Porous nano-material and sound attenuator based on porous nano-material

A technology of nanomaterials and sound attenuators, applied in the field of porous nanomaterials and sound attenuators based on porous nanomaterials, can solve the problems of poor practicability and achieve excellent sound insulation performance, light weight, and thin thickness

Inactive Publication Date: 2014-04-02
鲁红兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The sound insulation materials and sound insulation equipment in the prior art are poor in practicability and can no longe

Method used

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  • Porous nano-material and sound attenuator based on porous nano-material
  • Porous nano-material and sound attenuator based on porous nano-material
  • Porous nano-material and sound attenuator based on porous nano-material

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] as attached Figure 2-5 As shown, the porous nanomaterial of the present invention includes primary particles and secondary particles composed of primary particles. The primary particles are nanoparticles; the nanoparticles are silica particles or polymer particles;

[0033] The secondary particles are granular and / or fibrous; the hole diameter of the porous nanomaterial is 5 nanometers to 10 microns; the sound attenuation loss value of the porous nanomaterial is between 20 decibels / cm and 100 decibels / cm between.

[0034] The porous nanomaterial also includes a coating embedded with secondary particles, the coating includes at least one polymer, the polymer is polyurea, polymethyl methacrylate, polystyrene, polynorbornene One of.

[0035] The primary particle has a diameter of 1 nm to 15 nm, and the secondary particle h...

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Abstract

The invention relates to a porous nano-material, which comprises primary particles and second particles which are composed of primary particles. The invention also relates to a sound attenuator based on the porous nano-material, and the sound attenuator is prepared from the porous nano-material. The superior effects of the porous nano-material and the sound attenuator based on the porous nano-material are as follows: the porous nano-material has light weight and thin thickness with excellent sound insulation performance, and the panel of the porous nano-material is made into different shapes according to needs, and the sound attenuation loss of the porous nano-material is not lower than 20-100 db/cm; the sound attenuator based on the porous nano-material is suitable for various environments with popularization value.

Description

technical field [0001] The invention belongs to the field of noise-reducing and sound-insulating materials, and in particular relates to a porous nanomaterial and a sound attenuator based on the porous nanomaterial. Background technique [0002] Noise is generated by the vibration of objects, and reducing noise and creating a quiet living environment have always been people's goals. There are many sources of noise, including but not limited to: vehicles on the road, planes taking off or landing, sounds produced during lathe processing, grinding, sandblasting and other processing, washing machines, refrigerators, dishwashers and other household appliances, gunshots and explosions. Noise can cause hearing loss. Prolonged exposure to moderate-intensity sounds, such as the operation of a sandblasting machine, or short-term exposure to high-intensity sounds, such as those caused by explosions, can cause irreversible hearing loss. [0003] Material science and acoustics experts ...

Claims

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Application Information

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IPC IPC(8): C08L75/02C08L45/00C08L33/12C08L79/08C08K3/36C09C1/28C09C3/10A61F11/08A61F11/14
Inventor 鲁红兵
Owner 鲁红兵
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