• PT Youtube
  • CW Facebook
  • CW Linkedin
  • CW Twitter
6/2/2014 | 2 MINUTE READ

Automotive prepregs, PVC core

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

AT JEC Europe 2014, the many new offerings at the Gurit Holding AG (Zurich, Switzerland) stand included the following new-generation prepregs for structural and cosmetic automotive applications and other demanding and/or high-temperature applications.

Share

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Related Suppliers

AT JEC Europe 2014, the many new offerings at the Gurit Holding AG (Zurich, Switzerland) stand included the following new-generation prepregs for structural and cosmetic automotive applications and other demanding and/or high-temperature applications.

SC 110 Cosmetic Carbon Prepreg, with a toughened hot-melt resin formulated for ultrahigh clarity, reportedly eliminates troublesome whitewash and spots and, thus, increases finished part yield (from autoclave or press) by an average of 20 percent. It cures at temperatures as low as 80°C/176°F or, for faster molding, at 120°C/248°F, and has an outlife of up to three weeks at 21°C/70°F. Available with a variety of carbon fiber forms, the prepreg can be used to produce not only body components (e.g., bonnets) but also more complex shapes with tight curvature, such as grills.

New SE 200 Structural Carbon Epoxy Prepreg, a toughened, high-strength system with reportedly excellent hot/wet performance, has a flexible cure envelope, ranging from 135°C to 200°C (275°F to 392°F), enabling rapid part manufacture via several processing methods. The minimum cure temperature is 135°C/275°F, from which SE 200 develops Tg and strength properties at a level associated with high-temperature 195°C/383°F curing systems. Cures in excess of 180°C/356°F reportedly achieve the best dry and wet thermal performance. In press molding, a 15-minute, hot-in/hot-out cure is said to be possible at 195°C/383°F, making SE 200 suitable for serial auto parts production (structural lower tubs, bulkheads, front and rear scuttles, exhaust tunnels and other structural components).

New SE 300 High Tg Prepreg is said to offer high-temperature stability and meet aerospace-grade flame/smoke/toxicity (FST) standards. According to Gurit, it combines “the ease of processing and handling convenience of epoxy resins, high temperature stability of polyimides, and flame/fire resistance of phenolics.” A 120°C/248°F cure for 75 minutes combined with a postcure, enables SE 300 to generate a Tg in excess of 300°C/572°F — ideal for parts exposed to very high temperatures for short durations.

 In other news, Gurit’s structural core offerings now include the following: Gurit PVC, a closed-cell, crosslinked PVC foam, which provides superior stiffness- and strength-to weight-ratios, low water absorption, excellent chemical resistance and acoustic/thermal insulation. A wide range of densities reportedly makes it suitable for wind energy, marine and transportation applications. Gurit PVC HT, another closed-cell, crosslinked foam, has higher temperature resistance (up to 140°C/285°F), making it compatible with heated molds and prepreg resin systems. Structural core materials are offered in sheet form and with a variety of cut patterns or finishes, tailored to customer needs or processing choice. Core is also available kitted. 

RELATED CONTENT

Resources