
The unique and complex deformation behaviour of ductile polymers has received considerable attention in the polymer field. Much research has been conducted to study the yielding and post-yielding behaviour of polymers. In ...
Evaluating UV/H 2 O 2 exposure as a DEHP degradation treatment for plasticized PVC
(Hanser GardnerWiley Periodicals, Inc., 2014-08-15)
Millions of tons of plasticized poly(vinyl chloride) (PVC) materials are disposed every year. A biologically sustainable and green method for removal of toxic plasticizers from polymer systems after disposal is highly ...
Rate and temperature effects on the fracture toughness of a rubber-modified epoxy
(Elsevier, 1993-04)
A series of three-point bend fracture toughness tests was performed at various loading rates and temperatures on both rubber-modified and unmodified epoxy specimens. The fracture toughness of the modified samples was ...