Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Effects of fiber blending and diamines on wheat gluten materials reinforced with hemp fiber
University of Borås, School of Engineering.
Show others and affiliations
2010 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 45, no 15, 4196-4205 p.Article in journal (Refereed) Published
Abstract [en]

Wheat gluten (WG) is a promising base material for production of "green'' plastics, although reinforcement is needed in more demanding applications. Hemp fiber is a promising reinforcement source but difficulties exist in obtaining desired properties with a WG-based matrix. This study aimed at improving fiber dispersion and fiber-matrix interactions using a high speed blender and a diamine as a cross-linker. Samples were manufactured using compression molding, two types of blenders and addition of diamine. Mechanical properties were assessed with tensile testing. Tensile-fractured surfaces were examined with scanning electron microscopy (SEM). Protein polymerization and fiber-protein matrix interactions were examined using high performance liquid chromatography (HPLC) and confocal laser scanning microscopy (CLSM). The results showed that a higher-speed grinding yielded a more even distribution of fibers and a more polymerized protein structure compared to a lower-speed grinding. However, these improvements did not result in increased strength, stiffness, and extensibility for the higher-speed grinding. The strength was increased when the grinding was combined with addition of a diamine (Jeffamine EDR-176). HPLC, SEM, and CLSM, indicated that diamine added samples showed a more "plastic'' appearance together with a stiffer and stronger structure with less cracking compared to samples without diamine. The use of the diamine also led to an increased polymerization of the proteins, although no effect on the fiber-protein matrix interactions was observed using microscopical techniques. Thus, for future successful use of hemp fibers to reinforce gluten materials, an appropriate method to increase the fiber-protein matrix interaction is needed.

Place, publisher, year, edition, pages
Springer New York LLC , 2010. Vol. 45, no 15, 4196-4205 p.
Keyword [sv]
Energi och material
National Category
Materials Engineering Polymer Chemistry
Identifiers
URN: urn:nbn:se:hb:diva-2973DOI: 10.1007/s10853-010-4514-4Local ID: 2320/7331OAI: oai:DiVA.org:hb-2973DiVA: diva2:871067
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2016-11-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Cho, Sung-Woo
By organisation
School of Engineering
In the same journal
Journal of Materials Science
Materials EngineeringPolymer Chemistry

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 57 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf