SiO2 enriched nano composite heat preserving and thermal insulating paste and preparing process thereof

A nano-composite, thermal insulation technology, applied in the field of thermal insulation, can solve the problems of unsatisfactory thermal insulation effect, high density of dry body and high drying shrinkage rate, and achieve the effects of good strength, low thermal conductivity and simple process

Inactive Publication Date: 2009-07-01
上海暄洋化工材料科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

High drying shrinkage rate, high dry body density, high therm...
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Abstract

The invention relates to SiO2 nano composite thermal insulation paste, which is characterized in that the form of the SiO2 nano composite thermal insulation paste is a paste mixture, and the dried paste mixture becomes micro pores, nano holes and a fiber structure compound. The paste comprises the following components by weight percentage: 20 to 50 percent of SiO2 nano aerogel, 0 to 30 percent of inorganic closed-hole micro-bead material, 7 to 15 percent of expanded pearlite, 0 to 1 percent of bentonite, 2 to 6 percent of penetrating agent, 10 to 20 percent of adhesive, 3 to 6 percent of calcium silicate fiber, 0 to 5 percent of magnesium aluminum silicate fiber, 0 to 5 percent of aluminum silicate fiber, 0 to 40 percent of water, 0.1 to 2 percent of flame retardant, and 3 to 7 percent of pigment. A preparation device is a vacuum intake and stirring device.

Technology Topic

Examples

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Example Embodiment

[0011] The present description is further illustrated below through specific implementation examples, but the implementation examples are only used for illustration and cannot limit the scope of the present invention.
[0012] Case 1
[0013] Take 0.5 part of aluminum hydroxide, 0.6 part of acrylic emulsion, 0.6 part of silicone composite emulsion, 0.2 part of CH-3 super dispersant, add 4 parts of water after ball milling, add 0.6 part of calcium silicate fiber and 0.4 part of silicic acid during stirring Aluminum fiber, after 20 minutes, add 1 part of inorganic closed-cell microbead material, 0.55 part of expanded perlite, 0.06 part of bentonite, 0.5 part of titanium dioxide, stir well and add 3 parts of SiO 2 Nano aerogel, after continuing to stir evenly, add 1 part of inorganic closed-cell microbead material, 0.55 part of expanded perlite, 3 parts of SiO 2 Nano aerogel. After stirring evenly, the finished product can be obtained by static defoaming for 2 hours.
[0014] Measured by the Boer Institute of Solid State Physics, Tongji University, the density of the paste is 230 kg/m after curing 3 , the thermal conductivity is 0.052w/m.k, and the total reflectivity is 82%.
[0015] Case 2
[0016] Take 0.5 part of melamine cyanurate, 1 part of fluorocarbon emulsion, 0.2 part of sodium sulfate sulfosuccinate, add 3 parts of water after ball milling, add 0.6 part of calcium silicate fiber and 0.5 part of magnesium aluminum silicate while stirring Fiber, 0.4 part of aluminum silicate fiber, after 20 minutes, add 1 part of expanded perlite, 0.06 part of bentonite, 0.3 part of titanium dioxide, 0.2 part of iron oxide red, and then add 2 parts of SiO after fully stirring 2 Nano aerogel, after continuing to stir evenly, add 1 part of expanded perlite and 2 parts of SiO 2 Nano aerogel. After stirring evenly, the finished product can be obtained by static defoaming for 2 hours.
[0017] Measured by the Boer Institute of Solid State Physics, Tongji University, the density of the paste is 180 kg/m after curing 3 , the thermal conductivity is 0.039w/m.k.
[0018] Case 3
[0019] Take 0.5 part of ammonium polyphosphate, 0.6 part of aluminum phosphate solution, 0.6 part of silicone composite emulsion, 0.2 part of CH hyperdispersant, add 4 parts of water after ball milling, add 1 part of magnesium aluminum silicate fiber, 0.4 part of silicic acid during stirring Aluminum fiber, after 20 minutes, add 1 part of inorganic closed-cell microbead material, 0.06 part of bentonite, 0.3 part of titanium dioxide, 0.2 part of phthalocyanine blue, and then add 1.95 parts of SiO after fully stirring 2 Nano aerogel, after continuing to stir evenly, add 1 part of inorganic closed-cell microbead material, 1.95 parts of SiO 2 Nano aerogel. After stirring evenly, the finished product can be obtained by static defoaming for 2 hours.
[0020] Measured by the Boer Institute of Solid State Physics, Tongji University, the density of the paste is 240 kg/m after curing 3 , the thermal conductivity is 0.056w/m.k.
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Description & Claims & Application Information

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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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