Investigating the optical and mechanical properties of bagasse soda pulp bleached using totally chlorine free (TCF) method

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

VAYSI R.

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

Journal Paper

Paper Information

Journal: Journal of Wood and Forest Science and Technology Year:2019 | Volume:26 | Issue:3 Page(s): 1-13

Download Full-Text

Persian Verion

View:

459

Download:

Cites:

Information Journal Paper

Title

Investigating the optical and mechanical properties of bagasse soda pulp bleached using totally chlorine free (TCF) method

Author(s)

VAYSI R. | Issue Writer Certificate

Keywords

BagasseQ1

Bleaching stageQ2

Soda pulpQ1

Optical and mechanical propertiesQ1

TCF bleachingQ1

Abstract

Background and Objectives: About 60, 000 tons of printing paper are annually produced from Bagasse in Ahvaz Haft-Tapeh Pars factory. In this factory, Bagasse Soda pulp was already bleached with the CEH sequence and is currently bleached with the EH sequence (alkaline extraction (E) and hypochlorite (H)). The chlorination stage (C) due to consistency of the pulp (about 3%) and the production of large amounts of effluents and absorbable organic X-halide (AOX) of lignin is significantly important in terms of the environment. Therefore, in the Pars factory and in conventional global systems, the chlorinated (C) stage and some of the bleaching sequences with chlorine compounds such as hypochlorite (H) and chlorine dioxide (D) are eliminated and instead of them are used oxygen (O), ozone (Z), hydrogen peroxide (P), disodium hydrosulfite (Y) or a combination of them as a totally chlorine-free (TCF) system. Therefore, this study was conducted to evaluate the effect of bleaching on Optical and mechanical properties of paper from Bagasse Soda pulp using TCF method. Materials and Methods: In this research, the unbleached Soda pulp of Bagasse (before the bleaching) was randomly selected from the Ahvaz Pars factory. Then, the selected pulps were bleached with 1, 2, and 3 step sequences of P, OP, OPY, and O(Ep)P using the oxygen (O), hydrogen peroxide (P), and also alkaline extraction by hydrogen peroxide (PE) and di-sodium hydrosulfite (Y). Hand-sheets with a basic weight of 70 gr/m2 were prepared from the pulp. After that, theOptical and mechanical properties of the samples were measured according to the TAPPI standard test methods and then the paper properties were compared. Results: The results showed that some properties such as the brightness, greenness, tear strength, tensile, burst, tear length, and folding strength were increased due to bleaching by totally chlorine free (TCF) method. On the other hand, the opacity and a* factor of papers resulting from Bagasse Soda pulp were decreased. In the current study, hydrogen peroxide as an oxidative bleach had an effective role in improving the greenness, tear strength, tensile, tear length, and folding strength. However, no significant effect was observed on improving the made paper brightness compared to the control sample (EH sequence of Factory). Furthermore, statistical analysis results showed that there are significant differences at 1% level between the averages of the Optical and mechanical properties of the modified pulps. Conclusion: In general, the role of the three-stage bleaching sequences of OPY and also the two-stage bleaching sequences of OP were more effective in bleaching of the pulp and improving the brightness and strength of the made papers compared to the two-stage sequences of EH (control) and unbleached Bagasse Soda pulp of the factory.

Cites

No record.

References

No record.

Cite

APA: Copy

VAYSI, R.. (2019). Investigating the optical and mechanical properties of bagasse soda pulp bleached using totally chlorine free (TCF) method. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 26(3 ), 1-13. SID. https://sid.ir/paper/369103/en

Vancouver: Copy

VAYSI R.. Investigating the optical and mechanical properties of bagasse soda pulp bleached using totally chlorine free (TCF) method. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2019;26(3 ):1-13. Available from: https://sid.ir/paper/369103/en

IEEE: Copy

R. VAYSI, “Investigating the optical and mechanical properties of bagasse soda pulp bleached using totally chlorine free (TCF) method,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 26, no. 3 , pp. 1–13, 2019, [Online]. Available: https://sid.ir/paper/369103/en

Related Journal Papers