Sizing: Enhanced properties based on a unique polyurethane structure
When it comes to the performance of fiber-reinforced plastics, ensuring a good compatibility between the sizing and the polymer matrix is a crucial factor. In every sizing formulation, one of the key components is the film former. Our waterborne polyurethane dispersions are used as film formers for sizing to enhance the properties of both thermoplastic and thermoset applications.
To ensure an optimal fiber sizing composition, a film former should offer very good film-forming properties, dilutability and good shear stability. Characteristics such as polarity and compatibility with common sizing additives should also be considered for maximal formulating flexibility. For these needs as well as the specific requirements of composite technologies, we engineered our line of Baybond® waterborne polyurethane dispersions (PUDs). Our film formers include both polyester and polyether polyurethanes based on aliphatic isocyanates. Due to their unique structure, Baybond® film formers and crosslinkers offer a wide range of solutions tailored to individual customer requirements.