简介:Contact angles are well established as a
sensitive means of contamination detection
on surfaces. These measurements are
straightforward on flat, solid surfaces and
can be extended to curved surfaces with a
little ef简介:Contact angles are well established as a
sensitive means of contamination detection
on surfaces. These measurements are
straightforward on flat, solid surfaces and
can be extended to curved surfaces with a
little effort. When the surface is either
• rough, e.g., a medium grit sandpaper
• a fabric of fibers
• perforated with holes
then it is composite in the sense that it
alternates between air and substrate as one
moves microscopically across the surface. It
is important to understand that the contact
angles reflect the composite material and not
just the original solid substrate.详细>