Title:
SOUND-ABSORBING MATERIAL BLOCK, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/050899
Kind Code:
A1
Abstract:
A sound-absorbing material block, a preparation method therefor, and a use thereof. The sound-absorbing material block comprises three-dimensional open-cell foam, sound-absorbing material powder, a binder, a gelling agent, and a cross-linking agent. The gelling agent, the cross-linking agent, and the binder enable the sound-absorbing material powder to be bonded to itself and connected to the three-dimensional open-cell foam. Based on the mass of the sound-absorbing material powder, the gelling agent accounts for 1-5 wt% of the sound-absorbing material powder and the binder accounts for 1-8 wt% of the sound-absorbing material powder, and based on the mass of the gelling agent, the cross-linking agent accounts for 1-10 wt% of the gelling agent. In the sound-absorbing material block, the amount of the binder that is added is reduced, and the sound absorption performance and strength of the material block are significantly improved.
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Inventors:
WANG ZHONGYANG (CN)
WANG HEZHI (CN)
ZHANG JIE (CN)
WANG HEZHI (CN)
ZHANG JIE (CN)
Application Number:
PCT/CN2022/122708
Publication Date:
March 14, 2024
Filing Date:
September 29, 2022
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
International Classes:
G10K11/165; C08J9/36; C08K3/34; G10K11/162; H04R9/06
Domestic Patent References:
| WO2018120697A1 | 2018-07-05 |
Foreign References:
| CN114495883A | 2022-05-13 | |||
| CN105601984A | 2016-05-25 | |||
| CN105681999A | 2016-06-15 | |||
| US20190139527A1 | 2019-05-09 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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