Stress induced cracks in carbon black filled elastomers probed by atomic force microscopy

2008 ◽  
Vol 104 (12) ◽  
pp. 123518 ◽  
Author(s):  
A. Mdarhri ◽  
P. Elies ◽  
C. Brosseau
2017 ◽  
Vol 8 ◽  
pp. 982-988 ◽  
Author(s):  
Santa Stepina ◽  
Astrida Berzina ◽  
Gita Sakale ◽  
Maris Knite

By using a solvent-based method composites of ethylenevinyl acetate copolymer and carbon black (EVA–CB) were synthesized for sensing BTEX (benzene, toluene, ethylbenzene and xylene) vapours. The composites were characterized using atomic force microscopy (AFM) in an electroconductive mode. Gas sensing results show that EVA-CB can reproducibly detect BTEX and that the response increases linearly with vapour concentration. Compared to gas-sensing measurements of gasoline vapours, the responses with toluene and ethylbenzene are different and can be explained by varying side chains of the benzene ring.


Carbon ◽  
2001 ◽  
Vol 39 (2) ◽  
pp. 314-318 ◽  
Author(s):  
J. Ravier ◽  
F. Houzé ◽  
F. Carmona ◽  
O. Schneegans ◽  
H. Saadaoui

2006 ◽  
Vol 79 (11) ◽  
pp. 509-515 ◽  
Author(s):  
Hideyuki NUKAGA ◽  
So FUJINAMI ◽  
Hiroyuki WATABE ◽  
Ken NAKAJIMA ◽  
Toshio NISHI

1995 ◽  
Vol 68 (4) ◽  
pp. 652-659 ◽  
Author(s):  
S. Maas ◽  
W. Gronski

Abstract The changes of the filler morphology of SBR vulcanizates loaded with 10 phr carbon black (N234 and N990) subjected to large strains were studied by Atomic Force Microscopy and image analysis. It was found that the filler particles tend to align in the force field. The average distance of the filler particles at the surface in the direction parallel and perpendicular to the strain direction is much smaller then according to affine deformation. The measurements give evidence of the inhomogeneous deformation of the rubber matrix and demonstrate the onset of failure at large deformation.


2003 ◽  
Vol 76 (1) ◽  
pp. 60-81 ◽  
Author(s):  
A. Lapra ◽  
F. Clément ◽  
L. Bokobza ◽  
L. Monnerie

Abstract Understanding the way fillers can reinforce elastomers requires, among other things, requires a precise description of the behavior of filler aggregates when a macroscopic strain is applied. In this study, Atomic Force Microscopy was used to investigate samples of SBR and PDMS filled with silica. The samples were stretched uniaxially at different strain values (up to 145%) and imaged by Atomic Force Microscopy. The distances between aggregates were followed at the different strains, which allowed calculation of the local strains and comparison of the values obtained with the macroscopic strain value. The main results are (i) that the strain field is highly heterogeneous, depending on the local concentration of filler and (ii) that the strain undergone by elastomer chains can be very high locally, in the regions where distances between aggregates are very short.


2014 ◽  
Vol 496-500 ◽  
pp. 106-109 ◽  
Author(s):  
Qing Shan Fu ◽  
Jian Chen ◽  
Zu Xiao Yu ◽  
Rui Song Yang

Carbon blacks are used universally as fillers in polymer matrix for mechanical, electronical and thermal properties improvement. Plenty of studies show that the structure and surface properties affect the function of carbon blacks in polymer matrix intensively. However, the reinforcing mechanism is still controversial. In this study, we studied the structure of three carbon blacks by Dibutyl phthalate (DBP) absorption and atomic force microscopy (AFM) and analyzed the absorption/desorption forces of the three carbon blacks surface by force-distance curves. The results show that the carbon black with relatively high structure possesses more branches and bigger aggregation morphologies and shows the highest surface absorption/desorption forces, which may increase the reaction between carbon black and polymer matrix.


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