The invention provides composite sound-absorbing cotton for shock absorption of an automobile component. The composite sound-absorbing cotton (10) comprises a first sound-absorbing layer (11), a second sound-absorbing layer (12) and a third composite layer (13). The second sound-absorbing layer (12) has a thickness direction (14). The first sound-absorbing layer (11) covers one side of the secondsound-absorbing layer (12) in the thickness direction (14) thereof. The third composite layer (13) is bonded to the other side of the second sound-absorbing layer (12) in the thickness direction (14)thereof. The first sound-absorbing layer (11) is made of a high-elasticity supporting fiber material. The second sound-absorbing layer (12) is made of an ultrafine fiber material. The third compositelayer (13) is made of a non-woven fabric material. The superfine fibers and the high-elasticity supporting fibers are compounded, so that the use amount of the superfine fibers is reduced, meanwhile,sound absorption performance is maintained; the high-elasticity supporting fibers have high elasticity, the thickness of the sound absorption material can be improved, and the long-term deformation ofthe shape of the sound absorption cotton is maintained.
本发明提供一种用于汽车构件减震的复合吸音棉,复合吸音棉(10)包括一个第一吸音层(11)、一个第二吸音层(12)及一个第三复合层(13)。第二吸音层(12)具有一个厚度方向(14)。第一吸音层(11)覆盖于第二吸音层(12)在其厚度方向(14)上的一侧。第三复合层(13)粘接于第二吸音层(12)在其厚度方向(14)上的另一侧。第一吸音层(11)为高弹性支撑纤维材料。第二吸音层(12)为超细纤维材料。第三复合层(13)为无纺布材料。本发明将超细纤维与高弹性支撑纤维复合,减少超细纤维量的使用,同时维持吸音性能,高弹性支撑纤维具有高弹性率,能够改善吸音材料的厚度,维持吸音棉的形状长期变形。
Composite sound-absorbing cotton for shock absorption of automobile component and automobile component
一种用于汽车构件减震的复合吸音棉及汽车构件
2020-09-01
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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