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Magazine articles
Open Access
What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

What's new with tappi test methods?, TAPPI JOURNAL, September 2000, Vol. 83(9)

Magazine articles
Open Access
Energy: recovering capital and cutting costs, TAPPI JOURNAL, November 2000, Vol. 83(11)

Energy: recovering capital and cutting costs, TAPPI JOURNAL, November 2000, Vol. 83(11)

Magazine articles
Open Access
Setting a limit, TAPPI JOURNAL, July 2002, Vol. 1(5) (52KB)

Setting a limit, TAPPI JOURNAL, July 2002, Vol. 1(5) (52KB)

Magazine articles
Open Access
A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

Magazine articles
Open Access
The role of science in setting the environmental agenda, TAPPI JOURNAL, September 2000, Vol. 83(9)

The role of science in setting the environmental agenda, TAPPI JOURNAL, September 2000, Vol. 83(9)

Magazine articles
Open Access
The r & t system: everyone is responsible for innovation, TAPPI JOURNAL, September 2000, Vol. 83(9)

The r & t system: everyone is responsible for innovation, TAPPI JOURNAL, September 2000, Vol. 83(9)

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.

Magazine articles
Open Access
An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
A guide to developing a best management practices (bmp) plan for spent liquor, part II, TAPPI JOURNAL, December 1999, Vol. 82(12)

A guide to developing a best management practices (bmp) plan for spent liquor, part II, TAPPI JOURNAL, December 1999, Vol. 82(12)

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