Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 132, Issue 16, Pages -Publisher
WILEY
DOI: 10.1002/app.41882
Keywords
composites; fibers; resins; ring-opening polymerization; surfaces and interfaces
Categories
Funding
- Fund of the Science and Technology Program of the Higher Education Institutions of Shandong Province [J13LA06]
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A modified resin was synthesized through the reaction between dodecylamine and tetraglycidyldiaminodiphenylmethane (TGDDM), which was used as the film former of sizing agent for carbon fiber (CF). The sizing agents were prepared through phase inversion emulsification method. Fourier transform infrared spectroscopy (FTIR) was utilized to analyze the modified resin. Particle sizes of the sizing agents were tested to evaluate their stabilities. Differential scanning calorimetry (DSC) results demonstrated that the glass transition temperature (T-g) of the modified TGDDM is much higher than the T-g of the cured epoxy resin E-44. The influences of the sizing treatment on CF were investigated by abrasion resistance, fluffs, and stiffness tests. The maximum abrasion resistance increased by 172.8%, compared with the abrasion resistance of the desized CF. Interlaminar shear strength (ILSS) results of the CF/TGDDM composites indicated that the interfacial adhesion between CF and matrix resin was greatly improved after CF was sized. The maximum ILSS value could obtain a 29.16% improvement, compared with the ILSS of the desized CF composite. (C) 2015 Wiley Periodicals, Inc.
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