Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
Journal articles
Magazine articles
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
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
Study of a model of cellulose depolymerization in the hypochlorite bleaching stage, TAPPI JOURNAL April 1988 88APR157
Study of a model of cellulose depolymerization in the hypochlorite bleaching stage, TAPPI JOURNAL April 1988
Journal articles
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
A wet-laid process for the preparation of random fiber-reinforced composites, TAPPI JOURNAL August 1988
A wet-laid process for the preparation of random fiber-reinforced composites, TAPPI JOURNAL August 1988
Journal articles
Acid-insoluble and acid-soluble lignin characteristics in kraft pulping of hybrid salix clones, TAPPI JOURNAL August 1988
Acid-insoluble and acid-soluble lignin characteristics in kraft pulping of hybrid salix clones, TAPPI JOURNAL August 1988
Journal articles
DTPMPA: polyamino polyphosphonic acid and its use in paper related processes-Part 2: paper production from silicate-free pulp bleached with DTPMPA as a stabilizer, TAPPI JOURNAL August 1988
DTPMPA: polyamino polyphosphonic acide and its use in paper related processes-Part 2: paper production from silicate-free pulp bleached with DTPMPA as a stabilizer, TAPPI JOURNAL August 1988
Journal articles
Nonwood fiber: Number 2, and trying harder-An interview with Dr. Joseph E. Atchison, TAPPI JOURNAL August 1988
Nonwood fiber: Number 2, and trying harder-An interview with Dr. Joseph E. Atchison, TAPPI JOURNAL August 1988
Journal articles
Significance of PM10 regulations for the forest products industry, TAPPI JOURNAL August 1988
Significance of PM10 regulations for the forst products industry, TAPPI JOURNAL August 1988
Journal articles
Fibers properties and tearing resistance, TAPPI JOURNAL February 1988 88FEB103
Fibers properties and tearing resistance, TAPPI JOURNAL February 1988