A research institute specializing in Materials Science

Composites Research Division

Department of Carbon Composites

Head of Department
Yi, Jin-Woo

Department Introduction

Based on prominent carbon materials such as carbon nanotubes, graphene, and advanced carbon fibers, Carbon Composites Department is aiming to enhance current major industries and to promote future initiative technologies by developing innovative material design and manufacturing knowhow for high-performance and smart composites. Current main research activities cover thermoplastic/thermosetting polymer resin formulation, advanced composite manufacturing technology for future transportation application, textile-based energy generating/storage materials and smart sensors for wearable electronics, and multiscale micro/nano composites.


Major Activities

6 SCI/SCIE journal papers publication, 7/1 domestic patents applied and registered, 2/1 international patent applied and registered
4 new research projects: ‘Development of mass production technology for car trunk lids using hybrid wet compression molding’ and etc
31 technical services and advises for composite-manufacturing companies
Participation of International composites exhibition (2017 JEC Asia)

Major Research Area

Advanced resin formulation for high-performance carbon fiber reinforced composites
Fabrication technology for advanced composites
Carbon nanomaterial-based composites and hierarchical porous 3D nano-carbon structures
Carbon nanomaterial based Composites for Electrochemical Energy Storage
Filament/textile-based smart multi-sensors and organic FET
Composite Technology for Eco-friendly/extreme environment

Future Research Plan

  • High-speed composite liquid manufacturing technology for future transportation
  • Recyclable thermoplastic/thermoset resin technology for CFRP
  • Integrated energy generating and storage materials for wearable electronics
  • Multi-sensing materials and organic FET/ECT sensors for in-site HAPs monitoring

Major R&D Activities

Development of high-speed fabrication technology of an automotive thermoplastic composites part using reactive polymerization process


  • Development of thermoplastic polymer resin and reactive processing system for high-speed carbon fiber-reinforced thermoplastic composites (CFRTP) production and CFRTP automotive part (Roof Cross Member) manufacturing

[Developments & Achievements]

  • Thermoplastic polymer resin formulation and polymer foam compatibility test
  • Development of new coating material for CFRTP (CFRTP inter-laminar shear strength (ILSS) 73.7 MPa)
  • Development of numerical process simulation technology to predict polymerization during reactive processing.
  • The first domestic CFRTP automotive part (Roof Cross Member) manufacturing
World Highest-Level CFRTP ILSS 73.7 MPa
The first domestic CFRTP automotive part (Roof Cross Member) manufacturing

Development of RI (Resin infusion) & RFI (Resin film infusion) hybrid process for manufacturing sandwich composite for aircraft


  • Development of RI & RFI hybrid process with high manufacturing stability for manufacturing a sandwich composite door of KF-X

[Developments & Achievements]

  • Development of resin film fabrication technology from liquid type resin
  • Development of RI & RFI hybrid process technology for manufacturing sandwich composite
  • RI & RFI hybrid process having high manufacturing stability compared with RI process for sandwich because there is no air trap when resin infused
  • Quality check for a prototype manufactured by RI & RFI hybrid process using non-destructive inspection and destructive inspection
Schematic diagram of RI & RFI hybrid process
Manufacturing prototype by RI & RFI process and quality check by ultrasonic inspection

Development of scalable highly porous three-dimension architecture made of nanocarbon materials


  • The objective of the research is to develop the highly porous three-dimensional architecture made of the nanocarbon materials such as carbon nanotubes, graphene and graphene oxide. The highly porous nano-carbon architecture will be used for the preform structure for high performance energy, environment and composite applications.

[Developments & Achievements]

  • Development of nanocarbon hydrogels with temperature controlled gel-liquid transition.
  • Development of ultra-light and highly porous nano-carbon architecture with high specific surface area. (2300 m2/g @ 5mg/mL)
  • 200% mechanical enhancement of the porous architecture by decoration of the secondary graphitic layers.
Scalable 3D nanocarbon architecture
Mechanical property of nanocarbon architecture with secondary graphitic layer