| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous polyurethane urea fluid dispersion as a sizing agent to a fiber providing good compatibility to a matrix plastic in manufacturing a fiber reinforced composite material (FRP) and having a specific forming component, a manufacturing method therefor, use thereof as a coating composition to the fiber and a method of using a coated fiber thereof in a composite material.SOLUTION: There is provided an aqueous polyurethane urea fluid dispersion having polyurethane urea with a specific forming component, the content of -COOH group of at least 0.75 wt.%, where 0 to 35% of these groups are neutralized and 5 to 50 mol% of existing isocyanate group reacts with a monofunctional component. There are further provided a use of the fluid dispersion as a coating composition and a fiber and a composite material having cured coating.SELECTED DRAWING: None |
