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Nanometer composite carbon black with ultrahigh sound insulation performance and preparation method thereof

A technology of sound insulation performance and composite carbon black, which is applied in the treatment of dyed low molecular organic compounds, fibrous fillers, coatings, etc., to achieve the effect of improving dispersion stability, improving sound insulation performance, and having more bubbles and holes

Active Publication Date: 2021-04-06
青岛黑猫新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the application of nano-carbon black in sound-proof coatings.

Method used

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  • Nanometer composite carbon black with ultrahigh sound insulation performance and preparation method thereof
  • Nanometer composite carbon black with ultrahigh sound insulation performance and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A preparation method of ultra-high sound-insulating performance nano-composite carbon black, the preparation process is as follows:

[0034] (1) Disperse the P, P-oxobisbenzenesulfonylhydrazide of 1 / 12 of the quality of nano-carbon black in ethanol with 1.5 times the quality of nano-carbon black, then add nano-carbon black, and stir evenly;

[0035] (2) Ethanol was removed by distillation under reduced pressure to obtain nano-carbon black adsorbed with P,P-oxobisbenzenesulfonyl hydrazide, and heated to 140°C for 30 minutes;

[0036] (3) Quickly introduce liquid carbon dioxide with 1.5 times the mass of nano-carbon black through the pipeline, pressurize to 7.5MPa, and heat to 35°C to become supercritical, and circulate for 10min;

[0037] (4) Reduce pressure and discharge carbon dioxide to obtain nano-composite carbon black with ultra-high sound insulation performance.

[0038] Before the 3rd step adds liquid carbon dioxide, make nano-carbon black moisture absorption re...

Embodiment 2

[0048] A preparation method of ultra-high sound-insulating performance nano-composite carbon black, the preparation process is as follows:

[0049] (1) Disperse the P, P-oxobisbenzenesulfonylhydrazide of nano carbon black quality 1 / 11 in the ethanol of nano carbon black quality 1.8, then add nano carbon black, stir;

[0050] (2) Ethanol was removed by distillation under reduced pressure to obtain nano-carbon black adsorbed with P,P-oxobisbenzenesulfonyl hydrazide, which was heated to 150°C for 27 minutes;

[0051] (3) Quickly introduce liquid carbon dioxide with 1.0 times the mass of nano-carbon black through the pipeline, pressurize to 7.5MPa, and heat to 35°C to become supercritical, and circulate for 15min;

[0052] (4) Reduce pressure and discharge carbon dioxide to obtain nano-composite carbon black with ultra-high sound insulation performance.

[0053] Before the 3rd step adds liquid carbon dioxide, make nano-carbon black moisture absorption reach 4% to water content; ...

Embodiment 3

[0063] A preparation method of ultra-high sound-insulating performance nano-composite carbon black, the preparation process is as follows:

[0064] (1) Disperse the P, P-oxobisbenzenesulfonylhydrazide of 1 / 10 of the nano-carbon black quality in ethanol with 2.0 times the nano-carbon black quality, then add the nano-carbon black, and stir evenly;

[0065] (2) Ethanol was removed by distillation under reduced pressure to obtain nano-carbon black adsorbed with P,P-oxobisbenzenesulfonyl hydrazide, and heated to 160°C for 20 minutes;

[0066](3) Quickly introduce liquid carbon dioxide with 0.8 times the mass of nano-carbon black through the pipeline, pressurize to 7.5MPa, and heat to 35°C to become supercritical, and circulate for 20 minutes;

[0067] (4) Reduce pressure and discharge carbon dioxide to obtain nano-composite carbon black with ultra-high sound insulation performance.

[0068] Before the 3rd step adds liquid carbon dioxide, make nano-carbon black moisture absorption ...

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Abstract

The invention discloses a process for expanding internal cracks and surface holes of nanometer carbon black and improving the specific surface area and porosity of the nanometer carbon black by utilizing the foaming performance of P,P-oxo-diphenylsulfonylhydrazine and reduced-pressure distillation . Meanwhile, liquid carbon dioxide is used for cold impact on hot nanometer carbon black to form supercritical carbon dioxide, so the specific surface area and porosity of the supercritical carbon dioxide are further improved. The sound insulation performance of a prepared sound insulation coating is greatly improved by being matched with a matched construction method.

Description

technical field [0001] The invention relates to a production process of nanocomposite carbon black, in particular to a nanocomposite carbon black with ultra-high sound insulation performance and a preparation method thereof. Background technique [0002] In the prior art, sound-insulating coatings are used more and more widely due to their flexible coating properties. [0003] Nano carbon black is suitable for various application directions due to its high specific surface area and porosity. But there are few reports on the application of nano-carbon black in sound-proof coatings. [0004] The invention develops a production process for improving the porosity of the nano carbon black, thereby improving the sound insulation performance of the sound insulation coating prepared by using the nano carbon black. Contents of the invention [0005] The invention develops a nano-composite carbon black with ultra-high sound insulation performance and a preparation method thereof. ...

Claims

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Application Information

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IPC IPC(8): C09C1/56C09C3/08C09D163/00C09D7/62
CPCC09C1/56C09C3/08C09D163/00C09D7/62C09D7/70C08K2201/011C08K9/10C08K9/04C08K9/02C08K3/04C08K7/24
Inventor 王宏邵路聂绪建陈忠斌
Owner 青岛黑猫新材料研究院有限公司
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