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14 Jul 01:21

[ASAP] Excited-State Dynamics of Pyrene Incorporated into Poly(substituted methylene)s: Effects of Dense Packing of Pyrenes on Excimer Formation

by Tomohisa Takaya, Tatsuya Oda, Yuki Shibazaki, Yumiko Hayashi, Hiroaki Shimomoto, Eiji Ihara, Yukihide Ishibashi, Tsuyoshi Asahi, Koichi Iwata

TOC Graphic

DOI: 10.1021/acs.macromol.8b01060
19 Aug 14:23

Enhanced mechanical and thermal properties of SBR composites by introducing graphene oxide nanosheets decorated with silica particles

Publication date: November 2017
Source:Composites Part A: Applied Science and Manufacturing, Volume 102
Author(s): Zijin Liu, Yong Zhang
Synergistic enhancement of fillers in the polymer matrix has emerged as a subject of scientific and industrial interest. A hybrid with the silica decorating on GO surface (SiO2@GO) was fabricated by an electrostatic self-assembly method, and its morphology, structure and composition were characterized. GO, silica, silica/GO mixture (SiO2-GO), and SiO2@GO were separately filled in styrene-butadiene rubber (SBR) to obtain composites. SBR/SiO2@GO (100/20) composite exhibited the best performance, and its tensile strength increased by 308% compared with that of SBR. This is due to SiO2@GO was uniformly embedded in the SBR matrix brought by the synergistic dispersion of silica and GO. SiO2@GO acted as the barrier in SBR composites, and increased the temperature at 50% weight loss for SBR/SiO2@GO (100/20) by 13.1°C compared to SBR. Anchoring silica on GO surface is an effective way to develop various high-performance rubber composite materials with good potential in industrial applications.