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Journal articles
Continuous Time Domain Characterization of Mixing in Agitated Pulp Chests, TAPPI JOURNAL May 2008
Continuous Time Domain Characterization of Mixing in Agitated Pulp Chests, TAPPI JOURNAL May 2008
Journal articles
Are your thermowells safe?, TAPPI JOURNAL, April 2002 (270KB), (TAPPI JOURNAL APRIL 2002)
Are your thermowells safe?, SOLUTIONS! & TAPPI JOURNAL, April 2002 (270KB)
Journal articles
Practical experiences in additive screening using a torque-based flocculation analyzer, TAPPI JOURNAL, August 2002 (159KB)
Practical experiences in additive screening using a torque-based flocculation analyzer, Solutions! & TAPPI JOURNAL, August 2002 (159KB)
Journal articles
Drainage interactions between the headbox, forming fabric(s), dewatering elements, and their impact on converting operations, TAPPI JOURNAL, August 2002 (50KB)
Drainage interactions between the headbox, forming fabric(s), dewatering elements, and their impact on converting operations, Solutions! & TAPPI JOURNAL, August 2002 (50KB)
Journal articles
Linear transformation, its application in the paper industry, TAPPI JOURNAL, August 2002 (78KB)
Linear transformation, its application in the paper industry, Solutions! & TAPPI JOURNAL, August 2002 (78KB)
Journal articles
Improvement of paper properties using starch-modified precipitated calcium carbonate filler, TAPPI JOURNAL & Solutions! February 2005, Vol. 4(2) (304KB)
Improvement of paper properties using starch-modified precipitated calcium carbonate filler, TAPPI JOURNAL & Solutions! February 2005, Vol. 4(2) (304KB)
Journal articles
Magazine articles
Flow characteristics of drag-reducing natural bamboo fiber suspensions with minimal environmental load, TAPPI Journal September 2019
ABSTRACT: The reduction of pipe friction loss by adding drag-reducing agents has attracted attention as an aid to energy conservation. Drag-reducing agents induce drag reduction (DR) effects and should have a minimal environmental load, with natural resource-saving potential. This study demonstrates bamboo fiber as a drag-reducing agent that saves natural resources and has a low environmental load. Using pressure drop measurements, we report DR with suspensions of bamboo fibers with the average diameter of 13.3 µm and aspect ratio of 98.7. The maximum DR obtained in this experiment is 43% at the concentration of 4000 ppm and pipe diameter of 30 mm; DR is affected by the Reynolds number, suspension concentration, and pipe diameter. In addition, the bamboo fibers can be easily removed from the suspensions by filtration. We found that low-environmental-load bamboo fiber has DR effects like those of other fibers; its effects are greater than those of conventional synthetic fibers and wood pulp. Furthermore, it is resistant to mechanical degradation, recoverable, and recyclable. Therefore, DR effects can be selectively obtained by adding the fibers only when DR is needed; the fibers can then be collected when DR is no longer necessary. This method might greatly expand the application range of DR agents. The results demonstrate the usefulness of bamboo fibers as DR additives.
Journal articles
Magazine articles
Lignin-based resins for kraft paper applications, TAPPI Journal November 2019
ABSTRACT: We investigated miscanthus (MS) and willow (W) lignin-furfural based resins as potential reinforce-ment agents on softwood and hardwood kraft paper. These resins might be sustainable alternatives to the commercial phenolformaldehyde (PF) resins. Phenol is a petrochemical product and formaldehyde has been classified as a carcinogen by the U.S. Environmental Protection Agency. The lignin used in this study was derived from hot water extraction (160ºC, 2 h) of MS and W biomass, and may be considered sulfur-free. These biorefinery lignins were characterized for their chemical composition and inherent properties via wet chemistry and instrumental techniques. The resin blends (MS-resin and W-resin) were characterized for their molecular weight, thermal behavior, and mechanical properties. Mechanical properties were measured by the resin’s ability to reinforce softwood and hard-wood kraft papers. The effect of adding hexamethylenetetramine (HMTA), a curing agent, to the resin was also examined. Mixtures of PF and lignin-based resins were investigated to further explore ways to reduce use of non-renewables, phenol, and carcinogenic formaldehyde. The results show that lignin-based resins have the potential to replace PF resins in kraft paper applications. For softwood paper, the highest strength was achieved using W-resin, without HMTA (2.5 times greater than PF with HMTA). For hardwood paper, MS-resin with HMTA gave the highest strength (2.3 times higher than PF with HMTA). The lignin-based resins, without HMTA, also yielded mechanical properties comparable to PF with HMTA.
Journal articles
Introducing molasses as a new additive in papermaking, TAPPI JOURNAL, August 2007
Introducing molasses as a new additive in papermaking, TAPPI JOURNAL, August 2007
Journal articles
A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007
A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007