Quantitative surface analysis of hemp fibers using XPS, conventional and low voltage in-lens SEM

Truss, Rowan W., Wood, Barry and Rasch, Ron (2016) Quantitative surface analysis of hemp fibers using XPS, conventional and low voltage in-lens SEM. Journal of Applied Polymer Science, 133 8: 1-9. doi:10.1002/app.43023


Author Truss, Rowan W.
Wood, Barry
Rasch, Ron
Title Quantitative surface analysis of hemp fibers using XPS, conventional and low voltage in-lens SEM
Journal name Journal of Applied Polymer Science   Check publisher's open access policy
ISSN 1097-4628
0021-8995
Publication date 2016-02-02
Sub-type Article (original research)
DOI 10.1002/app.43023
Open Access Status Not yet assessed
Volume 133
Issue 8
Start page 1
End page 9
Total pages 9
Place of publication Hoboken, NJ, United States
Publisher John Wiley and Sons
Language eng
Subject 1600 Chemistry
2508 Surfaces, Coatings and Films
2507 Polymers and Plastics
2505 Materials Chemistry
Abstract Surfaces of hemp fibers with different treatments: (1) as received; (2) water washed; and (3) treated with NaOH, were examined using a combination of conventional Scanning Electron Microscopy (SEM), lignin staining and a novel low voltage in-lens detector SEM technique which provides compositional contrast between polymeric materials on the surface. Surface composition determined using quantitative X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDS) showed that the surfaces of the as received fibers and the water washed fibers were predominantly lignin and extractives and only after NaOH treatments was there sufficient oxygen on the surface to allow for the presence of polysaccharides. Using the in-lens backscattered SEM technique, spatial distribution of polymeric materials on the surface was shown to be highly non-uniform. The findings have implications for design of natural fiber composites and the interfacial properties between fiber and matrix.
Keyword Biomaterials
Composites
Fibers
Microscopy
Surfaces and interfaces
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Centre for Microscopy and Microanalysis Publications
 
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