3 documents found, page 1 of 1
A review of methods to modify the PDMS surface wettability and their applications
Neves, Lucas B.; Afonso, Inês S.; Nobrega, Glauco; Barbosa, Luiz G.; Lima, Rui Alberto Madeira Macedo; Ribeiro, João E.Polydimethylsiloxane (PDMS) has attracted great attention in various fields due to its excellent properties, but its inherent hydrophobicity presents challenges in many applications that require controlled wettability. The purpose of this review is to provide a comprehensive overview of some key strategies for modifying the wettability of PDMS surfaces by providing the main traditional methods for this modifica...
Conventional and recent advances of vegetable oils as Metalworking Fluids (MWFs...
Afonso, Inês S.; Nobrega, Glauco; Lima, Rui Alberto Madeira Macedo; Gomes, J. R.; Ribeiro, João E.Vegetable oils have been used as metalworking fluids (MWFs) for many years, particularly in small-scale metalworking operations and in industries where environmental regulations are strict. Before the development of modern MWFs, vegetable oils were one of the most common lubricants used for metalworking tools. The use of vegetable oils can be traced back to ancient civilizations such as Egypt, Greece, and Rome,...
Analysis of a vegetable oil performance in a milling process by MQL Lubrication
Afonso, Inês S.; Pereira, José; Ribeiro, António E.; Amaral, Joana S.; Rodrigues, Nuno; Gomes, José R.; Lima, Rui Alberto Madeira Macedo; Ribeiro, JoãoIn this work, we carried out a comparison between the dry machining of an aluminum block with conventional cutting oil and a block with vegetable oil. The two oils had different flow rates. Using the Taguchi method, it was possible to determine the matrices for optimizing the best parameters for each group of tests. Then, we studied the utility of using vegetable oil as a cutting lubricant. We found that the ve...