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Graphene oxide pre-dispersion mixing process in banbury production process

A production process and graphene technology, applied in the field of graphene oxide pre-dispersion and mixing process, can solve the problems affecting various properties of the rubber compound, aggregation, poor dispersibility, etc., and achieve no dust splash, simple process, and strong adhesion. Effect

Active Publication Date: 2017-07-25
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If graphene oxide is directly added to the internal mixer, the dispersibility is poor, which may cause local aggregation and affect various properties of the rubber compound.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a graphene oxide pre-dispersion mixing process in the production process of banburying, comprising the following steps:

[0022] (1) Dissolving graphene oxide in water to obtain a graphene oxide aqueous solution, the mass percent concentration of the graphene oxide aqueous solution is 2‰;

[0023] (2) The graphene oxide aqueous solution was ultrasonically treated for 1 hour, and the ultrasonic power was 1500W;

[0024] (3) Pour the graphene oxide aqueous solution into the release agent pool;

[0025] (4) After the rubber material is pressed into tablets, it is transported to the release agent pool through the conveyor belt, immersed in the graphene oxide aqueous solution, so that the graphene oxide aqueous solution is evenly coated on the surface of the rubber material, and then dried by the drying system to fall off; The impregnation temperature is 30°C;

[0026] (5) Carry out a stage of mixing process after falling off. The mixing process adopts the ex...

Embodiment 2

[0028] Embodiment 2: a graphene oxide pre-dispersion mixing process in the production process of banburying, comprising the following steps:

[0029] (1) Dissolving graphene oxide in water to obtain graphene oxide aqueous solution, the mass percent concentration of graphene oxide aqueous solution is 3‰;

[0030] (2) The graphene oxide aqueous solution was ultrasonically treated for 2 hours, and the ultrasonic power was 500W;

[0031] (3) Pour the graphene oxide aqueous solution into the release agent pool;

[0032] (4) After the rubber material is pressed into tablets, it is transported to the release agent pool through the conveyor belt, immersed in the graphene oxide aqueous solution, so that the graphene oxide aqueous solution is evenly coated on the surface of the rubber material, and then dried by the drying system to fall off; The impregnation temperature is 60°C;

[0033] (5) Carry out a stage of mixing process after falling off. The mixing process adopts the existing...

Embodiment 3

[0035] Embodiment 3: a graphene oxide pre-dispersion mixing process in the production process of banburying, comprising the following steps:

[0036] (1) Dissolving graphene oxide in water to obtain graphene oxide aqueous solution, the mass percent concentration of graphene oxide aqueous solution is 2.5‰;

[0037] (2) The graphene oxide aqueous solution was ultrasonically treated for 1.5 hours, and the ultrasonic power was 1000W;

[0038] (3) Pour the graphene oxide aqueous solution into the release agent pool;

[0039] (4) After the rubber material is pressed into tablets, it is transported to the release agent pool through the conveyor belt, immersed in the graphene oxide aqueous solution, so that the graphene oxide aqueous solution is evenly coated on the surface of the rubber material, and then dried by the drying system to fall off; The impregnation temperature is 50°C;

[0040] (5) Carry out a stage of mixing process after falling off. The mixing process adopts the exi...

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Abstract

The invention relates to a pre-dispersion and mixing process for graphene oxide in the process of internal mixing. The pre-dispersion and mixing process is characterized by comprising the following steps: (1) dissolving graphene oxide in water so as to obtain an aqueous graphene oxide solution with a mass percentage concentration of 0.2 to 0.3%; (2) subjecting the aqueous graphene oxide solution to ultrasonic treatment for 1 to 2 h, wherein ultrasonic power is 500 to 1500 W; and (3) carrying out multi-stage mixing on a tabletted rubber compound, wherein the surface of the rubber compound is uniformly covered with the aqueous graphene oxide solution before each stage of mixing, and blow-drying by a drying system and blanking are carried out before mixing. The aqueous graphene oxide solution is maintained neutral. In the step (3), the surface of the rubber compound is uniformly covered with the aqueous graphene oxide solution in such a manner that the rubber compound is immersed in the aqueous graphene oxide solution treated in the step (2). The process provided by the invention can greatly improve the dispersity of graphene oxide in a mixed rubber compound, so dispersion of graphene oxide in the mixed rubber compound is greatly improved.

Description

technical field [0001] The invention relates to a graphene oxide pre-dispersion mixing process in the production process of banburying, and belongs to the technical field of rubber mixing process. Background technique [0002] The addition of graphene oxide to rubber materials can greatly improve various mechanical properties. The laboratory generally uses the solvent method for dispersion, and the dispersion effect is ideal. However, in actual production, especially in the internal mixing workshop, the method of directly adding various small materials into the internal mixer for mixing is generally adopted. If graphene oxide is directly added to the internal mixer, the dispersibility is poor, which may cause local aggregation and affect various properties of the rubber compound. Therefore, the development of a mixing process suitable for the dispersion of graphene oxide in the internal mixing workshop has become the primary problem to be solved in the application of graph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08K3/04C08J3/00
CPCC08J3/005C08J2321/00C08K3/04
Inventor 朱健鹏张洪学刘宇艳
Owner JIANGSU GENERAL SCI TECH
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