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A method for preparing carbon microspheres with split hierarchical structure

A hierarchical structure, carbon microsphere technology, applied in the direction of nano-carbon, recycling technology, ink, etc., can solve the problems of plastic environmental pollution, achieve good electrical conductivity, and solve the effect of environmental pollution problems

Active Publication Date: 2022-05-17
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem solved by the present invention is: in order to solve the environmental pollution problem caused by the increasingly serious plastics in the prior art, waste plastics are reused to prepare carbon microsphere materials with good electrical conductivity

Method used

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  • A method for preparing carbon microspheres with split hierarchical structure
  • A method for preparing carbon microspheres with split hierarchical structure
  • A method for preparing carbon microspheres with split hierarchical structure

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preparation example Construction

[0044] The present invention also provides a preparation method of the carbon microspheres, which includes the following steps:

[0045] Step 1: Wash and dry the waste plastic;

[0046] Step 2: Heat and mix the waste plastic obtained in Step 1, absolute ethanol and an activator, and then add a catalyst for reaction;

[0047] Step 3: Add degradation agent to the system obtained in step 2 to continue the reaction, and then leave it to cool;

[0048] Step 4: Dry the product obtained in Step 3 and continue calcining to obtain the carbon microspheres.

[0049] Preferably, in the step 1, the waste plastics are cleaned by ultrasonic waves, and then the water is filtered by a mesh screen; preferably, the above-mentioned process is repeated three times.

[0050]The present invention also provides the carbon microspheres prepared by the above method.

[0051] The present invention also provides the application of the carbon microspheres in conductive inks, adsorption materials, catal...

Embodiment 1

[0067] 1. Cut 50g of recycled waste plastic into flakes, place them in a beaker, pour 50g of deionized water into the beaker and stir with a glass rod, put the beaker into an ultrasonic cleaner for cleaning for 1 hour, and then discard the waste in the beaker Pour out the plastic and filter through a 120-mesh sieve to remove water. Repeat the above process 3 times, and finally put the discarded plastic pieces in a 120-mesh sieve to dry, and after 24 hours of natural air-drying in the air, put them in a vacuum drying oven with a vacuum degree of 0.05MPa and a temperature of 50°C Dry for 8 hours;

[0068] 2. Put the measured waste plastic pieces and 10g of absolute ethanol into a three-necked flask connected with a stirring device, place it in an oil bath heating device, add 20g of simethicone to the three-necked flask, and raise the temperature to 180 ℃-200℃, stir and mix, after 90 minutes, drop 1g of n-butyl titanate into the mixed system, and react the system for 2 hours und...

Embodiment 2

[0072] 1. Cut 70g of recycled waste plastic into flakes, place them in a beaker, pour 70g of deionized water into the beaker and stir with a glass rod, put the beaker into an ultrasonic cleaner for 1 hour, and then discard the waste in the beaker Pour out the plastic and filter through a 120-mesh sieve to remove water. Repeat the above process 3 times, and finally put the discarded plastic pieces in a 120-mesh sieve to dry, and after 24 hours of natural air-drying in the air, put them in a vacuum drying oven with a vacuum degree of 0.05MPa and a temperature of 50°C Dry for 8 hours;

[0073] 2. Put the measured waste plastic pieces and 15g of absolute ethanol into a three-necked flask connected with a stirring device, place it in an oil bath heating device, add 40g of simethicone to the three-necked flask, and raise the temperature to 180 ℃-200℃, stirring and mixing, after 90 minutes, drop 4g of n-butyl titanate into the mixed system, and the system reacted for 2 hours under s...

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Abstract

The present invention provides a carbon microsphere, which is characterized in that the structure of the carbon microsphere is a split hierarchical structure, and the split hierarchical structure of the carbon microsphere is incomplete nano-spheroids connected in series, and the carbon microsphere The average particle size of the balls is less than 1 micron, the electrical resistance of the carbon microspheres is ≤24Ω, and the surface flatness of the carbon microspheres is 1.8-2.3 microns. The micro-nano carbon microspheres prepared by the invention have good electrical conductivity. The raw materials for the preparation of carbon microspheres come from waste plastics. To solve the environmental pollution problem caused by increasingly serious plastics, the waste plastics are reused to prepare carbon microsphere materials with good electrical conductivity.

Description

technical field [0001] The invention belongs to the fields of high-value conversion of plastics, resource reuse and preparation of carbon microsphere micro-nano materials, and relates to a method for preparing carbon microspheres with a split hierarchical structure. Background technique [0002] Due to its superior mechanical properties, anti-friction and wear properties, in addition to its creep resistance, rigidity and hardness, it is non-toxic and tasteless, with good transparency and high surface gloss. Therefore, plastic products are widely used in many fields such as food packaging, film, fiber, film base and electrical insulation materials. The large-scale use of plastics in many fields has also brought about huge environmental problems. According to reports, since nylon 66 was synthesized and successfully industrialized, various plastic products have rapidly occupied the market due to their excellent performance. It has become a persistent disease in the field of s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/15C09D11/52
CPCC01B32/15C09D11/52Y02W30/62
Inventor 周星李亚新李旭阳何鑫玉
Owner XIAN UNIV OF TECH
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