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Effect of crystal morphology transition of polypropylene on interfacial properties of carbon fiber-reinforced composites through AlOOH surface treatment

  • Seung Jin See
  • , Song Hee Han
  • , Kwang Un Jeong
  • , Il Joon Bae
  • , Ik Pyo Hong
  • , Su Kang Choi
  • , Seong Su Kim*
  • *Corresponding author for this work
  • Jeonbuk National University
  • Research Institute of Industrial Science & Technology, Pohang

Research output: Contribution to journalJournal articlepeer-review

Abstract

Carbon fiber reinforced thermoplastics (CFRTPs) have many advantages, such as short processing cycle times, recyclability and design flexibility. However, CFRTPs have weak interfacial properties due to the non-polarity of carbon fibers. In this study, AlOOH surface treatment was applied on carbon fibers to improve the interfacial properties between the fiber and the matrix. The effect of the surface treatment on the crystal morphology of isotactic polypropylene (i-PP) at the interface was investigated by polarized optical microscopy (POM). The mechanical properties of fabricated CFRTPs were evaluated by measuring the interlaminar shear strength (ILSS). The ILSS of the AlOOH treated specimens after epoxy desizing increased by 106.8% compared with that of the untreated specimens.

Original languageEnglish
Pages (from-to)362-370
Number of pages9
JournalComposites Part A: Applied Science and Manufacturing
Volume78
DOIs
StatePublished - 2015.11.1

Keywords

  • A. Carbon fibers
  • B. Interface/interphase
  • D. Microstructural analysis
  • E. Surface treatments

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Mechanical
  • Materials Science

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