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Preparation method of waste rubber-based damping vibration attenuation sound-absorbing composite material

A technology for sound-absorbing composite materials and waste rubber, which is applied in the chemical characteristics of fibers, textiles and paper making, etc., can solve the problems of poor mechanical properties of sound-absorbing materials, and achieve the effects of good electrical conductivity, improved sound absorption performance, and good energy absorption.

Inactive Publication Date: 2019-08-27
陈朝明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved by the present invention: Aiming at the problem of poor mechanical properties of existing sound-absorbing materials, a preparation method of waste rubber-based damping, vibration-reducing and sound-absorbing composite materials is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026]Put the polyurethane fiber in a muffle furnace for pre-oxidation treatment to obtain the pre-oxidized polyurethane fiber; activate the pre-oxidized polyurethane fiber, take it out and dry it naturally to obtain the activated polyurethane fiber; place the activated polyurethane fiber in the In the furnace, carry out carbonization treatment, namely porous carbonized fiber; take waste rubber, porous carbonized fiber, acrylic acid emulsion, N, N-dimethylaniline, sulfur, white carbon black, waste rubber, acrylic acid emulsion, porous carbonized fiber Mixing treatment with white carbon black to obtain a kneaded product, adding N, N-dimethylaniline and sulfur to the kneaded product, and performing stirring treatment to obtain a mixture, and quickly pouring the mixture into a mold for After the constant temperature reaction, the mold is demoulded to obtain the waste rubber-based damping vibration-absorbing and sound-absorbing composite material. The polyurethane fiber is placed ...

example 2

[0028] Put the polyurethane fiber in a muffle furnace for pre-oxidation treatment to obtain the pre-oxidized polyurethane fiber; activate the pre-oxidized polyurethane fiber, take it out and dry it naturally to obtain the activated polyurethane fiber; place the activated polyurethane fiber in the In the furnace, carry out carbonization treatment, namely porous carbonized fiber; take waste rubber, porous carbonized fiber, acrylic acid emulsion, N, N-dimethylaniline, sulfur, white carbon black, waste rubber, acrylic acid emulsion, porous carbonized fiber Mixing treatment with white carbon black to obtain a kneaded product, adding N, N-dimethylaniline and sulfur to the kneaded product, and performing stirring treatment to obtain a mixture, and quickly pouring the mixture into a mold for After the constant temperature reaction, the mold is demoulded to obtain the waste rubber-based damping vibration-absorbing and sound-absorbing composite material. The polyurethane fiber is placed...

example 3

[0030] Put the polyurethane fiber in a muffle furnace for pre-oxidation treatment to obtain the pre-oxidized polyurethane fiber; activate the pre-oxidized polyurethane fiber, take it out and dry it naturally to obtain the activated polyurethane fiber; place the activated polyurethane fiber in the In the furnace, carry out carbonization treatment, namely porous carbonized fiber; take waste rubber, porous carbonized fiber, acrylic acid emulsion, N, N-dimethylaniline, sulfur, white carbon black, waste rubber, acrylic acid emulsion, porous carbonized fiber Mixing treatment with white carbon black to obtain a kneaded product, adding N, N-dimethylaniline and sulfur to the kneaded product, and performing stirring treatment to obtain a mixture, and quickly pouring the mixture into a mold for After the constant temperature reaction, the mold is demoulded to obtain the waste rubber-based damping vibration-absorbing and sound-absorbing composite material. The polyurethane fiber is placed...

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Abstract

The invention relates to a preparation method of a waste rubber-based damping vibration attenuation sound-absorbing composite material and belongs to the technical field of sound-absorbing materials.A polyurethane fiber is subjected to pre-oxidation, activation and carbonization treatment to obtain polyurethane-based porous carbonized fiber, so that the sound absorption performance of the composite material is obviously improved due to the addition of the polyurethane-based porous carbonized fiber; the polyurethane-based porous carbonized fiber is introduced into a hybrid system, on one hand,air is introduced into the material by utilizing the hollowing property of the fiber, meanwhile a crystalline fiber network structure is formed through fiber crystallization induction, the problem ofpoor mechanical property of a common sound absorption material is solved, and the sound absorption property of the material is improved by means of the crystalline fiber network. The waste rubber-based damping vibration attenuation sound-absorbing composite material is prepared into the honeycomb composite material, and the honeycomb composite material has excellent performances of energy absorption, vibration reduction, energy storage and the like. By adding white carbon black, the mechanical property of the waste rubber-based damping vibration attenuation sound-absorbing composite materialis improved effectively.

Description

technical field [0001] The invention relates to a preparation method of a waste rubber-based damping, vibration-reduction and sound-absorbing composite material, which belongs to the technical field of sound-absorbing materials. Background technique [0002] Recycled materials such as waste rubber, waste plastics, metal shavings, textile waste and other solid waste can be used to make acoustic materials, and different sizes of recycled material particles can be mixed to obtain the desired properties. Among the many wastes, end-of-life tire management is one of the biggest problems in waste disposal. At present, the main source of waste rubber is discarded waste tires. After running for tens of thousands of kilometers, the rubber material of the tire is fully stretched, compressed, and sheared, and its physical properties are stable, which is superior to the newly made rubber. The matrix material of tire rubber is a kind of viscoelastic polymer material. Although its densit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L19/00C08L33/04C08K13/04C08K7/24C08K3/36C08K3/06C08K5/18D01F9/24
CPCC08L19/003C08L2201/08D01F9/245C08L33/04C08K13/04C08K7/24C08K3/36C08K3/06C08K5/18
Inventor 陈朝明
Owner 陈朝明
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