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Add nanomaterials on properties of fiber insulation board

Author: YinXiangYang
Tutor: GuoRuiSongï¼›XuYueHua
School: Tianjin University
Course: Materials Engineering
Keywords: Nanomaterials Refractory fiber Insulation boards Compressive strength Thermal conductivity
CLC: TB383.1
Type: Master's thesis
Year: 2008
Downloads: 98
Quote: 1
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Abstract


Refractory fiber because of its low thermal capacity , low thermal conductivity, high heat-sensitive and other characteristics are as the preferred energy-saving materials , refractory fiber insulation board is due to its good compression resistance, thermal insulation, thermal shock resistance and other characteristics are widely used in steel , ceramics, aerospace and high-temperature industrial furnaces and other fields, but due to the current existence of refractory fiber insulation boards compressive strength , bulk density and low thermal conductivity of the contradiction between , which restricts the use of fire-resistant fiber insulation board . Nanomaterials have some macroscopic matter do not have the new features , and its ability to transfer heat is also different from the general materials , nano-sized heat transfer theory studies show that : in the traditional insulation materials, nano materials , it is possible to improve the insulation performance, which is the development of new insulation materials has opened up new avenues. In refractory fiber insulation board to add nano-materials, may also get pressure resistance and excellent thermal insulation performance of the new lightweight insulating boards, paper whereby of nanomaterials in new lightweight insulation panels in the role of exploratory research . In this study, refractory fibers and aquamarine powder as matrix material , the matrix material is added nano-materials , the use of two different production processes, to obtain the required samples ; utilization of refractory fiber insulation board thermal conductivity measurement , analysis of nanomaterials refractory fiber insulation board thermal Conductivity ; utilization shaped refractory products cold compressive strength test method to analyze nanomaterials compressive strength of refractory fiber insulation board impact analysis by SEM microstructure were investigated by means of the refractory fiber insulation board powder internal dispersion. The results showed that : ( 1 ) adding nano-materials to reduce the thermal conductivity of refractory fiber insulation board and to increase its compressive strength coefficient ; ( 2 ) the added amount of nano-materials has the lowest value ; ( 3 ) molding process of the compressive strength impact ; ( 4 ) addition of nanomaterials to improve the fire-resistant fiber insulation board uniformity of dispersion of the powder . In short, the refractory fiber insulation board to add nano-materials, obtained simultaneously with compression performance and good insulation properties of the new lightweight insulating boards.

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