DOI > 10.5291/ILL-DATA.9-13-469

This proposal is publicly available since 11/23/2017

Title

Nanoscale deformation mechanisms underlying the strength of cellulose-based materials

Abstract

Plants and materials derived from them, such as wood and natural fibres, are nanocomposites that derive their strength largely from cellulose microfibrils. Each cellulose microfibril contains ordered and disordered domains that co-operate in determining its mechanical properties. The accessibility of cellulose is the key to its suitability as a substrate for biofuel manufacture. Hydroxyl groups in the disordered domains are deuterium-exchangeable, providing SANS contrast and permitting the WANS contributions of the ordered and disordered domains to be separated. By carrying out these experiments under mechanical tension we will characterise the relative importance of reorientation, stretching and shear slippage of the microfibrils in the deformation of Sitka spruce wood. These experiments will be extended to non-coniferous plant materials.

Experimental Report

Download Data

Please note that you will need to login with your ILL credentials to download the data.

Download Data

Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

JARVIS Michael; FORSYTH Victor Trevor; GRILLO Isabelle; MARTEL Anne and THOMAS Lynne. (2012). Nanoscale deformation mechanisms underlying the strength of cellulose-based materials. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-13-469

Cited by

This data has not been cited by any articles.

Metadata

Experiment Parameters

  • Environment temperature

    ambient
  • Experiment energy

    2A

Sample Parameters

  • Formula

    • cellulose, (C6H11O5)20000, partially deuterated
  • Consistence

    polymer
  • Mass

    300
  • Size

    500
  • Surface

    250
  • Space

    P21
  • Unit cell A

    8.0
  • Unit cell B

    8.2
  • Unit cell C

    10.4
  • Gamma

    97
  • Container

    Stretching device in humidity chamber