Baybond®: waterborne dispersions for fiber sizing – a solution to tweak composite properties
To fully exploit the ability of fibers to reinforce plastics, they are coated with sizing immediately after their manufacture. This protects the fibers from mechanical damage that could occur during subsequent processing. However, the real purpose of the sizing becomes evident in composites, where it is responsible for the mechanical bond between the plastic matrix and the fiber surface, and therefore influences the ultimate strength of the composites. Baybond® waterborne polyurethane dispersions are used as film formers in fiber-sizing formulations. They are specifically developed to ensure excellent fiber protection and maximum reinforcement in thermoplastics.