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AssigneeAgency for Science, Technology and Research
InventorsKui YAO, Yasmin MOHAMED YOUSRY, Shu Ting CHEN, Poh Chong LIM
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A sound absorption material and a method (10) of fabricating a sound absorption material are provided. The method (10) includes preparing (12) a first precursor solution or suspension of one of a first triboelectric material and a second triboelectric material; and forming (16) a porous structure by using the first precursor solution or suspension in one of a templating technique with a second precursor solution or suspension of the other one of the first and second triboelectric material, an immersion technique with the other one of the first and second triboelectric materials, and an electrospinning technique with the other one of the first and second triboelectric materials. The porous structure includes a hybrid composite of the first triboelectric material having a first charge affinity and the second triboelectric material having a second charge affinity, wherein the first charge affinity is greater than the second charge affinity.
A sound absorption material, comprising:
The sound absorption material of claim 21, wherein the difference between the first and second charge affinities is between about 200 nC/J and about 250 nC/J.
A method of fabricating a sound absorption material, comprising:
19-28. (canceled)
30-32. (canceled)
34-35. (canceled)
Dependencies are inferred from the claim text.