New ablative composite materials based on mesoporous silica nanoparticles

L. ASARO; M. COLOMBO; A. STOCHI; S. PELLICE; R. PROCCACINI; L. B. MANFREDI; E. S. RODRIGUEZ

Buenos Aires

Conferencia; VI International Conference on Science and Technology of Composite Materials (COMAT 2015).; 2015

European Centre for Nanostructured Polymers (ECNP)

Mesoporous silica particles were synthetized from Tetraethyl Orthosilicate (TEOS) and characterized by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The mesoporosity was confirmed by TEM, and then the particles where added to phenolic resin. Plaques made of phenolic resin, phenolic resin with mesoporous silica particles (20 wt. %) and phenolic resin with carbon black (20 wt. %) were obtained. Also, carbon fiber reinforced composites were processed with those resin systems. The ablative properties of the obtained materials were studied by the oxyacetylene torch test and the burned samples were observed by optical microscopy. Similar ablative properties where obtained for both composites, nevertheless mesoporous silica particles based materials are reported as promising thermal protect materials for the aerospace industry.