Teijin develops heat and impact resistant prepreg

Teijin’s new bismaleimide resin pre-impregnated prepreg achieves a high glass transition temperature (Tg) of 280℃ and compression after impact (CAI) of 220MPa, a previously difficult combination made possible based on Teijin’s original resin-composition formulating technology. The new prepreg also maintains its coefficient of linear thermal expansion and high dimensional stability at both low and high temperatures. Moreover, by adjusting resin viscosity, Teijin also has improved moldability by adjusting the resin flow through preforms in the mold cavity and reduced curing time with its new prepreg compared to conventional BMI-based prepregs.

Teijin, having developed technologies to adapt its prepreg for engine components, is now working on other high-heat applications for aerospace. These efforts will be supported with the knowhow and global marketing channels of Renegade Materials Corporation, a provider of highly heat-resistant composites, which Teijin recently decided to acquire.

Teijin will exhibit the new prepreg in the Teijin booth (hall6, G28 & J28) at JEC World 2019, the world’s leading composites exhibition, which will take place from March 12 to 14 in Paris.

Teijin is expanding its market for next-generation aircrafts by developing midstream-to-downstream lineups and related applications, such as cost-effective carbon fibres with higher-tenacity and higher-tensile modulus and intermediate materials including thermoplastic prepreg.

Going forward, Teijin intends to further strengthen its position as a leading solution provider for aircraft applications, targeting annual sales in this field in excess of $900 million by around 2030.

www.teijin.com