THE EFFECT OF PULP SUSPENSION PH ON THE PERFORMANCE OF CHITOSAN –NANOBENTONITEAS A DRY STRENGTH ADDITIVE IN HARDWOOD CMP PULP

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RAHMANINIA MEHDI; ROHI MOSTAFA; RAMEZANI OMID; ZABIHZADEH SEYED MAJID

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Journal: Journal of Forest and Wood Products Year:2015 | Volume:68 | Issue:2 Page(s): 347-357

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Title

THE EFFECT OF PULP SUSPENSION PH ON THE PERFORMANCE OF CHITOSAN –NANOBENTONITEAS A DRY STRENGTH ADDITIVE IN HARDWOOD CMP PULP

Author(s)

RAHMANINIA MEHDI | ROHI MOSTAFA | RAMEZANI OMID | ZABIHZADEH SEYED MAJID | Issue Writer Certificate

Keywords

BENTONITEQ1

CHEMI-MECHANICAL PULPQ2

CHITOSANQ2

MECHANICAL PROPERTIESQ2

PAPER MAKINGQ1

WET END CHEMISTRYQ2

Abstract

In this research, the effect of pH on the performance of nanoBENTONITE -chitosan system (as dry strength additives) in hardwood chemi-mechanicalpulp (CMP) was studied. For this purpose, 3 levels of pH (5.5, 7, 8.5) and 3 levels of CHITOSAN (0.75, 1.25 and 2%- based on oven dried pulp) in constant level of 0.3 nano-BENTONITE (based on oven dried pulp) were applied. The Atomic Force Microscopy(AFM) image confirmed the nano- structure of BENTONITE in thickness dimension at the range of 1-22.3 nm. The results indicated that nano- BENTONITE- CHITOSAN in all levels of pH caused numerical improvement in tensile, burst and tear indices and also apparent density in comparison with control sample. Although the effect of studied variables (chitosan dosages and pH levels) on considered properties was statistically significant, but most of treatments were in the same groups according to Duncan grouping. In this research, treatment consisting of 1.25 CHITOSAN in fixed level of 0.3 nano-BENTONITE at alkaline pH showed the best results in mentioned properties and statistically had significant difference comparing other treatments. Therefore, it was introduced as the selected treatment in this research. It seems that the ratio of CHITOSAN and BENTONITE nano- anion had a great effect on performance of nano-particle system. Also the results showed that the performance of system depend on the pH of furnish and the best results was achieved in alkaline condition (pH=8.5).

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APA: Copy

RAHMANINIA, MEHDI, ROHI, MOSTAFA, RAMEZANI, OMID, & ZABIHZADEH, SEYED MAJID. (2015). THE EFFECT OF PULP SUSPENSION PH ON THE PERFORMANCE OF CHITOSAN –NANOBENTONITEAS A DRY STRENGTH ADDITIVE IN HARDWOOD CMP PULP. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), 68(2), 347-357. SID. https://sid.ir/paper/162943/en

Vancouver: Copy

RAHMANINIA MEHDI, ROHI MOSTAFA, RAMEZANI OMID, ZABIHZADEH SEYED MAJID. THE EFFECT OF PULP SUSPENSION PH ON THE PERFORMANCE OF CHITOSAN –NANOBENTONITEAS A DRY STRENGTH ADDITIVE IN HARDWOOD CMP PULP. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2015;68(2):347-357. Available from: https://sid.ir/paper/162943/en

IEEE: Copy

MEHDI RAHMANINIA, MOSTAFA ROHI, OMID RAMEZANI, and SEYED MAJID ZABIHZADEH, “THE EFFECT OF PULP SUSPENSION PH ON THE PERFORMANCE OF CHITOSAN –NANOBENTONITEAS A DRY STRENGTH ADDITIVE IN HARDWOOD CMP PULP,” JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 68, no. 2, pp. 347–357, 2015, [Online]. Available: https://sid.ir/paper/162943/en

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