Fig. 8From: The effect of halloysite nanotubes dispersions on vegetable-tanned leather thermal stabilityATR-FTIR spectra of the treated leather samples as compared with HNTs spectrum. The main absorption bands of HNTs (3695 cm−1, 3622 cm−1, 1027 cm−1 and 910 cm−1) as well as those corresponding to collagen (AI and AII) are highlightedBack to article page