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ATS nano dispersion machine - graphene oxide dispersion preparation


First, graphene introduction


Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms in a hexagonal honeycomb lattice with sp² hybrid orbitals.

 It has excellent optical, electrical and mechanical properties, and has important application prospects in materials science, micro and nano

 processing, energy, biomedicine and drug delivery.

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                     Diagram of graphene forming fullerenes, carbon nanotubes and graphite


Graphene oxide


graphene oxide (graphene oxide) is an oxide of graphene, which is generally obtained from the oxidation of graphite by strong acids. After oxidation, 

the oxygen-containing functional groups on it are increased and the properties are more active than graphene, and the properties can be improved by 

various reactions with oxygen-containing functional groups.

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                                                                           graphene

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                                                                           Graphene oxide

3. Application fields


➤ Analyze and test applications


The Shanghai Institute of Applied Physics of the Chinese Academy of Sciences found that the application of graphene oxide in PCR technology 

can significantly improve the specificity, sensitivity and amplification yield of PCR, and can eliminate primer dimers formed in amplification, and 

the optimization range is wide, and can be widely used in various concentrations and complexity of DNA templates. It can also be used for catalytic

 decomposition of fuel molecules and detection of harmful chemicals such as TNT, Pb2+ and Cd2+.


➤ Biomedical applications


The high specific surface area and wide range of conjugated structures of graphene oxide make it have certain potential application value in the

 carrier surface.


➤ Polymer composites


Graphene oxide can be processed in solution after being functionalized, which is very suitable for the preparation of high-performance polymer 

composites.


➤ Photoelectric related applications


Simple conductive polymer has poor stability in charge and discharge cycle. The conductive synergistic effect of graphene oxide and conductive 

polymer conjugate structure can enhance the conductivity of the matrix and realize the structural enhancement at the same time.


➤ Heat conduction applications


The high thermal conductivity and large specific surface area undoubtedly lay the foundation for its use as a thermal conductivity material. At the 

same time, the active site on the reduced graphene oxide improves its usability, and the stable conjugate structure makes it work at high temperatures,

 which will greatly improve the service life of the product.

4. ATS experiment



Experimental instrument


ATS nano dispersion machine


Water cooler


Laser particle size analyzer


Experimental technology


ATS nano dispersion machine 800bar treatment twice


Experimental purpose


Due to the large viscosity of graphene oxide, it is difficult to directly coat, and it needs to be dispersed to facilitate further processing


Experimental result


The laser particle size analyzer report showed that the particle size of graphene oxide dispersed by the ATS nanodispersion machine 

decreased significantly, D50 decreased to 11.09um, and the initial particle size of D90 decreased to 20.93um



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                                                                     predispersion

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                                                              post-dispersion