Preparation method of sound-absorbing material particles and sound-absorbing material particles
A sound-absorbing material and particle technology, applied in the field of material processing, can solve the problems of less cavity structure, lower mass transfer efficiency and sound-absorbing effect of zeolite-based sound-absorbing materials
Active Publication Date: 2018-03-06
GOERTEK INC
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Problems solved by technology
However, the particles of sound-absorbing materials made under the action of adhesives or coagulants tend to be denser and have fewer hollow structures in the particles.
The above reasons greatly reduce the mass transfer efficiency and sound-absorbing effect of zeolite-based sound-absorbing materials.
Method used
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[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0027] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0028] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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Abstract
The invention discloses a preparation method of sound-absorbing material particles and sound-absorbing material particles. The preparation method of the sound-absorbing material particles includes: mixing sound-absorbing raw materials and solvents to form sound-absorbing slurry; filling the sound-absorbing slurry into a mechanical compression mold, and performing compression molding on the sound-absorbing slurry to form a particle shaped body; The hydrothermal crystallization reaction is carried out on the formed particle body to crystallize the sound-absorbing raw material in the formed particle body; the dry treatment is carried out on the formed particle body to generate sound-absorbing material particles.
Description
technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a method for preparing sound-absorbing material particles and the sound-absorbing material particles. Background technique [0002] In recent years, as wearable electronic products become lighter and thinner, traditional foaming sound-absorbing materials can no longer meet the needs of the micro-speaker industry for the adjustment and correction of acoustic performance. Placing porous sound-absorbing materials in the back cavity of the device can effectively improve its acoustic performance. At present, such new sound-absorbing materials with good application effects include natural zeolite, activated carbon, white carbon black, zeolite powder with a silicon-aluminum ratio of more than 200, etc. sound-absorbing material. In the application process, the above powdered non-foaming sound-absorbing material needs to be prepared into granules, and then the sou...
Claims
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IPC IPC(8): C04B14/04B01J2/22
CPCB01J2/22C04B14/047C04B18/02C04B40/024C04B2111/52C04B35/18C04B38/00C04B2235/3463C04B2235/3472C04B2235/3481C04B2235/5427C04B2235/5436C04B2235/602C04B2235/606C04B2235/656C04B2235/6562C04B2235/6584C01B39/02G10K11/162C04B38/0054C04B38/0067C01P2006/11C01P2006/12
Inventor 曹晓东
Owner GOERTEK INC