COMPARING THE EFFECT OF ALKALI CHARGE AND TREATMENT TIME ON THE PROPERTIES OF BAGASSE AND EASTERN COTTONWOOD COLD SODA PULP

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ASHRAFI BIRGANI S.; SARAEIAN A.R.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2012 | Volume:27 | Issue:1 (38) Page(s): 16-26

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Title

COMPARING THE EFFECT OF ALKALI CHARGE AND TREATMENT TIME ON THE PROPERTIES OF BAGASSE AND EASTERN COTTONWOOD COLD SODA PULP

Author(s)

ASHRAFI BIRGANI S. | SARAEIAN A.R. | Issue Writer Certificate

Keywords

COLD SODA PULPQ2

BAGASSEQ2

EASTERN COTTONWOODQ2

POPULUS DELTOIDSQ2

YIELDQ2

ALKALI ABSORPTIONQ2

STRENGTH PROPERTIESQ2

Abstract

The purpose of this study was to compare the effects of various concentrations of sodium hydroxide and treatment times on the properties of BAGASSE and EASTERN COTTONWOOD (Populus deltoids) COLD SODA PULP and paper. The COLD SODA PULP was prepared using various concentrations of sodium hydroxide (5, 10, 15% based on oven dry weight), different treatment times (20, 40, 60 min.), and constant liquor to wood ratio of 10:1 at 25oC and atmospheric pressure. The pulp prepared after 40 min treatment time was selected and refined to the freeness of 400 ml CSF. Analysis of the properties of hand sheets was conducted based on completely randomized design. Duncan multiple range grouping test was used to classify the properties of papers. The results indicated that, the YIELD of pulp obtained from EASTERN COTTONWOOD and BAGASSE pulp varied between 86.54% to 94.52% and 70.65 to 87.32% respectively. The absorbed alkali was varied from 2.15% to 4.78 % for EASTERN COTTONWOOD and 3.06% to 6.80% for BAGASSE. EASTERN COTTONWOOD had the highest YIELD, thickness and STRENGTH PROPERTIES whereas the highest absorbed alkali and paper density were observed in BAGASSE. It was observed that as the concentration of sodium hydroxide was increased from 5% to 15%, the YIELD of pulp and the thickness of paper decreased, while the absorbed alkali, density and the STRENGTH PROPERTIES of paper increased. In general, the COLD SODA PULP from EASTERN COTTONWOOD provided higher quality compared with BAGASSE under the same pulping conditions.

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APA: Copy

ASHRAFI BIRGANI, S., & SARAEIAN, A.R.. (2012). COMPARING THE EFFECT OF ALKALI CHARGE AND TREATMENT TIME ON THE PROPERTIES OF BAGASSE AND EASTERN COTTONWOOD COLD SODA PULP. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 27(1 (38)), 16-26. SID. https://sid.ir/paper/109764/en

Vancouver: Copy

ASHRAFI BIRGANI S., SARAEIAN A.R.. COMPARING THE EFFECT OF ALKALI CHARGE AND TREATMENT TIME ON THE PROPERTIES OF BAGASSE AND EASTERN COTTONWOOD COLD SODA PULP. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2012;27(1 (38)):16-26. Available from: https://sid.ir/paper/109764/en

IEEE: Copy

S. ASHRAFI BIRGANI, and A.R. SARAEIAN, “COMPARING THE EFFECT OF ALKALI CHARGE AND TREATMENT TIME ON THE PROPERTIES OF BAGASSE AND EASTERN COTTONWOOD COLD SODA PULP,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 27, no. 1 (38), pp. 16–26, 2012, [Online]. Available: https://sid.ir/paper/109764/en

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