公开(公告)号：US20160267897A1

公开(公告)日：2016-09-15

申请号：US15008538

申请日：2016-01-28

Applicant: National Taiwan University of Science and Technology

Inventor： Chang-Mou Wu ,  Min-Hui Chou ,  Jiunn-Yih Lee

IPC: G10K11/162 ,  E04B1/82

CPC classification number: G10K11/162 ,  E04B1/8209 ,  E04B2001/742

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.

Abstract translation: 吸音材料具有多个压电纤维的膜，膜的纤维密度低于50g / m 2，膜的厚度低于1mm，吸收频率时膜的吸声系数大于0.1 在100Hz +/- 10％时，在800Hz至1000Hz的吸收频率下，膜的吸声系数超过0.05。 本发明的PVDF静电纺丝纳米纤维膜与传统的吸音材料相比更薄且更灵活，本发明的膜具有非常薄的膜的优异的低频吸声。

公开(公告)号：US09514732B2

公开(公告)日：2016-12-06

申请号：US15008538

申请日：2016-01-28

Applicant: National Taiwan University of Science and Technology

Inventor： Chang-Mou Wu ,  Min-Hui Chou ,  Jiunn-Yih Lee

IPC: E04B1/86 ,  G10K11/162 ,  E04B1/82 ,  E04B1/74

CPC classification number: G10K11/162 ,  E04B1/8209 ,  E04B2001/742

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.

Abstract translation: 吸音材料具有多个压电纤维的膜，膜的纤维密度低于50g / m 2，膜的厚度低于1mm，吸收频率时膜的吸声系数大于0.1 在100Hz +/- 10％时，在800Hz至1000Hz的吸收频率下，膜的吸声系数超过0.05。 本发明的PVDF静电纺丝纳米纤维膜与传统的吸音材料相比更薄且更灵活，本发明的膜具有非常薄的膜的优异的低频吸声。