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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
Subscription Access
Estimating Short Circuit Data on a Personal Computer Spreads

Estimating Short Circuit Data on a Personal Computer Spreadsheet Program, 1990 Engineering Conference Proceedings

Journal articles
Open Access
Use of Simulation Models in the On-Line Control and Optimiza

Use of Simulation Models in the On-Line Control and Optimization of the Refining Process, 1991 Engineering Conference Proceedings

Journal articles
Open Access
Case Histories of Three Yankee Cracking Incidents Associated

Case Histories of Three Yankee Cracking Incidents Associated with Shell Edge Extensions, 1991 Engineering Conference Proceedings

Journal articles
Subscription Access
Application of Triggered Fault Current Limiters in the Pulp

Application of Triggered Fault Current Limiters in the Pulp and Paper Industry, 1991 Engineering Conference Proceedings

Journal articles
Open Access
Theoretical Drying Study of Single-Tier Versus Conventional

Theoretical Drying Study of Single-Tier Versus Conventional Two-Tiered Dryer Configurations, 1992 Engineering Conference Proceedings

Journal articles
Open Access
Online monitoring of inorganic cooking chemicals in white liquor by pulse voltammetry, TAPPI JOURNAL August 2010

Online monitoring of inorganic cooking chemicals in white liquor by pulse voltammetry, TAPPI JOURNAL August 2010

Journal articles
Open Access
CFD-Based Modeling of Kraft Char Beds â?¢ Part 2: A Study on the Effects of Droplet Size and Bed Shape on Bed Processes, TAPPI JOURNAL February 2010

CFD-Based Modeling of Kraft Char Beds • Part 2: A Study on the Effects of Droplet Size and Bed Shape on Bed Processes, TAPPI JOURNAL February 2010

Journal articles
Open Access
Study on the Chemical Modification Process of Jute Fiber, TAPPI JOURNAL February 2010

Study on the Chemical Modification Process of Jute Fiber, TAPPI JOURNAL February 2010

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