KRAFT PULP AND CHEMICAL PROPERTIES OF CECROPIA PALMATA WOOD

The present study was aimed at evaluating the chemical properties and the kraft pulp produced for Cecropia palmata wood and comparing them with Eucalyptus grandis wood. Discs along the stem of 6-year-old trees were transformed into chips. Half of the chips were used for characterisation of wood chem...

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Bibliographic Details
Published in:Journal of tropical forest science 2019-01, Vol.31 (4), p.415-421
Main Authors: Pupo, CH, Calonego, FW, de Souza, FML, Sansígolo, CA
Format: Article
Language:English
Subjects:
Cecropia palmata
Chemical properties
Eucalyptus
Hardwoods
Kraft pulp
Lignin
Mechanical properties
Organic chemistry
Pulp
Pulp & paper industry
Specific volume
Trees
Wood
Wood pulp
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Summary:The present study was aimed at evaluating the chemical properties and the kraft pulp produced for Cecropia palmata wood and comparing them with Eucalyptus grandis wood. Discs along the stem of 6-year-old trees were transformed into chips. Half of the chips were used for characterisation of wood chemical properties and the rest was cooked to produce kraft pulp. The properties of the pulp were determined and results showed that: (1) there was a decrease of 3.8% in the yield of C. palmata pulp compared with E. grandis; (2) specific volume of C. palmata wood pulp increased with increasing refining time but the time to reach the same Schopper-Riegler degree was shorter than E. grandis pulp; and (3) C. palmata had higher air resistance and tear index than E. grandis, while the opposite was observed for tensile index, burst index and stretch. Cecropia palmata wood had lower lignin content and higher total extractives and holocellulose contents than E. grandis wood.
ISSN:0128-1283
2521-9847
DOI:10.26525/jtfs2019.31.4.415