REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS
A repulping approach of waste Chinese banknote paper, i.e., Renminbi (RMB) paper with high wet strength, was studied, and a dual-pH pretreatment process was used before refining. Pretreatment temperature, soaking time, and consistency of waste RMB paper were investigated to obtain the optimum repulp...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2012-06-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_3_3701_Chen_SQS_Repulping_Banknote_Paper_Dual_pH/1630 |
| _version_ | 1819237797753520128 |
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| author | Zicheng Chen, Zhanqian Song, Xueren Qian, Jing Shen |
| author_facet | Zicheng Chen, Zhanqian Song, Xueren Qian, Jing Shen |
| author_sort | Zicheng Chen, |
| collection | DOAJ |
| description | A repulping approach of waste Chinese banknote paper, i.e., Renminbi (RMB) paper with high wet strength, was studied, and a dual-pH pretreatment process was used before refining. Pretreatment temperature, soaking time, and consistency of waste RMB paper were investigated to obtain the optimum repulping parameters. The results showed that when the pretreatment temperature was 80 oC, soaking time was 60 min, and consistency was 10%, the repulping yield was 88.1%. The arithmetic and weighted mean lengths of fine pulp fibers from the optimum experiment were 0.564 mm and 0.785 mm, respectively, and the mean width was 22.5 μm. Obvious kinks and broken ends, as well as a slight curl of fine pulp fibers were observed by analyses with a Morfi-compact fiber analyzer and a scanning electron microscope. The results from Fourier transform infrared spectroscopy analysis possibly demonstrated that the ester bonds in waste banknote paper were destroyed after the dual-pH pretreatment. |
| first_indexed | 2024-12-23T13:26:03Z |
| format | Article |
| id | doaj.art-80ee63a92bdd4c96a7191e376e30ba47 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-23T13:26:03Z |
| publishDate | 2012-06-01 |
| publisher | North Carolina State University |
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| series | BioResources |
| spelling | doaj.art-80ee63a92bdd4c96a7191e376e30ba472022-12-21T17:45:19ZengNorth Carolina State UniversityBioResources1930-21262012-06-017337013710REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESSZicheng Chen,Zhanqian Song,Xueren Qian,Jing ShenA repulping approach of waste Chinese banknote paper, i.e., Renminbi (RMB) paper with high wet strength, was studied, and a dual-pH pretreatment process was used before refining. Pretreatment temperature, soaking time, and consistency of waste RMB paper were investigated to obtain the optimum repulping parameters. The results showed that when the pretreatment temperature was 80 oC, soaking time was 60 min, and consistency was 10%, the repulping yield was 88.1%. The arithmetic and weighted mean lengths of fine pulp fibers from the optimum experiment were 0.564 mm and 0.785 mm, respectively, and the mean width was 22.5 μm. Obvious kinks and broken ends, as well as a slight curl of fine pulp fibers were observed by analyses with a Morfi-compact fiber analyzer and a scanning electron microscope. The results from Fourier transform infrared spectroscopy analysis possibly demonstrated that the ester bonds in waste banknote paper were destroyed after the dual-pH pretreatment.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_3_3701_Chen_SQS_Repulping_Banknote_Paper_Dual_pH/1630Waste banknote paperRepulpingWet-strengthDual-pH pretreatment |
| spellingShingle | Zicheng Chen, Zhanqian Song, Xueren Qian, Jing Shen REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS BioResources Waste banknote paper Repulping Wet-strength Dual-pH pretreatment |
| title | REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS |
| title_full | REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS |
| title_fullStr | REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS |
| title_full_unstemmed | REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS |
| title_short | REPULPING HIGH WET-STRENGTH WASTE BANKNOTE PAPER BY A DUAL-PH PRETREATMENT PROCESS |
| title_sort | repulping high wet strength waste banknote paper by a dual ph pretreatment process |
| topic | Waste banknote paper Repulping Wet-strength Dual-pH pretreatment |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_3_3701_Chen_SQS_Repulping_Banknote_Paper_Dual_pH/1630 |
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