| 发明名称 |
Sound-Absorbing Material |
| 摘要 |
A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/-10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane. |
| 申请公布号 |
US2016267897(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201615008538 |
申请日期 |
2016.01.28 |
| 申请人 |
National Taiwan University of Science and Technology |
发明人 |
Wu Chang-Mou;Chou Min-Hui;Lee Jiunn-Yih |
| 分类号 |
G10K11/162;E04B1/82 |
主分类号 |
G10K11/162 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A sound-absorbing material comprising a membrane having multiple piezoelectric fibers, wherein
density of the membrane is below 50 g/m2; thickness of the membrane is below 1 mm; sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/−10%; and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. |
| 地址 |
Taipei TW |
