View from the floor Crystal clear:Clarifying polypropylene

摘要

There's a reason why polypropylene is the I leading commodity plastic resin.It's I cheap,easy to mold and form,and has just the right physical properties for thousands of useful consumer goods.When your kid breaks the garage door window playing street hockey,however,you're not going down to the Home Depot to pick up a sheet of PP.That's because polypropylene isn't water-clear the way "acrylics" like PMMA(poly-methylmethacrylate)are.Or are they?