fig1
Figure 1. FTIR spectra and visual appearance of the different layers that form the facial masks. Polypropylene was the only polymer present in all layers. FTIR: Fourier Transform Infrared Spectroscopy.
Figure 1. FTIR spectra and visual appearance of the different layers that form the facial masks. Polypropylene was the only polymer present in all layers. FTIR: Fourier Transform Infrared Spectroscopy.
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