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Materials 2016, 9(6), 469; doi:10.3390/ma9060469

Fabrication of Wood-Rubber Composites Using Rubber Compound as a Bonding Agent Instead of Adhesives

1
Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, China
2
College of Mechanical Engineering, Jiamusi University, Jiamusi 154007, China
3
Mechanical and Energy Engineering Department, University of North Texas, Denton, TX 76201, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Dariusz M. Bieliński
Received: 18 March 2016 / Revised: 17 April 2016 / Accepted: 31 May 2016 / Published: 14 June 2016
(This article belongs to the Special Issue Advances in Research on Elastomers)
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Abstract

Differing from the hot-pressing method in the manufacturing of traditional wood-rubber composites (WRCs), this study was aimed at fabricating WRCs using rubber processing to improve water resistance and mechanical properties. Three steps were used to make WRCs, namely, fiber-rubber mixing, tabletting, and the vulcanization molding process. Ninety-six WRC panels were made with wood fiber contents of 0%–50% at rotor rotational speeds of 15–45 rpm and filled coefficients of 0.55–0.75. Four regression equations, i.e., the tensile strength (Ts), elongation at break (Eb), hardness (Ha) and rebound resilience (Rr) as functions of fiber contents, rotational speed and filled coefficient, were derived and a nonlinear programming model were developed to obtain the optimum composite properties. Although the Ts, Eb and Rr of the panels were reduced, Ha was considerably increased by 17%–58% because of the wood fiber addition. Scanning electron microscope images indicated that fibers were well embedded in rubber matrix. The 24 h water absorption was only 1%–3%, which was much lower than commercial wood-based composites. View Full-Text
Keywords: wood fiber; rubber compound; rubber processing technology; panel properties; nonlinear programming wood fiber; rubber compound; rubber processing technology; panel properties; nonlinear programming
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shao, D.; Xu, M.; Cai, L.; Shi, S.Q. Fabrication of Wood-Rubber Composites Using Rubber Compound as a Bonding Agent Instead of Adhesives. Materials 2016, 9, 469.

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