Preparation of self-dispersing reactive nano carbon powder and method for dyeing cotton fabric by using self-dispersing reactive nano carbon powder

A technology of nano-carbon powder and dyeing method, applied in the field of textiles, can solve the problems of high energy consumption efficiency and great environmental harm, etc.

Active Publication Date: 2022-03-25
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because traditional dyes have some insurmountable shortcomings, such as greater environmental hazards, high energy consumption efficiency, and limited use of dyed fabrics within a certain range, it is worthwhile for our researchers to prepare and study new and excellent dyes. focus of attention

Method used

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  • Preparation of self-dispersing reactive nano carbon powder and method for dyeing cotton fabric by using self-dispersing reactive nano carbon powder
  • Preparation of self-dispersing reactive nano carbon powder and method for dyeing cotton fabric by using self-dispersing reactive nano carbon powder
  • Preparation of self-dispersing reactive nano carbon powder and method for dyeing cotton fabric by using self-dispersing reactive nano carbon powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Add 4-nitrobenzyl chloride (0.0857mol) and absolute ethanol (50mL) into a single-necked flask, stir at room temperature to obtain a 4-nitrobenzyl chloride solution, and then slowly drop trimethylbenzyl into the 4-nitrobenzyl chloride solution Amine solution (0.12855mol), stirred at 45°C, the stirring parameter was 90rpm, and the stirring time was 15min, then condensed and refluxed, reacted for 2h, and removed ethanol, water and unreacted trimethylamine by rotary evaporation (90-95°C), washed with acetone, After filtration, the resulting crude product was recrystallized in ethanol, filtered and dried in vacuo to remove ethanol to obtain Compound A.

[0057] Compound A (0.0446 mol) was dissolved in absolute ethanol (200 mL) to obtain solution A. SnCl 2 2H 2 O (0.1561mol) and hydrochloric acid (36%, 1.44mol) were added into the three-necked flask, stirred at room temperature to obtain SnCl 2 solution. Solution A slowly drop by drop into SnCl 2 in solution. Stir at 45...

Embodiment 2

[0060] In this paper, the silane coupling agent KH550 is used to graft on the surface of carbon nano powder, and the silane coupling agent KH550 (2 mmol) and ammonia water (28%, 1 mL) are dissolved in 90% ethanol water (100 g). Add nano-carbon powder (5g) and ultrasonicate for 60min. Then, the suspension was continuously stirred and reacted at 40° C. for 20 h, and the precipitate was centrifuged and washed three times with absolute ethanol. Finally, dry at 60° C. for 12 hours and grind into powder to obtain amino-modified nano-carbon powder.

Embodiment 3

[0062] Compound C (2 mmol) and CB / KH550 (0.5 g) were continuously dispersed in acetone (20 mL). Slowly add sodium carbonate solution (15%) to adjust the pH to 5-6, then continuously stir at 40°C for 2h at a stirring speed of 100rpm, remove acetone by centrifugation of the precipitate, wash with absolute ethanol and centrifuge three times, and dry at 45°C to obtain Self-dispersing reactive nano carbon powder.

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Abstract

The invention provides a preparation and dyeing method of self-dispersing nano carbon powder. The preparation and dyeing method comprises the following steps: preparing a compound A, preparing a compound B, preparing a compound C, preparing amino modified CB, preparing the self-dispersing nano carbon powder, and preparing a dyed CB dyed cotton fabric finished product. According to the preparation and dyeing method of the self-dispersing nano carbon powder, on the basis of ensuring the performance, the advantages of small environmental harm and low energy consumption rate are realized.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to the preparation of self-dispersing reactive nanometer carbon powder and its dyeing method for cotton fabrics. Background technique [0002] Carbon powder is an important chemical raw material and the most important black pigment colorant. It is a fine black powdery substance produced by incomplete combustion or cracking of hydrocarbon substances, mainly composed of carbon elements, with a carbon content of more than 90%. It has good colorability, weather resistance and chemical stability, and is widely used in industries such as coatings, plastics and printing inks. However, the primary particle size of carbon powder is only tens of nanometers, and the relatively strong van der Waals force makes the powder reunite. At the same time, there are few polar genes on the surface of the carbon powder, which is not easy to wet, so it is difficult to disperse stably in the water-based s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/60D06P1/673
CPCD06P3/60D06P1/673
Inventor 田家龙于文慧陈雨洁王春霞祁珍明马志鹏贾高鹏高大伟刘丽
Owner YANCHENG INST OF TECH
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