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Relating bending stiffness measurements across various free span lengths, TAPPI Journal August 2020

ABSTRACT: Bending stiffness should be an intrinsic property of a material, so it is puzzling that the TAPPI Standard Test Method T 836 “Bending stiffness, four point method” specifies span lengths when testing different types of corrugated fiberboard. These specified spans often limit the samples that can be measured with this method. To better understand the relationship between bending stiffness and span length, we performed measurements on a range of materials at different spans. The results provide a practical tool enabling comparison of bending stiffness measurements made at various span lengths. Additionally, this note discusses several areas that could serve as the foundation for more fundamental work exploring the bending behavior of corrugated board.

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Open Access
Editorial: Kathleen Bennett: Opportunities for paper are pro

Editorial: Kathleen Bennett: Opportunities for paper are proliferating, TAPPI JOURNAL May 2016

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Open Access
Combustion behavior of kraft black liquor droplets from hot

Combustion behavior of kraft black liquor droplets from hot water pretreated hardwood and softwood chips, November 2016 TAPPI JOURNAL

Journal articles
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Open Access
Novel CaCO3-polymer nanocomposite fillers for the improvemen

Novel CaCO3-polymer nanocomposite fillers for the improvement of bagasse-based papers, November 2016 TAPPI JOURNAL

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Open Access
Static and dynamic sorption of lignin removed Populus euramericana, TAPPI JOURNAL February 2018

Static and dynamic sorption of lignin removed Populus euramericana, TAPPI JOURNAL February 2018

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Open Access
Lignocellulose fibers elaborating super-swollen three-dimensional cellulose hydrogels from solution in N, N-dimethylacetamide/lithium chloride, TAPPI JOURNAL February 2018

Lignocellulose fibers elaborating super-swollen three-dimensional cellulose hydrogels from solution in N, N-dimethylacetamide/lithium chloride, TAPPI JOURNAL February 2018

Journal articles
Magazine articles
Open Access
Functionalization of wood/plant-based natural celluslose fibers with nanomaterials: a review, TAPPI JOURNAL February 2018

Functionalization of wood/plant-based natural celluslose fibers with nanomaterials: a review, TAPPI JOURNAL February 2018

Journal articles
Magazine articles
Open Access
Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018

Editorial: The changing face of the coated paper industry, TAPPI JOURNAL January 2018

Journal articles
Magazine articles
Open Access
Editorial: TAPPI Journal reinstates the “Technical Brief” short-form research paper, TAPPI Journal June 2019

ABSTRACT: For many years, TAPPI Journal (TJ) accepted submissions of “Technical Briefs” (also known as Technical Notes or Brief Notes) in addition to the full-length papers peer-reviewed papers that you have typically seen in more recent years. The TJ Editorial Board is once again accepting these short-form papers, as readers may have noticed in the last issue with publication of Tom Lindstrom’s short nanocellulose re-view (TAPPI Journal 18[5]: 308[2019]). Another Technical Brief appears on p. 391 of the current issue.

Journal articles
Magazine articles
Open Access
The evolution of reel statistical methods, TAPPI Journal June 2019

ABSTRACT: Multiple statistical methods for calculating the variance partition analysis (VPA) of reel data have existed for decades. In the paper industry, VPA is also commonly known as reel statistics. VPA commonly consists of total variance (TOT) that is then divided into three components: cross direction (CD), machine direction (MD), and residual (RES). A common mathematical procedure is referred to as ANOVA (analysis of variance). TAPPI Standard Test Method T 545 “Cross-machine grammage profile measurement (gravimetric method)” addresses paper testing and includes the ANOVA equations that have also been used to analyze scanning data.In the 1990s, TAPPI published TIP 1101-01 “Calculation and partitioning of variance using paper machine scanning sensor measurements,” which contained simple formulas that were easy to implement and could be used by a nov-ice to generate statistics on a spreadsheet. All involved quality control system (QCS) suppliers agreed to support this common method in their QCS. TIP 1101 was recently revised, and this paper concerns the analysis of data collected from a scanning sensor in a QCS and the creation of a common method for the calculation of reel statistics by TAPPI’s Process Control Division.

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