Rafailovich, Miriam; Si, Mayu; Sokolov, Jonathan; Otaigbe, Joshia; Yudin, Vladimir E.
American Physical Society, APS March Meeting, March 13-17, 2006, abstract #C1.008
In recent years, driven by the health issues and the incurred banning policy of bromine compounds, it is a great demand to find an alternate to replace brominated compounds in polymer flame retardant industry.
High impact polystyrene (HIPS), a popular materials widely used for electrical appliances and electronic instruments, attracts extensive attention for its dominant flame retardant agent, decabromodiphenyl ether. Here we propose a novel idea to prepare non-halogen HIPS self-extinguishing composites based on the combination of phosphorus compounds and clay.
The combustion behavior was thoroughly investigated by UL 94 V-0, LOI, and cone calorimeter measurements. The addition of Cloisite 20A dramatically decreases the value of LOI and the resulted HIPS composites could not pass UL 94 V-0.
On the other hand, the introduction of thermal stable clay significantly increases the value of LOI and the corresponding HIPS composites can successfully self-extinguish. These results strongly demonstrate that the thermal stability of clay is the key factor to determine the final flame retardant performance.
The synergy between the clay and phosphorus compounds is further studied.
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fameous charcters
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Jonathan Otaigbe
polymer science chemicals,Material engneering
fameous charcters:
Dr. Joshua Otaigbe joined The University of Southern Mississippi faculty in 2002 after a successful career at Iowa State University where he was a tenured faculty member in both Depts. of Chemical Engineering and Materials Science & Enginering, and Leader of Polymers and Composite Research Group. Otaigbe joined the Iowa State University faculty in 1994.
Before joining Iowa State, he worked as a Project Leader for Corning Incorporated in New York. Earlier, he held academic positions at the University of Alberta, Canada, and University of Benin in Nigeria. Otaigbe earned his B.S. degree in industrial chemistry (1979) in Nigeria and the Ph.D. Degree in polymer science and engineering (1984) from the University of Manchester (UMIST), England.
In 2002, Dr. Otaigbe was elected a Fellow of the United Kingdom Institute of Materials, Minerals & Mining for contributions of international significance to the polymer and composite materials field. This is the highest honor bestowed upon professional members of this international science and engineering institute. He is also a Fellow of Society of Plastics Engineers (SPE) and in 2001, he was elected to the SPE Board of Directors, Engineering Properties & Structure Division (EPSDIV). Professor Otaigbe was awarded a visiting professorship for the Summer of 2003 at the Swiss Federal Institute of technology (ETH-Zurich) in Zurich, Switzerland.
Dr. Otaigbe's research is in the areas of polymer engineering and materials science. His research blends chemical engineering sciences with materials structure and property principles to understand and improve processes for advanced materials. He is also actively involved in university-industry partnerships to solve industrially relevant problems. These problems are often at the boundaries between established disciplines or in areas combining many disciplines that may ultimately lead to discovery. Through careful mentoring, he is empowering young engineers to develop the discipline to continue learning, and encouraging them to take creativity excursions outside the imagined constraints of their specialized areas that may ultimately lead to most exciting opportunities for the future.
Dr. Otaigbe received the prestigious U.S. National Science Foundation CAREER Award and the Best Paper-Polyolefins Award from the Thermoplastic materials and Foams Division of the Society of Plastics Engineers, USA. He was listed as an honored member in Who's Who of American Inventors (1998-1999 edition)
Labels: fameous charcters , Jonathan Otaigbe
Dr. Joshua Otaigbe joined The University of Southern Mississippi faculty in 2002 after a successful career at Iowa State University where he was a tenured faculty member in both Depts. of Chemical Engineering and Materials Science & Enginering, and Leader of Polymers and Composite Research Group. Otaigbe joined the Iowa State University faculty in 1994.
Before joining Iowa State, he worked as a Project Leader for Corning Incorporated in New York. Earlier, he held academic positions at the University of Alberta, Canada, and University of Benin in Nigeria. Otaigbe earned his B.S. degree in industrial chemistry (1979) in Nigeria and the Ph.D. Degree in polymer science and engineering (1984) from the University of Manchester (UMIST), England.
In 2002, Dr. Otaigbe was elected a Fellow of the United Kingdom Institute of Materials, Minerals & Mining for contributions of international significance to the polymer and composite materials field. This is the highest honor bestowed upon professional members of this international science and engineering institute. He is also a Fellow of Society of Plastics Engineers (SPE) and in 2001, he was elected to the SPE Board of Directors, Engineering Properties & Structure Division (EPSDIV). Professor Otaigbe was awarded a visiting professorship for the Summer of 2003 at the Swiss Federal Institute of technology (ETH-Zurich) in Zurich, Switzerland.
Dr. Otaigbe's research is in the areas of polymer engineering and materials science. His research blends chemical engineering sciences with materials structure and property principles to understand and improve processes for advanced materials. He is also actively involved in university-industry partnerships to solve industrially relevant problems. These problems are often at the boundaries between established disciplines or in areas combining many disciplines that may ultimately lead to discovery. Through careful mentoring, he is empowering young engineers to develop the discipline to continue learning, and encouraging them to take creativity excursions outside the imagined constraints of their specialized areas that may ultimately lead to most exciting opportunities for the future.
Dr. Otaigbe received the prestigious U.S. National Science Foundation CAREER Award and the Best Paper-Polyolefins Award from the Thermoplastic materials and Foams Division of the Society of Plastics Engineers, USA. He was listed as an honored member in Who's Who of American Inventors (1998-1999 edition)
Labels: fameous charcters , Jonathan Otaigbe
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