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Journal articles
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Open Access
Monitoring the free lime content in lime mud using zeta potential, TAPPI JOURANL April 2018

Monitoring the free lime content in lime mud using zeta potential, TAPPI JOURANL April 2018

Journal articles
Magazine articles
Understanding extensibility of paper: Role of fiber elongation and fiber bonding, TAPPI Journal March 2020

ABSTRACT: The tensile tests of individual bleached softwood kraft pulp fibers and sheets, as well as the micro-mechanical simulation of the fiber network, suggest that only a part of the elongation potential of individual fibers is utilized in the elongation of the sheet. The stress-strain curves of two actual individual pulp fibers and one mimicked classic stress-strain behavior of fiber were applied to a micromechanical simulation of random fiber networks. Both the experimental results and the micromechanical simulations indicated that fiber bonding has an important role not only in determining the strength but also the elongation of fiber networks. Additionally, the results indicate that the shape of the stress-strain curve of individual pulp fibers may have a significant influence on the shape of the stress-strain curve of a paper sheet. A large increase in elongation and strength of paper can be reached only by strengthening fiber-fiber bonding, as demonstrated by the experimental handsheets containing starch and cellulose microfibrils and by the micromechanical simulations. The key conclusion related to this investigation was that simulated uniform inter-fiber bond strength does not influence the shape of the stress-strain curve of the fiber network until the bonds fail, whereas the number of bonds has an influence on the activation of the fiber network and on the shape of the whole stress-strain curve.

Journal articles
Magazine articles
Open Access
Synthesis of filtrate reducer from biogas residue and its application in drilling fluid, TAPPI Journal March 2020

ABSTRACT: Biogas residues (BR) containing cellulose and lignin are produced with the rapid development of biogas engineering. BR can be used to prepare the filtrate reducer of water-based drilling fluid in oilfields by chemical modification. BR from anaerobically fermenting grain stillage was alkalized and etherified by caustic soda and chloroacetic acid to prepare filtrate reducer, which was named as FBR. The long-chain crystalline polysaccharides were selected as dispersing agents (DA), and the water-soluble silicate was used as the cross-linking agent. After the hot rolling of FBR in saturated saltwater base mud for 16 h at 120°C, the filtration loss was increased from 7.20 mL/30 min before aging to 8.80 mL/30 min after aging. Compared with the commercial filtrate reducers, FBR had better tolerance to high temperature and salt, and lower cost.

Journal articles
Open Access
Recent developments in pressure-sensitive adhesives, TAPPI JOURNAL April 1988 88APR129

Recent developments in pressure-sensitive adhesives, TAPPI JOURNAL April 1988

Journal articles
Open Access
Automotive nonwoven filter medial: their constructions and filter mechanisms, TAPPI JOURNAL April 1988 88APR161

Automotive nonwoven filter medial: their constructions and filter mechanisms, TAPPI JOURNAL April 1988

Journal articles
Open Access
A fast-track approach through the design and permit phases for an ash landfill, TAPPI JOURNAL August 1988

A fast-track approach through the design and permit phases for an ash landfill, TAPPI JOURNAL August 1988

Journal articles
Open Access
Fibers properties and tearing resistance, TAPPI JOURNAL February 1988 88FEB103

Fibers properties and tearing resistance, TAPPI JOURNAL February 1988

Journal articles
Open Access
Oxygen bleaching of kraft pulp: high consistency vs. medium consistency, TAPPI JOURNAL February 1988 88FEB47

Oxygen bleaching of kraft pulp: high consistency vs. medium consistency, TAPPI JOURNAL February 1988

Journal articles
Open Access
88jan44

Trends in European paper machine drive technology, TAPPI JOURNAL January 1988

Journal articles
Open Access
Techniques for expanding the sphere of statistical process control, TAPPI JOURNAL July 1988

Techniques for expanding the sphere of statistical process control, TAPPI JOURNAL July 1988

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