Fuente: Journal of applied polymer Lugar: RESEARCH ARTICLE Panel production (Prepereg Materials) of the systematic fabrication process.

ABSTRACT
In this study, a prepreg system was developed using a water-based resol-type phenolic resin (PFR) reinforced with high silica fabric. Then, plates were produced from this prepreg material by the hand-laying method; the plates were cured in an autoclave environment, and an ablative composite material with high thermal resistance and low erosion rate was obtained. Thermal, mechanical, physical, and ablation tests were performed on the composite material, and the results were evaluated. Thermal expansion values were 5.12, 1.04, and 2.07 μm/m °C at the temperature ranges of 20°C–45°C, 80°C–105°C, and 130°C–180°C, respectively. The density of the produced thermoset composite material is about 1.8 g/cm3. The fiber ratio of the composite is about 69%. Thermal conductivity values were calculated from 30°C to 130°C, perpendicular and parallel to the fiber, and were found to be in the range of 0.0078–0.004 W/m K. This work provides information on the thermal protection systems, that is, the ablative materials with high silica fabric-reinforced resol resin prepregs.