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Preparation method of white carbon black/graphene oxide nano-hybrid filler, nano-hybrid filler and application of nano-hybrid filler

A technology of white carbon black and graphene, applied in the field of rubber tires, can solve the problems of spray drying process not working normally, clogged pipes, etc., and achieve the effect of improving interaction and uniform dispersion

Active Publication Date: 2019-05-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the patent involves spray drying, it is used to prepare graphene oxide / silica / rubber nanocomposites. The rubber must be in the form of an emulsion, which requires graphene aqueous suspension and / or silica The compatibility of aqueous suspension and rubber emulsion, how to achieve homogeneous compounding, and the requirement of using spray drying is homogeneous, well-flowing liquid, graphene aqueous suspension and / or silica aqueous suspension and When the rubber emulsion is compounded in liquid phase, it may flocculate in advance, and generate particles that block the pipeline, so that the spray drying process cannot be carried out normally.

Method used

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  • Preparation method of white carbon black/graphene oxide nano-hybrid filler, nano-hybrid filler and application of nano-hybrid filler
  • Preparation method of white carbon black/graphene oxide nano-hybrid filler, nano-hybrid filler and application of nano-hybrid filler
  • Preparation method of white carbon black/graphene oxide nano-hybrid filler, nano-hybrid filler and application of nano-hybrid filler

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Experimental program
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Effect test

Embodiment 1

[0055] Stir and mix the silica and water evenly according to the silica mass content of 10%, and use high-speed grinding and dispersing equipment (Shanghai Yiken Machinery Equipment Co., Ltd., model CMXD2000 / 4, output speed 21000rpm, line speed 66m / s, the following implementation Example same) for dispersion, the reaction time is 1 hour, and the reaction temperature is controlled below 10°C to obtain a stable silica slurry with a silica particle size less than 50nm. Then organically modify the prepared white carbon black water slurry in a mechanically stirred 80°C water bath by adding silane coupling agent KH550 dropwise, the amount of KH550 is 10% of the dry powder mass of white carbon black, and the modification time is 3 hours , and then reacted in a high-speed grinding and dispersing equipment for 1 hour, and the temperature was controlled within 10°C to obtain a pretreated silica slurry with a silica particle size of less than 50nm. Graphene oxide and water were stirred a...

Embodiment 2

[0057]Stir and mix silica and water evenly according to the mass content of silica at 10%, and disperse with high-speed grinding and dispersing equipment. The reaction time is 1 hour, and the reaction temperature is controlled below 10°C to obtain stable silica with a particle size of less than 50nm white carbon black water slurry. Then organically modify the prepared white carbon black water slurry in a mechanically stirred 80°C water bath by adding silane coupling agent KH550 dropwise, the amount of KH550 is 10% of the dry powder mass of white carbon black, and the modification time is 3 hours , and then reacted in a high-speed grinding and dispersing equipment for 1 hour, and the temperature was controlled within 10°C to obtain a pretreated silica slurry with a silica particle size of less than 50nm. Graphene oxide and water were stirred and mixed according to the mass content of graphene oxide at 0.1%, dispersed with high-speed grinding and dispersing equipment, reacted fo...

Embodiment 3

[0059] Stir and mix silica and water evenly according to the mass content of silica at 10%, and disperse with high-speed grinding and dispersing equipment. The reaction time is 1 hour, and the reaction temperature is controlled below 10°C to obtain stable silica with a particle size of less than 50nm white carbon black water slurry. Then organically modify the prepared white carbon black water slurry in a mechanically stirred 80°C water bath by adding silane coupling agent KH550 dropwise, the amount of KH550 is 10% of the dry powder mass of white carbon black, and the modification time is 3 hours , and then reacted in a high-speed grinding and dispersing equipment for 1 hour, and the temperature was controlled within 10°C to obtain a pretreated silica slurry with a silica particle size of less than 50nm. Graphene oxide and water were stirred and mixed according to the mass content of graphene oxide at 0.1%, dispersed with high-speed grinding and dispersing equipment, reacted f...

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Abstract

The invention relates to a preparation method of white carbon black / graphene oxide nano-hybrid filler, the nano-hybrid filler and application of the nano-hybrid filler. The preparation method comprises the following steps: carrying out high-speed grinding and dispersion to prepare stable white carbon black slurry modified by a silane coupling agent; then uniformly stirring and grinding and dispersing the modified white carbon black slurry with a graphene oxide / water suspension solution subjected to high-speed grinding and dispersion and / or ultrasonic treatment; connecting white black carbon and graphene oxide through a bridge effect of the silane coupling agent; and then spraying and drying to prepare the white carbon black / graphene oxide nano-hybrid filler. The nano-hybrid filler is filled into any rubber variety through a traditional melting and blending technology to prepare high-performance tire tread. The preparation method and an application technology of the nano-hybrid filler are simple; and when the nano-hybrid filler is applied to rubber, nano-dispersion of graphene in a rubber matrix can be realized and the limitation of the rubber variety can be broken through, so thata composite material has excellent mechanical property, wet slipping resistance, cutting resistance, properties of delaying dynamic and static crack growth, and the like.

Description

technical field [0001] The invention relates to the field of rubber tires, and furthermore, relates to a preparation method of a white carbon black / graphene oxide nano-hybrid filler, a white carbon black / graphene oxide nano-hybrid filler and applications thereof. Background technique [0002] The preparation and application of high-performance rubber-based nanocomposites has become a research hotspot all over the world. The most widely used field of rubber materials is tires, which provide automobiles with the necessary grip and traction for driving, braking and steering. With the development of automobiles in the direction of high speed, safety, energy saving, and comfort, tire treads are required to have good wet skid resistance, excellent wear resistance, low rolling resistance, and strong cutting resistance and fatigue resistance. . [0003] Since the 1990s, the application of silica as a reinforcing filler in tire treads has grown significantly. This is because silica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K9/06C08K3/36C08K3/04B01D1/16
Inventor 吴晓辉李鹏举宋天夫卢咏来张立群
Owner BEIJING UNIV OF CHEM TECH
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