Cellulose

, Volume 15, Issue 4, pp 555–559

The effect of fiber content on the mechanical and thermal expansion properties of biocomposites based on microfibrillated cellulose

Article

DOI: 10.1007/s10570-008-9212-x

Cite this article as:
Nakagaito, A.N. & Yano, H. Cellulose (2008) 15: 555. doi:10.1007/s10570-008-9212-x

Abstract

A new method to obtain composites of phenolic resin reinforced with microfibrillated cellulose with a wide fiber content was established and the mechanical properties were evaluated by tensile test. A linear increase in Young’s modulus was observed at fiber contents up to 40 wt%, with a stabilizing tendency for higher fiber percentages. These results were ratified by measurements of the coefficient of thermal expansion (CTE) relative to fiber content, which indicated a strong thermal expansion restriction rate below 60 wt% fiber content, indicating the effective reinforcement attained by the cellulose microfibrils. The low CTE achieved of 10 ppm/K is one of the important properties of cellulose composites.

Keywords

Cellulose nanofibers Microfibrillated cellulose Nanocomposites Phenol formaldehyde Young’s modulus CTE Fiber content 

Nomenclature

MFC

Microfibrillated cellulose

PF

Phenol-formaldehyde

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Research Institute for Sustainable HumanosphereKyoto UniversityGokasho, UjiJapan

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