Acoustic Study Based on Sustainable Green Polymer Treated with H₂O

Abstract:

Green polymer foam was prepared by the reaction of green monomer based on vegetable oil with commercial Polymethane Polyphenyl Isocyanate (Modified Polymeric-MDI) and distilled water (H₂O). The morphological study of green polymer foam was examined by Scanning Electron Microscope (SEM) and acoustic property by means of H₂O composition ratio equivalent to weight of polyol. It was found that the cell size of green polymer foam has significantly increment as well as H₂O loading increased. Increasing of H₂O more than 50% equivalent to weight of polyol shows nonuniform pore distribution, large average pore size and smallest number of pore. Furthermore, the cell size of neat green polymer foam gives 400μm up to 1833.3μm with high loading of H₂O. In addition, the cell size of green polymer foam influences by the increasing amount of H₂O loading and enhanced the sound absorption property at low frequency level.

• Periodical: Advanced Materials Research (Volume 748)
• Pages: 281-285
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.748.281
• Online since: August 2013
• Authors: Nik Normunira Mat Hassan, Anika Zafiah M. Rus, S. Nurulsaidatulsyida, Siti Rahmah Mohid
• Keywords: Methylene Diphenyl Diisocyanate (MDI), Polyol, Sound Absorption

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