Results 311 to 320 of about 1,228,624 (355)
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Reinforcement of elastomers by carbon black
Rubber Chemistry and Technology, 1977Abstract The reinforcement of elastomers by carbon black is governed by the morphology of the black and its physical and chemical interactions with the polymer. The latter are strongly affected by graphitization and surface oxidation. In modern rubber-grade carbon blacks strong bonding of the polymer to the carbon black surface is effected by ...
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Australian Journal of Chemistry, 1959
The varying ability of carbons to oxidize FeII, to produce H2O2 when exposed to air in an acid medium, and to form a latent photographic image, has been studied on a graded set of carbon blacks. Mechanisms are discussed for these three types of activity and it is shown how they agree with the phenol-lactone-chromene concept of carbon black chemistry.
K Eppinger, VA Garten
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The varying ability of carbons to oxidize FeII, to produce H2O2 when exposed to air in an acid medium, and to form a latent photographic image, has been studied on a graded set of carbon blacks. Mechanisms are discussed for these three types of activity and it is shown how they agree with the phenol-lactone-chromene concept of carbon black chemistry.
K Eppinger, VA Garten
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The Evaluation of Carbon Blacks
Rubber Chemistry and Technology, 1929Abstract In conclusion, it is shown that the “Delta A function” provides an instrument for the classification of carbon blacks as regards their usefulness to the rubber compounder. It is an index of widely inclusive character and not only indicates performance at optimum concentration, but also the range of effectiveness.
D. F. Cranor, H. A. Braendle
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Microstructure of Carbon Black
Rubber Chemistry and Technology, 1964Abstract Although the microstructure of carbon black has been under investigation for more than fifty years, there are still many aspects which are controversial and some which are virtually unexplored. The inherently low degree of crystallinity and the finely-divided state of carbon blacks have greatly hindered efforts to understand them.
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Characteristics of carbon blacks
Pigment & Resin Technology, 1972The various methods of manufacture of carbon blacks are considered, and the effects that the methods have on such properties as structure and agglomeration are ...
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Carbon, 1971
Abstract The determination of pore sizes and pore size distribution of carbon blacks by the t curve procedure requires a nonporous reference material with a heterogeneous surface. It could be shown that treatment of a fine thermal black with methane at 1050°C. leads to such a standard.
Andries Voet, Peter Aboytes
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Abstract The determination of pore sizes and pore size distribution of carbon blacks by the t curve procedure requires a nonporous reference material with a heterogeneous surface. It could be shown that treatment of a fine thermal black with methane at 1050°C. leads to such a standard.
Andries Voet, Peter Aboytes
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The Journal of Chemical Physics, 1941
This paper is concerned with the structure of extremely small crystallites of carbon deposited upon silica by the pyrolysis of methane. Electron diffraction patterns have been obtained from more than 100 carbon films, from some by the reflection method, and from others by transmission after removing the films from their supports with hydrofluoric acid.
Lester H. Germer, Addison H. White
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This paper is concerned with the structure of extremely small crystallites of carbon deposited upon silica by the pyrolysis of methane. Electron diffraction patterns have been obtained from more than 100 carbon films, from some by the reflection method, and from others by transmission after removing the films from their supports with hydrofluoric acid.
Lester H. Germer, Addison H. White
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Distribution of Carbon Black in SBR [PDF]
Rubber Chemistry and Technology, 1977 Abstract The interparticle distance between black aggregates in rubber was estimated by Fraunhofer diffraction with the mask of an electron micrograph of filled rubber. Up to 40 phr, the distribution of interpartiele distance has a sharp peak centered at 8000 A˚ with 20 phr and at 7000 A˚ with 40 phr.
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Rubber Chemistry and Technology, 1946 Abstract The importance of different types of colloidal carbon as reinforcing agents for the butadiene-styrene copolymer, GR-S, has been stressed in recent papers. It has been shown that, to a first approximation, the effect of carbon blacks in this type of synthetic rubber is similar to that in natural rubber, but it has been shown also that ...
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