In:
BioResources, BioResources, Vol. 14, No. 1 ( 2018-12-7), p. 870-881
Abstract:
The brightness of bleached bamboo chemo-mechanical pulp (CMP) is often too low to be used as a furnish in value-added paper products. In this study, preliminary optimization of various parameters of a modified hydrogen peroxide (H2O2) bleaching procedure for bamboo CMP pulps was performed using the inclusion of ethanol in the bleaching medium (IEBM). Compared with a conventional bleaching method, this modified process is aimed at improving bleaching efficiency and brightness ceiling of bamboo CMP with the proper usage of chemicals. The CMP was bleached to a brightness of 74.2% ISO at the usage level of 12% H2O2, which shows it increased by 7.4% ISO compared with the conventional method. For a brightness target of 72.0% ISO, bleaching with the IEBM method reduced the H2O2 consumption by approximately 60%. In addition, a higher activation energy of H2O2 for the IEBM method was calculated to be 23.3 kJ/mol, which was increased by 3.3 kJ/mol compared with the conventional method.
Type of Medium:
Online Resource
ISSN:
1930-2126
,
1930-2126
DOI:
10.15376/biores.14.1
DOI:
10.15376/biores.14.1.870-881
Language:
English
Publisher:
BioResources
Publication Date:
2018
detail.hit.zdb_id:
2238238-0
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