Carbon fibre surface modification facilitated by silver-catalysed radical decarboxylation

A silver catalysed radical decarboxylation process was used to graft a copolymer (4 : 1; methylacrylate/acrylic acid) onto short carbon fibres. Surface grafting was confirmed by XPS, SEM and TGA, suggesting that the polymer accounted for 10% of the modified materials mass. Incorporation of these sur...

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Published inChemical communications (Cambridge, England) Vol. 59; no. 65; pp. 986 - 9863
Main Authors Hayne, David J, Dharmasiri, Bhagya, Stojcevski, Filip, Eyckens, Daniel J, Hooper, Joel F, Henderson, Luke C
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 10.08.2023
Subjects
Acrylic acid
Carbon fiber reinforced plastics
Copolymers
Decarboxylation
Epoxy resins
Failure modes
Fiber-matrix interfaces
Graft copolymers
Polymers
X ray photoelectron spectroscopy
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Summary:A silver catalysed radical decarboxylation process was used to graft a copolymer (4 : 1; methylacrylate/acrylic acid) onto short carbon fibres. Surface grafting was confirmed by XPS, SEM and TGA, suggesting that the polymer accounted for 10% of the modified materials mass. Incorporation of these surface enhanced carbon fibres into an epoxy resin gave composites demonstrating an increase in ductility and a clear change in failure mode from adhesive, at the fibre-matrix interface, to cohesive, within the matrix polymer itself. A silver catalysed radical decarboxylation process was used to graft a copolymer (4 : 1; methylacrylate/acrylic acid) onto short carbon fibres.
Bibliography:https://doi.org/10.1039/d3cc02482b
Electronic supplementary information (ESI) available: Polymer analysis and synthesis, modification procedures, composite preparation and SEM preparation is provided. See DOI
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc02482b