Improvement in Compressive Behavior of Alkali-treated Wood Fibre-reinforced Bio-based Polyurethane Foams-Reference-Cited by-同舟云学术

Improvement in Compressive Behavior of Alkali-treated Wood Fibre-reinforced Bio-based Polyurethane Foams

Published:2014-05 Issue:3 Volume:33 Page:139-158
ISSN:0262-4893
Container-title:Cellular Polymers
language:en
Short-container-title:Cellular Polymers

Author:

Chang Li-Chi¹,Sain Mohini²³,Kortschot Mark¹

Affiliation:

1. Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St., Toronto, Ontario, Canada M5S 3E5

2. Faculty of Forestry, University of Toronto, 33 Willcocks Street, Toronto, Canada M5S 3BS

3. Adjunct, King Abdulaziz University, Abdullah Sulayman, Jeddah, Saudi Arabia

Abstract

Alkali-treated wood fibre-reinforced polyurethane (PU) foams were fabricated with a free-rising foaming process. The surface chemistry of alkali-treated wood fibres was characterized using in situ Fourier transform infrared spectroscopy (FTIR), and the fibre surface morphology was explored using scanning electron microscopy (SEM). X-ray computed tomography (CT) was performed to observe the cell structure of foams incorporating the treated wood fibres. Compression tests were conducted and the influence of treated fibres on the compressive strength and modulus of PU foam was investigated. The foams reinforced with treated fibres exhibited increase of 40% in strength and 64% in modulus. The high surface roughness and high aspect ratio of the treated fibres contributed to these improved mechanical properties through enhanced interfacial bond strengths.

Publisher

SAGE Publications

Subject

Organic Chemistry,Polymers and Plastics

Link

http://journals.sagepub.com/doi/pdf/10.1177/026248931403300302

Reference33 articles.

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