Surface Hydrophilic Modification of Polypropylene Fiber by Hydrolysis of Silane Coupling Agent
Silane coupling agent is applied to modify polypropylene fiber. The modification effectively transfers the hydrophobic surface of polypropylene fiber to hydrophilic surface. Results from FT-IR, SEM and contact angle meter suggest that that the surface functional groups, the morphology and hydrophilia of polypropylene fiber is changed during the hydrolysis reactions of silane coupling agent. The modification process not only improve the surface hydrophilia of polypropylene fiber, but also convert the smooth surface of unmodified fibers to rough surface of modified fibers which gives stronger interface bonding force between fiber and substrate in the field of composite applications.
Y. W. Fei et al., "Surface Hydrophilic Modification of Polypropylene Fiber by Hydrolysis of Silane Coupling Agent", Key Engineering Materials, Vol. 779, pp. 80-85, 2018