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- W174687600 abstract "Bio-monomer were named based on the starting vegetable oils as virgin oilmonomer (VOM), 'popia' oil monomer (POM), and mixed oil monomer (MOM).MOM has been identified to have the lowest OH index with 0.093 compared to POMand VOM, meanwhile tensile strength for Virgin Oil Polymer (VOP) shows highestresult with 5.69 MPa compared to MOP that is 4.48 MPa. The lowest OH formationwith low strength of waste oil was used and utilized for sound absorption application.Bio-polymer composites foams were prepared with different ratio of waste lyre rubber(WTR) and wood dust (WD) fillers by opened mould method (OMM) and closed mouldmethod (CMM) with composite and hybrid fillers loading. By OMM, bio-polymercomposite with foaming agent for all percentages of fillers shows high a at mediumfrequency level (Hz). WTRFMOPlo and WDFMOP7.5 had high potential as an efficientsound absorption material with a approximately equal to 0.95 and 0.9 respectively at2500 Hz. Bio-polymer composite loading with WTR at different percentages fillerloading shows a approximately 1.0 at different frequency level and WTRMOPS showsthe highest a that is 0.99 at 3962 Hz. Bio-polymer composite loading with WD atdifferent percentages filler loading shows a is approximately to 1.0 at high frequencyabove 4000 Hz and WDMOP7.5 shows the highest a that is 0.99 at 5000 Hz. For CMMwith composite fillers loading, WTRFMOP,o and WTRFMOP5 shows maximum peakof a around 0.8 while WDFMOPlo shows maximum peak of a around 0.7 meanwhileWTRMOP7 5 and WDMOP2 5 gives a around 0.79 and 0.95 respectively. By increasingthe percentage loading of waste fillers and foaming agent, at maximum 10% (by wt/wtof bio-monomer) loading for both filler and foaming agent, evidently, the pores sizedecreases and less uniform structure comprised of large elongated strips-like poresinterconnected by smaller pores of different pore sizes take placed. Meanwhile,increasing waste fillers loading without foaming agent shows a decreased and unevenpores size distribution under Scanning Electron Microscope (SEM). This revealed theinfluence of foaming agent as stabilizer to the polymeric foam while for fillers loadingacts as reactive agent for some bubble nucleants and the surplus is prone to agglomerateand isn't efficient for bubble nucleation for pores formation in the system." @default.
- W174687600 created "2016-06-24" @default.
- W174687600 creator A5003551431 @default.
- W174687600 date "2011-08-01" @default.
- W174687600 modified "2023-09-23" @default.
- W174687600 title "Utilization of low hydroxyl content of waste oil polymer foam doped with waste materials for sound absorption application" @default.
- W174687600 hasPublicationYear "2011" @default.
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