scholarly journals Gaussian Expansion of Spin-spin Relaxation for Mastication of Natural Rubber

2010 ◽  
Vol 46 (9) ◽  
pp. 326-331
Author(s):  
Hitoshi IWABUK ◽  
Koji MURAKAMI ◽  
Sigeki HIKASA ◽  
Katsushi NISH
Keyword(s):  
Natural Rubber ◽  
Spin Relaxation

Polystyrene-Natural-Rubber Mixtures: Preparation and Properties

1993 ◽  
Vol 66 (1) ◽  
pp. 14-18
Author(s):  
S. Valić ◽  
M. Topić ◽  
M. Andreis ◽  
F. Ranogajec ◽  
Z. Veksli ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Spin Relaxation ◽  
Thermoplastic Elastomers ◽  
Depolarization Current ◽  
Thermally Stimulated Depolarization Current ◽  
Polystyrene Surface ◽  
Mechanical Measurements ◽  
Relaxation Measurements ◽  
Thermally Stimulated Depolarization

Abstract Thermoplastic elastomers were prepared from mixtures of polystyrene and natural-rubber latexes. The mechanical measurements, thermally stimulated depolarization current measurements, and NMR spin-spin relaxation measurements have shown that the properties of prepared thermoplastic elastomers depend on the composition and the interface created by changing the size of the accessible polystyrene surface.

Extraction and identification of fillers and pigments from pyrolyzed rubber and tire samples

1996 ◽  
Vol 54 ◽  
pp. 174-175
Author(s):  
P. Sadhukhan ◽  
J. B. Zimmerman
Keyword(s):  
Zinc Oxide ◽  
Electron Microscope ◽  
Carbon Black ◽  
Natural Rubber ◽  
Transmission Electron Microscope ◽  
Rolling Resistance ◽  
Synthetic Polymers ◽  
Nitrogen Atmosphere ◽  
Transmission Electron ◽  
Curing Agents

Rubber stocks, specially tires, are composed of natural rubber and synthetic polymers and also of several compounding ingredients, such as carbon black, silica, zinc oxide etc. These are generally mixed and vulcanized with additional curing agents, mainly organic in nature, to achieve certain “designing properties” including wear, traction, rolling resistance and handling of tires. Considerable importance is, therefore, attached both by the manufacturers and their competitors to be able to extract, identify and characterize various types of fillers and pigments. Several analytical procedures have been in use to extract, preferentially, these fillers and pigments and subsequently identify and characterize them under a transmission electron microscope.Rubber stocks and tire sections are subjected to heat under nitrogen atmosphere to 550°C for one hour and then cooled under nitrogen to remove polymers, leaving behind carbon black, silica and zinc oxide and 650°C to eliminate carbon blacks, leaving only silica and zinc oxide.

Dynamic and static muon-spin relaxation observed above and below the spin-crossover in Fe(II) complexes

2004 ◽  
Vol 114 ◽  
pp. 601-605 ◽  
Author(s):  
S. J. Blundell ◽  
T. Lancaster ◽  
F. L. Pratt ◽  
C. A. Steer ◽  
M. L. Brooks ◽  
...  
Keyword(s):  
Spin Relaxation ◽  
Spin Crossover ◽  
Muon Spin ◽  
Muon Spin Relaxation

SPIN-SPIN RELAXATION OF Yb3+IN PARAMAGNETIC DyAlO3, TbAlO3AND HoAlO3

1996 ◽  
Vol 40 (C2) ◽  
pp. C2-253-C2-254
Author(s):  
J.A. Hodges ◽  
P. Imbert
Keyword(s):  
Spin Relaxation

SPIN RELAXATION SPECTRA OF Γ8 QUARTET

1976 ◽  
Vol 37 (C6) ◽  
pp. C6-85-C6-88
Author(s):  
G. K. SHENOY ◽  
B. D. DUNLAP ◽  
S. DATTAGUPTA ◽  
L. ASCH
Keyword(s):  
Spin Relaxation ◽  
Relaxation Spectra
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