Near-surface analysis and depth profiling by FT-IR photoacoustic spectroscopy

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Appl. Spectrosc.; (United States)

DOI:https://doi.org/10.1366/0003702874448319· OSTI ID:6166233

Yang, C Q; Bresee, R R; Fateley, W G

Fourier transform photoacoustic spectroscopy (FT-IR/PAS) has proven to be a powerful technique for the near-surface characterization of solid materials. The effective sampling depth of FT-IR/PAS can be varied by using different interferometer mirror velocities, so that nondestructive depth profiling can be performed. In this research, sized cotton yarns, treated glass fibers, chemically modified poly(ethylene terephthalate) fibers and a naturally weathered poly(vinyl chloride) composite were investigated with the use of FT-IR/PAS at different mirror velocities. Penetration of the chemical additives in these materials was studied. It was demonstrated that FT-IR/PAS has the ability to investigate the changes in chemical nature within the detectable surface layers of solid samples.

• Research Organization: Department of Chemistry (C.Q.Y., W.G.F.) and Department of Clothing, Textiles Design (R.R.B.), Kansas State University, Manhattan, Kanass 66506
• OSTI ID: 6166233
• Journal Information: Appl. Spectrosc.; (United States), Journal Name: Appl. Spectrosc.; (United States) Vol. 41:5; ISSN APSPA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
CHEMICAL ANALYSIS
FIBERS
INFRARED SPECTRA
PHOTOACOUSTIC SPECTROSCOPY
POLYMERS
SPECTRA
SPECTROSCOPY
TEXTILES