How are glass fibers made that are used in clean room filters or hepa filters?
Answer:
there are many ways to do it:
for fiber-optic glass fibers:
one, the glass is pushed through a small hole and extruded, like playdough
two, the glass is pulled apart, like when you pull apart gum and there's a thread between the two. the thread becomes the fiber
for fiberglass, the glass is superheated and spun, not unlike a cotton candy machine.
hope this helps
Have you ever seen how cotton candy is made?
The same method is used to produce small filament of glass. Of course, the machine used for glass is a tad hotter, but the principle is the same.
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