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Three-dimensional porous framework-reinforced fiber sponge containing high-efficiency sound-absorbing material and preparation thereof

A three-dimensional porous, fiber-reinforced technology, applied in the field of sound-absorbing materials, can solve problems such as limitations, insufficient tensile properties and shear properties, and achieve the effects of enhanced dissipation, improved mechanical strength and resilience, and improved durability.

Inactive Publication Date: 2017-09-01
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obtained sound-absorbing material has a full-fiber structure and has the characteristics of low volume density, but its mechanical strength is only provided by the bonding points between fibers, resulting in insufficient tensile and shear properties, which are limited in the actual construction process

Method used

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  • Three-dimensional porous framework-reinforced fiber sponge containing high-efficiency sound-absorbing material and preparation thereof
  • Three-dimensional porous framework-reinforced fiber sponge containing high-efficiency sound-absorbing material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a three-dimensional porous frame-reinforced fiber sponge high-efficiency sound-absorbing material includes a three-dimensional porous frame-reinforced fiber sponge 2 and a microporous membrane 1 compounded on the three-dimensional porous frame-reinforced fiber sponge 2 .

[0040] Such as figure 2 As shown, the three-dimensional porous frame-reinforced fiber sponge includes a three-dimensional porous frame 3 and fibers 4, and the three-dimensional porous frame is used as the main support reinforcement structure. By placing the three-dimensional porous frame in fiber slurry containing a flame retardant, the slurry is formed- Solvent drying-curing treatment obtained.

[0041] The preparation method of the three-dimensional porous frame reinforced fiber sponge high-efficiency sound-absorbing material is as follows:

[0042] The first step: disperse 10g of cotton fiber raw materials with an average diameter of 20 μm and an average aspect ratio o...

Embodiment 2

[0049] Such as figure 1 As shown, a three-dimensional porous frame-reinforced fiber sponge high-efficiency sound-absorbing material includes a three-dimensional porous frame-reinforced fiber sponge 2 and a microporous membrane 1 compounded on the three-dimensional porous frame-reinforced fiber sponge 2 .

[0050] Such as figure 2 As shown, the three-dimensional porous frame-reinforced fiber sponge includes a three-dimensional porous frame 3 and fibers 4, and the three-dimensional porous frame is used as the main support reinforcement structure. By placing the three-dimensional porous frame in fiber slurry containing a flame retardant, the slurry is formed- Solvent drying-curing treatment obtained.

[0051] The preparation method of the three-dimensional porous frame reinforced fiber sponge high-efficiency sound-absorbing material is as follows:

[0052] The first step: Disperse 5g of silk fiber raw materials with an average diameter of 15μm and an average aspect ratio of 30...

Embodiment 3

[0059] Such as figure 1 As shown, a three-dimensional porous frame-reinforced fiber sponge high-efficiency sound-absorbing material includes a three-dimensional porous frame-reinforced fiber sponge 2 and a microporous membrane 1 compounded on the three-dimensional porous frame-reinforced fiber sponge 2 .

[0060] Such as figure 2 As shown, the three-dimensional porous frame-reinforced fiber sponge includes a three-dimensional porous frame 3 and fibers 4, and the three-dimensional porous frame is used as the main support reinforcement structure. By placing the three-dimensional porous frame in fiber slurry containing a flame retardant, the slurry is formed- Solvent drying-curing treatment obtained.

[0061] The preparation method of the three-dimensional porous frame reinforced fiber sponge high-efficiency sound-absorbing material is as follows:

[0062] Step 1: Disperse 3.6g of polyimide fiber raw materials with an average diameter of 10μm and an average aspect ratio of 50,...

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Abstract

The invention provides a three-dimensional porous framework-reinforced fiber sponge containing high-efficiency sound-absorbing material and preparation thereof. The three-dimensional porous framework-reinforced fiber sponge containing high-efficiency sound-absorbing material is characterized by comprising three-dimensional porous framework-reinforced fiber sponge and a microporous membrane compounded on the three-dimensional porous framework-reinforced fiber sponge. The sound-absorbing material is the high-efficiency sound-absorbing material obtained by introducing a three-dimensional porous framework with certain mechanical strength as a main body supporting reinforcing structure, putting the three-dimensional porous framework into flame retardant-containing fiber slurry, forming the slurry, drying a solvent, curing to obtain the reinforced fiber sponge with a reinforcing framework therein, and compounding the reinforced fiber sponge with the microporous membrane. The noise reduction coefficient (NRC) of the obtained sound-absorbing material is 0.34-0.59; and the sound-absorbing material shows relatively high sound-absorbing performance.

Description

technical field [0001] The invention relates to a sound-absorbing material. In particular, it relates to a three-dimensional porous frame reinforced fiber sponge high-efficiency sound-absorbing material obtained by compounding a reinforced fiber sponge material containing a three-dimensional porous frame and a microporous film. Background technique [0002] Noise pollution has become one of the four major environmental pollutions (noise pollution, water pollution, air pollution and solid waste pollution). Noise will have a great negative impact on people's health, life and study. Therefore, the research on sound-absorbing materials has become one of the main methods to solve this problem. At present, foreign literature [Sound Absorbing Polyester Recycled Nonwovens for the Automotive Industry[J].Fibres&Textiles in EasternEurope, 2016, 24(1): 107-113] reports a method of improving sound absorption by increasing the thickness and quality of needle-punched non-woven fabrics. p...

Claims

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Application Information

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IPC IPC(8): B32B9/02B32B9/04B32B3/12B32B3/24B32B37/00B32B27/40B32B27/28B32B37/06B32B27/02B32B27/30B32B27/34B32B15/02B32B15/082B32B15/20B32B37/12B32B27/36B32B23/02B32B23/08D06M11/72D06M15/05D06M15/15D06M13/292D06M15/59D06M15/03D06M13/298D06M15/347D06M11/83D06M15/507D06M15/564C08J9/40D06M101/06D06M101/12D06M101/38
CPCB32B27/40B32B3/12B32B3/266B32B7/12B32B27/12B32B27/285B32B27/286B32B27/304B32B27/306B32B27/308B32B27/34B32B27/365B32B37/00B32B37/065B32B37/12B32B2260/021B32B2260/046B32B2262/02B32B2262/0223B32B2262/0246B32B2262/0276B32B2262/0292B32B2262/062B32B2262/08B32B2262/10B32B2262/103B32B2307/10B32B2307/3065C08J9/40D06M11/72D06M11/83D06M13/292D06M13/298D06M15/03D06M15/05D06M15/15D06M15/347D06M15/507D06M15/564D06M15/59D06M2101/06D06M2101/12D06M2101/38
Inventor 丁彬吴红炎曹雷涛乌园园赵兴雷印霞孙刚俞建勇
Owner DONGHUA UNIV
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