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Surface analysis of explosion pulps by ESCA

✍ Scribed by X. Hua; S. Kaliaguine; B. V. Kokta; A. Adnot

Publisher
Springer
Year
1993
Tongue
English
Weight
482 KB
Volume
28
Category
Article
ISSN
0043-7719

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✦ Synopsis

The oxygen (1 s) ESCA peak for aspen explosion pulp consists of two components, O1 and 02. A tentative assignment was made for them. Ol with lower binding energy is assigned to oxygen in lignin; while 02 comes mainly from the oxygen elements in carbohydrates. Thus, an O1 area percentage might be viewed as a measure of lignin exposed on the fiber surface. Sulfur (2p) spectra show that the sulfur on the fiber surface of the pulps studied here is in the form of sulfonate groups. Compared to conventional pulps, the lower percentage of Ol and higher sulfur-to-carbon ratio for explosion pulps imply higher number of hydrophilic groups exposed on their fiber surface.

πŸ“œ SIMILAR VOLUMES

Surface analysis of explosion pulps by E
Surface analysis of explosion pulps by ESCA Part 1. Carbon (1s) spectra and oxygen-to-carbon ratios
✍ X. Hua; S. Kaliaguine; B. V. Kokta; A. Adnot πŸ“‚ Article πŸ“… 1993 πŸ› Springer 🌐 English βš– 539 KB

The surface composition of explosion pulp and conventional CMP and CTMP underwent ESCA spectroscopy. Explosion pulps exhibited a higher oxygen-to-carbon ratio and less C1 peak areas compared to conventional CMP/CTMP. Based on the theoretical O/C ratios and C1 contents for the main components of wood

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✍ A. O. Barry; Z. Koran; S. Kaliaguine πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 628 KB

Handsheets of post-treated chemithermomechanical pulps (CTMP) and a sample of Whatman paper no. 1 were analyzed using an ESCA spectrometer. All of these samples revealed the presence of the C,, C,, and C, components in the carbon (1s) peak and the 0, component in the oxygen (1s) peak; the 0, peak co