Towards Tailored Interphase Formation Utilizing Surface-Active BenzylsulfoniumSalts as Cationic Initiators

摘要

The bonding between reinforcement and matrix in a composite involves amicroscopic interphase region that is generally composed of a polymer network formed by multilayer buildup of a coupling agent attached to the surface of the fiber into which the matrix can propagate and bond. The main purpose of the interphase is to provide a structural lattice that will allow for good energy transfer from the matrix to the reinforcement. The interphase plays a dominant role in the fracture toughness properties of composites and in their response to aqueous and corrosive environments. Being able to develop tailored interphases will allow control of composite properties to optimize strength, modulus, and toughness.