Production of highly transparent polypropylene sheets
from SPE Plastics Research Online
Polypropylene (PP) is an excellent resin, because it is reasonably priced and has both good physical properties and recycling features. However, because it is a crystalline resin, it is rather difficult to obtain highly transparent PP sheets. This has limited its development for high-transparency use. There are two main theories of higher-order structure formation during PP solidification.
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