Method for preparing brucite fiber reinforced SiO2 aerogel heat-insulating material
A technology of brucite fiber and thermal insulation materials, applied in chemical instruments and methods, silicon dioxide, inorganic chemistry, etc., can solve problems such as expensive raw materials, high equipment requirements, and large particle size of sunscreen agents, and achieve technological and equipment Effects of simplification, enhanced mechanical properties, and good hydrophobicity
Inactive Publication Date: 2006-07-19
CHANGAN UNIV
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention discloses a preparation method for brucite fiber reinforcement SiO2 aerogel heat insulating material. Wherein, with industrial water glass or silicasol and natural brucite staple fiber as material, using high-energy ball grinding and chemical dispersion method to realize size refining for inorganic opacifier and even distribution before sol solidification; splitting the natural brucite staple fiber into nano diameter with chemical dispesion method as reinforcing material. This invention overcomes the volume shrinkage problem by substituting solvent and hydrophobisation treatment and fiber reinforcement. The materila has density as 0.20~0.50g/cm3 and thermal conductivity factor as 0.010~0.030w/m*k.
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Property | Measurement | Unit |
Density | 0.21 | g/cm³ |
Thermal conductivity | 0.012 | W·k/m |
Density | 0.43 | g/cm³ |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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