2. M3terials llnd Methods
2.1 Materials
Natural rubber (NR: STR5L, manufactured by
Chalong Latex Industry Co., Ltd.) was used in this study.
Three chosen conductive tillers are carbon black (CB: N330,
supplied by Southern Excel Co., Ltd) with individual particle
size of 26-30 nm, aluminum and Sliver powders (manufactured
by Siam Prodex Co., Ltd.) with particle size of 13-20
~m and 6-10 ).lm, respectively.