English Abstract |
Intercalation of Triazinethiol Molecules into Layered Double Hydroxide and Their Crosslinking Property for Halogenated Rubber Hidetoshi HIRAHARA Sumio AISAWA Satoshi TAKAHASHI Eiichi NARITA Department of Frontier Materials and Function Engineering, Graduate School of Engineering Hideki SAKURABA Yoichi Akiba Kunio MORI Department of Chemical Engineering, Iwate University, Morioka, Iwate, Japan Nippon Gomu Kyokaishi,(2006),79(5),261-266 Original Paper in Japanese Abstract Intercalation products of crosslinking agents such as 6-R-1,3,5-triazine-2,4-dithiol monoanion (R is a substituent) into Mg-Al layered double hydroxide (RTD/LDH) have been synthesized with the calcination-rehydration reaction using Mg-Al oxide precursors calcined at 500 for 2 h. RTD/LDH has been modified by anionic surface active agent (AS/RTD/LDH). These organic-inorganic nanohybrids have been characterized by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy. Vulcanization reaction of chlorinated acrylic rubber by AS/RTD/LDH has been investigated for the scorch time, the apparent cure rate constant and the induction period by a swing die rheometer at 170 . The basel spacing (003) was found to be 0.83 nm for the intercalated product of 1,3,5-triazine-2,4,6-trithiol monoanion (TT/LDH) and 0.81 nm for that of 6-dibutyl-1,3,5-triazine-2,4-dithiol monoanion (DB/LDH), 0.78 nm for the carbonate anion-intercalated LDH by XRD. The absorption peaks due to triazine ring (1580 cm ![]() ![]() ![]() (Received on September 30, 2005) (Accepted on February 14, 2006) Keywords: Triazine thiol, Layered double hydroxide, Nanohybrid, Chlorinated acrylic rubber, Scorch time, Curing, Induction period |
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