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Preparation and Characterization of Building Waterborne Thermal Insulation Coating Using Composite Technology

Author: WangXiaoWei
Tutor: SongShenHua；TangGuoYi
School: Harbin Institute of Technology
Course: Materials Science
Keywords: External wall insulation coating Zirconia Cordierite Cenospheres Composite powders Phase change energy storage microcapsules
CLC: TQ630.7
Type: Master's thesis
Year: 2010
Downloads: 215
Quote: 0
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Abstract


With the continuous development of economic, energy and environmental pollution problems have become increasingly prominent, since China's \Insulation technology is utilized to reduce the heat transfer barrier principle, to reduce the principle of absorbing sunlight to achieve the purpose of heat insulation, reducing the amount of intrusion of the outside solar. Thus become in recent years one of the hot spots in the efficient use of energy and energy-saving field. External wall insulation coating is the study of a class, however, directly restricts their application of the key issues the single use insulation ineffective, one of the main methods to solve this problem is to use composite insulation technology. This topic using the method of the Paint Preparation of paste to the physical and chemical properties and stability, low price of cordierite and zirconia as functional filler near-infrared radiation, widely used in the market, good chemical stability of rutile titanium dioxide pigment, prepared a composite wall insulation coatings. Microcapsules of phase change energy storage materials, and research laboratory homemade the zirconia coated cordierite composite powders and cenospheres insulation in the exterior wall insulation coating effect. By scanning electron microscopy, a laser particle size analyzer, differential scanning calorimetry analysis of the phase change energy storage microcapsules was analyzed, to prove that the microcapsules prepared morphology of nearly spherical, uniform particle size, and has good storage (heat ) effect. Using SEM for the preparation of zirconia-coated cordierite morphology analysis by SEM observation of the layer of nearly spherical zirconia composite powder during powerful ultrasound under conditions in the growth of the surface of the sheet of cordierite oxide, the Zirconium no shedding phenomenon, and with cordierite combined well. Focus on testing the relationship between the content in the insulation coating of zirconia, cordierite, titanium dioxide, cenospheres insulation effect. In addition, laboratory prepared microcapsules of phase change energy storage materials, zirconia-coated cordierite composite powders as a function of thermal insulation coatings filler, insulation and the insulation of the composite powders effect with a single powder were compared. The results show that when zirconia and cordierite compound as a functional filler, with the proportion of the pigment titanium dioxide is 2:1, better insulation effect; hollow microspheres as a function of filler, the hollow microspheres in the powder the mass fraction of 10wt%, the best insulation effect; laboratory homemade phase change storage microcapsule material and zirconia coated cordierite composite powders separately added, 2mm thick dry film insulation properties with a blank sample the temperature reached 15 ℃;, zirconia coated cordierite composite powders insulation effect is better than both complex effects can be used as an ideal functional filler. A preliminary exploration of this topic in the exterior wall insulation coating of flame retardant magnesium hydroxide, prepared paint dry film, flame retardancy and smoke suppression effect, and studies have shown that when the content of magnesium hydroxide 30wt% powder, when the case of the coating insulation performance is reduced less than 2 ° C, a dry film having a significant flame retarding effect.

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