Advances in Materials Science and Engineering

Research Article

Deproteinization of Nonammonia and Ammonia Natural Rubber Latices by Ethylenediaminetetraacetic Acid

Figure 6

FT-IR spectra of DPNR-EDTA-4Na. (a) FNR, (b) FR-SH DPNR-EDTA-4Na, and (c) FR-NH3 DPNR-EDTA-4Na.
(a)
(b)
(c)