Study on Thermal Insulating Behavior of Silica Glass Fiber/Aluminum Phosphate Composite

Abstract:

Thermal insulating behavior of silica glass fiber / aluminum phosphate composite was studied. The composite samples were prepared through hot-pressing of stacked pieces of plain woven fabric made from silica glass fiber with aluminum phosphate paste placed between the pieces of the fabric. When the mixture ratio of Al2O3:AlPO4:H2O was 10:2.88:2.88 in aluminum phosphate paste, the paste was suitable for preparing the composite. The thermal insulation of the composite was excellent, when volume content of fiber in the composite was from 27.6% to 33.57% and the densities of the composite were from 1.82 g/cm3 to 1.90 g/cm3. Heating test with oxyacetylene flame showed that when one face of the composite was heated up and hold at temperature of 1800°C for 10 mins, the temperature of the opposite face remained at 765°C to 775°C. The composite was not damaged during the above testing. As it was observed with microscope, there were little changes in microstructure of the composite after heat test.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 920-923
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.920
• Online since: June 2012
• Authors: Chun Peng Wang, Hai Lin Liu, Yan Li Huo, Jie Tang, Yu Feng Chen
• Keywords: Aluminium Phosphate, Composite, Thermal Insulation

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