eXPRESS Polymer Letters (2020-10-01)

A facile approach for grafting bi-functional groups terminated branched polyphosphazene on carbon fibers

  • Z. J. He,
  • J. H. Liu,
  • S. H. Liu,
  • X. Q. Zhang,
  • C. H. Lei

DOI
https://doi.org/10.3144/expresspolymlett.2020.78
Journal volume & issue
Vol. 14, no. 10
pp. 962 – 969

Abstract

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We explored a facile method for grafting bi-functional groups terminated branched polyphosphazene on carbon fibers via direct epoxy amination with an aqueous ammonia solution. The branched polyphosphazene with abundant β-hydroxyl groups and amino groups significantly changes the chemical composition of carbon fibers surface. A significant improvement in interfacial shear strength was obtained from 43.6 MPa for virgin carbon fibers (C.F.) composites to 89.6 MPa for branched polyphosphazene grafted C.F. composites.

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