Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
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
Formation of polychlorinated phenolic compounds during high chlorine dioxide substitution bleaching: part 1: laboratory investigation, TAPPI JOURNAL, August 1994, Vol. 77(8)
Formation of polychlorinated phenolic compounds during high chlorine dioxide substitution bleaching: part 1: laboratory investigation, TAPPI JOURNAL, August 1994, Vol. 77(8)
Journal articles
Formation of polychlorinated phenolic compounds during high chlorine dioxide substitution bleaching part 3: mill trial results, TAPPI JOURNAL, August 1994, Vol. 77(8)
Formation of polychlorinated phenolic compounds during high chlorine dioxide substitution bleaching part 3: mill trial results, TAPPI JOURNAL, August 1994, Vol. 77(8)
Journal articles
The impact of web oven parameters on 20 degrees print gloss, TAPPI JOURNAL, October 1994, Vol. 77(10)
The impact of web oven parameters on 20 degrees print gloss, TAPPI JOURNAL, October 1994, Vol. 77(10)
Journal articles
Bleached fiber from occ, TAPPI JOURNAL, September 1994, Vol. 77(9)
Bleached fiber from occ, TAPPI JOURNAL, September 1994, Vol. 77(9)
Journal articles
Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)
Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)
Journal articles
Treatability of wastewaters from totally chlorine-free bleaching, TAPPI JOURNAL, August 1995, Vol. 78(8)
Treatability of wastewaters from totally chlorine-free bleaching, TAPPI JOURNAL, August 1995, Vol. 78(8)
Journal articles
Refining: Good practice for refining the types of fiber found in modern paper furnishes, February 1995 Tappi Journal [95Feb147.pdf]
Good practice for refining the types of fiber found in modern paper furnishes, TAPPI JOURNAL, February 1995, Vol. 78(2)
Journal articles
Superheated steam drying of paper: effect of sulfonation level, TAPPI JOURNAL, July 1995, Vol. 78(7)
Superheated steam drying of paper: effect of sulfonation level, TAPPI JOURNAL, July 1995, Vol. 78(7)
Journal articles
Reducing chlorinated organic compounds from bleached kraft mills through first stage substitution of chlorine dioxide for chlorine, TAPPI JOURNAL, June 1995, Vol. 78(6)
Reducing chlorinated organic compounds from bleached kraft mills through first stage substitution of chlorine dioxide for chlorine, TAPPI JOURNAL, June 1995, Vol. 78(6)