INVESTIGATION ON EFFECT OF USING PRECIPITATED CALCIUM CARBONATE ON PAPER PROPERTIES MADE FROM CMP AND WOOD-FREE PULP FURNISH

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MEHRABI E.; RESALATI H.; MOHAMADZADE K.

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Journal: Journal of Wood and Forest Science and Technology Year:2015 | Volume:22 | Issue:2 Page(s): 1-17

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Information Journal Paper

Title

INVESTIGATION ON EFFECT OF USING PRECIPITATED CALCIUM CARBONATE ON PAPER PROPERTIES MADE FROM CMP AND WOOD-FREE PULP FURNISH

Author(s)

MEHRABI E. | RESALATI H. | MOHAMADZADE K. | Issue Writer Certificate

Keywords

MINERAL FILLERQ2

PRECIPITATED CALCIUM CARBONATEQ1

PAPER PROPERTIESQ2

POLYACRYLAMIDEQ1

Abstract

This study was carried out to investigate the effect of using PRECIPITATED CALCIUM CARBONATE (PCC) filler on properties of printing and writing paper.Background and objectives: Todays, the pulp and paper industries increasingly are growing and developing, and the use of non-fiber additives in papermaking seems necessary. Fillers are a important part of these additives in terms of weight. Common consumption dose of filler in papermaking varied from 3 to 30 percentages. Fillers are insoluble solid particles that added to papermaking suspension to develop the optical properties of paper and also reduce costs. Clay, calcium carbonate, titanium dioxide, talc, and silica are common fillers for papermaking. Antonius et al., (2008) claimed that PCC properties affect the flocculent amount, flocs structure, and finally on the deflocculating and flocs strength. They also published a paper (2010) which described the flocculation of PCC by bridging mechanism using polyelectrolyte polymers with high molecular weight and medium charge density. Their results showed that obtained correlations, effects of flocculent dosage; structure of polymer and flocs affects the flocs kinetics.Materials and methods: PCC filler in 20%, 30%, and 40% consumption levels was added to the fiber suspension prepared by mixing Wood-Free pulp with CMP pulp (30:70 ratio), in order to improve the optical properties and also diminish the used fiber amount which is more expensive and costly constituent part of paper. For improving the filler retention in paper, high molecular weight and high charge density cationic POLYACRYLAMIDE (C-PAM) polymer was used as retention-aids.were improved by increasing the filler amount in paper, but on the other hand the other strength indices reduced, except tear index which approximately remained without change.Conclusion: In present study, by increasing in PCC usage in paper, ash and bulk of papers raised, while the air resistance, tensile and Burst strengths decreased, which is probably because of reducing bonding area between fibers for presence of fillers among them and also lack of their uniform distribution in paper. Since fillers aren’t able to make bonds with fibers, as a result the tensile and burst strengths of paper reduced due to restricted and weaken fiber bonds, non-suitable formation and lack of stress distribution, consequently. The higher brightness and opacity was observed in papers with PCC filler against those haven’t, which is due to presence of PCC particles among the fibers in paper structure. So that, by adding PCC in paper, though pores in paper with contain PCC enhances, but these papers have higher reflection coefficient in comparison with control papers.

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APA: Copy

MEHRABI, E., RESALATI, H., & MOHAMADZADE, K.. (2015). INVESTIGATION ON EFFECT OF USING PRECIPITATED CALCIUM CARBONATE ON PAPER PROPERTIES MADE FROM CMP AND WOOD-FREE PULP FURNISH. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 22(2), 1-17. SID. https://sid.ir/paper/156876/en

Vancouver: Copy

MEHRABI E., RESALATI H., MOHAMADZADE K.. INVESTIGATION ON EFFECT OF USING PRECIPITATED CALCIUM CARBONATE ON PAPER PROPERTIES MADE FROM CMP AND WOOD-FREE PULP FURNISH. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2015;22(2):1-17. Available from: https://sid.ir/paper/156876/en

IEEE: Copy

E. MEHRABI, H. RESALATI, and K. MOHAMADZADE, “INVESTIGATION ON EFFECT OF USING PRECIPITATED CALCIUM CARBONATE ON PAPER PROPERTIES MADE FROM CMP AND WOOD-FREE PULP FURNISH,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 22, no. 2, pp. 1–17, 2015, [Online]. Available: https://sid.ir/paper/156876/en

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