Effects of Different Microorganisms on Pulp and Paper Properties
作者:
ZenatA. Nagieb,
SamiaM. Helmy,
Amira El-Gammal,
期刊:
Polymer-Plastics Technology and Engineering
(Taylor Available online 1994)
卷期:
Volume 33,
issue 4
页码: 457-464
ISSN:0360-2559
年代: 1994
DOI:10.1080/03602559408010740
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Pretreatment of wood chips with some microorganisms including white-rot fungi and streptomyces improves the strength properties of mechanical pulps. We studied the effect of these white-rot fungi and streptomyces on the mechanical properties of handsheets. Strength and optical properties were compared in handsheets prepared from mechanical pulp of treated and untreated wood chips. The fungal pretreatments resulted in handsheet strength properties better than the control and also better than streptomyces when compared at an equivalent freeness. Fungal pretreatments decreased brightness and light-scattering coefficients but did not adversely affect opacity. Lignin content of the chips was reduced by fungal pretreatments.
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