Effects of Long-term Storage on the Mechanical Characteristics of Wood Plastic Composites Produced from Thermally Modified Wood Fibers

Author:

Follrich J.1,Müller U.2,Gindl W.3,Mundigler N.4

Affiliation:

1. Wood K plus - Competence Centre for Wood Composites and Wood Chemistry, A-4021 Linz, Austria,

2. Wood K plus - Competence Centre for Wood Composites and Wood Chemistry, A-4021 Linz, Austria

3. BOKU - University of Natural Resources and Applied Life Sciences Department of Material Sciences and Process Engineering, Institute of Wood Science and Technology, Vienna, Austria

4. BOKU - University of Natural Resources and Applied Life Sciences Department for Agrobiotechnology, IFA-Tulln, Institute for Natural Materials Technology, Vienna, Austria

Abstract

In order to study possible changes in the mechanical properties of wood plastic composites produced from thermally modified wood fibers as reinforcement material (60%) and polypropylene (40%) after long-term storage under constant conditions, tensile and flexural specimens were tested in the years 2004 and 2009 after storage at 20°C and 65% humidity. Increased tensile strength, Young’s modulus (tensile test) as well as modulus of elasticity (flexural test) were observed for the long-term stored samples indicating a positive effect of the storage conditions on the mechanical properties of the samples.

Publisher

SAGE Publications

Subject

Condensed Matter Physics,Ceramics and Composites

Reference30 articles.

1. Caulfield, D.F., Clemons, C., Jacobson, R.E. and Rowell, R.M. ( 2005). WoodThermoplastic Composites, In: Rowell, R.M. (ed.), Handbook of Wood Chemistry, Wood Composites, Ch. 13, pp. 366-368, Taylor and Francis, Boca Raton.

2. Challenges in Biomass–Thermoplastic Composites

3. The effect of chemical modification on the strength of wood and bonded wood joints

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