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Carbon nanotube fireproof material and preparation method thereof

A technology of carbon nanotubes and fireproof materials, applied in the field of fireproof materials, can solve the problems of poor fire resistance and low use safety of nylon materials, and achieve the effects of improving fireproof performance, improving mechanical strength, and good dispersion compatibility.

Inactive Publication Date: 2018-12-11
合肥滴答科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From this, it can be seen that the fire resistance of nylon materials is poor, and the safety of use in applications and various fields is low. Therefore, how to improve the flame retardancy of nylon materials is the focus of current research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A carbon nanotube fireproof material, which is composed of the following raw materials in parts by weight: zinc hydroxystannate 4, lignin 10, carbon nanotube 49, caprolactam 240, ammonium persulfate 4, 2,2-dimethylol Propionic acid 3, calcium stearate 1, thionyl chloride 30, triethylamine 0.1.

[0017] The preparation method of the carbon nanotube fireproof material comprises the following steps:

[0018] (1) Take zinc hydroxystannate, add it to 5 times its weight in absolute ethanol, stir evenly, add lignin, increase the temperature to 55°C, heat and stir for 1 hour, distill off ethanol, dry at room temperature, and obtain activated lignin white;

[0019] (2) Get ammonium persulfate, join in the deionized water of its weight 10 times, stir;

[0020] (3) Take carbon nanotubes, add them to 20 times their weight in 96% sulfuric acid solution, sonicate for 1 hour, filter, wash the precipitate with water, mix it with 2,2-dimethylolpropionic acid, and heat it at 60°C Insu...

Embodiment 2

[0025] A carbon nanotube fireproof material, which is composed of the following raw materials in parts by weight: zinc hydroxystannate 5, lignin 16, carbon nanotube 55, caprolactam 300, ammonium persulfate 6, 2,2-dimethylol Propionic acid 5, calcium stearate 2, thionyl chloride 50, triethylamine 0.14.

[0026] The preparation method of the carbon nanotube fireproof material comprises the following steps:

[0027] (1) Take zinc hydroxystannate, add it to 8 times the weight of absolute ethanol, stir evenly, add lignin, increase the temperature to 60°C, heat and stir for 2 hours, distill off ethanol, and dry at room temperature to obtain activated lignin white;

[0028] (2) Get ammonium persulfate, join in the deionized water of its weight 13 times, stir;

[0029] (3) Take carbon nanotubes, add them to 30 times its weight in 98% sulfuric acid solution, ultrasonicate for 2 hours, filter, wash the precipitate with water, mix it with 2,2-dimethylolpropionic acid, and heat it at 70...

Embodiment 3

[0034] A carbon nanotube fireproof material, which is composed of the following raw materials in parts by weight: zinc hydroxystannate 4, lignin 13, carbon nanotube 52, caprolactam 270, ammonium persulfate 5, 2,2-dimethylol Propionic acid 4, calcium stearate 1.5, thionyl chloride 40, triethylamine 0.12.

[0035] The preparation method of the carbon nanotube fireproof material comprises the following steps:

[0036] (1) Take zinc hydroxystannate, add it to 7 times its weight in absolute ethanol, stir evenly, add lignin, raise the temperature to 58°C, heat and stir for 1.5 hours, distill off ethanol, dry at room temperature, and obtain activated lignin white;

[0037] (2) Get ammonium persulfate, join in the deionized water of its weight 12 times, stir;

[0038] (3) Take carbon nanotubes, add them to 25 times their weight in 96% sulfuric acid solution, sonicate for 1.5 hours, filter, wash the precipitate with water, mix it with 2,2-dimethylolpropionic acid, and heat it at 60°C...

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Abstract

The invention discloses a carbon nanotube fireproof material and a preparation method thereof. The carbon nanotube fireproof material is prepared from the following raw materials in parts by weight: 4to 5 parts of zinc hydroxystannate, 10 to 16 parts of lignin, 49 to 55 parts of carbon nanotube, 240 to 300 parts of caprolactam, 4 to 6 parts of ammonium persulfate, 3 to 5 parts of 2,2-dihydroxymethyl propionic acid, 1 to 2 parts of calcium stearate, 30 to 50 parts of sulfoxide chloride, and 0.1 to 0.14 part of triethylamine. The carbon nanotube fireproof material has the advantages that the carbon nanotube is modified by the lignin; when the carbon nanotube is combusted by fire, a stable carbon layer is formed in the carbon nanotube, so that the fireproof property of the finished materialis improved.

Description

technical field [0001] The invention belongs to the field of fireproof materials, and in particular relates to a carbon nanotube fireproof material and a preparation method thereof. Background technique [0002] Ordinary pure nylon is a combustible material, and it will release a large amount of heat in a short time when it is burned. The combustion is accompanied by thick smoke, and releases CO, CO2, HCN, NH3, CH4, C2H6 and other toxic or flammable gases; and because nylon melts The body strength is low, so it is easy to produce a large number of flaming droplets during the combustion process, causing the fire to spread rapidly; at the same time, the material will release a large amount of heat in a short time after ignition, which is easy to cause secondary combustion. From the perspective of microstructure, the combustion process is explained as follows: firstly, nylon is heated under the action of flame, and when the temperature reaches about 220°C, the nylon lattice is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L97/00C08K9/04C08K3/04C08K5/098C08G69/14C08G69/16
CPCC08L77/02C08G69/14C08G69/16C08K2201/011C08L2201/02C08L97/005C08K9/04C08K9/08C08K3/041C08K5/098
Inventor 杨文颖
Owner 合肥滴答科技有限公司
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