Composite materials for payload shroud

We are looking at designing a 10" diameter, 48" long payload shroud (Ogive nose cone) for a large hobby rocket. We have done an aeroheating analysis based on the trajectory, so we have the max temp. experienced during ascent at several body points. We want to make the shroud out of composites and in order to size the shroud thickness, we need material property data (thermal conductivity, emissivity) for some yet-to-be identified candidate materials. What materials might we look at? I have access to the ASM materials databases, but I'm not really sure exactly what specific materials I should be targeting.



Any thoughts?