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Interfacial enhancement of carbon fiber composites by growing TiO 2 nanowires onto amine-based functionalized carbon fiber surface in supercritical water

  • Lichun Ma*
  • , Nan Li
  • , Guangshun Wu
  • , Guojun Song
  • , Xiaoru Li
  • , Ping Han
  • , Gang Wang
  • , Yudong Huang
  • *Corresponding author for this work
  • Qingdao University
  • Dalian University of Technology
  • Ludong University
  • School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A novel amine-based functionalization method was developed to improve the interfacial adhesion between TiO 2 NWs and CFs in supercritical water. The microstructure, morphology and mechanical properties of CFs were investigated. It was found that introducing hexamethylenetetramine (HMTA) dendrimers and branched polyethyleneimine (PEI) on CF could increase significantly the adhesion strength between CF and TiO 2 NWs and their interfacial shear strength with epoxy resin, and the order is CF-PEI-TiO 2 NWs > CF-HMTA-TiO 2 NWs > CF-COOH-TiO 2 NWs > CF-TiO 2 NW. Meanwhile, the reinforcing mechanisms and interfacial failure modes have also been discussed. We believe that these effective methods may provide theoretical foundation for the preparation of high performance composite materials.

Original languageEnglish
Pages (from-to)560-567
Number of pages8
JournalApplied Surface Science
Volume433
DOIs
StatePublished - 1 Mar 2018
Externally publishedYes

Keywords

  • Carbon fiber
  • Interface
  • Mechanical properties
  • Nanowires
  • Polymer-matrix composites (PMCs)

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