FINES OF <em>ACACIA</em> <em>MANGIUM</em> RECYCLED KRAFT PAPER

Authors

  • I. Rushdan

Keywords:

Drainage shear, refining, retention, unbleached kraft pulp, zeta potential

Abstract

The effects of initial refining degree (32, 56 and 70o SR) on the quantity and quality of fines of Acacia mangium unbleached kraft recycled papers were studied. The retention of fines and the effect of these fines on the bonding index of handsheets were also studied. The fines' content and retention were determined using the Dynamic Drainage Jar. The fines size and zeta potential were analysed by the COULTER@ DELSA 440. Fines were reduced from pulp stocks at different levels by Dynamic DrainageJar and these stocks were then converted into handshees. The fines were found to vary in quantity (3.0 to 8.5%) and, quality (average size of 1.5 to 2.2 pm and average zeta potential of -30.6 to -44.3 mV) for different initial refining degrees. The amounts at which the recycled fines were retained in the stock also raried (91.4 to 48.3%) for different recycled pulps and this depended on the initial refining degree and the drainage shear. The bonding index of recycled papers was found to decrease with reduction in fines content (25 to 34%).

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Published

2022-06-28

How to Cite

I. Rushdan. (2022). FINES OF <em>ACACIA</em> <em>MANGIUM</em> RECYCLED KRAFT PAPER. Journal of Tropical Forest Science (JTFS), 17(3), 325–333. Retrieved from https://jtfs.frim.gov.my/jtfs/article/view/1042

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Articles
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