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Low-carbon energy-saving coating

An energy-saving coating and coating technology, which is applied in the direction of epoxy resin coating, reflection/signal coating, polyurea/polyurethane coating, etc., can solve the problems of conduction, coating surface heat loss, and amplifying coating phonon scattering.

Inactive Publication Date: 2014-05-14
SHENZHEN RUNWU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nano-sized interface and grain boundary amplify the phonon scattering effect of the coating, so that the heat on the coating surface cannot be conducted to the inside of the coating body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 2

[0029] Example 1 Preparation of Titanium Dioxide Coated Hollow Silica Reflective Heat Ray Material

[0030] Add 5g of hollow silica powder to a mixed solution of 1ml of glacial acetic acid, 1ml of water, and 5ml of absolute ethanol under stirring conditions at 25°C, and mix thoroughly to obtain a uniformly dispersed mixed solution.

[0031] Dissolve 2.2ml of butyl titanate in 5ml of absolute ethanol within 10min at 25°C under the action of ultrasonic waves and stirring, and slowly add it dropwise to the above-mentioned hollow silica mixture, let it stand for 2h, and in the state of stirring Dry at 80°C for 1 hour to obtain a white gel. Place the above white gel in a temperature-programmed furnace, raise the temperature to 350°C at a rate of 2°C / min, and keep the temperature constant for 1 hour to obtain a nano-titanium dioxide-coated hollow bismuth. Composite material powder A1 of silicon oxide.

Embodiment 2

[0032] Example 2 Preparation of Tin Oxide-Indium Oxide Coated Hollow Silica Reflective Heat Ray Material

[0033] Use one of tin tetrachloride or tin sulfate to prepare 0.1-2mol / L solution A. Use one of indium nitrate, indium chloride and indium sulfate to prepare 0.1-2mol / L solution B. The two solutions of A and B are mixed, and the mixing ratio is between 1~10:10~1. Add hollow silicon dioxide to the mixed solution, stir to suspend it, add ammonium carbonate solution, adjust the solution pH to 5-9, control the temperature at 25°C, deposit the hydrolyzed product on the hollow silicon dioxide, filter and dry it at 500 °C to 700 °C for 1 hour heat treatment to obtain the tin oxide-indium oxide film-coated hollow silicon dioxide reflective heat ray material A2.

Embodiment 3

[0034] Example 3 Preparation of metal silver-coated hollow silica reflective heat ray material

[0035] In 100ml of silver nitrate aqueous solution with a concentration of 0.1-10%, add 10g of hollow silicon dioxide, add 5ml of 1% ammonia water, add 2ml of formaldehyde aqueous solution while stirring, and the reaction temperature is 25°C, so that the produced nano-silver particles are deposited on the hollow two A reflective film is formed on silicon oxide. After filtering and drying, the heat-ray-reflecting hollow silica material A3 coated with a silver layer is obtained.

[0036] Preparation method of infrared emitting powder

[0037]Using chemically pure ferric oxide, manganese dioxide, copper oxide, cobalt trioxide, and cordierite as raw materials, using the doping process between transition metal oxides to introduce dopants into the lattice and destroy its lattice Periodically, the crystal grains are finely distributed, and a variety of impurity levels are locally formed...

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PUM

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Abstract

The invention discloses a low-carbon energy-saving coating, and concretely relates to a coating for the reflection, heat insulation and emission of solar radiation and other heat radiation rays. The coating is composed of a hollow silica material with the surface coated with a nano-material, a heat ray reflection characteristic material, self made infrared emission powder, a functional filler and an aqueous resin liquid. The coating has a heat insulation coefficient of 0.01-0.5W / m.k, a reflectivity to heat rays of above 90%, and a heat emissivity of above 80%.

Description

Technical field: [0001] The invention relates to a low-carbon energy-saving coating, which relates to a coating for reflecting, insulating and emitting heat rays of solar radiation and other thermal radiation. Mainly used in the interior and exterior walls of hotels, hospitals, schools, warehouses, factories, office buildings, residences and other buildings; pipelines, oil tanks or ship decks, containers and other fields. Background technique: [0002] The Chinese government has proposed a goal of reducing carbon dioxide emissions per unit of GDP by 40-45% compared with 2005 in 2020, and included it in the "Twelfth Five-Year Plan" and "Thirteenth Five-Year Plan". It is possible to pilot the implementation of total energy consumption control. [0003] Building energy consumption (including construction energy consumption, living energy consumption, heating and air conditioning, etc.) accounts for about 30% of the total energy consumption of the whole society, of which heatin...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D163/00C09D161/20C09D175/14C09D5/33C09D7/12
Inventor 唐永炳李红剑聂杰程先华
Owner SHENZHEN RUNWU TECH CO LTD
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