Sound-Absorbing, Thermal-Insulating Material Based on Poly(methylsiloxane) Xerogel and Cellulose Nanofibers
Source abstract
Abstract
The automotive industry needs to improve energy efficiency rapidly to achieve carbon neutrality while creating a safe, secure, and comfortable driving environment for customers. Porous sound-absorbing materials and porous thermal insulators are typically used to satisfy these requirements despite limitations in mass and space. While these porous materials are similar, the microstructures they offer for high performance differ in the size and connectivity of their fluid phases, which enhances the difficulty of achieving excellent sound absorption and thermal insulation in the same material. In this study, a hydrophobic cellulose nanofiber–poly(methylsiloxane) xerogel composite was developed using computational microstructure modeling. This porous material has high porosity and excellent thermal insulation and sound absorption properties.
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Research context
OpenAlex topics: Aerogels and thermal insulation · High voltage insulation and dielectric phenomena · Acoustic Wave Phenomena Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Collaborative Research Laboratory, Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima 739-8527, Japan
Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima 739-8527, Japan
Technical Research Center, Mazda Motor Corporation, Hiroshima 730-8670, Japan
Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
Department of Mechanical Engineering, Kogakuin University, Tokyo 192-0015, Japan
Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima 739-8527, Japan
References (27)
Show source-provided references
1. Investigation of the effects of the microstructure on the sound absorption performance of polymer foams using a computational homogenization approach10.1016/j.euromechsol.2016.10.011 ↗
2. A homogenization approach for characterization of the fluid–solid coupling parameters in Biot’s equations for acoustic poroelastic materials10.1016/j.jsv.2015.04.030 ↗
3. Microstructure-based calculations and experimental results for sound absorbing porous layers of randomly packed rigid spherical beads10.1063/1.4890218 ↗
4. Microstructure, transport, and acoustic properties of open-cell foam samples: Experiments and three-dimensional numerical simulations10.1063/1.3673523 ↗
5. Frequency band structure and absorption predictions for multi-periodic acoustic composites10.1016/j.jsv.2009.11.030 ↗
6. Solid and gas thermal conductivity models improvement and validation in various porous insulation materials10.1016/j.ijthermalsci.2023.108164 ↗
7. Vibrational modes with long mean free path and large volumetric heat capacity drive higher thermal conductivity in amorphous zeolitic imidazolate Framework-410.1016/j.mtphys.2021.100516 ↗
8. Molecular dynamics simulations of lattice thermal conductivity and spectral phonon mean free path of PbTe: Bulk and nanostructures10.1016/j.commatsci.2011.08.016 ↗
9. Sound absorption of warp knitted spacer fabrics based on knit structure and nanofiber enhancement10.1177/1528083720903411 ↗
10. Polymorphisim, piezoelectricity and sound absorption of electrospun PVDF membranes with and without carbon nanotubes10.1016/j.compscitech.2016.03.001 ↗
11. Hierarchical pore structure based on cellulose nanofiber/ melamine composite foam with enhanced sound absorption performance10.1016/j.carbpol.2020.117405 ↗
12. Optimization and characterization of polyurethane electro-spun nano-membranes used for the surfaces of sound absorbent multi-layer sheets10.1080/00222348.2021.1889137 ↗
13. Sound absorption and thermal insulation properties of composite thermoplastic polyurethane/polystyrene (TPU/PS) nanofiber web and TPU nanofiber web and PS-extracted TPU/PS microfiber web10.1177/15280837211039568 ↗
14. A review on silica aerogel-based materials for acoustic applications10.1016/j.jnoncrysol.2021.120770 ↗
15. Katsura, D., Yamamoto, T., Yamakawa, K., Hatakeyama, N., Miura, R., Okajima, J., Inaba, K., Ishizawa, Y., Ochiai, H., and Yukawa, H. (2021, January 26–28). Development of thermal management and noise/vibration control material model technology by model-based research (MBR) 1st report. Proceedings of the JSAE Annual Congress (Spring) Proceedings, Online.
16. A generalized macroscopic model for sound absorbing poroelastic media using a homogenization method10.1016/j.cma.2010.08.009 ↗
17. Homogenizing the acoustic properties of the seabed: Part I10.1016/S0362-546X(00)85011-7 ↗
18. Homogenizing the acoustic properties of the seabed, part II10.1016/S0895-7177(00)00283-1 ↗
19. Sanchez-Palencia, E. (1980). Non-Homogeneous Media and Vibration Theory, Springer. Lecture Notes in Physics.
20. Yamamoto, T., Maruyama, S., Terada, K., Izui, K., and Nishiwaki, S. (2011, January 4–7). Prediction of sound absorption coefficients of poroelastic media by the homogenization method. Proceedings of the 40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE, Osaka, Japan.
21. Nanocellulose xerogels with high porosities and large specific surface areas10.3389/fchem.2019.00316 ↗
22. (2007). Acoustics—Determination of Sound Absorption Coefficient and Impedance in Impedance Tubes—Part 2: Transfer-Function Method (Standard No. JIS A 1405-2:2007).
23. (2023). Acoustics—Determination of Acoustic Properties in Impedance Tubes—Part 2: Two-Microphone Technique for Normal Sound Absorption Coefficient and Normal Surface Impedance (Standard No. ISO 10534-2:2023).
24. (2018). Acoustics—Determination of Airflow Resistance—Part 1: Static Airflow Method (Standard No. ISO 9053-1:2018).
25. (1999). Test Method for Thermal Resistance and Related Properties of Thermal Insulations—Part 2: Heat Flow Meter Apparatus (Standard No. JIS A 1412-2:1999).
26. (1991). Thermal Insulation—Determination of Steady-State Thermal Resistance and Related Properties—Heat Flow Meter Apparatus (Standard No. ISO 8301:1991).
27. Aerogels with 3D Ordered Nanofiber Skeletons of Liquid-CrystallineNanocellulose Derivatives as Tough and Transparent Insulators10.1002/anie.201405123 ↗