The Study of Heating Mode of an Expansion Insulation Material

Abstract:

A new kind of alumina fiber-based expandable insulation material was designed using expandable graphite, alumina fiber and aluminum phosphate adhesives, and fabricated through wet mixing, vacuum suction filter, pressure drying. This material had 100%-300% of volume expansion ratio under temperatures from 400 to 1000°C, well heat insulation performance and mechanical property after expansion. Due to the special expanding property of expandable graphite, the heating mode will seriously impact on the properties of material. In this paper, the influence of two different heating-up modes on the material properties had been studied. At slowly heating-up mode, the expansion ratio almost maintained at 115%, and the compression strength increased visibly comparing with fast heating-up. At one-side heating-up mode, the expansion ratio was lower than the all-side heating-up mode, which respectively were 164.9 % and 226.9% at 800°C, and the compression strength increased slightly because of the extension of heat treatment time.

• Periodical: Solid State Phenomena (Volume 281)
• Pages: 934-939
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.281.934
• Online since: August 2018
• Authors: Kai Fang*, Yu Feng Chen, S.C. Zhang, Hao Ran Sun, Xian Kai Sun, Da Chen Yan, L.S. Tao
• Keywords: Expandable Graphite, Expansion Insulation Material, Heating Mode

References

[1] R. Arambakam, H. Vahedi Tafreshi, B. Pourdeyhimi. A simple simulation method for designing fibrous insulation materials, Materials and Design. 44 (2013) 99-106.

DOI: 10.1016/j.matdes.2012.07.058

[2] Ye Fei, Zhu Chen-guang, Zhang Zi-hao. Study on the linear expansion model of expandable graphite. Carbon Techniques.34(2015)10-14.

[3] Randy J. Tobe, Ramana V. Grandhi. Hypersonic vehicle thermal protection system model optimization and validation with vibration tests, J. Aerospace Science and Technology. 28 (2013) 208-213.

DOI: 10.1016/j.ast.2012.11.001

[4] Kai Fang, YufengChen, Shichao Zhang. The Effect of the Particle Size of Expandable Graphite on the Properties of an Expandable Thermal Insulation Material, Key Engineering Materials.697(2016)441-444.

DOI: 10.4028/www.scientific.net/kem.697.441

[5] Kai Fang, YufengChen, Shichao Zhang. Preparation and Properties of an Expandable Material, Journal of Synthetic Crystals. 44 (2015) 226-229.

[6] Hong fang Zhu, Qi liang Zhu, Juan Li, Kang Tao. Synergistic effect between expandable graphite and ammonium polyphosphate on flame retarded polylactide, J. Polymer Degradation and Stability. 96 (2011) 183-187.

DOI: 10.1016/j.polymdegradstab.2010.11.017

[7] Jiangsong Zhang, Ruiying Luo, Min Jiang, et al. The preparation and performance of a novel room-temperature-cured heat-resistant adhesive for ceramic bonding, Materials Science and Engineering. 528 (2011) 2952-2959.

DOI: 10.1016/j.msea.2010.11.091