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Journal articles
Magazine articles
Open Access
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
Open Access
Energy reduction at a kraft mill: examining the effects of process integration, benchmarking, and water reduction, TAPPI JOURNAL & Solutions! March 2005, Vol. 4(3)

Energy reduction at a kraft mill: examining the effects of process integration, benchmarking, and water reduction, TAPPI JOURNAL & Solutions! March 2005, Vol. 4(3)

Journal articles
Open Access
Laboratory- and mill-scale study of surfactant spray flotation deinking, TAPPI JOURNAL, October 2005, Vol. 4(10) (216 KB)

Laboratory- and mill-scale study of surfactant spray flotation deinking, TAPPI JOURNAL, October 2005, Vol. 4(10) (216 KB)

Journal articles
Open Access
Effects of pulverized coal fly-ash addition as a wet-end filler in papermaking, TAPPI JOURNAL September 2008

Effects of pulverized coal fly-ash addition as a wet-end filler in papermaking, TAPPI JOURNAL September 2008

Journal articles
Open Access
A gravity model analysis of China's pulp and paper products trade, TAPPI JOURNAL September 2008

A gravity model analysis of China's pulp and paper products trade, TAPPI JOURNAL September 2008

Journal articles
Open Access
Economic potential of black liquor electrolysis as a treatment option for small agro-based mills, TAPPI JOURNAL November 2009

Economic potential of black liquor electrolysis as a treatment option for small agro-based mills, TAPPI JOURNAL November 2009

Journal articles
Open Access
Heat integration opportunities in an average Scandinavian fine paper mill: Model study and comparison with a market pulp mill, TAPPI JOURNAL February 2008

Heat integration opportunities in an average Scandinavian fine paper mill: Model study and comparison with a market pulp mill, TAPPI JOURNAL February 2008

Journal articles
Open Access
Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)

Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)

Journal articles
Open Access
Metals buildup in TCF bleach plant closure: laboratory simulation, SOLUTIONS! & TAPPI JOURNAL, May 2002 (208KB)

Metals buildup in TCF bleach plant closure: laboratory simulation, SOLUTIONS! & TAPPI JOURNAL, May 2002 (208KB)

Journal articles
Open Access
The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)

The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)

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