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Nano-titanium dioxide composite material for anti-infrared thermal insulation water-based coating and its preparation process

A technology of nano-titanium dioxide and water-based coatings, applied in the field of materials, can solve problems such as not being ideal, and achieve good hiding power, stable acid and alkali resistance, and good hydrophilicity

Active Publication Date: 2020-08-11
张建平 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-titanium dioxide is a white inorganic powder material with a large specific surface area and high surface energy. Due to its relatively high refractive index, it produces different degrees of scattering and diffuse reflection of infrared light, but it cannot be used alone. To achieve the ideal effect, if it is combined with other nanomaterials, it will play a synergistic function of nanomaterials, and the heat reflection efficiency will be greatly improved

Method used

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  • Nano-titanium dioxide composite material for anti-infrared thermal insulation water-based coating and its preparation process
  • Nano-titanium dioxide composite material for anti-infrared thermal insulation water-based coating and its preparation process
  • Nano-titanium dioxide composite material for anti-infrared thermal insulation water-based coating and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 5 parts of nano-titanium dioxide composite material and 95 parts of water-based acrylic resin coating, stir and mix evenly to form anti-infrared heat-insulating coating, wherein the composition and mass percentage of nano-titanium dioxide composite material are: 60% nano-titanium dioxide, 13% fumed white Carbon black, 13% nano lithopone, 6% nano talc, 3% dispersant and 5% coupling agent.

[0025] Above-mentioned nano titanium dioxide composite material is prepared as follows:

[0026] (1) After getting nano titanium dioxide, gas phase white carbon black, nano lithopone, nano talcum powder and grinding and mixing, obtain nano mixed powder material;

[0027] (2) Add the dispersant to absolute ethanol at a ratio of 1:1 by mass, stir and mix evenly at a speed of 500rpm to obtain the absolute ethanol solution of the dispersant, then mix the absolute ethanol solution of the dispersant at 500rpm Add it into deionized water under certain conditions, and after the addition...

Embodiment 2

[0031] Take 10 parts of nano-titanium dioxide composite material and 90 parts of water-based acrylic resin coating, stir and mix evenly to form anti-infrared heat-insulating coating, wherein the composition and mass percentage of nano-titanium dioxide composite material are: 60% nano-titanium dioxide, 13% fumed white Carbon black, 13% nano lithopone, 6% nano talc, 3% dispersant and 5% coupling agent.

[0032] Above-mentioned nano titanium dioxide composite material is prepared as follows:

[0033] (1) After getting nano titanium dioxide, gas phase white carbon black, nano lithopone, nano talcum powder and grinding and mixing, obtain nano mixed powder material;

[0034] (2) Add the dispersant to dehydrated ethanol at a ratio of 1:2 by mass, stir and mix evenly at a speed of 400rpm to obtain the dehydrated ethanol solution of the dispersant, then mix the dehydrated ethanol solution of the dispersant at 400rpm Add it into deionized water under certain conditions, and after the a...

Embodiment 3

[0038] Take 15 parts of nano-titanium dioxide composite material and 85 parts of water-based acrylic resin coating, stir and mix evenly to form anti-infrared heat-insulating coating, wherein the composition and mass percentage of nano-titanium dioxide composite material are: 60% nano-titanium dioxide, 13% fumed white Carbon black, 13% nano lithopone, 6% nano talc, 3% dispersant and 5% coupling agent.

[0039] Above-mentioned nano titanium dioxide composite material is prepared as follows:

[0040] (1) After getting nano titanium dioxide, fumed white carbon black, nano lithopone, and nano talc powder to grind and mix, obtain a nano mixed powder material;

[0041] (2) Join the dispersant in dehydrated alcohol according to the ratio of mass ratio 1:1.5, after stirring and mixing evenly with the rotating speed of 600rpm, obtain the dehydrated ethanol solution of the dispersant, then put the dehydrated alcohol solution of the dispersant at 600rpm Add it into deionized water under ...

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Abstract

Nano titania composite for anti-infrared heat-insulating waterborne coatings belongs to the technical field of material and comprises, by weight, 60-70% of nano titania, 5-15% of fumed silica, 5-15% of nano lithopone, 5-10% of nano talcum powder, 1-5% of a dispersant, and 2-8% of a coupling agent, wherein the nano titania is rutile nano titania, the fumed silica is waterborne nano fumed silica, the nano lithopone is a mixture of nano barium sulfate and nano zinc sulfate, the nano talcum powder is of white fiber form, and the coupling agent is a waterborne aminosilane coupling agent. The invention also discloses a preparation technique of the nano titania composite; the nano titania composite can be applied to waterborne coatings to reflect infrared thermal radiation, isolate heat and lowerthe temperature.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a nano-titanium dioxide composite material for anti-infrared heat-insulating water-based coatings and a preparation process thereof, which is applied to water-based coatings and can reflect infrared heat radiation to achieve the purpose of heat insulation and cooling. Background technique [0002] Generally, the wavelength of heat radiation is in the range of 0.38 to 1000 μm, but most of the heat radiation is in the range of infrared wavelengths of 0.76 to 20 μm. When sunlight irradiates the surface of an object, it will produce reflection, absorption and transmission. If a large amount of infrared waves are absorbed, the radiant energy will be converted into heat energy, which will increase the surface temperature of the object. The surface of the object radiates outward. If the surface of the object can reflect and radiate heat in a large amount, and at the same time prevent th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D5/33C09D7/62
CPCC08K2003/2241C08K2201/011C09D5/004C09D7/62C09D133/00C08K9/06C08K3/22C08K3/36C08K3/34C08K13/06
Inventor 张建平张川张千
Owner 张建平