Influence of air and seawater on fatigue behavior of natural rubber

2015 ◽  
pp. 419-426 ◽  
Keyword(s):  
Natural Rubber ◽  
Fatigue Behavior

Fatigue Behavior in Filled Natural Rubber: Study of the Mechanical Damage Dynamics

2011 ◽  
Vol 488-489 ◽  
pp. 666-669 ◽  
Author(s):  
Luisa Munoz ◽  
Loïc Vanel ◽  
Olivier Sanseau ◽  
Paul Sotta ◽  
Didier Long ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Crack Path ◽  
Fatigue Behavior ◽  
Mechanical Damage ◽  
Rubber Matrix ◽  
Rupture Dynamics ◽  
Complex Process ◽  
Long Time ◽  
Damage Dynamics ◽  
Filler Particles

Rupture dynamics in reinforced elastomers is a much more complex process than in pure elastomers due to the intrinsic heterogeneous mixture of a rubber matrix with filler particles at submicronic scale. In the case of natural rubber, an additional source of heterogeneity is the strain-crystallization effect. How rupture dynamics and crack path are affected by filler particles and strain-crystallization is still a matter of debate. Actually, understanding how rupture dynamics and crack path are correlated to each other is probably an important key in order to improve long time resistance of reinforced rubbers.

Dynamic Fatigue Behavior of Natural Rubber Reinforced with Nanoclay and Carbon Black

2011 ◽  
Vol 50 (8) ◽  
pp. 1646-1657 ◽  
Author(s):  
Liangliang Qu ◽  
Yijing Nie ◽  
Guangsu Huang ◽  
Gengsheng Weng ◽  
Jinrong Wu
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Fatigue Behavior ◽  
Dynamic Fatigue

scholarly journals Fatigue behavior of natural rubber in marine environment: Comparison between air and sea water

2015 ◽  
Vol 65 ◽  
pp. 462-467 ◽  
Author(s):  
Pierre-Yves Le Gac ◽  
Mael Arhant ◽  
Peter Davies ◽  
Alan Muhr
Keyword(s):  
Natural Rubber ◽  
Marine Environment ◽  
Sea Water ◽  
Fatigue Behavior

The study of fatigue behavior of thermally aged rubber based on natural rubber and butadiene rubber

2017 ◽  
pp. 365-370
Author(s):  
O. Kratina ◽  
R. Stoček ◽  
B. Musil ◽  
M. Johlitz ◽  
A. Lion
Keyword(s):  
Natural Rubber ◽  
Fatigue Behavior ◽  
Butadiene Rubber

Uniaxial fatigue behavior of thermal-aged cerium oxide-modified vulcanized natural rubber

2021 ◽  
Author(s):  
Yu Qiao ◽  
Chongrui Ji ◽  
Yanping Wang ◽  
Wuwei Duan ◽  
Zheng Pan ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Cerium Oxide ◽  
Fatigue Behavior

Cut Growth and Fatigue of Rubbers. II. Experiments on A Noncrystallizing Rubber

1965 ◽  
Vol 38 (2) ◽  
pp. 301-313 ◽  
Author(s):  
G. J. Lake ◽  
P. B. Lindley
Keyword(s):  
Natural Rubber ◽  
Fatigue Failure ◽  
Fatigue Behavior ◽  
Time Dependent ◽  
Fourth Power ◽  
Dynamic Conditions ◽  
Tensile Fatigue ◽  
Different Temperatures ◽  
Tearing Energy ◽  
Energy Theory

Abstract Tensile fatigue failure of a gum vulcanizate of noncrystallizing SBR can be accounted for by the growth of small flaws initially present in the rubber. Fatigue of crystallizing natural rubber was shown in Part I to be attributable to the same cause. Cut growth results are interpreted in terms of the tearing energy theory of Rivlin and Thomas. SBR exhibits cut growth under both static and dynamic conditions; in each case the rate is approximately proportional to the fourth power of the tearing energy. Variation of the dynamic cut growth rate with frequency can be explained by the summation of a time-dependent static component of growth and a cyclic component not dissimilar to that occurring in natural rubber. Fatigue failure, under both static and dynamic conditions, is predicted from the cut growth results. These predictions are found to account quantitatively for experimentally observed fatigue lives when a suitable value is assumed for the initial flaw size. Fatigue lives at different temperatures correlate well with cut growth results obtained by Greensmith and Thomas over the same temperature range. The results are compared to those obtained previously for natural rubber, and possible reasons for the differences in fatigue behavior of crystallizing and non-crystallizing rubbers are discussed.

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.

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