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Spotlight on Research about 'Graphene', the Material of Dreams, Led by Professor Joong Hee Lee 

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국제교류부 (hqiof) 2012/04/05 14:49:56
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Spotlight on Research about 'Graphene', the Material of Dreams, Led by Professor Joong Hee Lee

 

At only 0.7 nanometers thick (70 billionths of a meter) it is 100 times stronger than steel, has 100 times the conductivity of copper, and can move electrons over 100 times faster than semi-conductor silicon. These are the features of ‘graphene’, the material of dreams that is being lauded as the new core material for the future.

Tapas Kuila (postdoctoral researcher) and Bong Joo Jeong (master’s course), members of the research team led by Prof. Jong Hee Lee of the BIN Fusion Technology Department at CBNU, recently released their paper on ‘graphene’ at the 20th Annual Symposium on Processing and Fabrication of Advanced Materials (PFAM XX) in Hong Kong and garnered much attention on their way to receiving the award for the most outstanding paper.

The theme of the paper announced at the symposium was ‘Preparation and Characterization of High Performance LLDPE/Graphene Nanocomposites’.

‘Graphene’ is largely regarded within the academic circle as the future material of dreams. The research looked into the technology of using graphene and mixing it with thermoplastic polymer resin, which transforms easily when heated, to create nano-composite materials. In the research, Prof. Lee succeeded in producing the composite material by first chemically transforming the graphene surface to make it easier to disperse in organic solvents, then mixing it with an organic solvent formed by melting polyethylene, which is a thermoplastic resin that is easily transformed by heating, and finally drying it in a vacuum.

By adding only 1% of graphene in producing the graphene composite material, the researchers were able to achieve a whopping 62% improvement in mechanical properties, which brought much attention from academia.

The new material developed through the research has outstanding properties, electrical conductivity, and transparency, which can be used for the production of functional films, coating, anti-static and much more.

 
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