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Experimental and numerical analysis of the sound insulation property of wood plastic composites (WPCs) filled with precipitated CaCO3

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Published/Copyright: September 14, 2012
Holzforschung
From the journal Holzforschung Volume 67 Issue 3

Abstract

The sound transmission loss (STL) of precipitated calcium carbonate (PCC)-filled wood plastic composite (WPC) was studied using a numerical analysis method based on the mass law and sound scattering theory. Several physical models for explaining sound wave transmission in WPC were established, and relevant STL equations were derived. The STL of WPC filled with different PCC weight ratios was analyzed using these models. The results showed that the STL of WPC increased with an increase in sound frequency and PCC weight ratio. The improvement of sound insulation was attributed to the mass increase, sound scattering enhancement by the fillers, and PCC weight ratio. The predicted results showed similar trends to the experimental data under the same processing conditions. It was concluded that the proposed models can be used to analyze the STL of filled WPC. Larger inorganic particle size led to higher STL, but its effect was not obvious at lower frequency ranges. Predicted STL increased with increased weight ratio of wood for the whole frequency range tested.

Keywords: fillers; modeling; sound insulation; transmission loss; wood plastic composite
Corresponding author: Qinglin Wu, School of Renewable Natural Resources, Louisiana State University Agriculture Center, Baton Rouge, LA, 70803-6202, USA, Phone: +1-225-578-8369
Received: 2012-6-11
Accepted: 2012-8-23
Published Online: 2012-09-14
Published in Print: 2013-04-01

©2013 by Walter de Gruyter Berlin Boston

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https://doi.org/10.1515/hf-2012-0093
Keywords for this article
fillers; modeling; sound insulation; transmission loss; wood plastic composite

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Publisher’s Note
  4. Publisher’s Note
  5. Original Articles
  6. Effects of water in water/phenol mixtures on liquefaction of Japanese beech as treated under subcritical conditions
  7. Multistep degradation method for β-O-4 linkage in lignins: γ-TTSA method. Part 2: reaction of lignin model polymer (DHP)
  8. Antioxidant property of TCF pulp with a high hexenuronic acid (HexA) content
  9. Determination of absolute molecular weight of sodium lignosulfonates (NaLS) by laser light scattering (LLS)
  10. Effect of grinding conditions in oscillatory ball milling on the morphology of particles and cellulose crystallinity of Norway spruce (Picea abies)
  11. Rapid microwave-assisted acid extraction of southern pine waste wood to remove metals from chromated copper arsenate (CCA) treatment
  12. Moisture in softwoods: fiber saturation point, hydroxyl site content, and the amount of micropores as determined from NMR relaxation time distributions
  13. Experimental and numerical analysis of the sound insulation property of wood plastic composites (WPCs) filled with precipitated CaCO3
  14. Applicability of Vis-NIR hyperspectral imaging for monitoring wood moisture content (MC)
  15. Micromechanical detection of growth stress in wood cell wall by wide-angle X-ray diffraction (WAX)
  16. The influence of hot-press temperature and cooling rate on thermal and physicomechanical properties of bamboo particle-polylactic acid composites
  17. Semi-analytical prediction and experimental evaluation of material damping in wood panels
  18. Composition and antifungal activity of balsam from Liquidambar formosana Hance
  19. Short Note
  20. Inverse gas chromatography and XPS of extracted kraft pulps
  21. Book review
  22. Nanocellulose: From Nature to High Performance Tailored Material
  23. Meetings
  24. Meetings
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