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. 2019 Jan 18;12(2):296. doi: 10.3390/ma12020296

Figure 4.

Figure 4

Fourier transform infrared spectroscopy ATR spectra of (a) untreated nonwoven polypropylene, (b) triethanolamine coated nonwoven polypropylene, (c) Ag coated nonwoven polypropylene (1#), and (d) Ag coated nonwoven polypropylene (3#).