Kraft pulp

Ingredients

Kraft pulp

Preparation Steps

Original Recipe Text

The samples are Kraft pulp sheets designated as KC (Control/Before ageing) and KA (Aged/After ageing). These sheets are analyzed to observe the effects of environmental stressors over time (p. 22). The chemical fingerprinting via IR spectroscopy (p. 23) focuses on the presence and stability of carbonyl (C=O) and hydroxyl (O-H) functional groups.

Evidence

"FE-SEM image of Kraft pulp before ageing at 1000X magnification"

Remarks

The FE-SEM imaging at 1000X magnification (Fig. 5, p. 22) documents significant physical transformations in the Kraft pulp after the ageing cycle. Key observations include the 'Growth of pores on fibre surface' and 'Humiliation of Fibre'. Infrared spectroscopy (Fig. 8, p. 23) shows the transmittance spectra for KC and KA, identifying major peaks for C-H stretching, O-H stretching, and C=O stretching, alongside the 894 cm-1 band associated with cellulose crystallinity or structure.