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Journal articles
Open Access
Water minimization in the washing section of a paperboard mill, TAPPI JOURNAL, September 2000, Vol. 83(9)

Water minimization in the washing section of a paperboard mill, TAPPI JOURNAL, September 2000, Vol. 83(9)

Journal articles
Open Access
A virtuous circle, TAPPI JOURNAL, December 2000, Vol. 83(12)

A virtuous circle, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
An engineered approach to paper and print improvement, TAPPI JOURNAL, December 2000, Vol. 83(12)

An engineered approach to paper and print improvement, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
Biological destruction of haps for cluster rule compliance, TAPPI JOURNAL, December 2000, Vol. 83(12)

Biological destruction of haps for cluster rule compliance, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
Calcium in pulping and bleaching, TAPPI JOURNAL, December 2000, Vol. 83(12)

Calcium in pulping and bleaching, TAPPI JOURNAL, December 2000, Vol. 83(12)

Journal articles
Open Access
Deinking of newspaper assisted by steam explosion, TAPPI JOURNAL, December 2000, Vol. 83(12)

Deinking of newspaper assisted by steam explosion, TAPPI JOURNAL, December 2000, Vol. 83(12)

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
Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Journal articles
Open Access
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

Journal articles
Open Access
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)

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