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Journal articles
Open Access
Moisture performance of silica-paper hybrids in the hygroscopic range, TAPPI Journal March 2026

ABSTRACT: Vapor retarders, crucial in building constructions, are traditionally made from plastic-based materials, raising environmental concerns due to the use of fossil materials. This study explores the potential of functionalized papers, particularly silica-paper hybrids, as sustainable alternatives. This work delves into the moisture properties of sol-gel coated linter papers, considering the water vapor permeability and physisorption behavior following DIN EN ISO 12572 and DIN EN ISO 12571. The study addresses hysteresis, noting the lower hysteresis of mesoporous coatings in comparison to dense coatings and implying benefits in moisture release. Findings underscore the need for a nuanced understanding of coating characteristics and their impact on sorption. In order to better assess the relationship between the coating content of the papers and their specific sorption properties, further investigations, such as the measurement of specific surface properties (e.g., specific surface area), are required. The findings of the water vapor diffusion resistance measurement study demonstrate a correlation between the observed resistance and the vapor levels. The results show that the water vapor diffusion resistance is elevated at lower vapor levels when compared to higher levels. This particular material behavior is typically employed within the construction industry for the utilization of moisture-variable water vapor retarders. The silica-paper hybrids exhibit a response that indicates the potential for advancement into a moisture-variable water vapor barrier.

Journal articles
Open Access
Effects of in-plane straining on the out-of-plane delamination properties of paperboard, TAPPI Journal March 2026

ABSTRACT: Delamination strength is an essential property for the creasing and folding operations of paperboard into boxes. Due to fixation during creasing, the paperboard suffers in-plane straining. In the present study, we aim to increase our understanding of how in-plane straining affects the delamination properties of paperboard. Samples of paperboard were first strained in in-plane tensile loading, both in the machine-direction and in the cross-direction. Afterward, the paperboard is loaded in the out-of-plane (ZD) direction. Three different grades of commercial paperboard from two major manufacturers were tested in a climate-controlled lab. The results showed similar results for all grades of paperboard, with the delamination strength and the out-of-plane stiffness decreasing virtually linearly with pre-straining. With about 5% plastic in-plane straining, the strength was reduced by about 20% and the stiffness decreased by more than 50% for all grades of paperboard. Normalizing the strength and the stiffness with their values without pre-straining reveals virtually the same relation for all grades of paperboard. If proven to be a general result, this will prove valuable in reducing the demand for experiments.

Journal articles
Open Access
Factors influencing the treatment of paper with fluorochemicals for oil repellency, TAPPI JOURNAL, September 1999, Vol. 82(9)

Factors influencing the treatment of paper with fluorochemicals for oil repellency, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
The top six forces shaping electrical distribution and management in the pulp and paper Industry, TAPPI JOURNAL, September 1999, Vol. 82(9)

The top six forces shaping electrical distribution and management in the pulp and paper Industry, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
Bed cooling following an esp, TAPPI JOURNAL, September 1999, Vol. 82(9)

Bed cooling following an esp, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
A method for the deacidification of papers and books, TAPPI JOURNAL, November 1996, Vol. 79(11)

A method for the deacidification of papers and books, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Open Access
Redesigned technical center speeds development of specialty products, TAPPI JOURNAL, November 1996, Vol. 79(11)

Redesigned technical center speeds development of specialty products, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Open Access
Help for concrete floors in a wet environment, TAPPI JOURNAL, November 1996, Vol. 79(11)

Help for concrete floors in a wet environment, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Open Access
Are you losing maintenance dollars in inventory, TAPPI JOURNAL, November 1996, Vol. 79(11)

Are you losing maintenance dollars in inventory, TAPPI JOURNAL, November 1996, Vol. 79(11)

Journal articles
Open Access
Roll-wrapping concepts in the 1990's, TAPPI JOURNAL, October 1996, Vol. 79(10)

Roll-wrapping concepts in the 1990's, TAPPI JOURNAL, October 1996, Vol. 79(10)

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