Weitere ähnliche Inhalte Ähnlich wie Ap Treatment Of Carbon Fiber 09 (20) Ap Treatment Of Carbon Fiber 092. Purpose Increase fiber to resin adhesion Maintain strength & stiffness of fiber Stronger or lighter composites Applicability to other fibers 2 3. Intro to Atmospheric Plasma 760 Torr Reduces complexity Ionized gas High energy electrons Low energy ions Low density compared to vacuum plasma 3 4. Fiber to Resin Adhesion Controlled by: Surface chemistry Surface area Mechanical interlocking Current Solutions: Electrochemical oxidation Coupling agents (size) Non-circular fiber cross-section 4 5. What Can AP Do? Deposit polymer coating Functionalize fiber surface Increase surface roughness Potential for significant damage 5 10. ANOVA Table 4. Adjusted ANOVA to only reflect contribution of plasma chemistry 10 13. Cornell SEM Analysis B-Ribbed Surface A-Projecting Fibrils C-Detailed Projecting Fibrils D-Detailed Ribbed Surface 13 14. Conclusions Atmospheric Plasma can be used to increase the resin to fiber adhesion of carbon fiber Treatment increases surface area/ mechanical interlocking Gas chemistry more significant than treatment time Non-uniformity in plasma may contribute to reduction in strength of fiber 14 15. Future Work Sized versus unsized fibers Chemical Analysis Chamber design/ discharge method 15 19. Introduction to Carbon Fiber Advantages High strength to weight ratio High thermal & electrical conductivity Military, commercial, & consumer applications Disadvantages Cost Complex/ proprietary manufacturing Poor resin to fiber adhesion 19 Hinweis der Redaktion Use NCSU or Cornell Fiber diameter