Abdul Halim, Z. A. and Mat Yajid, M. A. and Idris, M. H. and Hamdan, H. (2017) Dispersion of polymeric-coated–silica aerogel particles in unsaturated polyester composites: effects on thermal-mechanical properties. Journal of Dispersion Science and Technology . pp. 1-9. ISSN 0193-2691 (In Press)
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Abstract
The thermal-mechanical properties of unsaturated polyester (UP) composite were enhanced by the dispersion of silica aerogel (SA) with preserved pores. Low-cost SA was prepared from rice husk via the sol-gel process and ambient pressure drying. A new method was proposed to encapsulate the hydrophobic aerogel surface pores with hydrophilic polyvinyl alcohol (PVA) film using the fluidized-bed coating process. The dispersion of PVA-coated aerogel with preserved pores in the polyester matrix resulted in an increase of specific compressive strength (44.1 MPa · cm3 g−1), thermal insulation (0.23 W m−1 K−1), and thermal stability (Tonset = 310°C), but decreased the glass transition temperature (Tg = 260°C).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Polymer matrix composites, silica aerogel, thermomechanical properties, unsaturated polyester resin |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 77177 |
| Deposited By: | Fazli Masari |
| Deposited On: | 31 May 2018 09:50 |
| Last Modified: | 31 May 2018 09:50 |
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