Figure 4 | Scientific Reports

Figure 4

From: Influence of spin finish on degradation, functionalization and long-term storage of polyethylene terephthalate fabrics dedicated to ligament prostheses

Figure 4

IR spectra of Soxhlet extracted oils from stored PET fabrics PET1993, 2009, 2018 compared to virgin SF oil (SFSB): (A) Overall spectra of spin-finish (SF) oil, extracted oil from PET (1993, 2009, 2018) samples, respectively, (B) regional spectra from 3800–3000 cm−1, (C) regional spectra from 1800 to 1550 cm−1, (D) regional spectra from 1100 to 800 cm−1.

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