Copper is the most extensively used material in cables and electrical and electronic components because of its durability, ductility, and excellent thermal and electrical conductivity. Alfa Chemistry offers unique functionalized coating services for copper substrates, and copper metal with a functional surface offers significant performance advantages in a number of applications. You can increase the performance of practically any copper-based product with our extensive and simple-to-apply selection of specialist coating treatments. Join together with us to make your copper surfaces more functional!
Alfa Chemistry provides a number of coating technologies that may be used to functionalize the surface of copper substrates, resulting in a number of performance advantages. For copper substrates, we provide a variety of surface modification possibilities.
Above, we can create optically transparent and long-lasting nano-coatings.
Learn more about our hydrophobic and oleophobic coatings.
Learn more about our hydrophilic coatings.
Learn more about our adhesion promotion coatings.
Learn more about our particle-modified coatings.
Learn more about our lubricant coatings.
Case 1: Silver nanoparticle anti-biocorrosion coating
This is a green surface modification method for copper surfaces that improves corrosion resistance, bacterial adhesion, and biocorrosion. 2,2'-Biothiophenes are oxidatively grafted onto copper surfaces to form self-assembled 2,2'-Biothiophene monomolecular layers. Silver ions are then reduced to silver nanoparticles (Ag NPs) on the surface to make homogenous thiophene polymer films with densely linked Ag NPs. The immobilized Ag NPs dramatically reduced bacterial adherence and improved the modified copper surface's antibacterial capabilities.
Case 2: S-N-C doped TiO2 nanocorrosion resistant coating
Alfa Chemistry uses a sol-gel process to cover copper surfaces with nano TiO2 coatings doped with three atoms of nitrogen, sulfur, and carbon, which provide corrosion resistance when deposited on copper substrates.
Fig 1. The SEM images a) bare copper b) coated copper with S-N-C-doped TiO2 nano coating. (Razavi F. S, et al. 2018)
Case 3: Ni-P-nano TiN composite coating
Alfa Chemistry used chemical plating procedures to successfully manufacture Ni-P-nano TiN composite coatings for TL084 copper alloy synchronizer rings. With a sufficient coefficient of friction, the optimized copper alloy has a service life of up to 2 x 105 cycles. The micro TiN particles uniformly distributed in the Ni-P matrix are responsible for the nanocomposite coating's much higher hardness and wear resistance as compared to a typical pure Ni-P coating.
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