Sound absorbing material and preparation method thereof

A sound-absorbing material and sound-absorbing layer technology, applied in the field of sound-absorbing materials, can solve the problems of single function and low sound absorption coefficient, and achieve the effects of saving resources, small thermal conductivity, good chemical stability and corrosion resistance

Inactive Publication Date: 2021-03-19
申廷珂
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional sound-absorbing materials have low sound absorption coefficient and relatively single function

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sound absorbing material and preparation method thereof
  • Sound absorbing material and preparation method thereof
  • Sound absorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A sound-absorbing material, which consists of upper, middle and lower parts, of which the upper and lower layers are sound-absorbing layers, and the middle layer is a sound-insulating layer.

[0034] The sound-absorbing layer is slag wool.

[0035] The sound insulation layer is made of the following raw materials in parts by weight:

[0036] 22 portions of minced sunflower rhizomes,

[0037] 56 parts of gypsum,

[0038] 0.3 parts of benzoic acid,

[0039] 56 parts of water.

[0040] The sound insulation layer is prepared by the following steps:

[0041] (1) Put the sunflower rhizome into a pulverizer for crushing, put the crushed sunflower rhizome in an oven to dry for 24 hours to remove moisture, set the temperature to 110° C., and finally have a moisture content of <9.9%;

[0042] (2) After drying, use a 200-mesh sieve to sieve the crushed sunflower rhizomes, mix and stir the sifted rhizomes with gypsum water, add a benzoic acid preservative during the mixing pro...

Embodiment 2

[0049] A sound-absorbing material, which consists of upper, middle and lower parts, of which the upper and lower layers are sound-absorbing layers, and the middle layer is a sound-insulating layer.

[0050] The sound-absorbing layer is slag wool.

[0051] The sound insulation layer is made of the following raw materials in parts by weight:

[0052] 25 parts of sunflower rhizome mince,

[0053] 50 parts of gypsum,

[0054] 0.5 parts of benzoic acid,

[0055] 60 parts of water.

[0056] The sound insulation layer is prepared by the following steps:

[0057] (1) Put the sunflower rhizome into a pulverizer for crushing, put the crushed sunflower rhizome in an oven to dry for 24 hours to remove moisture, set the temperature to 110° C., and finally have a moisture content of <9.9%;

[0058] (2) After drying, use a 200-mesh sieve to sieve the crushed sunflower rhizomes, mix and stir the sifted rhizomes with gypsum water, add a benzoic acid preservative during the mixing process,...

Embodiment 3

[0065] A sound-absorbing material, which consists of upper, middle and lower parts, of which the upper and lower layers are sound-absorbing layers, and the middle layer is a sound-insulating layer.

[0066] The sound-absorbing layer is slag wool.

[0067] The sound insulation layer is made of the following raw materials in parts by weight:

[0068] 30 portions of minced sunflower rhizomes,

[0069] 60 parts of gypsum,

[0070] 0.4 parts of benzoic acid,

[0071] 65 parts of water.

[0072] The sound insulation layer is prepared by the following steps:

[0073] (1) Put the sunflower rhizome into a pulverizer to pulverize, put the pulverized sunflower rhizome in an oven to dry for 24 hours to remove moisture, set the temperature to 105° C., and finally have a moisture content of <9.9%;

[0074] (2) After drying, use a 200-mesh sieve to sieve the crushed sunflower rhizomes, mix and stir the sifted rhizomes with gypsum water, add a benzoic acid preservative during the mixing pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a sound absorbing material and a preparation method thereof. The sound absorbing material is composed of an upper sound absorbing layer, a lower sound absorbing layer and a middle sound insulation layer, and the sound absorbing layers are mineral wool; the sound insulation layer is prepared from the following raw materials in parts by weight: 20-30 parts of sunflower rhizome powder, 40-60 parts of gypsum, 0.2-0.5 part of benzoic acid and 50-70 parts of water. The sound absorbing material adopts biomass material sunflower rhizomes as a raw material, has environmental friendliness, plays a role in waste utilization, and saves resources. Due to the characteristics of the three-layer structure, the sound absorbing material has good sound absorption performance and a good sound insulation effect, the mineral wool is adopted as the sound absorbing layers, and therefore the sound absorbing material has good flame retardant property and can be applied to a high-temperature environment. In addition, the mineral wool has good chemical stability and corrosion resistance, and the service life of the prepared sound absorbing material is greatly prolonged.

Description

technical field [0001] The invention belongs to the field of functional materials, in particular to a sound-absorbing material. Background technique [0002] Since the industrial revolution, the creation and application of various machines has brought progress and prosperity to mankind, but at the same time it has also brought many troubles to mankind, such as noise pollution. At present, noise pollution, air pollution and water pollution are listed as the three major pollution sources of the environment, and it has become an important issue that human beings need to solve urgently. Noise pollution greatly affects people's work and quality of life, and seriously endangers the human auditory system. In addition, noise will also accelerate the aging of buildings and mechanical structures, thereby affecting the precision of equipment and instruments and shortening the service life of instruments. There are usually two ways to solve noise pollution. One is to control the sound...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B32B9/02B32B9/04B32B13/04B32B7/12B32B37/00B32B37/12C04B28/14C04B18/24C04B111/52
CPCB32B7/12B32B9/02B32B9/04B32B13/04B32B37/00B32B37/12B32B2307/10B32B2307/102B32B2307/302B32B2307/3065B32B2307/714C04B28/14C04B2111/00612C04B2111/52C04B24/04C04B18/248Y02W30/91
Inventor 不公告发明人
Owner 申廷珂
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap