Formation of Interpenetrating-Phase Composites Based on the Combined Effects of Open-Cell PIF and Porous TPU Microstructures for Enhanced Mechanical and Acoustical Characteristics
Xiaohe Ren,
Jun Wang,
Gaohui Sun
et al.
Abstract:The open-cell foam is a highly preferred soundabsorbing material used for improving indoor sound quality. Herein, polyimide foam (PIF) with an open-cell structure was synthesized through the introduction of oxalic acid dihydrate (H 2 C 2 O 4 •2H 2 O). The introduction and subsequent decomposition of H 2 C 2 O 4 •2H 2 O provided additional heterogeneous nucleation sites during foaming and promoted the formation of open-cell structures. The relation between H 2 C 2 O 4 •2H 2 O content and pore structure, the for… Show more
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