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Improvement of bleached wheat straw pulp properties by using aspen high-yield pulp.

Identifieur interne : 002A26 ( Main/Exploration ); précédent : 002A25; suivant : 002A27

Improvement of bleached wheat straw pulp properties by using aspen high-yield pulp.

Auteurs : Hongjie Zhang [République populaire de Chine] ; Jianguo Li ; Huiren Hu ; Zhibin He ; Yonghao Ni

Source :

RBID : pubmed:22784951

Descripteurs français

English descriptors

Abstract

The bleached wheat straw pulp (BWSP) accounts for about 25% of the virgin fiber supply in the Chinese Pulp and Paper Industry. As a non-wood chemical pulp, BWSP is known to have low bulk, low light scattering coefficient and poor drainage due to its high content of parenchyma cells. In this study, a high-quality aspen high-yield pulp (HYP) was used to improve the BWSP properties at the laboratory scale. The results indicate that adding 5-20% aspen HYP into unrefined or refined BWSP can minimize many of the drawbacks associated with the BWSP: improving its drainage, bulk, light scattering coefficient and opacity. The addition of a small amount (up to 20%) of aspen HYP can also significantly increase the tear index of BWSP with only a slight decrease of the tensile index.

DOI: 10.1016/j.biortech.2012.06.008
PubMed: 22784951


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">The bleached wheat straw pulp (BWSP) accounts for about 25% of the virgin fiber supply in the Chinese Pulp and Paper Industry. As a non-wood chemical pulp, BWSP is known to have low bulk, low light scattering coefficient and poor drainage due to its high content of parenchyma cells. In this study, a high-quality aspen high-yield pulp (HYP) was used to improve the BWSP properties at the laboratory scale. The results indicate that adding 5-20% aspen HYP into unrefined or refined BWSP can minimize many of the drawbacks associated with the BWSP: improving its drainage, bulk, light scattering coefficient and opacity. The addition of a small amount (up to 20%) of aspen HYP can also significantly increase the tear index of BWSP with only a slight decrease of the tensile index.</div>
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