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Modified carbon black applied to coloring spinning resin and preparation method thereof

A technology of modified carbon black and modified carbon, which is applied in the preparation/purification of carbon, adding pigments in spinning solution, etc., which can solve the problem of low reaction grafting rate, difficult product quality to achieve the desired result, and inability to directly Apply resin fiber coloring and other problems to achieve the effect of easy dispersion

Active Publication Date: 2021-03-09
SHENYANG RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose and advantages are relatively obvious. The disadvantage is that the reaction grafting rate is low. Due to the inertness and porosity of carbon black itself, it will have a greater steric hindrance to the reactive group. When reacting with polymers, impurities Impossible to remove, the product quality is difficult to achieve the desired result
[0006] None of the above methods can be directly applied to the coloring of resin fibers, especially the dope coloring of filament fibers and fine denier filaments.

Method used

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  • Modified carbon black applied to coloring spinning resin and preparation method thereof
  • Modified carbon black applied to coloring spinning resin and preparation method thereof
  • Modified carbon black applied to coloring spinning resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) carbon black grafting reaction

[0045] The reaction formula is:

[0046]

[0047]In a 1000 mL four-necked flask, 200 g of carbon black, 70 g of p-(β-ethylsulfone sulfate) aniline and 600 g of deionized water were added. Raise the temperature to 40° C., keep the temperature and react for 30 minutes, then gradually add 80 g of 25% sodium nitrite solution in portions, and react at this temperature for 3 hours. The particle size monitoring is detected by a nanometer particle size zeta potential analyzer, and the test particle size is D90=120nm. The test pH was 4-5, and there was no residue after filtering through a 0.25 μm membrane, and the grafting was considered successful. Proceed to the next experiment.

[0048] (2) Second group grafting

[0049]

[0050] Put the sand-milled material (particle size D90=105nm) into a 2000ml four-neck bottle, add 176g of 15% sodium carbonate solution under stirring, the feeding speed is 4ml / min, heat to 40°C after adding, k...

Embodiment 2

[0052] (1) carbon black grafting reaction

[0053] The reaction formula is:

[0054]

[0055] In a 1000 mL four-necked flask, 200 g of carbon black, 70 g of p-(β-ethylsulfone sulfate) aniline and 600 g of deionized water were added. Raise the temperature to 40° C., keep the temperature and react for 30 minutes, then gradually add 80 g of 25% sodium nitrite solution in portions, and react at this temperature for 3 hours. The particle size monitoring is detected by a nanometer particle size zeta potential analyzer, and the test particle size is at D90=125nm. The test pH was 4-5, and there was no residue after filtering through a 0.25 μm membrane, and the grafting was considered successful. This material can be used as the first reactant for PP stock solution coloring. If materials for fine denier filaments are required, sand milling is required, and the above materials are directly added to the hopper of a horizontal sand mill, using 0.6-0.8mm zirconium beads, sanding for ...

Embodiment 3

[0060] (1) carbon black grafting reaction

[0061] The reaction formula is:

[0062]

[0063] In a 1000 mL four-necked flask, 200 g of carbon black, 30 g of p-(β-ethylsulfone sulfate) aniline and 600 g of deionized water were added. Stir at room temperature (measured at 15° C.), keep warm for 30 minutes, then gradually add 73.5 g of 15% sodium nitrite solution in portions, and react at this temperature for 5 hours. The particle size monitoring is detected by a nanometer particle size zeta potential analyzer, and the test particle size is at D90=125nm. The pH of the test was 4.5, and there was no residue after filtering through a 0.25 μm membrane, and the grafting was considered successful. Put the above materials directly into the feeding hopper of a horizontal sand mill, use 0.6-0.8 mm zirconium beads, and sand them in a single cycle for 1 hour. The particle size D90=110nm is detected by a nano-particle size zeta potential analyzer, and the next experiment is carried out...

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Abstract

The invention belongs to a modified carbon black colorant and preparation thereof, and particularly relates to modified carbon black applied to spinning resin coloring and a preparation method thereof. The modified carbon black is represented by a formula I, wherein in the formula I, a symbol . shown in the formula is carbon black, and R is C1-C30 straight-chain alkyl, branched-chain alkyl or C1-C10 alkylbenzene. The colorant is suitable for coloring resin, the colorant is blue-light black, colorant particles are soft, the easy-to-disperse performance of the colorant is detected by a scraper fineness instrument, and the easy-to-disperse performance of the colorant is more obvious than that of carbon black before modification.

Description

technical field [0001] The invention belongs to a modified carbon black colorant and its preparation, in particular to a modified carbon black used in spinning resin coloring and a preparation method thereof. Background technique [0002] The stock solution coloring method is to add a suitable colorant to the spinning solution, which is fully mixed, dissolved and filtered. It can also be quantitatively injected into the colorant or colored stock solution before entering the spinneret, and then spun into a colored product after being mixed by a static mixer. fiber. This process belongs to physical change, and its advantages are that coloring and spinning can be carried out continuously at the same time, uniform coloring, good color fastness, high dyeing rate, short production cycle, low cost and less pollution. It can color some highly oriented, non-polar and difficult-to-dye fibers, such as polyester and polypropylene. Its colorants include inorganic and organic pigments, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05D01F1/04
CPCC01B32/05D01F1/04
Inventor 李文骁邢颖李学敏丛麟权马瑛
Owner SHENYANG RES INST OF CHEM IND
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