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Conductive paint is paint coated on a non-conductive substrate and has a specific ability to conduct current and dissipate charges. It is widely used in the modern electronics industry. The conductive ability of the conductive coating can also be used to convert electrical energy into thermal energy for heating residential, industrial and agricultural buildings. In addition, conductive coatings can be used for anti-static, dissipate static electricity and insulation shielding. Moreover, the development of electromagnetic shielding coatings based on conductive coatings is also a significant work.
According to the different conductive mechanisms, conductive coatings can be divided into intrinsic and filled types. The typical representatives are polyphenylamide type coatings and graphene-filled coatings. Traditional conductive coatings achieve the purpose of coating film conductivity by adding conductive substances as additives. Conductive additives are usually metal or metal oxide particles (such as silver powder, copper powder and zinc oxide). The conjugated structure of graphene gives it high electron mobility and excellent electrical properties. Compared with metal or metal oxide particles, graphene not only has good electrical conductivity, but also has excellent mechanical and thermal properties, making it an excellent conductive coating additive. Graphene has both good electrical conductivity and anti-corrosion properties, so it has a good application effect in static conductive coatings. The surface resistance of the electrostatic conductive paint with graphene is usually between 106 and 109, which can effectively prevent electrostatic conduction.
Figure 1. Preparation process conductive graphene coatings. (Pham V. H, et al. 2010)
Figure 2. Highly conductive polypropylene - graphene nonwoven composite via interface engineering. (Pan Q, et al. 2017)
At Alfa Chemistry, we have successfully applied graphene to conductive coatings and made more functional modifications. If you have a specific application that needs to be integrated into a product, material or manufacturing process, our flexible technology can perfectly meet your requirements. We have a good track record of working with global leaders in the construction, chemical and automotive industries. Just contact us to find out how we can work together or integrate our technology into your supply chain.
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Chemical vapor deposition, chemical peeling, graphene modification, graphene transfer and other technologies.
TEM, AFM, XPS, ICP-OES, ICP-MS, EDS, Raman spectroscopy, resMap four point probe and other detection platforms.
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