EFFECT OF CATIONIC STARCH AND CHITOSAN ON DRY STRENGTH OF BLEACHED PULPS MADE OF PRE-EXTRACTED AND NON-EXTRACTED BAGASSE

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KHORASANI ZEINAB; HAMZEH YAHYA; ASHOURI ALI REZA; AZADFALLAH MOHAMMAD

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Journal: Iranian Journal of Polymer Science and Technology Year:2013 | Volume:25 | Issue:5 (ISSUE NO. 121) Page(s): 384-392

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Title

EFFECT OF CATIONIC STARCH AND CHITOSAN ON DRY STRENGTH OF BLEACHED PULPS MADE OF PRE-EXTRACTED AND NON-EXTRACTED BAGASSE

Author(s)

KHORASANI ZEINAB | HAMZEH YAHYA | ASHOURI ALI REZA | AZADFALLAH MOHAMMAD | Issue Writer Certificate

Keywords

BAGASSEQ3

SODA PULPINGQ2

DRY STRENGTH POLYMERSQ2

CATIONIC STARCHQ2

CHITOSANQ3

Abstract

This study focused on the properties of alkaline pulp obtained from the SODA PULPING of pre-extracted BAGASSE and the effects of DRY STRENGTH POLYMERS on mechanical properties of paper in comparison to a paper obtained from nonextracted BAGASSE. Hot-water pre-extraction was carried out at 135°C for 30 min.Consequently, SODA PULPING and ECF bleaching were performed on pre-extracted and un-extracted BAGASSE, under similar conditions. It was found that pre-extraction of about 50% of hemicelloluse of the BAGASSE decreased total pulping yield, kappa number and increased bleachability of pulps and resulted in a significant loss in tensile and burst strengths of hand-sheets. Then, reinforcing effect of the pulps with CHITOSAN and CATIONIC STARCH applied in the wet-end were investigated. The results obtained with suitable amounts of CHITOSAN and CATIONIC STARCH were encouraging, because comparable strengths were obtained from pre-extracted and un-extracted bleached soda BAGASSE pulps with 1% CHITOSAN and 1.5% CATIONIC STARCH. According to the results, drop in paper strength due to hemicellulose pre-extraction of the BAGASSE could be compensated using suitable DRY STRENGTH POLYMERS.

Cites

PH-DEPENDED BEHAVIOR OF CHITOSAN POLYMER ON THE KRAFT SURFACE MODIFIED FIBERS OF

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APA: Copy

KHORASANI, ZEINAB, HAMZEH, YAHYA, ASHOURI, ALI REZA, & AZADFALLAH, MOHAMMAD. (2013). EFFECT OF CATIONIC STARCH AND CHITOSAN ON DRY STRENGTH OF BLEACHED PULPS MADE OF PRE-EXTRACTED AND NON-EXTRACTED BAGASSE. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 25(5 (ISSUE NO. 121)), 384-392. SID. https://sid.ir/paper/6472/en

Vancouver: Copy

KHORASANI ZEINAB, HAMZEH YAHYA, ASHOURI ALI REZA, AZADFALLAH MOHAMMAD. EFFECT OF CATIONIC STARCH AND CHITOSAN ON DRY STRENGTH OF BLEACHED PULPS MADE OF PRE-EXTRACTED AND NON-EXTRACTED BAGASSE. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2013;25(5 (ISSUE NO. 121)):384-392. Available from: https://sid.ir/paper/6472/en

IEEE: Copy

ZEINAB KHORASANI, YAHYA HAMZEH, ALI REZA ASHOURI, and MOHAMMAD AZADFALLAH, “EFFECT OF CATIONIC STARCH AND CHITOSAN ON DRY STRENGTH OF BLEACHED PULPS MADE OF PRE-EXTRACTED AND NON-EXTRACTED BAGASSE,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 25, no. 5 (ISSUE NO. 121), pp. 384–392, 2013, [Online]. Available: https://sid.ir/paper/6472/en

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