Spectacular Behavior of a Viscoelastic Droplet Impinging on a Superhydrophobic Mesh was written by Abouei Mehrizi, Abbasali;Lin, Shiji;Sun, Lijie;Chen, Longquan. And the article was included in Langmuir in 2022.Electric Literature of CuH2O2 This article mentions the following:
Spray formation using the droplet impact on the superhydrophobic mesh surfaces is particularly important due to its application in different industries. The present study revealed that adding a trivial amount of the poly(ethylene oxide)s (PEO) polymer to the water droplet can considerably change the impact phenomena on the superhydrophobic mesh surfaces and suppress the spray formation. Droplet rebound is only observed in a narrow range of impact velocities of PEO aqueous droplets when the tiny filaments still connect the surface and droplet. Rebound suppression and deposition of the PEO aqueous droplet is attributed to the higher interaction between the polymer chains and the superhydrophobic mesh surface. After a critical impact velocity and We number which is independent of the PEO concentration, the liquid penetrates the mesh pores. The penetrated liquid formed the ligaments that grow until they reach the maximum length and surprisingly retract back to the mesh surface and the mother droplet. The ligaments destabilized at low PEO concentrations (c = 0.5, 1 g/L) and mesh opening size H = 357μm to the crest swell droplets when the droplet size is reduced by increasing the impact velocity. The ligament fragmentation and droplet detachment are only observed at high impact velocities when c = 0.5, 1 g/L, and H = 357μm. The result shows that the PEO additive does not significantly affect the maximum spreading dynamics. An empirical model to calculate the maximum spreading diameter is developed. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Electric Literature of CuH2O2).
Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Electric Literature of CuH2O2
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”