Invention Grant
- Patent Title: Sound-absorbing material
- Patent Title (中): 吸音材料
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Application No.: US15008538Application Date: 2016-01-28
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Publication No.: US09514732B2Publication Date: 2016-12-06
- Inventor: Chang-Mou Wu , Min-Hui Chou , Jiunn-Yih Lee
- Applicant: National Taiwan University of Science and Technology
- Applicant Address: TW Taipei
- Assignee: National Taiwan University of Science and Technology
- Current Assignee: National Taiwan University of Science and Technology
- Current Assignee Address: TW Taipei
- Agency: Kamrath IP Lawfirm, P.A.
- Agent Alan D. Kamrath
- Priority: TW104107705A 20150311
- Main IPC: E04B1/86
- IPC: E04B1/86 ; G10K11/162 ; E04B1/82 ; E04B1/74
Abstract:
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.
Public/Granted literature
- US20160267897A1 Sound-Absorbing Material Public/Granted day:2016-09-15
Information query
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