Evaluation of Erythrina fusca Lour. as a pulping raw material

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD International Wood Products Journal Pub Date : 2022-02-18 DOI:10.1080/20426445.2022.2039983
M. Rahman, E. Jahan, Jannatun Nayeem, K. M. Y. Arafat, A. Sarwar, M. Uddin, M. Jahan
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引用次数: 1

Abstract

ABSTRACT This paper characterizes Erythrina fusca Lour. in terms of anatomical, morphological and chemical properties to evaluate its efficacy as a pulping raw material. It is characterized with 47.0% α-cellulose and 28.8% lignin content with a fibre length of 1.11 mm. The vessels (pores) are distinct and form porous semi-rings, with a row of larger pores at the beginning of the growth layer, which facilitate penetration of chemicals during the cooking phase of pulping. Kraft pulping of E. fusca was carried out by varying cooking temperature, time and alkali charge. At optimum condition of 14% active alkali for 2 h of cooking at 170°C, pulp yield was 40% with kappa number of 26.6. The papermaking properties were also evaluated and showed tensile index of 52.4 N m g−1 with tear index of6.8 mN m2 g−1 at oSR of 57. This species can be used as a raw material for writing and printing grade pulp.
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红赤藓的评价。作为制浆原料
摘要本文研究了红藓属植物的特性。从解剖学、形态学和化学性质等方面评价其作为制浆原料的功效。其α-纤维素含量为47.0%,木质素含量为28.8%,纤维长度为1.11 mm。血管(孔隙)明显,形成多孔半环,在生长层的开始有一排较大的孔隙,这有利于在制浆蒸煮阶段化学物质的渗透。通过改变蒸煮温度、蒸煮时间和加碱量,对褐煤进行硫酸盐制浆。在170℃、活性碱含量为14%、蒸煮2 h的最佳条件下,纸浆得率为40%,kappa值为26.6。在oSR为57时,拉伸指数为52.4 N m2 g−1,撕裂指数为6.8 mN m2 g−1。本种可作为书写和印刷级纸浆的原料。
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来源期刊
International Wood Products Journal
International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-
CiteScore
2.40
自引率
0.00%
发文量
27
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