CMP pulp bleaching using hydrogen peroxide and sodium hypochlorite

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GHASEMIAN A.; Armand Kh.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2020 | Volume:35 | Issue:1 (70) Page(s): 11-21

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Information Journal Paper

Title

CMP pulp bleaching using hydrogen peroxide and sodium hypochlorite

Author(s)

GHASEMIAN A. | Armand Kh. | Issue Writer Certificate

Keywords

brightnessQ1

Hydrogen peroxideQ2

opacityQ2

Sodium hypochloriteQ1

Abstract

In this research, the effect of sodium peroxide and Sodium hypochlorite on the chemicalmechanical pulp (CMP) bleaching has been investigated. For this purpose, unbleached CMP pulp was obtained from Mazandaran wood and paper mill, and bleaching with Hydrogen peroxide and Sodium hypochlorite was carried out in two levels of 3 and 4%, for two times of 60 and 90 minutes at 70° C and 8% consistency. In each treatment, 30 grams of pulp was mixed with Hydrogen peroxide, sodium silicate, DTPA, sodium hydroxide and Sodium hypochlorite and bleaching was performed. Then, 60 gr/m 2 hand sheets were prepared and the optical properties of hand sheets were measured and analyzed based on TAPPI test methods. The results of optical properties of handsheets showed that by increasing the bleaching time and the level of chemicals, the optical properties were improved. The highest brightness and minimum yellowness were observed applying 4% Hydrogen peroxide and 90 minutes in bleaching. The lowest opacity was observed in the control sample. Strength properties such as tensile, burst and tear strength of bleached paper were also increased.

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APA: Copy

GHASEMIAN, A., & Armand, Kh.. (2020). CMP pulp bleaching using hydrogen peroxide and sodium hypochlorite. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 35(1 (70) ), 11-21. SID. https://sid.ir/paper/386841/en

Vancouver: Copy

GHASEMIAN A., Armand Kh.. CMP pulp bleaching using hydrogen peroxide and sodium hypochlorite. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2020;35(1 (70) ):11-21. Available from: https://sid.ir/paper/386841/en

IEEE: Copy

A. GHASEMIAN, and Kh. Armand, “CMP pulp bleaching using hydrogen peroxide and sodium hypochlorite,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 35, no. 1 (70) , pp. 11–21, 2020, [Online]. Available: https://sid.ir/paper/386841/en

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