Fiber porous composite sound-absorbing material and preparation method and application thereof

The invention provides a fiber porous composite sound-absorbing material which is a polyacrylonitrile nanofiber membrane compounded with SiO2 nanoparticles, the thickness of the fiber porous composite sound-absorbing material is 100-130 microns, and the surface density of the fiber porous composite...

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU HAN, YIN MENGXUAN, TENG CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS NON-WOVEN FABRICS PHYSICS SOUND-PRODUCING DEVICES TEXTILES TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	The invention provides a fiber porous composite sound-absorbing material which is a polyacrylonitrile nanofiber membrane compounded with SiO2 nanoparticles, the thickness of the fiber porous composite sound-absorbing material is 100-130 microns, and the surface density of the fiber porous composite sound-absorbing material is 30-40 g/m < 2 >. The invention further provides a preparation method of the fiber porous composite sound-absorbing material, compared with the prior art, the preparation method is simpler, and the prepared fiber porous composite sound-absorbing material is compact in structure arrangement, small in pore diameter and better in sound-absorbing performance within the frequency range of 100-2500 Hz. 本发明提供了一种纤维多孔复合吸音材料，所述纤维多孔复合吸音材料为复合SiO2纳米颗粒的聚丙烯腈纳米纤维膜，所述纤维多孔复合吸音材料的厚度为100-130μm，所述纤维多孔复合吸音材料的面密度为30-40g/m2，还提供了一种纤维多孔复合吸音材料的制备方法，相较现有技术更加简单，制得的纤维多孔复合吸音材料结构排列紧密、孔径较小，在100～2500Hz频率范围内吸音性能更好。