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Synthesis and Acoustic Study of a New Tung Oil-Based Polyurethane Composite Foam with the Addition of Miscanthus Lutarioriparius

1
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
2
School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(7), 1144; https://doi.org/10.3390/polym11071144
Received: 17 May 2019 / Revised: 28 June 2019 / Accepted: 30 June 2019 / Published: 4 July 2019
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Abstract

Polyurethane foam is commonly used in the automobile industry due to its favorable acoustic performances. In this study, a new tung oil-based polyurethane composite foam (TOPUF) was prepared by a one-step method. Different forms and contents of miscanthus lutarioriparius (ML) were used in TOPUF for improving acoustic performance. Polyurethane foams were characterized by means of Fourier transform infrared and SEM. The acoustic properties and mechanical properties of TOPUF, obtained with ML, were determined and compared with pure petroleum-based polyurethane foam. The results illustrate that the modification of TOPUF with the ML has a positive effect on the acoustic and mechanical properties in comparison to the unmodified foam. TOPUF obtained with ML powders has better acoustic performance than that obtained with ML strips. The optimum acoustic performance is achieved at the filler content of 0.3 wt%. The average sound absorption coefficient and transmission loss can reach 0.518, and 19.05 dB, respectively. View Full-Text
Keywords: bio-based polyurethane foam; Filler; miscanthus lutarioriparius; acoustic performance; mechanical properties bio-based polyurethane foam; Filler; miscanthus lutarioriparius; acoustic performance; mechanical properties
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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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Ji, Y.; Chen, S.; Cheng, Y. Synthesis and Acoustic Study of a New Tung Oil-Based Polyurethane Composite Foam with the Addition of Miscanthus Lutarioriparius. Polymers 2019, 11, 1144.

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