Mechanical properties of polydimethylsiloxanes (PDMS) reinforced silica derived rice husk ash
Additional filler in polydiiethylsiloxane (PDMS) has successfully enhanced the properties of the composites. This paper highlights the role of rice husk silica (RHS) in improving the vibration and tensile properties of PDMS. The PDMSRHS composite panels were fabricated via casting technique and cure...
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| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7020/ http://eprints.uthm.edu.my/7020/1/img%2D906143339.pdf |
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| Summary: | Additional filler in polydiiethylsiloxane (PDMS) has successfully enhanced the
properties of the composites. This paper highlights the role of rice husk silica (RHS) in improving
the vibration and tensile properties of PDMS. The PDMSRHS composite panels were fabricated
via casting technique and cured at 100 "C. PDMS/RHS composites were analyzed for hand arm
vibration exposure analysis using IS0 8662 standard and tensile properties conducted using ASTM
D412 standard. In vibration exposure study, addition of RHS inPDMS had decreased the vibration
exposure to 47%. The tensile properties of PDMSRHS panels showed improvement in the tensile
strength with 15% increment compared to unfilled PDMS. Both analyses had proven that RHS
plays a vital role as a filler and reinforcement to improve the properties of PDMS. In tension mode,
RHS act as reinforcement to bear and transmit the load efficiently to matrix and in terms of
vibration exposure, significantly decreased the vibration acceleration value.
Penambahan pengisi di dalam polydimethylsiloxane (PDMS) telah berjaya meningkatkan sifat
-sifat komposit. Kajian ini menekankan peranan siliia sekam padi (RHS) didalam menambahbaik
sifat - sifat getaran dan tegangan PDMS. Panel komposit PDMSRHS dihasilkan melalui kaedah
tuangan dan dirawat pada suhu 100 "C. Komposit PDMSRHS dianalisa berdasarkanpiawaian IS0
8662 untuk mengkaji kesan pendedahan gegaran pada tangan dan sifat - sifat tegangan diiaji
berpandukan piawaian ASTM D412. Hasil daripada kajian pendedahan getaran, penambahan RHS
ke dalam PDMS telah mengurangkan pendedahan getaran sebanyak 47%. Sifat - sifat tegangan
PDMSIRHS menunjukkan peningkatan sebanyak 15% berbanding PDMS tanpa pengisi. Kedua -
dua ujian yang dijalankan telah membuktikan bahawa RHS memainkan peranan penting sebagai
pengisi untuk meningkatkan sifat - sifat PDMS. Dalam mod tegangan, RHS bertindak sebagai
penguat untuk menahan dan memindahkan beban kepada matrik dan dalam konteks pendedahan
getaran, ia dengan jelas telah m e n d a n nilai pecutan getaran |
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