z-logo
Premium
The Effects of Environmental Exposure on the Optical, Physical, and Chemical Properties of Manufactured Fibers of Natural Origin
Author(s) -
Brinsko Kelly M.,
Sparenga Sebastian,
King Meggan
Publication year - 2016
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/1556-4029.13140
Subject(s) - natural (archaeology) , biochemical engineering , environmental science , materials science , forensic engineering , engineering , geology , paleontology
Manufactured fibers derived from natural origins include viscose rayon, azlon, and polylactic acid ( PLA ). A 2‐year study was conducted to document any changes these fibers undergo as a result of exposure to various environmental conditions. Fabric swatches representing each fiber type were exposed to freshwater, saltwater, heat, cold, ultraviolet light, or composter conditions. Fibers from the swatches were periodically analyzed using polarized light microscopy and Fourier transform infrared microspectroscopy. Fiber solubility and melting‐point behavior were measured every 6 months. Except for the complete degradation of viscose rayon in the composter, saltwater, and freshwater environs, no changes in the optical properties, infrared spectra, solubility, or melting points of the remaining fibers in any of the environments were observed. However, microscopic morphological changes were observed in fibers from two azlon swatches submerged in freshwater and saltwater, two PLA swatches exposed to ultraviolet light, and two viscose rayon swatches exposed to ultraviolet light.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here