Abstract
AbstractVinyl ester resin emulsion type sizing agent (HMSA‐1) was synthesized by phase inversion emulsification method. Centrifugal sedimentation analysis, particle size analysis, Fourier transforms infrared spectroscopy (FTIR), and gel permeation chromatography were used to characterize HMSA‐1 and Japanese commercial sizing agents (JSA‐1 and JSA‐2). Meanwhile, abrasion resistance, fluffs and breakage, stiffness, scanning electron microscope (SEM) were used to analyze the workability in later process of carbon fiber and surface morphology. The results showed that HMSA‐1 could significantly improve handling characteristics of carbon fiber. SEM micrographs demonstrated that the sized carbon fiber had smooth surface. HMSA‐1 had better compatibility with vinyl ester resin. The interlaminar shear strength (ILSS) of HMSA‐1 sized carbon fiber/vinyl ester resin composite reached the maximum value of 45.96 MPa. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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