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Tire pyrolysis carbon black modification method, modified pyrolysis carbon black and tire

A carbon black and modification technology, applied in chemical instruments and methods, inorganic pigment treatment, dyeing physical treatment, etc., can solve the problem of poor reinforcement performance of cracked carbon black

Inactive Publication Date: 2020-10-23
珠海格力绿色再生资源有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a modification method of pyrolysis carbon black for tires and modified pyrolysis carbon black and tire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Grinding, grinding tire pyrolysis carbon black to ensure that the 45um water washing sieve residue of pyrolysis carbon black is less than or equal to 500mg / kg;

[0044] (2) Sizing, mix the ground tire pyrolysis carbon black with water to make a water dispersion with a concentration of 80g / L; add absolute ethanol, anhydrous ethanol: pyrolysis carbon black mass ratio 1:10, mechanical stirring 100r / min, stirring for 3 minutes to obtain carbon black slurry;

[0045] (3) Ultrasonic dispersion, the carbon black slurry is placed in an ultrasonic disperser for ultrasonic dispersion to obtain a dispersed carbon black slurry; the dispersion power of the ultrasonic dispersion machine is 3000W, and the dispersion time of the ultrasonic dispersion machine is 10min;

[0046] (4) Aging modification, dispersing carbon black slurry in a 60℃ water bath, adding 30% H 2 O 2 , 30% H 2 O 2 :Pyrolysis carbon black, mass ratio 1:1, aging for 1h;

[0047] (5) Vacuum filtration, after aging and mod...

Embodiment 2

[0051] (1) Grinding: grind the tire pyrolysis carbon black to ensure that the 45um water washing sieve residue of the pyrolysis carbon black is less than or equal to 500mg / kg;

[0052] (2) Sizing, mix the ground pyrolysis carbon black with water to make an aqueous dispersion with a concentration of 100g / L; add anhydrous ethanol, anhydrous ethanol: pyrolysis carbon black mass ratio 1:8, mechanical stirring 100r / min, stirring for 3 minutes to obtain carbon black slurry;

[0053] (3) Ultrasonic dispersion, the carbon black slurry is placed in an ultrasonic disperser for ultrasonic dispersion to obtain a dispersed carbon black slurry; the dispersion power of the ultrasonic dispersion machine is 4000W, and the dispersion time of the ultrasonic dispersion machine is 20min;

[0054] (4) Aging modification, dispersing carbon black pulp in a 60℃ water bath, adding 20% ​​H 2 O 2 , 20% H 2 O 2 :Pyrolysis carbon black, mass ratio 1:1, aging for 1h;

[0055] (5) Drying, drying at 60-80℃ after agi...

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Abstract

The invention discloses a tire pyrolysis carbon black modification method. The modification method comprises the following steps: a, mixing tire pyrolysis carbon black powder with a dispersing agent to obtain carbon black ore pulp; b, mixing the carbon black ore pulp with hydrogen peroxide, and carrying out aging modification; c, carrying out dehydration treatment on the aged modified product to obtain dehydrated solids; and d, carrying out microwave heating on the dehydrated solids under inert gas purging. The invention also discloses the modified pyrolysis carbon black obtained by the tire pyrolysis carbon black modification method. The invention also discloses a tire comprising the modified cracked carbon black.

Description

Technical field [0001] The present invention relates to the technical field of resource recovery and utilization, in particular to a method for modifying tire pyrolysis carbon black, modified pyrolysis carbon black and tires. Background technique [0002] With the rapid development of society, there are more and more waste rubber tires. Because they are difficult to degrade in nature and cause great pollution to the environment, people are committed to seeking an ideal solution. Pyrolysis of waste tires is considered to be the most commonly used method for recycling waste tires. The main products of pyrolysis treatment of waste tires include pyrolysis carbon black, pyrolysis oil and pyrolysis gas. Pyrolysis carbon black is a by-product of the pyrolysis process of waste tires. The main components include carbon black originally filled in tires, fillers in rubber formulations (inorganic fillers, white carbon black, zinc oxide, etc.), residues from rubber pyrolysis, and after conde...

Claims

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Application Information

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IPC IPC(8): C09C1/56C09C1/48C09C3/04C09C3/06C09C3/08C08K9/02C08K9/00C08K3/04
CPCC08K3/04C08K9/00C08K9/02C09C1/482C09C1/565C09C3/006C09C3/04C09C3/041C09C3/043C09C3/06C09C3/08
Inventor 张青陈龙王九飙姚璎珈罗云杨圣月
Owner 珠海格力绿色再生资源有限公司
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