|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
IJCT Vol.12(6) [November 2005] >
| Title: | Effect of surface modification of carbon black by 1,2 dihydroxy benzene and 1,2,3 trihydroxy benzene on a natural rubber-carbon black composite |
| Authors: | Ganguly, S
Bhattacharya, P
Banerjee, A N |
| Keywords: | Carbon black
natural rubber
surface modification
catechol
pyrogallol |
| Issue Date: | Nov-2005 |
| Publisher: | CSIR |
| IPC Code: | C08C1/02 |
| Abstract: | Present study
deals with an attempt to modify the surface chemistry of N330 carbon black by
the interaction with aromatic derivatives. Two aromatic polyhydroxy compounds,
namely 1,2 dihydroxy benzene (catechol) and 1,2,3 trihydroxy benzene
(pyrogallol) are chosen as surface modifiers. It has been shown that the lone
pair of electrons of the oxygen has contributed to the higher interaction with
existing functional groups of carbon black giving an increased crosslinking density.
The surface modified carbon black when compounded with natural rubber has
produced rubber compounds with improved rheological and visco-elastic
properties. It has been noted that dynamic mechanical properties like heat
build-up and hysteresis loss have also been improved and in some cases improved
abrasion loss properties have been achieved. The results indicate that there
has been as enhancement of filler-polymer interaction with a reduction of
filler-filler networking. The effect of increased crosslinking phenomenon and
filler-polymer interaction are more pronounced for catechol than that for pyrogallol. |
| Page(s): | 695-700 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.12(6) [November 2005]
|
|
