Zobrazeno 1 - 10
of 227
pro vyhledávání: '"V. L. Folt"'
Autor:
V. L. Folt, R. W. Smith
Publikováno v:
Rubber Chemistry and Technology. 50:835-841
Hevea brasiliensis or natural rubber (NR) has been used for over 500 years. Until World War II, it was the basic raw material of the rubber industry. Since that time, the use of synthetic polymers has steadily increased, but the importance of NR has
Autor:
V. L. Folt
Publikováno v:
Polymer Engineering and Science. 2:285-293
With the advent of the newer catalyst systems it is now possible to prepare copolymers of ethylene and 1-olefins possessing useful physical properties. A wide range of physical properties is readily achieved through variations in the concentration an
Autor:
V. L. Folt
Publikováno v:
Rubber Chemistry and Technology. 44:12-28
Cis-polyisoprenes are readily crystallized under the pressure and orientation forces existing in a capillary rheometer. The ease at which crystallization can be effected is a complex function of the interrelationships existing among the temperature,
Autor:
D. J. Harmon, V. L. Folt
Publikováno v:
Rubber Chemistry and Technology. 46:449-463
Analysis of molecular size distribution of polymers by steric exclusion liquid chromatography (GPC) is well known. Problems exist, however. These problems involve copolymers and polymer blends. The objectives of the research were to develop methods o
Autor:
V. L. Folt, A. R. Berens
Publikováno v:
Polymer Engineering and Science. 9:27-34
The melt flow behavior of straight emulsion-polymerized PVC in a capillary extrusion rheometer has been found to depend upon both the molecular weight and the particle size of the sample. Observations of flow-rate, post-extrusion swell, and extrudate
Publikováno v:
Journal of Polymer Science Part B: Polymer Letters. 2:1009-1013
Autor:
A. R. Berens, V. L. Folt
Publikováno v:
Polymer Engineering and Science. 8:5-10
Publikováno v:
Rubber Chemistry and Technology. 44:1-11
Natural rubber is readily crystallized under the pressure and orientation forces existing in a capillary rheometer. The crystallization of natural rubber is readily effected over the temperature range covering commercial processing and fabricating te
Autor:
V. L. Folt, R. W. Smith
Publikováno v:
Rubber Chemistry and Technology. 46:1193-1209
The melt flow properties of certain elastomer blends are shown to be a function of the mixing history and the morphology of the blends. And, more significantly, the melt flow properties are found to be non-additive functions of the melt flow properti
Publikováno v:
Journal of Polymer Science Part B: Polymer Letters. 3:275-278