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Journal articles
Open Access
Automatic winder slitter positioning using a programmable logic controller, TAPPI JOURNAL August 1988

Automatic winder slitter positioning using a programmable logic controller, TAPPI JOURNAL August 1988

Journal articles
Open Access
The use of proton NMR for pitch analysis-a case study, TAPPI JOURNAL August 1988

The use of proton NMR for pitch analysis-a case study, TAPPI JOURNAL August 1988

Journal articles
Open Access
Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Journal articles
Open Access
TAPPI survey of 1987 incomes, TAPPI JOURNAL August 1988

TAPPI survey of 1987 incomes, TAPPI JOURNAL August 1988

Journal articles
Open Access
Guest Editorial: Carrying forward the tradition of fundamental research, TAPPI Journal June 2026

Since its first symposium in 1957, the Fundamental Research Symposium has evolved around fundamental research themes aimed at scientifically understanding papermaking. The symposium is organized by the Fundamental Research Committee (FRC), which is operated by the Fundamental Research Society (FRS). The unique format of the symposium, held at universities such as Oxford and Cambridge where participants stay together, fosters intensive academic exchange and collegial interaction.

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
Magazine articles
7 Water Waste Reduction Strategies to Improve Pump Reliability/Black Liquor Processing, Paper360º November/December 2019

7 Water Waste Reduction Strategies to Improve Pump Reliability/Black Liquor Processing, Paper360º November/December 2019

Journal articles
Magazine articles
Walter Schalka: RISI’s Four-time Latin American CEO of the Year, Paper360º September/October

Walter Schalka: RISI’s Four-time Latin American CEO of the Year, Paper360º September/October

Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º September/October

TAPPI Journal Summaries, Paper360º September/October

Journal articles
Magazine articles
UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019

UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019

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