Abdul Halim, Zulhelmi Alif and Mat Yajid, Muhamad Azizi and Idris, Mohd. Hasbullah and Hamdan, Halimaton (2018) Dispersion of polymeric-coated-silica aerogel particles in unsaturated polyester composites: Effects on thermal-mechanical properties. Journal of Dispersion Science and Technology, 39 (8). pp. 1093-1101. ISSN 0193-2691
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Official URL: http://dx.doi.org/10.1080/01932691.2017.1382375
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 |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Mechanical Engineering |
| ID Code: | 83956 |
| Deposited By: | Siti Nor Hashidah Zakaria |
| Deposited On: | 31 Oct 2019 10:10 |
| Last Modified: | 05 Nov 2019 04:33 |
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