Quantitative Determination of the Microstructure and Composition of Crosslinked Rubber Blends

1997 ◽  
Vol 70 (2) ◽  
pp. 222-230 ◽  
Author(s):  
Emma Thorn-Csányi ◽  
Hans-Detlef Luginsland
Keyword(s):  
Carbon Black ◽  
Quantitative Determination ◽  
Length Distribution ◽  
Polymer Degradation ◽  
Mineral Oil ◽  
Sequence Length ◽  
Analytic Method ◽  
Rubber Blends ◽  
Different Types

Abstract Intermolecular metathetic polymer degradation opens up an analytic method to identify the quality and quantity of the components in blends of different types of rubber even if they are crosslinked and filled with carbon black, mineral oil, etc.. Furthermore the amount of soluble and insoluble additives can be determined. Moreover, metathetic degradation allows for determination of detailed information about the chemical microstructure (e.g. sequence length distribution of 1,2-butadiene and styrene units) of the rubbers used. This method is suitable for analysis of rubber components in tires.

Contribution to the Identification and Quantitative Determination of Carbon Black in Vulcanizates by Thermogravimetric Analysis

1976 ◽  
Vol 49 (4) ◽  
pp. 1060-1067 ◽  
Author(s):  
R. Pautrat ◽  
B. Metivier ◽  
J. Marteau
Keyword(s):  
Quantitative Analysis ◽  
Thermogravimetric Analysis ◽  
Carbon Black ◽  
Quantitative Determination ◽  
Elementary Particles ◽  
Operating Conditions ◽  
Different Types ◽  
Nitrile Rubbers ◽  
Good Repeatability

Abstract It has been verified that, in a number of cases, thermogravimetric analysis permits quantitative determination and identification of carbon blacks in the free state or in vulcanized compounds. The proper operating conditions can give sufficiently good repeatability and adequate precision for most routine analyses. As is the case in other methods for determining the loading, numerous difficulties were encountered with elastomers which graphitize on heating. However, quantitative analysis of black in nitrile rubbers remains possible, but the identification of different types of black is very difficult. The authors propose to continue this study, particularly into the new families of blacks, primarily into the function of the diameter of their elementary particles and their degree of structure.

Experimental Determination of Sequence Length Distribution of Hard Segments in Polyester-Polyurethanes

1994 ◽  
Vol 27 (26) ◽  
pp. 7650-7653 ◽  
Author(s):  
M. F. Barreiro ◽  
R. C. S. Dias ◽  
M. R. N. Costa
Keyword(s):  
Experimental Determination ◽  
Length Distribution ◽  
Sequence Length ◽  
Hard Segments

scholarly journals A quantitative determination of the distribution of carbon-black in mice organs

1978 ◽  
Vol 28 ◽  
pp. 153
Author(s):  
Shigeo Hokari ◽  
Kazuhito Kawata ◽  
Akira Matsumoto ◽  
Masanori Akiyama
Keyword(s):  
Carbon Black ◽  
Quantitative Determination

scholarly journals A comparison of shrinkage cracking between clay minerals by crack parameters using image analysis

2017 ◽  
Vol 20 (K4) ◽  
pp. 5-12
Author(s):  
Nhat Dai Vo
Keyword(s):  
Image Analysis ◽  
Quantitative Determination ◽  
Clay Mineral ◽  
The Other ◽  
Soil Types ◽  
Surface Cracks ◽  
Shrinkage Cracking ◽  
Different Types ◽  
Mineral Soils

Experiments have been conducted in laboratory to present a comparison of shrinkage cracking based on an observation and a quantitative determination of crack parameters. Photographs of surface cracks for three different types of clay mineral belonging to different groups – Bentonite, Kaolinite and Illite – are processed using image analysis. Each of soil types is tested with four sample thicknesses ranging from 5 to 20 mm at an interval of 5 mm. The measurements of crack parameters for clay mineral soils show that area and width of cracks in case of Bentonite are much larger than those while length of cracks appears to be slightly less than that in other cases. Number of cracks in case of Bentonite are smaller than those in cases of Kaolinite and Illite. Additionally, compared with Illite, area, length and width of cracks in case of Kaolinite are slightly larger while the other crack parameters seem to be same.

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