Noise reduction earplug

An earplug and noise reduction technology, which is applied in the field of earplugs, can solve the problems of earplugs being fragile, poor noise reduction effect of earplugs, etc., and achieve the effects of low cost, anti-aging and deformation, and remarkable noise reduction effect

Inactive Publication Date: 2021-08-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned prior art, the present invention provides a noise reduction earplug to

Method used

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] In the embodiment of the present invention, such as Figure 1~2 As shown, a noise reduction earplug is provided. The noise reduction earplug in the present invention includes a shell 1 , and the shell 1 includes a base 11 and a graphene coating 12 coated on the outside of the base 11 . The shell 1 in the present invention is made of a material with a certain strength and good sound-absorbing effect. In a preferred embodiment of the present invention, the shell 1 is made through the following steps:

[0035] S1: Put the metal substrate into the roller chamber of the roll-to-roll tube vacuum furnace, and anneal it; the metal substrate can be copper foil, nickel foil, copper alloy foil, etc. The specific method of annealing treatment is: First pump the pressure in the roller chamber to below 1Pa, and then inject H with a flow rate of...

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PUM

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Abstract

The invention discloses a noise reduction earplug. The earplug comprises a shell, and the shell comprises a substrate and a graphene coating the outer side of the substrate; and the shell is filled with a sound-absorbing material. According to the noise reduction earplug, the defects that the traditional noise reduction earplug is prone to aging and deformation are overcome to a certain degree, the noise reduction performance of the earplug can be remarkably improved, and possibility is provided for application of a graphene thin film material in daily life.

Description

technical field [0001] The invention relates to an earplug, in particular to a noise reduction earplug. Background technique [0002] Graphene, a two-dimensional thin film material, has long attracted the attention of researchers because of its unique electrical, optical and mechanical properties. Graphene is composed only of sp 2 The honeycomb two-dimensional material composed of hybrid carbon atoms has excellent properties such as high transmittance, high electrical conductivity, ultra-high mechanical strength and large specific surface area, making it widely used in the fields of energy, materials, microelectronic devices and aviation. Has very broad prospects. The researchers found that the preparation of graphene films by chemical vapor deposition is one of the most effective and commonly used methods at present. Characteristics and other aspects are also more excellent than other preparation methods. [0003] Traditional noise-reducing earplugs generally only use v...

Claims

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Application Information

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IPC IPC(8): A61F11/08C01B32/186
CPCA61F11/08C01B32/186
Inventor 冉扬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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