Results 21 to 30 of about 22,143 (295)

Vulcanization Kinetics of Natural Rubber Based On Free Sulfur Determination

open access: yesIndonesian Journal of Chemistry, 2013
The determination of free sulfur in the rubber vulcanizates provided significant representation of vulcanization reaction. In this research, the effects of vulcanization temperature, the mixing method of carbon black into rubber, the ingredients mixing ...
Abu Hasan   +3 more
doaj   +1 more source

Reversion free high-temperature vulcanization of cis-polybutadiene rubber with the accelerated-sulfur system

open access: yeseXPRESS Polymer Letters, 2020
The vulcanization of high diene elastomers with conventional or semi-efficient vulcanization systems exhibit reversion at a higher temperature due to the breakage of the polysulfidic crosslinks established in the vulcanized network.
S. Gopi Sathi, R. Stocek, O. Kratina
doaj   +1 more source

Vulcanized vortex

open access: yesPhysical Review D, 2009
9 pages, 5 figures, final version published in Physical Review ...
Youngone Lee, Inyong Cho
openaire   +2 more sources

Investigating the impact of nanoparticle geothermal silica loading on the mechanical properties and vulcanization characteristics of rubber composites

open access: yesCommunications in Science and Technology, 2023
The present study investigates the effects of nanoparticle geothermal silica (NGS) on the mechanical properties and vulcanization characteristics of rubber compounds with various filler loadings.
Muh Wahyu Syabani   +3 more
doaj   +1 more source

Selection of elastomeric membranes for the removal of volatile organics from water [PDF]

open access: yes, 1993
A wide range of homogeneous elastomeric membranes has been prepared using dicumylperoxide as a general cross-linking agent. The membranes have been used for both equilibrium sorption measurements and steady-state pervaporation experiments to study ...
Mulder, M.H.V.   +4 more
core   +2 more sources

Physical-Mechanical Properties of Chartwell® Coupling Agent-Treated Calcium Carbonate and Silica-Reinforced Hybrid Natural Rubber Composites

open access: yesCrystals, 2022
In this work investigated the possibility of applying a superficial treatment to ultra-fine calcium carbonate aiming to improve its interaction with the polymer chains of natural rubber so it does not act just as a filler.
Gabriel Deltrejo Ribeiro   +7 more
doaj   +1 more source

The Rise of the Vulcans [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
AbstractIn this introductory review, I summarize the path from the initial 1995 radial-velocity discovery of hot Jupiters to the current rich panoply of investigations that are afforded when such objects are observed to transit their parent stars. Forty transiting exoplanets are now known, and the time for that population to double has dropped below ...
openaire   +3 more sources

ESR investigation of NR and IR rubber vulcanized with different cross-link agents

open access: yeseXPRESS Polymer Letters, 2016
This study evaluates the formation of radical species in natural rubber (NR) and poly-isoprene rubber (IR) during the vulcanization process and the uniaxial deformation of the formed networks by means of Electron Spin Resonance (ESR). Vulcanization of NR
P. Posadas   +11 more
doaj   +1 more source

The role of natural rubber endogenous proteins in promoting the formation of vulcanization networks

open access: yese-Polymers, 2022
Non-rubber components are critical in the formation of the natural rubber (NR) vulcanization network, which leads to outstanding mechanical properties of NR. This study reports the effect of NR endogenous proteins (C-serum protein/lutoid protein [CSP/LP])
Liu Xiu-Xiu   +4 more
doaj   +1 more source

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