Method for preparing graphene masterbatch by water-phase synergistic coagulation process and forming long-service-life loading wheel tire of heavy vehicle

A graphene and ene masterbatch technology, which is applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problems that it is difficult to obtain high graphene content masterbatch, graphene oxide and latex have a large difference in specific gravity, and achieve the preparation process Green environmental protection, excellent dispersion effect, and the effect of reducing production cost

Pending Publication Date: 2022-06-07
ZHONGBEI UNIV +1
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific gravity difference between graphene oxide and latex is large, and graphene oxide sheets will stack on each other due to π-π adsorption
Therefore, it is difficult to obtain a high graphene content masterbatch with uniform dispersion of components by conventional emulsion blending method

Method used

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  • Method for preparing graphene masterbatch by water-phase synergistic coagulation process and forming long-service-life loading wheel tire of heavy vehicle
  • Method for preparing graphene masterbatch by water-phase synergistic coagulation process and forming long-service-life loading wheel tire of heavy vehicle
  • Method for preparing graphene masterbatch by water-phase synergistic coagulation process and forming long-service-life loading wheel tire of heavy vehicle

Examples

Experimental program
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preparation example Construction

[0025] ①Preparation of graphene oxide aqueous dispersion: add an anionic surfactant to water, and after thorough mixing, add graphene oxide, and after uniform dispersion, adjust the pH value of the obtained graphene oxide aqueous dispersion to 10 to obtain oxidized graphene oxide. Graphene water dispersion;

[0026] ②Preparation of modified graphene oxide aqueous dispersion: add the surface modifier into the water, after fully mixing, add the graphene oxide dispersion prepared in step 1 into it, then add the activator and catalyst, and react for 6-48h, A stably dispersed modified graphene oxide aqueous dispersion is obtained;

[0027] (3) Preparation of graphene masterbatch by water-phase synergistic coagulation process: adding deionized water to natural latex, then adding the modified graphene oxide aqueous dispersion prepared in step (2), and fully mixing to obtain a uniformly dispersed mixed emulsion. The stable graphene oxide particles will form binding particles with the...

Embodiment 1～4

[0040] The specific execution steps in Embodiments 1 to 4 are:

[0041] ①Add 2g of anionic surfactant alkylbenzene sulfonate into 100ml of water, stir for 10min, then add 1g, 2g, 3g, 4g of graphene oxide powder respectively, and disperse for 30min to obtain a uniform graphene oxide dispersion, Then add 10wt.% ammonia water to it, adjust the pH value to 10, obtain the graphene oxide dispersion liquid of required concentration;

[0042] ②Preparation of modified graphene oxide aqueous dispersion: add 1g of surface modifier L-cysteine ​​to 50ml of hot water, and after the solution is cooled to room temperature, add the graphene oxide dispersion prepared in step ① Add it, stir, add activator 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride 0.02g, catalyst N-hydroxysuccinimide 0.02g, stir and react for 8h to obtain Well-dispersed modified graphene oxide dispersion;

[0043] ③Preparation of graphene masterbatch by water-phase synergistic coagulation process: adding a cer...

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Abstract

The invention relates to a method for preparing graphene masterbatch by a water-phase synergistic coagulation process and a method for forming a long-service-life loading wheel tire of a heavy vehicle. According to the invention, the graphene oxide aqueous dispersion and the natural latex are taken as raw materials, the graphene masterbatch with high graphene content and good dispersion is prepared by adopting an efficient and simple water-phase synergistic coagulation process convenient for industrial production, and the invention further provides a process for preparing a long-service-life loading wheel tire of a heavy vehicle by taking the prepared graphene masterbatch as a raw material. The graphene master batch and the solid natural rubber block rubber are subjected to two-stage high-temperature mechanical blending, so that the graphene has good dispersity in the final rubber composite material. Particularly, according to the rubber product prepared by adopting a high-concentration nano filler master batch mode, the mechanical property is ensured, and meanwhile, the manpower, raw materials and transportation cost can be saved to a great extent, so that the production cost is greatly reduced. In addition, dust pollution in the rubber mixing stage can be avoided, so that the rubber mixer is more environment-friendly.

Description

technical field [0001] The invention belongs to the field of functional rubber composite materials, and in particular relates to a method for preparing graphene masterbatch and a long-life heavy-duty vehicle road wheel tire by an aqueous phase synergistic coagulation process. Background technique [0002] At present, rubber has become one of the key materials to support and promote social development, and it is an important pillar and foundation of the national economy and national defense industry. The development trend of modern tires toward high speed, high strength, low energy consumption and multi-function requires the development of rubber materials for high performance and new functions. As a rubber filler, graphene has attracted much attention in both industrial production and scientific research. At present, the application of new functional carbon materials in rubber to prepare composite materials with special properties has attracted extensive attention of resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/02C08K9/04C08K3/04C08L7/00C08K3/22C08K3/06C08J3/22
CPCC08J3/226C08L7/00C08J2307/00C08J2407/02C08K9/04C08K3/042C08L7/02C08K3/22C08K3/04C08K3/06C08L2310/00B60C1/00B60C1/0016B60C1/0025B60C2200/06C08J3/22C08J2307/02
Inventor 赵贵哲段晓圆刘亚青程帅帅贺杰李志伟
Owner ZHONGBEI UNIV
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