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Aerogel anti-noise earplug

An anti-noise and airgel technology, applied in the field of airgel, can solve the problems of poor sound insulation effect of earplugs and achieve good sound insulation effect

Inactive Publication Date: 2015-10-28
南京纳世新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a kind of airgel anti-noise earplug with good sound insulation effect for the problem of poor sound insulation effect of traditional earplugs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The shape of the airgel anti-noise earplug 100 of one embodiment is cylindrical, such as figure 1 As shown, a main body 110 is included. The main body 110 includes a section of sound insulation, that is, the entire main body 110 is a section of sound insulation. And the whole body 110 is made of polyurea airgel. The polyurea airgel of the airgel anti-noise earplug 100 of this embodiment has a uniform density and only has one specification, specifically 0.08g / cm 3 . In addition, the porosity of the polyurea airgel of the airgel noise-proof earplugs 100 of this embodiment is 92.5%, and the specific surface area is 198.6m 2 / g.

[0025] The airgel anti-noise earplug 100 of embodiment 1 is a soft earplug, because the polyurea nanofibers in the polyurea airgel layer and the micro-nano-level porous structure self-assembled by nanoparticles can effectively attenuate the sound wave energy, therefore, implement The airgel anti-noise earplug 100 of Example 1 can achieve the ...

Embodiment 2

[0027] The difference between this embodiment and Embodiment 1 is that the airgel anti-noise earplugs of this embodiment are hard earplugs, and the density of the polyurea airgel forming the airgel anti-noise earplugs is 0.4g / cm 3 . At the same time, the porosity of the polyurea airgel of the airgel anti-noise earplug of the present embodiment is 72.7%, and the specific surface area is 72.9m 2 / g.

[0028] The airgel anti-noise earplug of embodiment 2 is hard earplug, because the polyurea nanofiber in the polyurea airgel layer and the self-assembled micro-nano-level porous structure of nanoparticle can effectively attenuate sound wave energy, therefore, embodiment The airgel noise-proof earplugs of 2 can achieve the effect of sound insulation and noise reduction, and the sound insulation effect is good.

Embodiment 3

[0030] The shape of the airgel anti-noise earplug 300 of one embodiment is cylindrical, such as figure 2 As shown, a main body 310 is included. The main body 310 includes three sound-insulating sections, specifically a first sound-insulating section 311 , a second sound-insulating section 312 and a third sound-insulating section 313 , and two adjacent sound-insulating sections are connected by bonding. And the first sound insulation section 311 , the second sound insulation section 312 and the third sound insulation section 313 are all made of polyurea airgel, but the density of the polyurea airgel of two adjacent sound insulation sections is different. Specifically, the density of the polyurea airgel in the first sound insulation section 311 and the third sound insulation section 313 is both 0.08g / cm 3 , the density of polyurea airgel in the second sound insulation section 312 is 0.4g / cm 3 . In addition, the porosity of the polyurea airgel in the first sound insulation se...

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Abstract

The invention relates to an aerogel anti-noise earplug comprising a body. The body includes at least one sound insulation section made of polyurea aerogel. The sound insulation sections of the aerogel anti-noise earplug are made of polyurea aerogel, and a micro-nano porous structure self-assembled with polyurea nanometer fibers and nanometer particles in the polyurea aerogel layer can effectively attenuate acoustic energy. Therefore, the aerogel anti-noise earplug of the invention can achieve the effects of sound insulation and noise reduction, and has a good sound insulation effect.

Description

technical field [0001] The invention relates to the field of airgel, in particular to an airgel anti-noise earplug. Background technique [0002] With the development of society and the increase in the number of human beings, more and more noises are filling the surrounding environment of our lives, such as the noise generated by construction projects and vehicles, and noisy noises in crowded places, etc., which often cause us to have no way Study and work with peace of mind. At this time, earplugs have become a good choice. Wearing earplugs can block the noise in the noisy environment around you. [0003] However, the traditional earplugs adopt a porous foam structure, such as the earplug with the patent name "a multi-purpose earplug" (application number 201220443710.8), which is made of sound-absorbing sponge, but the size of the hole structure is too large, resulting in poor sound insulation effect , can not effectively prevent the interference of environmental noise. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/08
Inventor 陆群王芬
Owner 南京纳世新材料有限责任公司
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