乳状液
材料科学
尺寸
热塑性塑料
色散(光学)
蒸发
水溶液
溶剂
复合材料
化学工程
有机化学
化学
热力学
光学
物理
工程类
作者
Isabelle Giraud,Sophie Franceschi-Messant,Emile Perez,Colette Lacabanne,Eric Dantras
标识
DOI:10.1016/j.apsusc.2012.11.098
摘要
In this work, different sizing agent aqueous dispersions based on polyetherimide (PEI) were elaborated in order to improve the interface between carbon fibers and a thermoplastic matrix (PEEK). The dispersions were obtained by the emulsion/solvent evaporation technique. To optimize the stability and the film formation on the fibers, two surfactants were tested at different concentrations, with different concentrations of PEI. The dispersions obtained were characterized by dynamic light scattering (DLS) and the stability evaluated by analytical centrifugation (LUMiFuge). The selected dispersions were tested for film formation ability by scanning electron microscopy (SEM), and the sizing performance was assessed by observation of the fiber/matrix interface by SEM. The results revealed that an aqueous dispersion of PEI,stabilized by sodium dodecyl sulfate as the surfactant, led to very stable sizing agent aqueous dispersion with ideal film formation and better interface adhesion.
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