Dr. Chantara T. Ratnam

Dr. Chantara  T. Ratnam |Clyto Access

Senior Research Officer/Manager, Malaysian Nuclear Agency , Mlayasia


Expertise: Radiation processing of Polymer blends and composites,Radiation Compatible Polymers, Nanocomposites and Recycling of Polymers


Dr. Chantara  T. Ratnam is a senior research Scientist and head of “Polymer blend and Composite” group at Malaysian Nuclear Agency, CT Ratnam has excelled in R&D related to peaceful applications of nuclear technology in the field of radiation processing of polymers. Her research interests include radiation processing of polymer blends and composites, radiation compatible polymers, nanocomposites and recycling of polymers. Since joining Malaysian Nuclear Agency in 1992, CT Ratnam lead about 20 R&D projects which totals about RM 1.5 Million. Her commitment and dedication has driven her to numerous successes both nationally and internationally, with some of her findings are in the process of commercialisation. Amongst her achievement in R&D include formulating  radiation compatible polymers for medical applications, pioneering research on surface coating of rubber  gloves with hydrogel by using radiation technique, developing radiation crosslinkable polymer blend formulations for use in the automobile industry and developing polymer compounds from used rubbers (recycle  rubber). Eleven of her research findings have been patented. Publishing over 200 scientific articles, her  research on radiation processing of polymers has won more than 46 awards including the top most award, Grand  Prix of the 34TH International Exhibition of Inventions New Techniques and Products, Geneva, 2006. Besides  that she was also served as invited, keynote and plenary speaker for more than 36 international conferences. She is currently in editorial board of eight journals and refereed more than100 ISI/Scopus indexed journal articles, external examiner for 27 post graduates, field Supervisor for 41 post graduates (17 PhD,24 MSc) & more than 100 Undergraduate projects. She is recognised as TOP RESEARCH SCIENTIST MALAYSIA by Academy Sciences of Malaysia.



Title: Radiation Processing Of Waste Polymers


Management of solid waste is an important problem, which is becoming progressively worse as a by product of continuing economic growth and development. Development of technologies for reducing polymeric waste, which are acceptable from the environmental standpoint, and which are cost effective has proven to be a difficult challenge due to complexities inherent in the reuse of polymers The ability of ionizing radiation to alter the structure and properties of bulk polymeric materials, and the fact that it is applicable to essentially all polymer types, irradiation holds promise for impacting the polymer waste problem. Radiation Processing is the large-scale use of such ionizing radiation for modifying and synthesizing materials. In view of recycling of polymers, the main possibilities for use of radiation include enhancement of the mechanical properties and performance of recovered materials or polymer blends, principally through cross linking, or through surface modi?cation of different phases being combined; treatment causing or enhancing the decomposition of polymers, particularly through chain scission, leading to recovery of either low molecular weight mixtures, or powders, for use as chemical feedstock’s or additives and production of advanced polymeric materials designed for environmental compatibility. Radiation processing represents a minor yet significant technology in recycling of waste polymers applications. This paper provides an overview of radiation processing of waste polymers with emphasis on current advancement in radiation modification of waste polymers. The recent developments on radiation modification of Ethylene Vinyl Acetate(EVA) /waste arylonitile-butadiene rubber (w-NBR) will be discussed in detail.


Related Conferences :

World Summit on Recycling and Environmental Management