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Sound insulation material and method for preparing sound insulation material

A technology of sound insulation materials and polymer materials, applied in the field of sound insulation materials and preparation of sound insulation materials, to achieve the effect of improving the effect of noise isolation

Pending Publication Date: 2021-02-23
BEIJING AUTOMOBILE RES GENERAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, current sound insulation materials, the method for preparing sound insulation materials still need to be improved.

Method used

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  • Sound insulation material and method for preparing sound insulation material
  • Sound insulation material and method for preparing sound insulation material
  • Sound insulation material and method for preparing sound insulation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1. Preparation of modified graphene materials

[0066] Add 1 g of graphene oxide with a size of 1 μm to 1 LSOCl 2 , 20ml of anhydrous DMF, reflux at 80°C for 20h, filter and wash to obtain graphene oxide acid chloride.

[0067] Inject 100ml of anhydrous THF into a round bottom bottle under nitrogen protection, then add 2.5g of 4-hydroxy-2,2,6,6-tetramethylpiperidine nitroxide radical, 1.6g of p-dimethylaminopyridine and mix well . Then add 1 g of graphene oxide acid chloride, and react under reflux at 75 degrees Celsius for 48 hours. After filtering and washing, drying is used to obtain a graphene initiator.

[0068] Under the protection of argon, the purified 0.15g CuBr, 0.2g pentamethyldiethylenetriamine, 10g styrene, and 1g graphene initiator were sequentially added to 50ml anhydrous toluene. Under an argon protective atmosphere, stir and reflux at 95 degrees Celsius for 4 days to obtain a pre-modified graphene solution.

[0069] Add 1 g of (3-epoxypropyl)trimet...

Embodiment 2

[0073] The method for preparing the modified graphene material in this example and the process parameters for preparing the sound-insulating material are the same as those in Example 1, except that the size of the graphene used is 5 microns.

Embodiment 3

[0075] The method for preparing the modified graphene material in this embodiment and the process parameters for preparing the sound-insulating material are all the same as in Example 1. The difference is that the addition of the modified graphene material is 100g, the addition of polypropylene is 900g, and the honeycomb honeycomb core The hypotenuse length c is 8mm.

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Abstract

The invention provides a sound insulation material and a method for preparing the sound insulation material, wherein the sound insulation material has a honeycomb structure, the honeycomb structure contains modified graphene and a high polymer material, and the size of the modified graphene is 0.3-50 [mu]m. Therefore, the honeycomb structure and the micro-honeycomb structure of the sound insulation material jointly improve the noise insulation effect of the material.

Description

technical field [0001] The invention relates to the field of sound insulation, in particular to a sound insulation material and a method for preparing the sound insulation material. Background technique [0002] Cars have become an indispensable part of people's life and travel, and the number of cars is gradually increasing, but at the same time, the impact of vehicle noise on people's lives is increasing. 75% of urban noise comes from traffic noise, and traffic noise is mainly car noise. With the increasing impact of noise on people's life, work and health, sound insulation materials have become an important concern for everyone. [0003] Therefore, the current sound insulation material and the method for preparing the sound insulation material still need to be improved. Contents of the invention [0004] The present invention aims to alleviate or solve at least one of the above-mentioned problems, at least to some extent. [0005] In one aspect of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/162
CPCG10K11/162
Inventor 马治国王智文栗娜孙垒尚红波刘永杰段瑛涛
Owner BEIJING AUTOMOBILE RES GENERAL INST