Determination the optimum chemi-mechanical pulping and bleaching conditions for three hardwood species and evaluation of its papers

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GOLI M.; MAHDAVI S.

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Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2018 | Volume:33 | Issue:1 (62) Page(s): 38-49

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Title

Determination the optimum chemi-mechanical pulping and bleaching conditions for three hardwood species and evaluation of its papers

Author(s)

GOLI M. | MAHDAVI S. | Issue Writer Certificate

Keywords

Hardwood forest speciesQ1

shortages of raw materialsQ1

CMPQ2

optical and mechanical propertiesQ1

Abstract

In recent years, environmental problems of irregular wood harvesting and shortages of raw materials made wood and paper industry and country to be faced with serious crises. Some researchers and industry experts have been led to fundamental and long-term solution for supplying raw materials to these industries. The present study aimed to determine the optimum conditions of pulping and bleaching for three Hardwood forest species (as a separate cooking & combined with 40% popular, 15% beech and 45% hornbeam) and paper evaluation. After preparing CMP at yield of 85%, applying cooking times (25-60 minutes, temperature of 170 ° C, the ratio of L: W of 7: 1 hand sheet with standard grammage of 60 g/m2 were made, optical and mechanical properties of paper was evaluated. The results showed that, poplar wood were better in terms of total properties with mechanical and optical properties. Also in bleaching stage, the tensile strength index is decreased and burst and tear strength index was improved. The maximum initial brightness was related to poplar species wood and the beech wood had the lowest values. The opacity and yellowness either pure or combined wood pulps were decreased.

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APA: Copy

GOLI, M., & MAHDAVI, S.. (2018). Determination the optimum chemi-mechanical pulping and bleaching conditions for three hardwood species and evaluation of its papers. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 33(1 (62) ), 38-49. SID. https://sid.ir/paper/109844/en

Vancouver: Copy

GOLI M., MAHDAVI S.. Determination the optimum chemi-mechanical pulping and bleaching conditions for three hardwood species and evaluation of its papers. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2018;33(1 (62) ):38-49. Available from: https://sid.ir/paper/109844/en

IEEE: Copy

M. GOLI, and S. MAHDAVI, “Determination the optimum chemi-mechanical pulping and bleaching conditions for three hardwood species and evaluation of its papers,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 33, no. 1 (62) , pp. 38–49, 2018, [Online]. Available: https://sid.ir/paper/109844/en

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