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Preparation method of photochromic heat-insulation functional coating

A functional coating and photochromic technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problem of single function and achieve strong safety performance, good photochromic and heat insulation performance, and good adhesion.

Inactive Publication Date: 2014-10-15
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials have the disadvantage of relatively simple functions, such as saving energy in summer and consuming energy in winter; or vice versa, saving energy in winter and consuming energy in summer

Method used

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  • Preparation method of photochromic heat-insulation functional coating
  • Preparation method of photochromic heat-insulation functional coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step one, modification of glass beads:

[0021] (1) Take 1g of hollow glass beads in 1% sodium hydroxide solution, soak for 2h, filter, wash until neutral, and dry at 80℃ for 3h;

[0022] (2) Configure a mixed solution of ethanol and water with a volume ratio of 9:1, add it to the hollow glass beads prepared in (1), stir evenly at 70°C, add 1gKH550, stir for 4h, and remove the reacted glass beads Filter and dry at 100°C for 4 hours to obtain KH550 modified hollow glass beads.

[0023] Step two, preparation of photochromic thermal insulation functional coating:

[0024] (1) Add 1.6g diluent, 0.1g silane coupling agent, 0.1g defoamer, 0.1g dispersant, 4g modified hollow glass micro-glass to 20g epoxy resin with constant stirring at 50r / min~200r / min Beads, 0.8g nano-silica, 1g talc, 5mL photochromic material, 4g curing agent, stirred for 30-50min to obtain photochromic thermal insulation functional coating;

[0025] (2) Take a clean 15.5×12cm ordinary transparent glass and place i...

Embodiment 2

[0028] Step one, modification of glass beads:

[0029] (1) Take 2g of hollow glass beads in 1% sodium hydroxide solution, soak for 2h, filter, wash until neutral, and dry at 80℃ for 3h;

[0030] (2) Configure a mixed solution of ethanol and water with a volume ratio of 9:1, add it to the hollow glass beads prepared in (1), stir evenly at 70°C, add 0.5g KH550, stir for 4h, and remove the reacted glass Microbeads were filtered and dried at 100°C for 4h to obtain KH550 modified hollow glass microbeads.

[0031] Step two, preparation of photochromic thermal insulation functional coating:

[0032] (1) Add 1.7g diluent, 0.1g silane coupling agent, 0.1g defoamer, 0.1g dispersant, and 3g modified hollow glass micro to 20g epoxy resin with constant stirring at 50r / min~200r / min Beads, 0.4g nano-silica, 1g talc, 5mL photochromic material, 6.2g curing agent, stirred for 30-50min to obtain photochromic thermal insulation coating;

[0033] (2) Take a clean 15.5×12cm ordinary transparent glass and p...

Embodiment 3

[0035] Step one, modification of glass beads:

[0036] (1) Take 0.9g hollow glass beads in 1% sodium hydroxide solution, soak for 2h, filter, wash until neutral, and dry at 80℃ for 3h;

[0037] (2) Configure a mixed solution of ethanol and water with a volume ratio of 9:1, add it to the hollow glass beads prepared in (1), stir evenly at 70°C, add 0.5g KH550, stir for 4h, and remove the reacted glass Microbeads were filtered and dried at 100°C for 4h to obtain KH550 modified hollow glass microbeads.

[0038] Step two, preparation of photochromic thermal insulation functional coating:

[0039] (1) Add 0.8g diluent, 0.05g silane coupling agent, 0.05g defoamer, 0.05g dispersant, 0.6g modified hollow to 6.1g epoxy resin which is continuously stirred at 50r / min~200r / min Glass beads, 0.1g nano-silica, 0.2g talc powder, 5mL photochromic material, 0.6g curing agent, stirred for 30-50min to obtain photochromic thermal insulation functional coating;

[0040] (2) Take a clean 15.5×12cm ordinary t...

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Abstract

The invention relates to a preparation method of a photochromic heat-insulation functional coating. Components of the coating comprise epoxy resin, a diluent, a curing agent, an antifoaming agent, a dispersant, talcum powder, nanometer silica, titanium dioxide, modified hollow glass beads, a silane coupling agent and a photochromic material. A preparation method of the coating comprises the following steps: respectively adding the diluent, the silane coupling agent, the antifoaming agent, the dispersant, the nanometer silica, the modified hollow glass beads, the talcum powder, titanium dioxide, the photochromic material and curing agent to the epoxy resin continuously stirred under 50-200r / min, and stirring for 30-50min to obtain the photochromic heat-insulation functional coating. The photochromic heat-insulation functional coating prepared through the method has very good adhesion, impact strength and stability, also has the good photochromism and heat insulation properties.

Description

Technical field [0001] The invention relates to a preparation method of a photochromic heat-insulating functional coating. In particular, it relates to a photochromic thermal insulation functional coating that can be coated on various glass, plastic and metal surfaces. Background technique [0002] After the 1970s, the world's climate warmed and the earth's energy was depleted day by day, and energy saving became an important research topic. In my country's energy consumption, building energy consumption accounts for as much as 30% to 40% of the total energy consumption. Improving the thermal insulation performance of buildings, especially building glass, is an important way to save energy. In order to improve the heat insulation performance of glass, people have developed coated glass, Low-E glass and heat reflecting glass to reduce the solar radiation through the glass. However, these materials have the shortcomings of relatively simple functions, such as energy saving in sum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/00
Inventor 刘宝春胡晓东朱明明梁振义
Owner NANJING UNIV OF TECH