Invention Grant
- Patent Title: Method for preparing mesoporous sound-absorbing material particles and mesoporous sound-absorbing material particles
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Application No.: US15781297Application Date: 2016-05-18
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Publication No.: US11028023B2Publication Date: 2021-06-08
- Inventor: Xiaodong Cao
- Applicant: Goertek Inc.
- Applicant Address: CN Shandong
- Assignee: Goertek Inc.
- Current Assignee: Goertek Inc.
- Current Assignee Address: CN Shandong
- Agency: Patent Law Works LLP
- Priority: CN201510888059.3 20151203
- International Application: PCT/CN2016/082475 WO 20160518
- International Announcement: WO2017/092243 WO 20170608
- Main IPC: C04B38/10
- IPC: C04B38/10 ; C04B38/06 ; G10K11/165 ; C04B38/00 ; G10K11/162 ; H04R1/28 ; C04B111/52

Abstract:
The invention discloses a method for preparing mesoporous sound-absorbing material particles and mesoporous sound-absorbing material particles. The preparation method comprises the following steps. In step 1, sound-absorbing material powder and a templating agent are mixed with a binding agent and water to form sol slurry, the templating agent is an organic monomer or a linear polymer, and the templating agent has a purity greater than 95%. In step 2, the sol slurry is dropped into forming oil, and the droplets of the sol slurry are aged in the forming oil to form gel particles. In step 3, the gel particles are taken out from the forming oil and the gel particles are dried to form mesoporous sound-absorbing material particles. In step 4, the mesoporous sound-absorbing material particles are roasted.
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