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Journal articles
Corrosion of Carbon Steel Tubes in the Mid-Furnance of Kraft Recovery Boilers--Environmental Characterization, TAPPI JOURNAL April 2009
Corrosion of Carbon Steel Tubes in the Mid-Furnance of Kraft Recovery Boilers--Environmental Characterization, TAPPI JOURNAL April 2009
Journal articles
Magazine articles
Citrus-based hydrocolloids: A water retention aid and rheology modifier for paper coatings, TAPPI Journal July 2019
ABSTRACT: The rheological and dewatering behavior of an aqueous pigmented coating system not only affects the machine runnability but also affects the product quality. The current study describes the use of natural hydrocol-loids derived from citrus peel fibers as a rheology modifier in paper coating applications. The results were compared with carboxymethyl cellulose (CMC) in a typical paper coating system. Water retention of the coating formulation was increased by 56% with citrus peel fibers compared to a default coating, and it also was higher than a CMC-containing coating. The Brookfield viscosity of paper coatings was found to increase with citrus peel fibers. Compared to CMC, different citrus peel fibers containing coating recipes were able to achieve similar or higher water retention values, with no change or a slight increase in viscosity. Coatings were applied on linerboard using the Mayer rod-coating method, and all basic properties of paper were measured to assess the impact of citrus peel fiber on the functional value of the coatings. Paper properties were improved with coated paper containing citrus peel fibers, including brightness, porosity, smoothness, surface bonding strength, and ink absorption.
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
A Statistical Study of Process Variables to Optimize a High Speed Curtain Coater: Part I, TAPPI JOURNAL January 2009
A Statistical Study of Process Variables to Optimize a High Speed Curtain Coater: Part I, TAPPI JOURNAL January 2009
Journal articles
Evaluation of Various Mechanical Pulping Processes for Mature and Juvenile Loblolly Pine in Lightweight Coated Paper, TAPPI JOURNAL March 2009
Evaluation of Various Mechanical Pulping Processes for Mature and Juvenile Loblolly Pine in Lightweight Coated Paper, TAPPI JOURNAL March 2009
Journal articles
Linking Pulp Variations to TMP Operation by Better Selection
Linking Pulp Variations to TMP Operation by Better Selection and Treatment of Process Data
Journal articles
A mathematical method for determining fiber wall thickness and fiber width , Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (117KB)
A mathematical method for determining fiber wall thickness and fiber width , Solutions! & TAPPI JOURNAL, February 2004, Vol. 3(2) (117KB)
Journal articles
OCC pulp fractionation-a comparative study of fractionated and unfractionated stock, TAPPI JOURNAL, Online Exclusive, January 2004, Vol. 3(1) (KB)
OCC pulp fractionation-a comparative study of fractionated and unfractionated stock, TAPPI JOURNAL, Online Exclusive, January 2004, Vol. 3(1) (KB)
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
Competitive analysis of north american newsprint producers using composite statistical indicators of product and process performance, TAPPI JOURNAL, March 2001, Vol. 84(3)
Competitive analysis of north american newsprint producers using composite statistical indicators of product and process performance, TAPPI JOURNAL, March 2001, Vol. 84(3)