Evaluation of Experimental Parameters in the Microbond Test with Regard to Lyocell Fibers

Author:

Adusumalli Ramesh-Babu1,Weber Hedda K.2,Roeder Thomas3,Sixta Herbert4,Gindl Wolfgang5

Affiliation:

1. Laboratory for Mechanics of Materials and Nanostructures, EMPA-Swiss Federal Research Institute for Material Science and Technology, Feuerwerkerstrasse 39 3602 Thun, Switzerland, , Kompetenzzentrum Holz GmbH, St.-Peter-Str. 25, 4021 Linz, Austria

2. Kompetenzzentrum Holz GmbH, St.-Peter-Str. 25, 4021 Linz, Austria, Lenzing R&D, 4860-Lenzing, Austria

3. Lenzing R&D, 4860-Lenzing, Austria

4. Lenzing R&D, 4860-Lenzing, Austria, Helsinki University of Technology, Vuorimiehentie 1, 02150 Espoo, Finland

5. Kompetenzzentrum Holz GmbH, St.-Peter-Str. 25, 4021 Linz, Austria, Department of Materials Science and Process Engineering, BOKU-Vienna, Peter Jordan Straße 82, 1190 Vienna, Austria

Abstract

Microbond technique is used to measure the interfacial shear strength (IFSS) of cellulose fiber-reinforced composites. Critical aspect ratios are provided for a variety of cellulose fiber-polymer matrix systems to avoid the fiber breakage during microbond test. The influence of fiber cross-section and droplet curing condition on the force-displacement curve and the corresponding change of IFSS are discussed for lyocell-polypropylene system. Finally, a relationship between the contact angle of a polymer drop on a fiber and IFSS is established for composite systems involving thermoset and thermoplastic matrices.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

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