Polyurethane offers potential for faster cycling of RTM parts

A new polyurethane (PU) matrix resin for the resin transfer molding process (RTM) promises to speed up production of composite components in the automotive industry. Resin supplier Henkel (Düsseldorf, Germany) worked with machinery supplier KraussMaffei (Munich, Germany) to perfect processing technology employing the PU resin.The outcome of the joint development is curing times of just one minute for a real-life three-dimensional component—a significant advance for fast and efficient volume production of fiber composite components.

Driven by fuel efficiency targets and the resulting need for lightweight solutions, composite components have become an increasingly important factor in the multi-material designs of modern cars. Offering high strength combined with low weight, glass or carbon fiber-reinforced composite materials are especially suited for the manufacture of motor vehicle components. Particularly for mass-produced automobiles, resin injection processes such as RTM now predominate. ...

Read more