Study on thermal stability of tertiary pyridine resin |
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| Authors: | Y. Sato A. Funakoshi K. Okada M. Akiyoshi T. Matsunaga S. Koyama M. Ozawa T. Suzuki |
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| Affiliation: | (1) Research Core for Explosion Safety, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba-shi, Ibaraki 305-8565, Japan;(2) O-arai Research and Development Center, Japan Atomic Energy Agency, 4002 Narita-cho, O-arai-machi, Ibaraki 311-1393, Japan;(3) Tokai Research and Development Center, Japan Atomic Energy Agency, 2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan;(4) Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan |
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| Abstract: | The fundamental properties of tertiary pyridine resin (TPR) and its mixtures with methanol/HCl and HNO3 were investigated in order to evaluate the thermal stability of TPR and to determine the conditions necessary to avoid runaway reactions. Based on experimental DSC results, it was found that TPR with HCl was thermally stable, but strong decomposition was possible with TPR in the presence of HNO3. From the results of heating tests on the gram scale, TPR with HNO3 reacted violently under high temperature regardless of HNO3 concentration and presence or absence of methanol. However, it was considered that the violent exothermic reaction could be controlled by heating temperature. |
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