University of Jyväskylä | JYX Digital Repository

  • English  | Give feedback |
    • suomi
    • English
 
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
  • JYX
  • Opinnäytteet
  • Kandidaatintutkielmat
  • View Item
JYX > Opinnäytteet > Kandidaatintutkielmat > View Item

Improving methods in X-ray nanotomography of fibre bonds

Thumbnail
View/Open
4.5 Mb

Downloads:  
Show download detailsHide download details  
Authors
Sormunen, Tuomas
Date
2017
Discipline
Fysiikka

 
X-ray nanotomography has proven to be a useful yet challenging method in the study of cellulose fibre bonds. The challenges encountered in previous researches are related to lengthy imaging times and low success rate per sample. To counter these obstacles, fibre staining in order to enhance contrast in radiographic images and an alternative method for marker particle placement were examined in this study. Cesium iodide proved to be a suitable staining material, and the alternative method for particle placement may increase success rate by reducing microfibril structure fracturing during the marker placement process.
Keywords
X-ray nanotomography fibre bond pulp cellulose
URI

http://urn.fi/URN:NBN:fi:jyu-201708243556

Metadata
Show full item record
Collections
  • Kandidaatintutkielmat [4767]

Related items

Showing items with similar title or keywords.

  • Measuring the contact area in cellulose fibre bonds using X-ray nanotomography 

    Sormunen, Tuomas (2018)
    Paperi on stokastinen verkosto toisiinsa eri vuorovaikutusten, tärkeimpänä vetysidosten, avulla sitoutuneita sellukuituja. Paperin lujuus riippuu yksittäisten kuitusidosten lujuudesta ja sidospinta-alasta. Todellista ...
  • Improved Reactivity and Derivatization of Cellulose after Pre-Hydrolysis with Commercial Enzymes 

    Willberg-Keyriläinen, Pia; Ropponen, Jarmo; Lahtinen, Manu; Pere, Jaakko (North Carolina State University, 2019)
    Reactivity is an important parameter when considering the chemical modification or dissolution of cellulose. Different pretreatment methods affect cellulose reactivity by decreasing its degree of polymerization (DP) and ...
  • Cellulose nanofibrils prepared by gentle drying methods reveal the limits of helium ion microscopy imaging 

    Ketola, Annika E.; Leppänen, Miika; Turpeinen, Tuomas; Papponen, Petri; Strand, Anders; Sundberg, Anna; Arstila, Kai; Retulainen, Elias (Royal Society of Chemistry, 2019)
    TEMPO-oxidized cellulose nanofibrils (TCNFs) have unique properties, which can be utilised in many application fields from printed electronics to packaging. Visual characterisation of TCNFs has been commonly performed using ...
  • Use of micro-tomography for validation of method to identify interfacial shear strength from tensile tests of short regenerated cellulose fibre composites 

    Hajlane, A.; Miettinen, Arttu; Madsen, B.; Beauson, J.; Joffe, R. (Institute of Physics Publishing Ltd., 2016)
    The interfacial shear strength of short regenerated cellulose fibre/polylactide composites was characterized by means of an industry-friendly adhesion test method. The interfacial shear strength was back-calculated from ...
  • Improving statistical classification methods and ecological status assessment for river macroinvertebrates 

    Ärje, Johanna (University of Jyväskylä, 2016)
    Aquatic ecosystems are facing a growing number of human-induced stressors and the need to implement more biomonitoring to assess the ecological status of water bodies is eminent. This dissertation aims at providing tools ...
  • Browse materials
  • Browse materials
  • Articles
  • Conferences and seminars
  • Electronic books
  • Historical maps
  • Journals
  • Tunes and musical notes
  • Photographs
  • Presentations and posters
  • Publication series
  • Research reports
  • Research data
  • Study materials
  • Theses

Browse

All of JYXCollection listBy Issue DateAuthorsSubjectsPublished inDepartmentDiscipline

My Account

Login

Statistics

View Usage Statistics
  • How to publish in JYX?
  • Self-archiving
  • Publish Your Thesis Online
  • Publishing Your Dissertation
  • Publication services

Open Science at the JYU
 
Data Protection Description

Accessibility Statement

Unless otherwise specified, publicly available JYX metadata (excluding abstracts) may be freely reused under the CC0 waiver.
Open Science Centre