Insight into Mocha Diffusion Occurring during Ethanol Droplet Spreading on Acrylic Paint

Mocha diffusion, a significant interfacial phenomenon in pottery painting, remains insufficiently understood in the documented literature regarding its dynamics. This study experimentally investigates Mocha patterns by quantitatively dripping ethanol droplets onto an acrylic paint surface. Results i...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - (2024) vom: 12. Sept.
1. Verfasser: Wu, Zhihao (VerfasserIn)
Weitere Verfasser: Zhang, Li, Yang, Lei, Yu, Hong, Wang, Diansheng, Lu, Bin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Mocha diffusion, a significant interfacial phenomenon in pottery painting, remains insufficiently understood in the documented literature regarding its dynamics. This study experimentally investigates Mocha patterns by quantitatively dripping ethanol droplets onto an acrylic paint surface. Results indicate that the spreading radius increases with the ethanol mass fraction, while the fractal period decreases. The fractal dimension of all Mocha patterns approximates 1.4087. Marangoni flow, generated by the volatilization of ethanol, is crucial for the growth and fractal formation of the "dendrites" in this spreading. The scaling analysis is used to interpret the spreading dynamics. This work encourages the interface science community to develop a comprehensive theory for the dynamics of Mocha diffusion and highlights the potential of this intriguing decorative technique 
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700 1 |a Yang, Lei  |e verfasserin  |4 aut 
700 1 |a Yu, Hong  |e verfasserin  |4 aut 
700 1 |a Wang, Diansheng  |e verfasserin  |4 aut 
700 1 |a Lu, Bin  |e verfasserin  |4 aut 
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