PCL–CNT Nanocomposites

Abstract

Many biomaterial applications have been realized by using polymeric scaffolds among which the biodegradable polymers, such as polycaprolactone (PCL), have drawn extensive attention with regard to tissue regeneration. However, PCL does not have the mechanical properties to be applied in high load bearing situation, which has limited its use in bone tissue engineering. One of the most effective methods of increasing the mechanical properties (elastic modulus and tensile strength) of a polymer is by reinforcing with a second-phase material. Hence, researchers have used different types of second-phase materials for mechanical strengthening of PLA, PCL, and their copolymers (PLC). Among all of these, carbon nanotubes (CNT) seem to be the reinforcement with most potential, due to their very high mechanical properties (Young's modulus 0.2–1 TPa, tensile strength 11–63 GPa) and fiber-like structure. Furthermore, the addition of carbon nanotubes to PCL can enhance the conductivity, thermal, mechanical and gas barrier properties of PCL. All these findings have caused carbon nanotubes to be the suitable second-phase reinforcement for biodegradable polymers in orthopedic scaffold applications.

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Title
PCL–CNT Nanocomposites
Book Title
Handbook of Polymer Nanocomposites. Processing, Performance and Application
Book DOI
10.1007/978-3-642-45229-1
Chapter DOI
10.1007/978-3-642-45229-1_41
Part of
Volume
Editors
  • Kamal K. Kar Send Email (1)
  • Jitendra K. Pandey Send Email (2)
  • Sravendra Rana Send Email (3)
  • Editor Affiliation
  • 1 Department of Mechanical Engineering and Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, India
  • 2 University of Petroleum and Energy Studies (UPES), Dehradun, India
  • 3 School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
  • Authors
  • Feng Luo Send Email (4)
  • Lanlan Pan Send Email (5)
  • Xibo Pei Send Email (4)
  • Rui He Send Email (4)
  • Jian Wang Send Email (6)
  • Qianbing Wan Send Email (6)
  • Author Affiliation
  • 4 West China School of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
  • 5 Department of Periodontics, The Affiliated Stomatology Hospital of Chongqing Medical University, Chongqing, 400015, China
  • 6 Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
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