title: [Improving fiber adhesion by surface oxidation in carbon fiber reinforced bone cement].
abstract: The mechanical superiority of carbon fiber reinforced PMMA containing additional apatite was shown previously. For further improvement these carbon fibers were now submitted to a superficial oxidation treatment by HNO3. A closer contact between the carbon fibers and PMMA and even trabeculae-like adhesions were detected by Scanning Electron Microscopy. The fatigue strength of the carbon fiber reinforced bone cement could be increased at 17% by this oxidation treatment. This increase, however, is less than that observed in the case of other fiber reinforced composites. Most likely this is caused by the pronounced polymerisation contraction of PMMA. Further improvement of the adhesion of the fibers to cement may be achieved by different oxidation techniques, further extraction of foreign substances or graft polymerization of the carbon fibers by PMMA or other polymers.
authors.affiliation: Orthopädischen Univ.-u. Poliklinik, Homburg/Saar.
authors.forename: T
authors.initials: T
authors.lastname: Hopf
authors.forename: S
authors.initials: S
authors.lastname: Büttner
authors.forename: W
authors.initials: W
authors.lastname: Brill
mesh_terms: D000268:Adhesiveness; D002244:Carbon / Q000008:administration & dosage*; D006801:Humans; D007595:Joint Prosthesis; D008768:Methylmethacrylates / Q000008:administration & dosage*; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction
chemical_list: D008768:Methylmethacrylates; D002244:Carbon
vernacular_title: Die Verbesserung der Faserhaftung durch Oberflächenoxydation im kohlefaserverstärkten Knochenzement.