Thermal degradation is a chemical process that involves breaking down the polymer molecules in a material through the application of heat. This process converts the long polymer chains into shorter ...
Domestic suppliers of N95 and surgical masks are crumbling as hospitals return to buying cheaper products abroad, The Wall Street Journal reported Feb. 4. About 70% of the startup mask companies ...
TAMPA, Fla. — Companies like American Surgical Mask opened their doors for business at the peak of the COVID-19 pandemic, but 18 months later, they say the materials needed to create personal ...
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