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公开(公告)号：US20170307536A1
公开(公告)日：2017-10-26
申请号：US15521374
申请日：2015-10-26
发明人： Raymond Giles Dillingham , Brietta Rose Oakley , Lucas Hale Dillingham , Andrew Davis Gilpin , Frances Charles Ganance , Timothy James Barry , Harun Mohammed
摘要： A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
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公开(公告)号：US10801966B2
公开(公告)日：2020-10-13
申请号：US15521374
申请日：2015-10-26
发明人： Raymond Giles Dillingham , Brietta Rose Oakley , Lucas Hale Dillingham , Andrew Davis Gilpin , Francis Charles Ganance , Timothy James Barry , Harun Mohammed
摘要： A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.
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