The development of smart composites capable of self-repair in aeronautical structures is still at the planning stage owing to complex issues to overcome. It is critical that self-healing activity functions at low working temperatures which can reach values as low as – 50°C. Also, another problem concerns the components’ stability of the proposed composites which are compromised at the cure temperatures necessary for good performance of the composite. Here, we show a multifunctional autonomically healing composite with self-healing function capable at very low temperatures (-50°C). The self-repair function in this self-healing system is based on the metathesis polymerization of ENB/DCPD blend activated by HG1 catalyst dispersed at molecular level in the matrix. The formulated material shows a self-healing efficiency of about 72 %.
Structural materials: Nanoscale modifiers in advance composites. Healing agent for the activation of self-healing function at low temperature
RAIMONDO, MARIALUIGIA;LONGO, Pasquale;MARICONDA, ANNALUISA;GUADAGNO, Liberata
2013
Abstract
The development of smart composites capable of self-repair in aeronautical structures is still at the planning stage owing to complex issues to overcome. It is critical that self-healing activity functions at low working temperatures which can reach values as low as – 50°C. Also, another problem concerns the components’ stability of the proposed composites which are compromised at the cure temperatures necessary for good performance of the composite. Here, we show a multifunctional autonomically healing composite with self-healing function capable at very low temperatures (-50°C). The self-repair function in this self-healing system is based on the metathesis polymerization of ENB/DCPD blend activated by HG1 catalyst dispersed at molecular level in the matrix. The formulated material shows a self-healing efficiency of about 72 %.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
