화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.1206
발표분야 재료
제목 Properties of rubber nanocomposites filled by activated carbon blacks
초록 Rubber reinforcing carbon blacks were prepared by physical activation in CO2 to different degrees of burn-off. The mechanical properties indicating the reinforcement of SBR vulcanizates filled by activated carbon blacks, such as tensile strength, 300% modulus and elongation were determined. SBR rubber composites filled by carbon blacks after CO2 activation with specific surface area of 196 m2/g exhibited overall improved mechanical properties than that having raw black. But the mechanical properties of rubber composites decreased at higher filler loading ratio with further activation due to the difficulty in obtaining uniform filler-rubber interaction with much higher BET surface area. Electromagnetic Interference (EMI) shielding characteristics and surface resistivity of carbon black/SBR composites measured in this study explained that it is easier for carbon blacks with high specific surface area to form continuous conductive filler network in the rubber matrix.
저자 아오거여우, 김명수, 후취안리
소속 명지대
키워드 carbon blacks; CO2 activation; rubber reinforcement; surface resistivity; EMI
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