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Journal articles
A model for thawing frozen wood using microwave energy, Journal of Pulp and Paper Science, January 2001, Vol. 27(1)
A model for thawing frozen wood using microwave energy, Journal of Pulp and Paper Science, January 2001, Vol. 27(1)
Journal articles
Prioritization for an r&t program: tools that help to achieve consensus, TAPPI JOURNAL, July 2001, Vol. 84(7)
Prioritization for an r&t program: tools that help to achieve consensus, TAPPI JOURNAL, July 2001, Vol. 84(7)
Journal articles
Cost comparison between a high temperature membrane bioreactor and a steam stripper for the treatment of foul evaporator condensate for reuse, TAPPI JOURNAL, June 2001, Vol. 84(6)
Cost comparison between a high temperature membrane bioreactor and a steam stripper for the treatment of foul evaporator condensate for reuse, TAPPI JOURNAL, June 2001, Vol. 84(6)
Journal articles
Seeking break-throughs in environmental performance, Solutions!, November 2001, Vol. 84(11)
Seeking break-throughs in environmental performance, Solutions!, November 2001, Vol. 84(11)
Journal articles
Spill Control: Assessing Your Situation, Solutions!, November 2001, Vol. 84(11)
Spill control: assessing your situation, Solutions!, November 2001, Vol. 84(11)
Journal articles
Arundo Donax L. Reed: New Perspectives for Pulping and Bleaching - Oranosolv Delignification 2001 TAPPI Peer-reviewed Papers / Solutions!, November 2001 / VOL. 84: NO. 11 [01NOVSO54.pdf]
Arundo donax l. reed: new perspectives for pulping and bleaching—organosolv delignification, Solutions!, November 2001, Vol. 84(11)
Journal articles
Modelling the distribution of "free", complexed and precipitated metal ions in a pulp suspension using donnan equilibria, Journal of Pulp and Paper Science, September 2001, Vol. 27(9)
Modelling the distribution of "free", complexed and precipitated metal ions in a pulp suspension using donnan equilibria, Journal of Pulp and Paper Science, September 2001, Vol. 27(9)
Journal articles
Magazine articles
Preparation of regenerated cellulose from rice straw lignocellulosic waste and its use for reinforced paper products, TAPPI Journal July 2021
ABSTRACT: Rice straw waste is a lignocellulosic waste produced by farmers in large quantities. In this study, regenerated cellulose (RC) from rice straw was prepared by dissolving rice straw holocellulose (HC) in NaOH/Urea/Thio-urea/Water solution by the freeze-thawing process. The crystallinity index of RC was calculated at 31%, which is out of the crystallinity range of 39%•69% that has been previously suggested.The study indicated that the RC is amorphous with a low degree of polymerization (638) and higher hydroxyl group content as compared to HC. The fiber length of RC was found to be 26.7% shorter; however, the width of RC was 21.2% higher as compared to HC. Reduced kinked fiber content was observed in the fraction of RC (18.3%) as compared with HC (39.1%), and a higher curl index of fiber was observed more so in HC (10.5%) than RC (5.6%). Because of the regeneration process, the fiber length was reduced and a fines element content of about 96% was observed in RC compared to the initial fines content of HC (56.9%). Irrespective of the high fines element content of RC, the composite paper of rice straw bleached pulp and RC fibers was developed with an increase in the tensile index from 41.4 N.m/g to 71.2 N.m/g and an increase in the burst index from 4.7 kPa.m2/g to 5.3 kPa.m2/g with the addition of 5% and 15% RC, respectively. However, enhanced tear index of paper was observed up to 5% and then it declined upon further addition of RC. The study revealed that regenerated cellulose can be used as a strength additive to overcome the shortcomings of low mechanical properties in paper products.
Journal articles
Magazine articles
Lignin carbohydrate complex studies during kraft pulping for producing paper grade pulp from birch, TAPPI Journal September 2020
ABSTRACT: Paper grade pulp production across the globe is dominated by the kraft process using different lignocellulosic raw materials. Delignification is achieved around 90% using different chemical treatments. A bottleneck for complete delignification is the presence of residual covalent bonds that prevail between lignin and carbohydrate even after severe chemical pulping and oxygen delignification steps. Different covalent bonds are present in native wood that sustain drastic pulping conditions. In this study, 100% birch wood was used for producing paper grade pulp, and the lignin carbohydrate bonds were analyzed at different stages of the kraft cook. The lignin carbohydrate bonds that were responsible for residual lignin retention in unbleached pulp were compared and analyzed with the original lignin-carbohydrate complex (LCC) bonds in native birch wood. It was shown that lignin remaining after pulping and oxygen delignification was mainly bound to xylan, whereas the lignin bound to glucomannan was for the most part degraded.
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º September/October 2020
TAPPI Journal Summaries, Paper360º September/October 2020