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Journal articles
Guest Editorial: TAPPI Journal showcases the best of PEERS 2012, TAPPI JOURNAL July 2013
Guest Editorial: TAPPI Journal showcases the best of PEERS 2012, TAPPI JOURNAL July 2013
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
Visualization of the recovery-boiler flow fields predicted by computational fluid dynamics, TAPPI JOURNAL, March 1992, Vol. 75(3)
Visualization of the recovery-boiler flow fields predicted by computational fluid dynamics, TAPPI JOURNAL, March 1992, Vol. 75(3)
Journal articles
Alkaline pulping kinetics of short-rotation, intensively cultured hybrid poplar, TAPPI JOURNAL, November 1992, Vol. 75(11)
Alkaline pulping kinetics of short-rotation, intensively cultured hybrid poplar, TAPPI JOURNAL, November 1992, Vol. 75(11)
Journal articles
Survey of drum debarkers in roundwood chipping yards of southeastern united states, TAPPI JOURNAL, November 1992, Vol. 75(11)
Survey of drum debarkers in roundwood chipping yards of southeastern united states, TAPPI JOURNAL, November 1992, Vol. 75(11)
Journal articles
Behavior of steel core in the unwinding process, TAPPI JOURNAL, October 1992, Vol. 75(10)
Behavior of steel core in the unwinding process, TAPPI JOURNAL, October 1992, Vol. 75(10)
Journal articles
Valves: corrosion and maintenance, TAPPI JOURNAL, August 1993, Vol. 76(8)
Valves: corrosion and maintenance, TAPPI JOURNAL, August 1993, Vol. 76(8)
Journal articles
Xylanase treatment for the bleaching of softwood kraft pulps: the effect of chlorine dioxide substitution, TAPPI JOURNAL, August 1993, Vol. 76(8)
Xylanase treatment for the bleaching of softwood kraft pulps: the effect of chlorine dioxide substitution, TAPPI JOURNAL, August 1993, Vol. 76(8)
Journal articles
Polyelectrolyte interactions with papermaking fibers: the mechanism of surface-charge decay, TAPPI JOURNAL, December 1993, Vol. 76(12)
Polyelectrolyte interactions with papermaking fibers: the mechanism of surface-charge decay, TAPPI JOURNAL, December 1993, Vol. 76(12)
Journal articles
ISO 9000 requirements for pulp and paper testing equipment maintenance, TAPPI JOURNAL, February 1993, Vol. 76(2)
ISO 9000 requirements for pulp and paper testing equipment maintenance, TAPPI JOURNAL, February 1993, Vol. 76(2)