EFFECT OF BEATING TIME ON THE PROPERTIES OF SODA AND MONOETHANOLAMINE PULP FROM WHEAT STRAW

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AHMADI M.; HEDJAZI S.; SALEHI K.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2017 | Volume:32 | Issue:1 Page(s): 94-105

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Title

EFFECT OF BEATING TIME ON THE PROPERTIES OF SODA AND MONOETHANOLAMINE PULP FROM WHEAT STRAW

Author(s)

AHMADI M. | HEDJAZI S. | SALEHI K. | Issue Writer Certificate

Keywords

BEATING PROCESSQ1

WHEAT STRAWQ2

MONOETHANOLAMINEQ1

JOKROMILLQ1

PHYSICAL AND MECHANICAL PROPERTIESQ2

Abstract

In this study, the effect of beating time on morphologic, physical and strength properties of soda and MONOETHANOLAMINE pulps obtained from WHEAT STRAW was studied, in order to optimize the time for beating operation. Beating of the pulps was applied in different time by laboratory Jokro mill beater. The results showed that rising time of beating leads to increase the freeness (SR) of pulps and MONOETHANOLAMINE pulp reached to maximum freeness (SR) in lesser time as compared to soda pulp. In addition, it is found that monoethanolamin pulp reached the maximum tensile index (91.3 N.m/g) after 30 minute beating time and longer time of BEATING PROCESS had no significant effect on increasing the tensile index. Soda pulp tensile index was increased significantly at longer time of BEATING PROCESS and for this kind of pulp, maximum value of tensile index (87.7N.m/g) was reached in 50 minute beating. The highest burst index for soda pulp was 5 kPa.m2/g which was reached after 50 minute BEATING PROCESS. The burst strength index of mono ethanolamine pulp increased by rising time of BEATING PROCESS and reached to its maximum value of 5.6 kPa.m2/g and at prolonged time after it was decreased. Rising the time of BEATING PROCESS led to decreasing the tear strength index of both pulps identically. The results showed that mono ethanolamine pulp had the higher yield and better beating ability in comparison with soda pulp which can be due to hgiher carbohydrates and minerals retaining in monoethanolamin pulp.

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APA: Copy

AHMADI, M., HEDJAZI, S., & SALEHI, K.. (2017). EFFECT OF BEATING TIME ON THE PROPERTIES OF SODA AND MONOETHANOLAMINE PULP FROM WHEAT STRAW. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 32(1), 94-105. SID. https://sid.ir/paper/109368/en

Vancouver: Copy

AHMADI M., HEDJAZI S., SALEHI K.. EFFECT OF BEATING TIME ON THE PROPERTIES OF SODA AND MONOETHANOLAMINE PULP FROM WHEAT STRAW. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2017;32(1):94-105. Available from: https://sid.ir/paper/109368/en

IEEE: Copy

M. AHMADI, S. HEDJAZI, and K. SALEHI, “EFFECT OF BEATING TIME ON THE PROPERTIES OF SODA AND MONOETHANOLAMINE PULP FROM WHEAT STRAW,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 32, no. 1, pp. 94–105, 2017, [Online]. Available: https://sid.ir/paper/109368/en

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