CSP-18 Print Version

PROCEEDINGS 18/P Radiation Technology in Emerging Industrial Conference & Symposium Papers Applications Proceedings of a symposium held in Beijing, China, 6–10 November 2000 The originating Section of this publication in the IAEA was: Industrial Applications and Chemistry Section Division of Physical and Chemical Sciences International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna, Austria RADIATION TECHNOLOGY IN EMERGING INDUSTRIAL APPLICATIONS IAEA, VIENNA, 2003 IAEA-CS-18/CD ISBN 92–0–111603–9 ISSN 1562–4153 © IAEA, 2003 Printed by the IAEA in Austria September 2003 FOREWORD In many industrial applications radiation processing has proven to be a technology of choice either because of its economic competitiveness or its technical superiority. Although the chemical effects of ionizing radiation have been known for more than a century, its industrial applications became possible only after the availability of reliable gamma sources and powerful electron accelerators during the last couple of decades. The programmes of the International Atomic Energy Agency (IAEA) in radiation processing are implemented through the Department of Nuclear Sciences and Applications and the Department of Technical Co-operation. The IAEA has been active in this field for many years, contributing to new developments, training, promotion and transfer of technology. In September 1997, the IAEA held an international symposium in Zakopane, Poland on the “Use of radiation technology for the conservation of environment” where the status of current developments and of applications of radiation processing in the control of environmental pollution was reviewed (IAEA-TECDOC-1023, 1998). Recent developments and achievements in various aspects of radiation processing have been assessed continuously through the organization of consultants meetings, advisory group meetings and research co-ordination meetings. Worldwide growing interest in the use of radiation technology in various new industrial applications, as exemplified by the reports and presentations made at these meetings, has led the IAEA to organize a symposium to cover every aspect of radiation processing and, exclusively, the emerging industrial applications of radiation technology. The International Symposium on Radiation Technology in Emerging Industrial Applications was convened in November 2000 in Beijing, China. Its main purpose was to bring scientists, technologists, industrialists and regulatory authorities together with a view of exchanging information and reviewing the status of current developments and applications, and discuss potential future trends and developments. A further objective was to consider potential needs of developing countries in terms of applied research in radiation processing and mechanism for promotion and transfer of the technology. The scientific programme covered a wide range of different applications of radiation technology, such as radiation processing of synthetic polymers, natural polymers, pharmaceutical applications, hydrogels and membranes, environmental applications, process control, facilities and international developments. The most recent developments in all these fields were elaborated by 52 oral and 25 poster presentations. Two hundred and sixteen participants representing 32 Member States attended the symposium. The IAEA gratefully acknowledges the generous assistance of the Government of the People’s Republic of China and the China Isotope and Radiation Association, Beijing, in providing technical, scientific and administrative support. The IAEA officers responsible for this publication were O. Güven and A.G. Chmielewski of the Division of Physical and Chemical Sciences. EDITORIAL NOTE This publication has been prepared from the original material as submitted by the authors. The views expressed do not necessarily reflect those of the IAEA, the governments of the nominating Member States or the nominating organizations. The use of particular designations of countries or territories does not imply any judgement by the publisher, the IAEA, as to the legal status of such countries or territories, of their authorities and institutions or of the delimitation of their boundaries. The mention of names of specific companies or products (whether or not indicated as registered) does not imply any intention to infringe proprietary rights, nor should it be construed as an endorsement or recommendation on the part of the IAEA. The authors are responsible for having obtained the necessary permission for the IAEA to reproduce, translate or use material from sources already protected by copyrights. CONTENTS Summary ..................................................................................................................................................1 Radiation crosslinking of polymer blend system: radiation degradative polymer blended with radiation crosslinking polymer.................................................................................2 Sun Jia Zhen Polyethylene blends for heat shrinkable product fabrication ...................................................................8 I. Legocka, Z. Zimek, K. Mirkowski, M. Zielonka Thermal and radiation degradation of PVC materials............................................................................18 B. Bartoníček, V. Hnát, B. Otáhal, V. Plaček The factors affecting EB curing of epoxy resin in the presence of cationic initiator .............................23 Huiliang Wang, Wenxiu Chen, Jianwen Bao Electron processing of advanced composites for aerospace applications ..............................................30 V. Lopata, A. Puzianowski, C.B. Saunders, J.W. Barnard, T.M. Stepanik Development of SiC/SiC composites from precursor polymer by radiation application....................................................................................................................................35 M. Sugimoto, Y. Morita, S. Tanaka, T. Seguchi, M. Itoh, K. Okamura Preparation of gypsum/polymer composites using gamma radiation.....................................................41 Z. Ajji, H. Al-Kassiri Radiation processing of natural polymers for industrial and environmental applications .....................46 A.B. Majali, S. Sabharwal, Y.K. Bhardwaj, S.P. Ramnami Properties of radiation modified sago starch and its potential as biodegradable foams.........................51 Z. Ghazali, K.Z. Dahlan, B. Wongsuda, S. Idris, S. Kharidah Effect of acid additives on grafting efficiency and water absorption of hydrolyzed cassava starch grafted polymers...................................................................................................59 S. Kiatkamjornwong, K. Mongkolsawas, M. Sonsuk Recent progress in RVNRL....................................................................................................................65 M.E. Hague, K. Makuuchi, H. Mitomo, K. Ikeda, F. Yoshii, T. Kume Improvement of RVNR Latex film properties by using fumed silica and hydroxy appatite as rubber particle binder .................................................................................................71 C. Siri-Upathum, N. Na Ranong, M. Sonsuk, A. Thiengchanya Natural anti-oxidants for radiation vulcanized natural rubber latex.......................................................78 L.V. Abad, L.S. Relleve, C.T. Aranilla, A.K. Aliganga, C.M. San Diego, A.M. dela Rosa Electron processing for the viscose process: An economic analysis......................................................85 T.M. Stepanik, J.W. Barnard Radiation processing of polysaccharides for agriculture........................................................................90 T. Kume Radiation processing technology for production of plant growth promoter from brown seaweed and plant protector from shrimp shell ................................................................95 N.Q. Hien, L.Q. Luan, P.T.L. Ha, T.T. Hanh, T.T. Thuy, L. Hai, F. Yoshii, K. Makuuchi, T. Kume Biological activities of radiation degraded carrageenan.........................................................................98 L.S. Relleve, L.V. Abad, C.T. Aranilla, A.K. Aliganga, A.M. dela Rosa, F. Yoshii, T. Kume, N. Nagasawa Pre-irradiation grafting polymerization of DMAEMA onto cellulose fabrics .....................................109 Lu Jun, Yi Min, Li Jiuqiang, Ha Hongfei Radiolysis of chloramphenicol and its eye ointment during gamma sterilisation................................115 L. Hong, H. Altorfer Gamma radiation induced effect in sodium alginate as a component for capsule formation...............120 M. Rapado Paneque, I. Ceausoglu, D. Hunkeler Fungicidal effect of irradiated chitosan................................................................................................126 T.L. Ha, T.T. Thuy, N.Q. Hien, T. Kume Electron beam technology for production of new anti-tuberculosis drug ............................................130 V.A. Shkurupiy, Y.N. Kurunov, N.N. Kurunova, A.V. Troitskiy, O.V. Grishin, E.P. Gulyaeva, L.A. Bogdanova, V.L. Auslender, M.V. Korobeinikov Permeability control of metal ions through temperature and pH-sensitive copolymer gel membranes .........................................................................................................136 M. Yoshida, Y. Maekawa, J. Hendri, R. Kataka Thermally stable and highly sensitive polymer membranes for ion and electron beam radiation............................................................................................................................143

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