Preparation of Light-Weight Forsterite Insulation Materials Through Extrusion Processing

Li Yang; Yuan Bing Li; Ming Jun Ma; Lei Zhao; Mei Jiang; Ya Wei Li; Shu Jing Li

doi:10.4028/www.scientific.net/KEM.512-515.998

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Preparation of Light-Weight Forsterite Insulation...

Preparation of Light-Weight Forsterite Insulation Materials Through Extrusion Processing

Abstract:

Light-weight insulation materials were prepared by extrusion processing using forsterite raw tailings, light-burned magnesia and fused magnesia as main raw materials with addition of rice hull powder as a pore-forming agent. The results show that the plasticity of green compact and the cold compressive strength of bricks are improved with the addition of 2-3 wt% dextrin as plasticizer. Light weight insulation materials, which meet different application requirements, were prepared by controlling the addition amount of rice hull powder by firing at 1550 °C with volume weight of obtained materials varies from 1.4-1.8 g/cm3, thermal conductivity at 600 °C is less than 0.48 W/(m•K), cold compressive strength varies from 8-24MPa and reheating linear change rate is less than 1% (1400°C × 6h).

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Periodical:

Key Engineering Materials (Volumes 512-515)

Pages:

998-1002

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.998

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Online since:

June 2012

Authors:

Li Yang, Yuan Bing Li, Ming Jun Ma, Lei Zhao, Mei Jiang, Ya Wei Li, Shu Jing Li

Keywords:

Extrusion Processing, Forsterite, Light-Weight Insulation Materials

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References

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