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SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof

A technology of exterior wall paint and freeze-dried glue, applied in the direction of reflection/signal paint, coating, layered products, etc., can solve the problems of rough surface of coating, only reflection or heat insulation effect, single coating structure, etc. Inexpensive raw materials, excellent thermal insulation effect, simple process effect

Inactive Publication Date: 2015-03-18
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of coating has the following problems: ①The surface of the coating is rough and the decorative effect is poor; ②The coating has a single structure and only has the effect of reflection or heat insulation

Method used

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  • SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof
  • SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of heat insulation layer: add porous material by resin or white cement or lime mortar, and the porous material is made of SiO 2 It is composed of freeze-dried gel and other porous materials, which are uniformly stirred; wherein, the dosage of each component is as follows according to the mass ratio

[0034] Styrene acrylic emulsion: 20

[0035] Coalescent: 2

[0036] SiO 2 Freeze-dried glue: 10

[0037] Diatomaceous earth: 45

[0038] Glass beads: 15

[0039] Water: 50

[0040] (2) Reflective layer preparation: Add film-forming resin emulsion and film-forming aids into the container, stir evenly; add water, SiO 2 Freeze-dried gel, TiO 2 Nano-powder, add infrared reflective fillers, stir evenly to obtain a reflective layer; wherein, the dosage of each component is as follows according to the mass ratio:

[0041] Silicone resin: 20

[0042] Coalescent: 0

[0043] TiO 2 Nano powder: 25

[0044] SiO 2 Freeze-dried glue: 20

[0045]ZnO nano powd...

Embodiment 2

[0050] (1) Preparation of heat insulation layer: add porous material by resin or white cement or lime mortar, and the porous material is made of SiO 2 Freeze-dried gel and other porous materials are prepared by stirring evenly; wherein, the dosage of each component is as follows according to the mass ratio:

[0051] White cement: 35

[0052] Coalescent: 0

[0053] SiO 2 Freeze-dried glue: 5

[0054] Glass beads: 25

[0055] Meerschaum: 30

[0056] Water: 60

[0057] (2) Reflective layer preparation: Add film-forming resin emulsion and film-forming aids into the container, stir evenly; add water, SiO 2 Freeze-dried gel, TiO 2 Nano-powder, add infrared reflective fillers, stir evenly to obtain a reflective layer; wherein, the dosage of each component is as follows according to the mass ratio:

[0058] Acrylic: 30

[0059] Coalescent: 3

[0060] TiO 2 Nano powder: 10

[0061] SiO 2 Freeze-dried glue: 10

[0062] Al 2 o 3 Nano powder: 25

[0063] Nano ZnO powder: ...

Embodiment 3

[0068] (1) Preparation of heat insulation layer: add porous material by resin or white cement or lime mortar, and the porous material is made of SiO 2 Freeze-dried gel and other porous materials are prepared by stirring evenly; wherein, the dosage of each component is as follows according to the mass ratio:

[0069] Lime Mortar: 30

[0070] Coalescent: 5

[0071] SiO 2 Freeze-dried gel: 7

[0072] Ceramic beads: 15

[0073] Meerschaum: 30

[0074] Water: 70

[0075] (2) Reflective layer preparation: Add film-forming resin emulsion and film-forming aids into the container, stir evenly; add water, SiO 2 Freeze-dried gel, TiO 2 Nano-powder, add infrared reflective fillers, stir evenly to obtain a reflective layer; wherein, the dosage of each component is as follows according to the mass ratio:

[0076] F-C resin: 25

[0077] Coalescent: 5

[0078] TiO 2 Nano powder: 15

[0079] SiO 2 Freeze-dried glue: 30

[0080] Potassium hexatitanate whiskers: 5

[0081] Nano Zn...

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Abstract

The invention provides a SiO2 freeze-drying glue composite thermal insulation exterior wall coating with low price and excellent thermal insulation effect, and a preparation method thereof. The SiO2 freeze-drying glue composite thermal insulation exterior wall coating comprises a reflecting layer and a thermal insulation layer, and is characterized in that the reflecting layer is crosslinked to a film forming matter by resin emulsion through a film forming aid and is obtained by uniformly mixing water and an infrared reflecting filling, and the infrared reflecting filling includes SiO2 freeze-drying glue; the thermal insulation layer is obtained by adding a porous material and water into a resin or white cement or lime mortar and uniformly mixing, and the porous material includes SiO2 freeze-drying glue. The SiO2 freeze-drying glue composite thermal insulation exterior wall coating, provided by the invention, has cheap raw materials and simple process. The conventional thermal insulation coating can be replaced by the obtained composite thermal insulation exterior wall coating through compounding the thermal insulation layer and the reflecting layer, and the composite thermal insulation exterior wall coating has low price and excellent thermal insulation effect. The coating, provided by the invention, can be used for surfaces of buildings, automobiles, train storage tanks and the like, the total reflectivity about sunlight is more than 80%, and the thermal insulation efficiency is 15-20 DEG C.

Description

technical field [0001] The invention relates to the technical field of coatings applied to building exterior walls, specifically a SiO 2 Freeze-dried adhesive composite heat-insulating exterior wall paint and a preparation method thereof. technical background [0002] Traditional coatings mainly play an anti-corrosion and aesthetic role on the surface of materials and products. The functional coatings that have emerged in recent years, as the name suggests, are not only aesthetically pleasing and anti-corrosion, but also give coatings certain functions. Functional thermal insulation coatings are the product of a large-scale policy work launched by European countries to alleviate energy problems during the global oil crisis in the 1970s. Since 1987 in the United States, building insulation materials have accounted for about 81% of all insulation materials. In my country's energy consumption, building energy consumption accounts for about 1 / 4 of the country's total energy c...

Claims

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Application Information

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IPC IPC(8): B32B5/00C09D5/33C09D7/12C09D183/04C09D133/00C09D127/12C09D125/14C09D133/04
Inventor 苗蕾徐刚苏丽芬陈丽华周建华
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI