Design and Properties of High Resilience Silicone Modified Polyimide Foam Materials
IIn this paper,a series of high resilience silicone-modified polyimide foams(IBPIF-Si)were prepared.The pore structure,mechanical properties,foaming principles and the highest operating temperature of IBPIF-Si were investigated.Compared to pure IBPIF,IBPIF-Si showed the low density[(22.0±6.7)mg/cm3)],high porosity(97.93％),excellent hydrophobic[the water contact angle was(128±2.72)°]and outstanding flexibility(with a linear elastic region was 0～14.77％).This unique modification method broadened the potential application of polyimide foam in the aerospace sector,including heat insulation,noise reduction,insulation and other aspects.
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