Inverse Gas Chromatography Investigation of Rubber Reinforcement by Modified Pyrolytic Carbon Black from Scrap Tires

2010 ◽  
Vol 49 (4) ◽  
pp. 1691-1696 ◽  
Author(s):  
Jie Zhou ◽  
Tianming Yu ◽  
Shengji Wu ◽  
Zhengmiao Xie ◽  
Yongrong Yang
Keyword(s):  
Gas Chromatography ◽  
Carbon Black ◽  
Inverse Gas Chromatography ◽  
Pyrolytic Carbon ◽  
Scrap Tires

Surface Energy of Commercial and Pyrolytic Carbon Blacks by Inverse Gas Chromatography

1997 ◽  
Vol 70 (5) ◽  
pp. 759-768 ◽  
Author(s):  
Hans Darmstadt ◽  
Christian Roy ◽  
Serge Kaliaguine ◽  
Helga Cormier
Keyword(s):  
Gas Chromatography ◽  
Surface Energy ◽  
Carbon Black ◽  
Surface Area ◽  
Inverse Gas Chromatography ◽  
Specific Interaction ◽  
Pyrolytic Carbon ◽  
Dispersive Component ◽  
Carbon Blacks ◽  
Carbonaceous Deposits

Abstract The surface properties of carbon blacks obtained by vacuum pyrolysis of different used rubbers (CBp) and of commercial carbon blacks were measured by inverse gas chromatography (IGC). The dispersive component of the surface energy (γsd) and the specific interaction (Isp) of the recovered CBp were lower than γsd and Isp of the virgin carbon black initially present in the rubber. However, γsd and Isp of recovered medium surface area carbon black and of virgin low-surface-area carbon black were comparable. During the pyrolysis, carbonaceous deposits are formed on the CBp surface. A correlation between γsd and Isp and the amount of the carbonaceous deposits, measured by ESCA, was found, suggesting that the formation of these deposits is responsible for the decrease of γsd and Isp.

Estimation of polyurethane-carbon black interactions by means of inverse gas chromatography

2013 ◽  
Vol 1314 ◽  
pp. 249-254 ◽  
Author(s):  
Beata Strzemiecka ◽  
Adam Voelkel ◽  
Jessica Donate-Robles ◽  
José Miguel Martín-Martínez
Keyword(s):  
Gas Chromatography ◽  
Carbon Black ◽  
Inverse Gas Chromatography

Filler-Elastomer Interactions. Part VIII. The Role of the Distance between Filler Aggregates in the Dynamic Properties of Filled Vulcanizates

1993 ◽  
Vol 66 (2) ◽  
pp. 178-195 ◽  
Author(s):  
Meng-Jiao Wang ◽  
Siegfried Wolff ◽  
Ewe-Hong Tan
Keyword(s):  
Gas Chromatography ◽  
Carbon Black ◽  
Inverse Gas Chromatography ◽  
Dynamic Properties ◽  
Random Packing ◽  
Attractive Potential ◽  
Carbon Blacks ◽  
Filled Rubber ◽  
Tan Δ

Abstract Based on the concepts of the occlusion of rubber and random packing of spheres whose volume is equivalent to that permeated by individual aggregates, an equation was deduced to estimate the distance between carbon-black aggregates in filled rubber. It was found that when the interaggregate distance reaches a critical point which is approximately identical for all carbon blacks investigated (furnace blacks), the elastic modulus measured at very low strain deviates from the modified Guth-Gold equation. Tan δ and resilience are mainly determined by the distance between aggregates. These phenomena are related to filler networking which is determined by the attractive potential and the distance between individual aggregates. Since the factor Sf, used to characterize the strength of secondary filler networks in hydrocarbon rubbers and measured by means of inverse gas chromatography, is approximately the same for all furnace blacks, the interaggregate distance seems to determine filler networking. A comparison of fillers with different Sf (graphitized vs. nongraphitized carbon blacks, carbon black vs. silica) shows that at the same interaggregate distance, a lower Sf leads to higher tan δ of the filled vulcanizates.

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