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Foam stability frequently refers to foam that has been left under static conditions to deteriorate over time. Foams, however, are subjected to countless deformations in daily life. The foam’s capacity to withstand deformation and regain its original properties after deformation is an indicator of its stability.
The method described here enables a qualitative assessment of the foam recovery property following a deformation in a flow-focusing microfluidic device. By using an analog of a common three-step test, in which the recovery of viscosity is typically tested during three deformation phases, the hysteretic behaviour of foam was assessed.
A variety of Newtonian aqueous solutions containing 5 cmc (critical micellar concentration) sodium dodecyl sulphate make up the samples under investigation (SDS). Due to the rise in viscosity, hysteresis was seen as a result of a retardation effect.
Due to an excess of elastic energy brought on by the lengthening of the bubble rearrangements, a higher surface elasticity resulted in a decreased, but still discernible, hysteresis. The current work has made some progress in deepening our comprehension of the processes that initiate or intensify foam hysteresis in a microchannel.
The results will be relevant to numerous industrial processes, from food industry applications to biological systems, where foams are subjected to a number of deformation phases along the process line.
The Global EV Thixotropic Foam market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
Materials called foam are created by encasing pockets of gas in a liquid or solid. A class of lightweight cellular engineering materials are solid foams.
Its manufacture mostly uses polyurethane, polystyrene, phenolic, and polyvinyl chloride chemical resins. Foams can be roughly categorized as flexible or stiff foams depending on their cell architecture, such as open or closed cells.
They provide insulation for materials and protect them against corrosion, impact, temperature change, and abrasion. Foams are lightweight, non-toxic, and hypoallergenic, which are all great benefits.
They consequently find extensive usage throughout a wide range of industrial verticals, including those for furniture, building, packaging, electronics, aerospace, and, among others, medical. The adaptability of PU foam is advantageous to both the automotive and construction industries.
