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Journal articles
Open Access
Photoyellowing of mechanical pulps - part 2: activation spectra for light-induced yellowing of newsprint paper by polychromatic radiation, TAPPI JOURNAL, May 1995, Vol. 78(5)

Photoyellowing of mechanical pulps - part 2: activation spectra for light-induced yellowing of newsprint paper by polychromatic radiation, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
Surface characterization of non-chlorine-bleached pulp fibers and calcium carbonate Coatings using inverse gas chromatography, TAPPI JOURNAL, May 1995, Vol. 78(5)

Surface characterization of non-chlorine-bleached pulp fibers and calcium carbonate Coatings using inverse gas chromatography, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
Feasibility of using kenaf chemithermomechanical pulp in printing and writing paper, TAPPI JOURNAL, May 1995, Vol. 78(5)

Feasibility of using kenaf chemithermomechanical pulp in printing and writing paper, TAPPI JOURNAL, May 1995, Vol. 78(5)

Journal articles
Open Access
Fuzzy logic modeling and optimization of a wood chipper, TAPPI JOURNAL, February 1994, Vol. 77(2)

Fuzzy logic modeling and optimization of a wood chipper, TAPPI JOURNAL, February 1994, Vol. 77(2)

Journal articles
Open Access
Biodegradation of wood extractives from southern yellow pine by ophiostoma piliferum, TAPPI JOURNAL, January 1994, Vol. 77(1)

Biodegradation of wood extractives from southern yellow pine by ophiostoma piliferum, TAPPI JOURNAL, January 1994, Vol. 77(1)

Journal articles
Open Access
Effects of fiber length and coarseness on pulp flocculation, TAPPI JOURNAL, February 1995, Vol. 78(2)

Effects of fiber length and coarseness on pulp flocculation, TAPPI JOURNAL, February 1995, Vol. 78(2)

Journal articles
Open Access
Effects of lipases on birch extractives, February 1995 Tappi Journal [95Feb140.pdf]

Effects of lipases on birch extractives, TAPPI JOURNAL, February 1995, Vol. 78(2)

Journal articles
Magazine articles
Open Access
Kraft pulp viscosity as a predictor of paper strength: Its uses and abuses, TAPPI Journal October 2023

ABSTRACT: For bleached kraft pulps, two factors govern paper strength: the individual fiber strength, and the bond strength that adheres the individual fibers together in the paper matrix. Inherent fiber strength is related to the length of the carbohydrate polymers, also known as the degree of polymerization (DP). Average DP (DP) is inferred by performing pulp viscosity measurements. Under certain circumstances during kraft pulping and bleaching, the average polymer lengths can be shortened, resulting in lower pulp viscosity, and may indicate fiber damage. Fiber damage typically manifests itself as a reduction in tear strength for well-bonded handsheets.This paper will review the literature on how pulp viscosity can predict paper/fiber strength and how it can be used as a diagnostic tool. It can be a means to monitor pulp quality during pulping and bleaching, as well as to alert when such operations approach a critical threshold. However, viscosity losses must be carefully and judiciously analyzed. Like most diagnostic tools, viscosity measurements can be misused and abused, which can lead to incorrect inferences about intrinsic fiber strength. This review will also cover these misuses. The overall goal is to provide the papermaker a better understanding of what pulp viscosity is, how it correlates to potential sheet strength, and what its limitations are. It will be illustrated that when pulp viscosity drops below a critical value, it will indicate an appreciable deterioration in the paper’s tear and tensile strength.

Journal articles
Magazine articles
Open Access
Effects of different ammonium lignosulfonate contents on the crystallization, rheological behaviors, and thermal and mechanical properties of ethylene propylene diene monomer/polypropylene/ammonium lignosulfonate composites, TAPPI Journal January 2020

ABSTRACT: Thermoplastic elastomer (TPE), made from ethylene propylene diene monomer (EPDM) and polypropylene (PP) based on reactive blending, has an excellent processing performance and characteristics and a wide range of applications. However, there are currently no reports in the literature regarding the usage of TPE in making composite boards. In this paper, EPDM, PP, and ammonium lignosulfonate (AL) were used as the raw materials, polyethylene wax was used as the plasticizer, and a dicumyl peroxide vulcanization system with dynamic vulcanization was used to make a new kind of composite material. This research studied the influences of the AL contents on the crystallization behaviors, rheological properties, thermal properties, and mechanical properties of the composites. The results showed that the AL content had a noticeable impact on the performance of the composite board. Accordingly, this kind of composite material can be used as an elastomer material for the core layer of laminated flooring.

Journal articles
Magazine articles
Use of Ozone for Cooling Towers. Paper360º July/August 2020

Use of Ozone for Cooling Towers. Paper360º July/August 2020

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