Archives of Acoustics, 42, 4, pp. 707–714, 2017
10.1515/aoa-2017-0073

Multi-Objective Optimization of Acoustical Properties of PU-Bamboo-Chips Foam Composites

Yang JIANG
Jilin University
China

Shuming CHEN
Jilin University
China

Dengfeng WANG
Jilin University
China

Jing CHEN
Jilin University
China

In this study, an effective optimization approach was proposed to improve acoustical behaviors of PU foams. The important parameters of PU foams: content of water, silicone oil and catalyst A1 were chosen and their effects on sound absorption coefficient and transmission loss of PU foams were studied by using Taguchi methods. In addition, bamboo chips were incorporated into PU foams as fillers to improve the acoustical properties of PU foams. Four controlled factors: the content of water, silicone oil, catalyst A1 and bamboo chips with three levels for each factor were chosen and Taguchi method based on orthogonal array L9(34) was employed to conduct the experiments. Based on the results of Taguchi’s orthogonal array L9(34), signal-to noise (S/N) analysis was used and developed to determine an optimal formulation of PU-bamboo-chips foam composites.
Keywords: vehicle sound package; sound absorption coefficient; transmission loss; Taguchi method
Full Text: PDF
Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

References

Adeli H, Zein S.H.S., Tan S.H., Ahmad A.L. (2011), Optimization of the mechanical strength properties of poly(l-lactide)/multi-walled carbon nanotube scaffolds using response surface methodology, Nano: Brief Reports and Reviews, 6, 2, 113–122.

ASTM International standard E-1050-98 (1998), Standard test method for impedance and absorption of acoustical materials using a tube, two micro-phones and a digital frequency analysis system, West Conshohocken, USA.

ASTM International standard E-2611-09 (2009), Standard test method for measurement of normal incidence sound transmission of acoustical materials based on the transfer matrix method, West Conshohocken, USA.

Andersson A., Lundmark S., Magnusson A, Mauer F.H.J. (2010), Vibration and acoustic damping of flexible polyurethane foams modified with a hyperbranched polymer, Journal of Cellular Plastic, 46, 1, 73–93.

Bahrambeygi H., Sabetzadeh N., Rabbi A., Nasouri K., Shoushtari A.M. (2013), Nanofibers (PU and PAN) and nanoparticles (Nanoclay and MWNTs) simultaneous effects on polyurethane foam sound absorption, Journal of Polymer Research, 20, 2, 72–81.

Ekici B., Kentli A., Kucuk H. (2012), Improving sound absorption property of polyurethane foamsby adding tea-leaf fibers, Archives of Acoustics, 37, 4, 515–520.

Gayathri R., Vasanthakumari R. (2014), Nanomaterials in PU foam for enhanced sound absorption at low frequency region, Advanced Materials Research, 938, 170–175.

Gayathri R., Vasanthakumari R., Padmanabhan C. (2013), Sound absorption, thermal and mechanical behavior of polyurethane foam modified with nano silica, nano clay and crumb rubber fillers, International Journal of Scientific and Engineering Research, 4, 5, 301–308.

Gwon J.G., Kim S.K., Kim J.H. (2016), Sound absorption behavior of flexible polyurethane foams with distinctcellular structures, Material and Design, 89, Supplement C, 448–454.

Huda S., Reddy N., Yang Y.Q. (2012), Ultra-light-weight composites from bamboo strips and polypropylene web with exceptional flexural properties, Composites: Part B, 43, 3, 1658–1664.

ISO International Standard 10534-2 (1998), Acoustic-determination of sound absorption coefficient and impedance in impedance tube: Part 2. Transfer-function method.

Lee J., Kim G.-H., Ha C.-S. (2012), Sound absorption properties of polyurethane/nano-silica nanocomposite foams, Journal of Applied Polymer Science, 123, 4, 2384–2390.

Li T.-T., Chuang Y.-C., Huang C.-H., Lou C.-W., Lin J.-H. (2015), Applying vermiculite and perlite fillers to sound-absorbing thermal-insulating resilient PU foam composites, Fibers and Polymers, 16, 3, 691–698.

Low K.L., Tan S.H., Zein S.H.S., McPhail D.S., Boccaccini A.R. (2011), Optimization of the mechanical properties of calcium phosphatemulti-walled carbon nanotubesbovine serum albumin composites using response surface methodology, Materials and Design, 32, 6, 3312–3319.

Wang Y.H., Zhang C.C., Ren L.Q., Ichchou M., Galland M.-A., Bareille O. (2013), Influences of rice hull in polyurethane foam on its sound absorption characteristics, Polymer Composites, 34, 11, 1847–1855.

Welch W.J., Buck R.J., Sacks J., Wynn H.P., Mitchell T.J., Morris M.D. (1992), Screening, predicting, and computer experiments, Technometrics, 34, 1, 15–25.

Yin G.G., Oweimreen T., Ladewig J. (2011), Varying the polyurethane foam ratio for better acoustic performance and mass savings, SAE Technical Paper 2011-01-1736, https://doi.org/10.4271/2011-01-1736.

Zhang C.H., Li J.Q., Hu Z., Zhu F., Huang Y. (2012), Correlation between the acoustic and porous cell morphology of polyurethane foam: Effect of interconnected porosity, Materials and Design, 41, 319–325.

Zhou H., Li B., Huang G. (2006), Sound absorption characteristics of polymer microparticles, Journal of Applied Polymer Science, 101, 4, 2675–2679.




DOI: 10.1515/aoa-2017-0073